Publications

Publications of MJ Ryan

Google Profile

For publications of other Lab Members click on them in People and you will directed to their personal web sites.

Check Google Profiles for most up-to-date publication list. 

PDF files are for single-use non-profit purposes.

2024/in press

Bredeson, J.V. et al. [MJR 1 of 35 authors]. 2024. Conserved chromatin and repetitive patterns reveal slow genome evolution in frogs. Nature Communications 15:579 doi.org/10.1038/s41467-023-43012-9

Larter, L.C.; Ryan, M.J. 2024. Female preferences for more elaborate signals are an emergent outcome of male chorusing interactions in túngara frogs. The American Naturalist 203:92-108.

Larter,  L.C.; Ryan, M.J. 2024. Túngara frog call-timing decisions arise as internal rhythms interact with fluctuating chorus noise. Behavioral Ecology. 35(4), arae034. https://doi.org/10.1093/beheco/arae034

Sealey, BA; James, LS; Cohen, G; Ryan, MJ; Page, RA. in press. Rapid foraging risk-assessments in the Jamaican fruit eating bat, Artibeus jamaicensis. Animal Behaviour.

Wilhite, K.; Ryan, M.J. 2024. Condition dependence in the sexual communication system of the túngara frog. Behavioral Ecology and Sociobiology. 78:54 https://doi.org/10.1007/s00265-024-03470-7

2023

Ryan, M.J. 2023. Sexual selection and the animal’s mating mind. pp. 16-32. In: D.M. Buss, editor, The Oxford Handbook of Human Mating. Oxford University Press, Oxford.

Dixon, M.M.; Carter, G.; Ryan, M.J.; Page, R.A. 2023. Spatial learning overshadows learning odors and sounds in both predatory and frugivorous bats. Behavioral Ecology.

2022

Ryan, M.J. 2022. Sexual selection: Aesthetic appreciation and mate choice. pp. 218-239.  In: M. Skov & M. Nadal editors, The Routledge International Handbook of Neuroaesthetics. Routledge.

Ryan, M.J. 2022. Evolution of behavior. pp. 397-426. In: J.J. Bolhuis,  L.A. Giraldeau, J.A. Hogan, editors, The Behavior of Animals, Mechanisms, Function, and Evolution. John Wiley & Sons, Hoboken, New Jersey. [to purchase]

Ryan, M.J. 2022. Secret worlds: the extraordinary senses of animals. [book review] The Quarterly Review of Biology 97:55.

Christiano, B.M.; Ryan, M.J. 2022.  Diet of Brazilian Free-Tailed Bats (Tadarida brasiliensis): A review. Southwestern Naturalist 67:158-162. DOI:10.1894/0038-4909-67.2.158

Coss, D.; Ryan, M.J.; Page, R.A.; Hunter, K.L.; Taylor, R.C. 2022. Can you hear/see me? Multisensory integration of multimodal noise in túngara frogs. Behavioral Ecology  doi.org/10.1093/beheco/arac061

Dixon, M.M.; Jones, P.L.; Ryan, M.J.; Carter, G.C.; Page, R.A. 2022. Long-term memory in frog-eating bats. Current Biology     doi.org/10.1016/j.cub.2022.05.031.

James, L.S.; Baier, A.L.; Page, R.A.; Clements, P.; Hunter, K.L.; Taylor, R.C.; Ryan, M.J. 2022. Cross-modal facilitation of auditory discrimination in a frog.  Biology Letters  doi.org/10.1098/rsbl.2022.0098

James, L.S.; Taylor, R.C.; Hunter, K.L.; Ryan, M.J. 2022. Evolutionary and allometric insights into anuran auditory sensitivity and morphology.  Brain, Behavior and Evolution  DOI: 10.1159/000521309

Larter, L.C.; Bernal, X.E.; Page, R.A.; Ryan, M.J. 2022. Local competitive environment and male condition influence within-bout calling patterns in túngara frogs. Bioacoustics  https://doi.org/ 10.1080/09524622.2022.2070544

Mendelson, T.C.; Ryan, M.J. 2022. Sex and design in our evolutionary cousins: The perception of beauty in nature. Metode Science Studies Journal doi.org/10.7203/metode.13.24202

Ponnath, A; Ryan, M.J.; Fang, Z.; Farris, H.E. 2022.  Tuned in to the information bearing element in communication sounds: single cell sensitivity in the túngara frog midbrain to frequency modulated signals. PLoS ONE   doi.org/10.1371/journal. pone.0268383

Rosenthal, G.G.; Ryan, M.J. 2022. The ascent of women: Mate choice research since Darwin. Science 375, eabi6308. 

Zhu, B-C.; Yang, Y.; Zhou, Y.; Deng, K.; Wang, T-L.; Wang, J-C.; Tang, Ye-Z.; Ryan, M.J.; Cui, J. 2022. Multisensory integration facilitates perceptual restoration of an interrupted call in a frog. Behavioral Ecology   doi.org/10.1093/beheco/arac053

2021

Ryan, M.J. 2021. Darwin, sexual selection, and the brain. Proceedings of the National Academy of Sciences. DOI 10.1073/pnas.2008194118

Ryan, M.J. 2021. Resolving the problem of sexual beauty. pp. 162-182. In: J.M. DeSilva, editor, A Most Interesting Problem. What Darwin’s Descent of Man Got Right and Wrong About Human Evolution. Princeton University Press, Princeton.

Connelly, A.D.; Ryan, M.J. 2021. Phenotypic variation in an asexual-sexual fish system: visual lateralization. Frontiers in Ecology and Evolution

Hemingway, C.T.; Aversa, J.; Ryan, M.J.; Page, R.A. 2021. Context-dependent preferences in wild fruit bats, Animal Behaviour 179:65-72

James, L.S.; Halfwerk, W.; Hunter, K.L.; Page, R.A.; Taylor, R.C.; Wilson, P.S.; Ryan, M.J. 2021.  Covariation among multimodal components in the túngara frog’s courtship display. Journal of Experimental Biology 224, jeb241661

Leslie, C.E.; Walkowski, W.; Rosencrans, R.F.; Gordon, W.C.; Bazan, N.G.; Ryan, M.J.; Farris, H.E. 2021. Estrogenic modulation of retinal sensitivity in reproductive female túngara frogs.  Integrative and Comparative Biology

Schlaepfer, M.A.; Caldwell, D.; Rorabaugh, J.C.; Ryan, M.J.; Stump, S.; Sredl, J. 2021.  The use of evoked vocal responses to detect cryptic, low-density frogs in the field. Journal of Herpetology 55: 174-180.

Taylor, R.C.; Wilhite, K.O.; Ludovici, R.J.; Mitchell, K.M.; Halfwerk, W.; Page, R.A.; Ryan, M.J.; Hunter, K.L. 2021. Complex sensory environments alter mate choice outcomes. Journal of Experimental Biology doi:10.1242/jeb.233288

Yin, W.;  Xue, Q.; Tian, B.; Yang, S.; Li, Z.; Chen, Z.; Ryan, M.J.; Hoffmann, A.A. 2021. Flexible habitat choice by aphids exposed to multiple cues reflecting present and future benefits. Behavioral Ecology 32:286-296.

Zhu, B.; Zhou, Y.; Yang, Y.; Deng, K.; Wang, T.; Wang, J.; Tang, Y.; Ryan, M.J.; Cui, J. 2021. Multisensory modalities increase working memory for mating signals in a treefrog. Journal of Animal Ecology 90:1455-1465

2020

Brenowitz, E.A.; Ryan, M.J.; Zakon, H.H. 2020. Dr. Walter Wilczynski, 1952 – 2020. Brain Behavior and Evolution DOI: 10.1159/000510074 

Goutte, S.; Muñoz, M.I.; Ryan, M.J.; Halfwerk, W. 2020. Floating frogs sound larger: environmental constraints on signal production drives call frequency changes. The Science of Nature   doi.org/10.1007/s00114-020-01697-8

Hemingway, C.T.; Ryan, M.J.; Page, R.A. 2020. State-dependent learning influences foraging behaviour in an acoustic predator. Animal Behaviour 163:33-38

James, L.S.; Ryan, M.J. 2020. Perspectives regarding future experiments on categorical perception: a comment on Green et al. Behavioral Ecology.

Jones, P.L.; Divoll, T.; Dixon, M.M.; Aparicio, D.; Cohen, G.; Mueller, U.; Ryan, M.J.; Page, R.A. 2020. Sensory ecology of the frog-eating bat, Trachops cirrhosus, from DNA metabarcoding and behavior. Behavioral Ecology

Kime, N.M.; Goutte, S.; Ryan, M.J. 2020. Arginine vasotocin affects vocal behavior but not selective responses to conspecific calls in male túngara frogs. Hormones and Behavior

Leslie, C.E.; Rosencrans, R.F.; Walkowski, W.; Gordon, W.C.; Bazan, N.G.; Ryan, M.J.; Farris, H.  2020. Reproductive state modulates retinal sensitivity to light in female túngara frogs. Frontiers in Behavioral Neuroscience doi: 10.3389/fnbeh.2019.00293

Lynch, K.S.; Ryan, M.J. 2020. Understanding the role of incentive salience in sexual decision-making. Integrative and Comparative Biology  pp. 1-10, DOI:10.1093/icb/icaa094

2019

Ryan, M.J.; Akre, K.A.; Baugh, A.T.; Bernal, X.E.; Lea, A.L.; Leslie, C.; Still, M.B.; Wylie, D.; Rand, A.S. 2019. Nineteen years of consistently positive and strong female mate preferences despite individual variation. The American Naturalist  194:125-134.

Ryan, M.J.; Page, R.A.; Hunter, K.L.; Taylor, R.C. 2019.  “Crazy love”—nonlinearity and irrationality in mate choice. Animal Behaviour 147:189-198 

Cronin, A.D.; Ryan, M.J.; Page, R.A.; Hunter, K.L.; Taylor, R.C.  2019. Environmental heterogeneity alters mate choice behavior for multimodal signals. Behavioral Ecology and Sociobiology 73, 43

Garcia, M.J.; Rodríguez-Brenes, S.; Kobisk, A.; Adler,  L.; Ryan, M.J.; Taylor, R.C.; Hunter, K.L. 2019. Epigenomic changes in the túngara frog (Physalaemus pustulosus): Possible effects of introduced fungal pathogen and urbanization. Evolutionary Ecology

Hemingway, C.T.; Lea A.M., Page, R.A.; Ryan, M.J. 2019Effects of information load on response times in frogs and bats: mate choice vs. prey choice. Behavioral Ecology and Sociobiology

Hemingway, C.T., Ryan, M.J., Page, R.A. 2019. Transitive foraging behavior in the frog–eating bats. Animal Behaviour  154:47-55.

McClelland, B.E.; Ryan, M.J.; Wilczynski, W. 2019. Does sexual dimorphism vary by population? Laryngeal and ear anatomy in cricket frogs (Acris crepitans). Current Zoology.

Still, M.B.; Lea, A.M.; Hofmann, H.A.; Ryan, M.J. 2019. Multimodal stimuli regulate reproductive behavior and physiology in male túngara frogs. Hormones and Behavior

Smit, J.A.H.; Loning, H.; Ryan, M.J.; Halfwerk, W. 2019. Environmental constraints on  size–dependent signalling affects mating and rival interactions. Behavioral Ecology.

Taylor, R.C.; Akre, K.A.; Wilczynski, W; Ryan, M.J. 2019. Behavioral and neural auditory thresholds in a frog. Current Zoology.

2018

Ryan, M.J. 2018. A Taste for the Beautiful: The Evolution of Attraction. Princeton University Press, Princeton, New Jersey. [to purchase] [translations in Spanish, Japanese, and Korean are available]

Ryan, M.J. 2018.  Animal vocal communication: assessment and management roles. second edition. [book review]. Quarterly Review of Biology 93:39.

Baugh, A.T.; Gridi-Papp, M.; Ryan, M.J. 2018. A laryngeal fibrous mass is essential to the attractiveness of a multicomponent call in túngara frogs (Physalaemus pustulosus). Bioacoustics 27:231-243.

Halfwerk, W.; Blaas, M.; Kramer, L.; Hijner, N.; Trillo, P.A.; Bernal, X.E.; Page, R.A.; Goutte, S; Ryan, M.J.; Ellers, J. 2018. Adaptive changes in sexual signaling in response to urbanization. Nature Ecology and Evolution

Hemingway, C.T.; Ryan, M.J.; Page, R.A. 2018. Cognitive constraints on optimal foraging in frog-eating bats. Animal Behaviour 143:43-50.

Kime, N.M.; Ryan, M.J.; Wilson, P.S. 2018. Modelling the production of complex calls in the túngara frog (Physalaemus pustulosus). Bioacoustics

Salas, A.K.; Wilson, P.S.; Ryan, M.J. 2018.  Acoustic communication in the Bocon toadfish (Amphichthys cryptocentrus).   Environmental Biology of Fishes 101:1175-1193.

2017

Ryan, M.J.; Jordan, L.J. 2017. Courtship and mate choice. In: Call, J., editor-in-chief, APA Handbook of Comparative Psychology: Vol. 1. Basic Concepts, Methods, Neural Substrate, and Behavior. Chapter 37.35

Baugh A.T.; Ryan, M.J. 2017. Vasotocin induces sexually dimorphic effects on acoustically-guided behavior in a tropical frog. Journal of Comparative Physiology A

Farris, H.E.; Ryan, M. J. 2017. Schema versus primitive perceptual grouping: The relative weighting of sequential versus spatial cues during an auditory grouping task in frogs. Journal of Comparative Physiology A 203:175-182.

Gomes, D.G.E.; Halfwerk, W.; Taylor, R.C.; Ryan, M.J.; Page, R.A. 2017. Multimodal weighting differences by bats and their prey: probing natural selection pressures on sexually selected traits. Animal Behavior 134:99-102

Halfwerk, W.; Smit, J.; Loning, H.; Lea, A.M.; Geipel, I.; Ellers, J.; Ryan, M.J. 2017. Environmental conditions limit attractiveness of a sexual signal. Nature Communications DOI: 10.1038/s41467-017-02067-1

Hemingway, C.T.; Ryan, M.J.; Page, R.A.  2017. Rationality in decision-making in the fringe-lipped bat, Trachops cirrhosus. Behavioral Ecology and Sociobiology. 71:94. doi:10.1007/s00265-017-2321-5 

Laverde-R, O.; Ryan, M.J.; Cadena, D.  2017. Evolution of bird communication signals: transference between signals mediated by sensory drive. bioRxiv, 142463.

Taylor, R.C.; Page, R.A.; Klein, B.A.; Ryan, M.J.; Hunter, K.L. 2017. Perceived synchrony of frog multimodal signal components is influenced by content and order. Integrative and Comparative Biology 57:902-909. https://doi.org/10.1093/icb/icx027

Venetar, K.; Ryan, M.J.; Wilczynski. 2017. Responses of male cricket frogs (Acris crepitans) to attenuated and degraded advertisement calls. Ethology

2016

Baugh, A.T.; Ryan, M.J.; Bernal, X.; Rand, A.S.; Bee, M.A. 2016. Female túngara frogs do not experience the continuity illusion. Behavioral Neuroscience 130:62-74.

Cui,J.; Song, X.; Zhu,B.; Fang, G.; Tang, Y.;  Ryan, M.J. 2016. Receiver discriminability drives the evolution of complex sexual signals by sexual selection. Evolution 70:922–927.

Gomes, D.G.E; Page, R.A.; Geipel, I; Taylor, R.C.; Ryan, M.J.; W. Halfwerk. 2016. Bats perceptually weight prey cues across sensory systems when hunting in noise. Science 353:1227-1280. Suppl

Halfwerk, W.; Lea, A.; Guerra, M.; Page, R.A.; Ryan, M.J. 2016. Vocal responses to noise reveal the presence of the Lombard effect in a frog. Behavioral Ecology 27:669-676.

Halfwerk, W.; Ryan, M.J.; Wilson, P.S. 2016. Wind-and rain-induced vibrations impose different selection pressures on multimodal signaling. The American Naturalist 188:279-288.

Jansen, M.; Plath, M.; Brusquetti, F.; Ryan, M.J. 2016.  Asymmetric shift in advertisement calls of sympatric frogs. Amphibia Reptilia DOI:10.1163/15685381-00003038

Kosch, T.A.; Bataille, A.; Didinger, C.; Eimes, J.E.; Rodríguez-Brenes, S.; Ryan, M.J.; Waldman, B. 2016. Major histocompatibility selection dynamics in pathogen-infected túngara frog (Physalaemus pustulosus) populations.  Biology Letters 12: 20160345. http://dx.doi.org/10.1098/rsbl.2016.0345

Rodríguez-Brenes, S.; Rodriguez, D.; Ibáñez, R.; Ryan, M.J. 2016. Spread of amphibian chytrid fungus across lowland populations of túngara frogs in Panamá. PLoS ONE 11(5): e0155745. doi:10.1371/journal.pone.0155745

Stange, N.; Page, R.A.; Ryan, M.J.; Taylor, R.C. 2016. Interactions between complex multisensory signal components result in unexpected mate choice responses. Animal Behaviour

2015

Ryan, M.J.; Leslie, C.; Ryan, E.S. 2015. Physalaemus pustulosus (túngara frog). Sexual communication. Herpetological Review 46:415-416.

Jones, P.L.; Ryan, M.J.; Chittka, L. 2015. The influence of past experience with flower reward quality on social learning in bumblebees. Animal Behaviour

Jordan, L.J.; Ryan, M.J. 2015. The sensory ecology of adaptive landscapes. Biology Letters 11: 20141054. http://dx.doi.org/10.1098/rsbl.2014.1054

Lea, A.L.; Ryan, M.J. 2015. Irrationality in  mate choice revealed by túngara frogs.  Science 349:964-966. Suppl materials

Rhebergen, F.; Taylor, R.C.; Ryan, M.J.; Page, R.A.; Halfwerk,W. 2015. Multimodal cues improve prey localisation under complex environmental conditions. Proceedings of the Royal Society B. doi: 10.1098/rspb.2015.1403.

Smith, C.C.; Harris, R.M.; Lampert, K.P.; Schartl, M.; Hofmann, H.A.; Ryan, M.J. 2015. Copy number variation in the melanocortin 4 receptor gene and alternative reproductive tactics the swordtail Xiphophorus multilineatus. Environmental Biology of Fishes DOI 10.1007/s10641-014-0234-

2014

Ryan, M.J. 2014. When seeing is deceiving: a comment on Kelley and Kelley. Behavioral Ecology 25:273-466-467.

Ryan, M. J.; Guerra, M.A. 2014. The mechanism of sound production in túngara frogs and its role in sexual selection and speciation. Current Opinion in Neurobiology 28:54-59.

Ryan, M.J.; Taylor, R.C. 2014. Measures of mate choice: comment on Dougherty and Shuker.  Behavioral Ecology.

Akre, K.L.; Bernal, X.; Rand, A.S.; Ryan, M.J. 2014. Harmonic calls and indifferent females: no preferencs for human consonance in an anuran. Proceedings of the Royal Society B 281:20140986 oi:10.1098/rspb.2014098.

Guerra, M.; Ryan, M.J.; Cannatella, D.C. 2014. Ontogeny of sexual dimorphism in the larynx of the túngara frog: Physalaemus pustulosus. Copeia 2014:123-129.

Halfwerk, W.; Dixon, M.M.; Ottens, K.J.; Taylor, R.C.; Ryan, M.J; Page, R.A.; Jones, P.L. 2014. Risks of multimodal signaling: bat predators attend to dynamic motion in frog sexual displays. The Journal of Experimental Biology 217:3038-3044  doi:10.1242/jeb.107482

Halfwerk,W.; Page, R.A.; Taylor, R.C.; Wilson, P.S.; Ryan, M.J. 2014. Crossmodal comparisons of signal components allow for relative-distance assessment. Current Biology dx.doi.org/10.1016/j.cub.2014.05.068

Halfwerk, W. Jones, P.L.; Taylor, R.C.; Ryan, M.J.; Page, R.A. 2014. Risky ripples allow bats and frogs to eavesdrop on a multisensory sexual display. Science 343:413-416. (Suppl. Material)

Hauser, M.D.; Yang, C.; Berwick, R.; Tattersall, I.; Ryan, M.; Watumull, J.; Chomsky, N.; Lewontin, R. 2014. The mystery of language evolution.  Frontiers in Psychology 5, Article 401, doi: 10.3389/fpsyg.2014.00401

Jones, P.L.; Ryan, M.J.; Page, R.A. 2014. Population and seasonal variation in response to prey calls by an eavesdropping bat. Behavioral Ecology and Sociobiology 68:605-615. DOI 10.1007/s00265-013-1675-6

2013

Ryan, M.J. 2013.  The importance of integrative biology to sexual selection and communication.  pp. 233-255. In: U. Stegmann, editor, Animal Communication Theory: Information and Influence. Cambridge University Press, Cambridge UK.

Ryan, M.J.; Cummings, M.E. 2013. Perceptual biases and mate choice.  Annual Review of Ecology, Evolution and Systematics 44:437-459. (Supplemental Material)

Adler, K.; Narins, P.M.; Ryan, M.J. 2013. Robert Capranica (1931-2012) and the science of anuran communication.  Herpetological Review 44:554-556.

Jones, P.L.; Ryan, M.J.; Flores, V.; Page, R.A. 2014. When to approach novel prey cues? Social learning strategies in frog-eating bats. Proceedings of the Royal Society London B. 280, dx.doi.org/10.10981/rsbp.2013.2330

Jones, P.L.; Farris, H.E.; Ryan, M.J.; Page, R.A. 2013.  Do frog-eating bats perceptually bind the complex components of frog calls?  Journal of Comparative Physiology. 199:279-283.

Kime, N.M.; Ryan, M.J.; Wilson, P.S. 2013.  A bond graph approach to modeling the anuran vocal production system. Journal of the Acoustical Society of America 133:4133-4144

Page, R.A; Ryan, M.J.; Bernal, X.E. 2013. Be loved, be prey, be eaten. pp. 123-154.In: Animal Behavior, vol 3. Case Studies: Integration and Application of Animal Behavior (ed., K. Yasukawa), New York: Praeger. 

Rog, S.; Ryan, M.J.; Mueller, U.; Lampert, K.P. 2013.  Evidence for morphological and genetic diversification of túngara frog populations on islands.  Herpetological Conservation and Biology 8:228-239.

Taylor, R.C.; Ryan, M.J. 2013. Interactions of multisensory components perceptually rescue túngara frog mating signals. Science 341:273-274. (Supplemental Material)

2012

Baugh, A.T,; Hoke, K.L.; Ryan, M.J. 2012. Development of communication behaviour: Receiver ontogeny in tungara frogs and a prospectus for a behavioural evolutionary development. The Scientific World Journal doi10.1100/2012/680132.

Dawson, B.; Ryan M.J.2012. Evoked vocal responses change with experience in male Physalaemus pustulosus. Copeia 2012:678-682.

Dawson, B.; Ryan, M.J. 2012.  Female preferences are not altered by early acoustic experience in the neotropical frog Physalaemus pustulosus. Journal of Herpetology 46:535-538. 

Duarte-Guterman, P.; Ryan, M.J.; Tudeau, V. 2012. Developmental expression of sex steroid and thyroid hormone-related genes and their regulation by triiodothyronine in the gonad-mesonephros of a Neotropical frog, Physalaemus pustulosus. General and Comparative Endocrinology 177:195-204.

Duarte-Guterman, P.; Ryan, M.J.; Hogaman, N.S.; Trudaeu, V.L. 2012. Developmental profiles and thyroid regulation of brain transcripts in frogs: A species comparison with emphasis on Physalaemus pustulosus. Brain, Behavior and Evolution 79:8812.

Willis, P.M.; Rosenthal, G.G.; Ryan, M.J. 2012. An indirect cue of predation risk counteracts female preference for conspecifics in a naturally hybridizing fish Xiphophorus birchmanni. PLoS ONE 7:e34802. doi10.100/2012/680132

 2011

Ryan, M.J. 2011.  The brain as a source of selection on the social niche: Examples from the psychophysics of mate choice in túngara frogs. Integrative and Comparative Biology pp. 1–15 doi:10.1093/icb/icr065

Ryan, M.J. 2011. Replication in field biology: The case of the frog-eating bat. Science 334:1229-1230.

Ryan, M.J. 2011. Sexual selection.  In: Grzimek's Animal Life Encyclopedia. Pp. 179-185. Van Nostrand Reinhold Co., New York.

Ryan, M.J. 2011. Sexual selection: A tutorial from the túngara frog.  In: Losos, J.B., ed.  In Light of Evolution, Essays from the Laboratory and Field. pp. 185-203. Roberts and Company, Greenwood Village CO.

Ryan, M.J.; Wilczynski, W. 2011.  An Introduction to Animal Behavior, An Integrative Approach. Cold Springs Harbor Laboratory Press, Cold Springs Harbor, New York. [to purchase]

Akre, K.L.; Farris, H.E.; Lea, A.M.; Page, R.A.; Ryan, M.J. 2011.  Signal perception in frogs and bats and the evolution of mating signals. Science 333:752-753. [Supplemental Material]

Akre, K.L.; Ryan, M.J. 2011. Female túngara frogs elicit more complex mating signals from males.  Behavioral Ecology.

Baugh, A.T.; Ryan, M.J. 2011. The relative value of call embellishment in tungara frogs. Behaiovral Ecology and Sociobiology 65:359-367.

Bonochea, L.A.; Ryan, M.J. 2011. Localization error and search costs during mate choice in túngara frogs, Physalameus pustulosusEthology 116:56-62.

Bonochea, L.A.; Ryan, M.J. 2011. Predation risk increases permissiveness for heterospecific advertisement calls in túngara frogs, Physalaemus pustulosus. Animal Behaviour  82 347e352

Dapper,  A.L.; Baugh, A.T.; Ryan, M.J. 2011.  The sounds of silence as an alarm cue in túngara frogs. Biotropica 43: 380–385.

Farris,H.E.; Ryan, M.J. 2011. Relative comparisons enable auditory grouping in frogs. Nature Communications2:410 DOI:10.1038/ncoms1470|www.nature.com/naturecommunications

O’Connell, L.A.; Matthews, B.J.; Ryan, M.J.; Hofmann, H.A. 2011.  Characterization of the dopamine system in brain of the túngara frog, Physalameus pustulosusBrain, Behavior and Evolution. DOI 10.1159/000321725

O'Connell, L.A.; Ding, J.H.; Ryan, M.J.; Hofmann, H.A. 2011. Neural distribution of the nuclear progesterone receptor in the túngara frog, Physalaemus pustulosus. Journal of Chemical Neuroanatomy. 41:137–147.

Rosenthal, G.G.; Ryan, M.J. 2011. Conflicting preferences within females: sexual selection versus species recognition. Biology Letters doi:10.1098/rsbl.2011.0027 

Smith, C.C.; Ryan, M.J. 2011. Strategy dependent plasticity in ejaculate traits.  Biology Letters

Taylor, R.C.; Klein, B.A.; Ryan, M.J. 2011. Inter-signal interaction and uncertain information in anuran multimodal signals. Current Zoology  57: 153−161.

Taylor, R.C.; Klein, B.A.; Stein, J.; Ryan, M.J. 2011. Multimodal signal variation in space and time: How important is matching a signal with its signaler?  Journal of Experimental Biology 214:815-820.

Willis, P.M.; Ryan, M.J.; Rosenthal G.G. 2011. Encounter rates with conspecific males influence  female mate choice in a naturally hybridizing fish.  Behavioral Ecology 22:1234-1240.

 2010

Ryan, M.J. 2010.  An improbable path. In: L. Drickamer, D. Dewsbury editors.  Leaders in Animal Behavior, The Second Generation. pp. 465-496. Cambridge University Press, Cambridge.

Ryan, M.J. 2010.  The family that works together stays together. [Dispatch]  Current Biology 20:R403-R404

Ryan, M.J. 2010. The túngara frog: A model for sexual selection and communication.  In: M.D.  Breed, J. Moore, eds., Encyclopedia of Animal Behavior. volume 3, pp. 453-461. Academic Press, Oxford.

Ryan, M.J.; Bernal, X.E.; Rand, A.S. 2010. Female mate choice and the potential for ornament evolution in the túngara frog Physalaemus pustulosus.  Current Zoology 56:343-357.

Akre, K.L.; Ryan, M.J. 2010. Complexity increases working memory for mating signals. Current Biology 20:502-505.

Akre, K.L.; Ryan, M.J. 2010. Proximity-dependent response to variably complex mating signals in túngara frogs (Physalaemus pustulosus).  Ethology 116:1138-1145. 

Baugh, A. T. & Ryan, M. J. 2010. Ambient light alters temporal updating behaviour during mate choice in a Neotropical frog. Canadian Journal of Zoology 88:448–453.

Baugh, A.T. & Ryan, M.J. 2010. Mate choice in response to dynamic presentation of male advertisement signals in túngara frogs.  Animal Behaviour 79:145-152.

Baugh, A.T.; Ryan, M.J. 2010. The development of sexual behavior in túngara frogs. Journal of Comparative Psychology 124:60–88.

Baugh, A. T. & Ryan, M. J. 2010. Temporal updating during phonotaxis in male túngara frogs (Physalaemus pustulosus).  Amphibia Reptilia.31:449-454

Goutee, S.; Kime, N.M.; Argo, T.F. IV; Ryan, M.J. 2010. Calling strategies of male túngara frogs in response to dynamic playback. Behaviour 147:65-83.

Hoke, K.L.; Ryan, M.J.; Wilczynski, W. 2010. Sexually dimorphic sensory gating drives behavioral differences in túngara frogs. Journal of Experimental Biology 213:3463-3472

Kime, N.M.; Whitney, T.K.; Ryan, M.J.; Rand, A.S.; Marler, C.A. 2010. Treatment with arginine vasotocin alters mating calls and decreases attractiveness in male túngara frogs. General and Comparative Endocrinology 165:221-228.

Lampert , K.P.; Schmidt, C.; Fischer, P.; Volff, J-N.; Hoffmann, C.; Muck, J.; Lohse, M.J.; Ryan, M.J.; Manfred Schartl, M. 2010. Determination of onset of sexual maturation and mating behavior by melanocortin receptor 4 polymorphisms. Current Biology 20:1729-1734.

Owren, M.J.; Rendall, D.; Ryan, M.J. 2010. Redefining animal signaling: Influence versus     information in communication. Biology and Philosophy 25:755–780

Pfennig, K.S; Ryan, M.J. 2010. Evolutionary diversification of mating behaviour: using artificial neural networks to study reproductive character displacement and speciation. pp. 187-214.  In: C. Tosh and G. Ruxton, editors, Modeling Perception with Artificial Neural Networks, Cambridge University Press, Cambridge, UK.

Pröhl, H.; Ron, S.R.; Ryan, M.J. 2010. Ecological and genetic divergence between two lineages     of Middle American túngara frogs Physalaemus (=Engystomops) pustulosus. BMC Evolutionary Biology 10:146 (18 pp)

Shah, A.A.; Ryan, M.J.; Bevilaqua; Schalaepfer, M.A. 2010.  Prior experience alters the behavioral response of prey to a nonnative predator.  Journal of Herpetology 44:185-192.

Smith, C.C.; Ryan, M.J. 2010. Evolution of sperm quality but not quantity in the internally fertilized fish Xiphophorus nigrensisJournal of Evolutionary Biology 23:1759-1771.

Wilczynski, W.; Ryan, M.J. 2010.  The behavioral neuroscience of anuran social signal processing.  Current Opinion in Neurobiology 20:754-763.

2009

Ryan, M.J. 2009. Communication in frogs and toads. In: L.R. Squire editor. Encyclopedia of Neuroscience, volume 2, pp. 1159-1166. Academic Press: Oxford.

Ryan, M.J.; Akre, K.L.; Kirkpatrick, M. 2009. Cognitive mate choice.  In: R. Dukas, J. Ratcliffe editors. Cognitive Ecology II. pp. 137-155. University of Chicago Press, Chicago. 

Baugh, A. T. & Ryan, M. J. 2009. Female túngara frogs vary in commitment to mate choice decisions. Behavioral Ecology. 20:1153-1159.

Bernal, X.E. ; Akre, K.L.; Baugh, A.T.; Rand, A.S.; Ryan, M.J. 2009. Female and male behavioral response to advertisement calls of variable complexity in túngara frogs, Physalaemus pustulosus. Behavioral Ecology and Sociobiology 63 1269-1279.

Bernal, X.; Page, R.A.; Argo, T.F. IV; Ryan, M.J.; Wilson, P.S. 2009. Acoustic radiation patterns of mating calls of the túngara frog (Physalaemus pustulosus): Implications for multiple receivers. Journal of the Acoustical Society of America 126:2757-2767.

Bernal, X.E.; Rand, A.S.; Ryan. M.J. 2009.  Task differences underlie sexual dimorphism in mating behaviour in túngara frogs, Physalaemus pustulosus. Proceedings of the Royal Society, London Series B. 276, 1323–1329.

Dawson, B.; Ryan, M.J. 2009. Early experience leads to changes in the advertisement calls of male Physalaemus pustulosus. Copeia 2009:221-226.

Funk, C.; Ryan, M.J.; Cannatella, D.C. 2009. Genetic divergence is more tightly related to call variation than landscape features in the Amazonian frogs Physalaemus petersi and P. freibergi. Journal of Evolutionary Biology 22:1839-1853.

Rendall, D.; Owren, M.J.; Ryan, M.J. 2009.  What do animal signals mean? Animal Behaviour 78:233-240.

Romero-Carvajal, A.; Saenz-Ponce, N.; Venegas-Ferrin, M.; Almedia-Reinoso, D.; Lee, C.; Bond, J.; Ryan, M.J.; Wallingford, J.B.; Delpino, E.M. 2009. Embryogenesis and laboratory maintenance of the foam-nesting túngara frogs, genus Engystomops (=Physalaemus). Developmental Dynamics 238:1444-1454.

Sosa, J.A.; Ryan, M.J.; Schlaepfer, M.A. 2009. Induced morphological variation in Lowland Leopard Frog larvae (Rana yavapainsis) does not confer a survival advantage against Green Sunfih (Lepomis cyanellus). Journal of Herpetology 43:460-468.

Summers, K.; Roney, K.; da Silva, J.; Capraro, G.; Cuthbertson, B.J.; Kazianis, S.; Rosenthal, G.G.; Ryan, M.J.; McConell, T.J. 2009.  Divergent patterns of selection on the DAB and DXB MHC class II loci in Xiphophorus fishes.  Genetica 135:379-390.

2008

Baugh, A.T.; Akre, K.L.; Ryan, M.J.  2008.  Categorical perception of a natural, multivariate signal: mating call recognition in túngara frogs. Proceedings of the National Academy of Sciences, USA 105:8985-8988.

Cummings, M.E.; Bernal, X.E.; Reynaga, R.; Rand, A.S.; Ryan, M.J. 2008. Visual sensitivity to a conspicuous male cue varies by reproductive state in Physalaemus pustulosus females.  Journal of Experimental Biology 211:1203-1210.

Engeszer, R.E.; Wang, G.; Alberici da  Barbiano, L.; Ryan, M.J.; Parichy, D.M. 2008.  Sex-specific perceptual spaces for a vertebrate basal social aggregative behavior. Proceedings of the National Academy of Sciences, USA 105:929-933.

Funk, C.W.; Angulo, A.; Caldwell, J.P.; Ryan, M.J.; Cannatella, D.C. 2008. Comparison of morphology and calls of two cryptic species of Physaleamus (Anura: Leptodactylidae). Herpetologica. 64:290-304.

Heubel, K.U.; Hornhardt, K.; Ollmann, T.; Parzefall, J.; Ryan, M.J.; Schlupp, I. 2008. Geographic variation in female mate-copying in the species complex of a unisexual fish, Poecilia formosa. Behaviour 148:1041-1064.

Hoke, K.L.; Ryan, M.J.; Wilczynski, W. 2008. Candidate neural locus for sex differences in reproductive decisions.  Biology Letters 4:518-521.

McLennan, D.A; Ryan, M.J. 2008. Female swordtails prefer the scent of heterospecific males (Xiphophorus continens: Poeciliidae). Animal Behaviour 75:1731-1737. 

Page, R.; Ryan, M.J. 2008. The effect of signal complexity on localization performance in bats that localize frog calls. Animal Behaviour 76:761-769. 

Taylor, R.C.; Klein, B.A.; Stein, J.; Ryan, M.J. 2008.  Faux frogs: Multicomponent signalling and the value of robotics in animal behaviour. Animal Behaviour 76:1089-1097.

2007

 Ryan, M.J. 2007. Sensory ecology: See me, hear me. [Dispatch]  Current Biology 17:1019-1021.

Ryan, M.J.; Akre, K.L.; Kirkpatrick. M. 2007. Mate choice [Primer]. Current Biology 17:313-316

Ryan, M.J.; Bernal, X.E.; Rand, A.S. 2007. Patterns of mating call preferences in túngara frogs, Physalaemus pustulosusJournal of Evolutionary Biology 20:2235-2247.

Bernal, X.E.; Page, R.A.; Rand, A.S.; Ryan, M.J. 2007. Cues for eavesdroppers: Do frog calls indicate prey density and quality.  The American Naturalist 169:409-415.

Bernal, X.; A.S. Rand; M.J. Ryan. 2007. Sex differences in response to non-conspecific advertisement calls: Receiver permissiveness in male and female túngara frogs.  Animal Behaviour 73:955-964.

Bernal, X.; A.S. Rand; M.J. Ryan. 2007.  Sexual differences in the behavioral response of túngara frogs, Physalaemus pustulosus, to cues associated with increased predation risk.  Ethology 113: 755-763.

Boul, K.E.; W.C. Funk; C.R. Darst; D.C. Cannatella; M.J. Ryan. 2007.  Sexual selection drives speciation in an Amazonian frog.  Proceedings of the Royal Society, London series B 274:399-406.

Engeszer, R.E.; da Barbiano, L.A.; Ryan, M.J.; Parichy, D.M. 2007. Timing and plasticity of shoaling behavior in the zebrafish, Danio rerio. Animal Behaviour 74: 1269-1275.

Hoke, K.L.; Ryan, M.J.; Wilczynski, W. 2007.  Integration of sensory and motor processing underlying social behaviour in túngara frogs.  Proceedings of the Royal Society, London B 274:641-649

Hoke, K. L.; M. J. Ryan; W. Wilczynski. 2007. Functional coupling between substantia nigra and basal ganglia homologs in amphibians.  Behavioral Neuroscience 121:393–1399

Lampert, K.P.; Bernal, X.E.; Rand, A.S.; Mueller, U.G.; Ryan, M.J. 2007. Physalaemus pustulosus: History influences genetic diversity and morphology.  Herpetologica 63:311-319.

Pfennig, K.S.; Ryan, M.J. 2007.  Character displacement and the evolution of mate choice: an artificial neural network approach.  Philosophical Transactions of the Royal Society 362:411-419.

Phelps, S.; Rand, A.S.; Ryan, M.J. 2007.  The mixed-species chorus as public information: Túngara frogs eavesdrop on a heterospecific.  Behavioral Ecology 18:108-114.

Schlaepfer, M.A.; Sredl, M.J.; Rosen, P.C.; Ryan, M.J. 2007. High prevalence of Batrachochytrium dendrobatidis in wild populations of lowland leopard frogs Rana yavapaiensis in Arizona. EcoHealth. 4:421-427.

2006

Ryan, M.J. 2006.  Question and Answer with Michael J. Ryan.  Current Biology 16(24):1012-1013.

Ryan, M.J. 2006. Profile of: A. Stanley Rand (1932-2005).  Iguana 13:42-46.

Bernal, X.; Rand, A.S.; Ryan, M.J. 2006.  Acoustic preferences and localization performance of blood-sucking flies (Corethrella Coquillett).  Behavioral Ecology 709-715

Cummings, M.E.; García de León, F.J.; Mollaghan, D.M.; Ryan, M.J. 2006.  Is UV ornamentation an amplifier in swordtails?  Zebrafish 3:91-100.

Griddi Papp, M; Rand, A.S.; Ryan, M.J. 2006.  Complex call production in túngara frogs. Nature 441:38.

Hill, S.; Ryan, M.J. 2006.  The role of female quality in the mate choice copying behaviour of sailfin mollies.  Biology Letters 2:203-205.

Kirkpatrick, M.; Rand, A.S.; Ryan, M.J. 2006.  Mate choice rules in animals.  Animal Behaviour 72:1215-1225.

Lampert, K.P.; Bernal, X.; Rand, A.S.; Mueller, U.G.; Ryan, M.J. 2006.  No evidence for female mate choice based on genetic similarity in the túngara frog, Physalaemus pustulosusBehavioral Ecology and Sociobiology 59:796-804.

Lynch, K.S.; Crews, D.C.; Ryan, M.J.; Wilczyski, W. 2006.  Hormonal state influences aspects of female mate choice in the túngara frog (Physalaemus pustulosus).  Hormones and Behavior 49:450-457.

Page, R.A.; Ryan, M.J. 2006.  Social transmission of novel foraging behavior in bats: Frog calls and their referents.  Current Biology 16:1201-1205.

Phelps, S.M.; Rand, A.S.; Ryan, M.J. 2006.  A cognitive framework for mate choice and species recognition.  The American Naturalist 167:28-42.

Pauly, G.B.; Bernal, X.E.; Rand, A.S.; Ryan, M.J. in press.  The vocal sac increases call rate in the túngara frog, Physalaemus pustulosusComparative Physiology and Biochemistry 79:708-719

Pfennig, K.S.; Ryan, M.J. 2006.  Reproductive character displacement generates reproductive isolation among conspecific populations: an artificial neural network study.  Proceedings of the Royal Society, London B 273:1361-1368.

Pröhl, H.; Koshy, R.; Mueller, U.; Rand, A.S.; Ryan, M.J. 2006.  Geographic variation and behavioral traits in túngara frogs in a zone of secondary contact.  Evolution 60:1669-1679.

2005

Ryan, M.J. 2005. Evolution of behavior. pp. 294-314. In: J.J. Bolhuis, L-A. Giraldeau, editors, The Behavior of Animals; Mechanisms, Function, and Evolution. Blackwell Pub. Co., Oxford.

Ryan, M.J. 2005. The evolution of behavior, and integrating it towards a complete and correct understanding of behavioral biology.  Journal of Animal Biology 55:419-439.

Ryan, M.J.; Cummings, M.E. 2005.  Animal signals and the overlooked costs of efficacy.  Evolution 59): 1160-1161.

Farris, H.E.; Rand, A.S.; Ryan, M.J. 2005.  The effect of time, space and spectrum on auditory grouping in túngara frogs.  Journal of Comparative Physiology 191:1173-1183.

Gabor, C.R.; Ryan, M.J.; Morizot, D.C. 2005.  Character displacement in sailfin mollies, Poecilia latipinna: allozymes and behavior.  Environmental Biology of Fishes 73:75-88.

Hoke, K.L.; Ryan, M.J.; Wilczynski, W. 2005.  Social cues shift functional connectivity in the hypothalamus.  Proceedings of the National Academy of Sciences, USA 102:10712-10717.

Lynch, K.S.; Rand, A.S.; Ryan, M.J.; Wilczynski, W. 2005.  Plasticity in female mate choice associated with changing reproductive states.  Animal Behaviour 69:689-699.

Page, R.; Ryan, M.J. 2005.  Flexibility in assessment of prey cues: frog-eating bats and frog calls.  Proceedings of the Royal Society, London B 272:841-847.

Rosenthal, G.G.; Ryan, M.J. 2005.  Assortative preferences for stripes in danios.  Animal Behaviour 70:1063-1066.

Weight, L.A.; Crawford, A.J.; Rand, A.S.; Ryan, M.J. 2005.  Biogeography of the túngara frog, Physalaemus pustulosus: a molecular perspective.  Molecular Ecology 14:3857-3876

Witte, K.; Farris, H.E.; Ryan, M.J.; Wilczynski, W. 2005. How cricket frog females deal with a  noisy world: habitat-related differences in auditory tuning.  Behavioral Ecology 16:571-579.

2004

Ryan M.J.2004.  Fickle females? [News & Views]. Nature 428:708-709.

Boul, K.E.; Ryan, M.J. 2004.  Population variation of complex advertisement calls in Physalaemus petersi and comparative laryngeal morphology.  Copeia 3:624-631.

Engeszer, R.E.; Ryan, M.J.; Parichy, D.M. 2004. Learned social preference in zebrafish. Current Biology 14:881-884.

Hoke, K.L.; Burmeister, S.S.; Fernald, R.D.; Rand, A.S.; Ryan, M.J.; Wilczynski, W. 2004.  Functional mapping of the auditory midbrain during mate call reception.  The Journal of Neuroscience 24:11264-11272.

Kime, N.M.; Burmeister, S.S.; Ryan, M.J. 2004.  Female preference for socially variable call characters in the cricket frog, Acris crepitansAnimal Behaviour 68:1391-1399.

Roney, K.E.; Cuthbertson, B.J.; Godwin, U.B.; Kazianis, S.; Coletta, L.D.; Rosenthal, G.G.; Ryan, M.J.; Schmidt, M.; McConnell, T.J. 2004.  Alternative splicing of major histocompatibility complex class II DXB transcripts in Xiphophorus fishes.  Immunogenetics 56:462-466. 

Rosenthal, G.G.; Rand, A.S.; Ryan, M.J. 2004.  The vocal sac as a visual cue in anuran communication: an experimental analysis using video playback.  Animal Behaviour 68:55-58.

2003

Ryan, M.J.; Kime, N.M. 2003. Selection on long distance acoustic signals. pp. 225-274. In: Simmons, A.; Fay, R.; Popper, A. editors, Springer Handbook of Auditory Research; Acoustic Communication. Springer Verlag, Berlin.

Ryan, M.J.; Rand, A.S. 2003.  Mate recognition in túngara frogs: a review of some studies of brain, behavior, and evolution.  Acta Zoologica Sinica 49:713-726.

Ryan, M.J.; Rand, A.S. 2003. Sexual selection and female preference space: How female túngara  frogs perceive and respond to complex population variation in acoustic mating signals. Evolution 57:2608-2618.

Ryan, M.J.; Rand, W.; Hurd, P.L.; Phelps, S.M.; Rand. A.S. 2003. Generalization in response to mate recognition signals. The American Naturalist 161:380-394.

Castellano, S.; Giacoma, C.; Ryan, M.J. 2003. Call degradation in diploid and tetraploid green toads. Biological Journal of the Linnean Society 78:11-26.

Cummings, M.E.; Rosenthal, G.G.; Ryan, M.J. 2003. A private ultraviolet channel in visual communication. Proceedings of the Royal Society, London B 270: 897-904.

Kingston, J.; Rosenthal, G.G.; Ryan, M.J. 2003. The role of sexual selection in maintaining a colour polymorphism in the pygmy swordtail, Xiphophorus pygmaeus. Animal Behaviour 65:735-743.

Lampert, K.P.; Rand, A.S.; Mueller, U.G.; Ryan, M.J. 2003. Fine scale genetic pattern and evidence for sex-biased dispersal in the túngara  frog, Physalaemus pustulosus. Molecular Ecology 12:3325-3334.

Rosenthal, G.G. et al. 2003. Dissolution of sexual signal complexes in a hybrid zone between the swordtails Xiphophorus birchmanni and X. malinche (Poeciliidae). Copeia 2003:299-307.

2002

.Autumn, K.; Ryan, M.J.; Wake, D.B. 2002. Integrating historical and mechanistic biology enhances the study of adaptation. Quarterly Review of Biology 77:383-408.

Bosch, J.; Rand, A.S.; Ryan, M.J. 2002. Response to variation in chuck frequency by male and female túngara frogs. Herpetologica 58:95-103.

Burmeister, S.S.; Ophir, A.G.; Ryan, M.J.; Wilczynski, W. 2002. Information transfer during cricket frog contests. Animal Behaviour 64:715-725.

Farris, H.F.; Rand,. A.S.; Ryan. M.J. 2002. The effects of spatially separated call components on phonotaxis in túngara frogs: Evidence for auditory grouping. Brain, Behavior and Evolution 60:181-188

Pröhl, H.; Adams, R.; U. Mueller; Rand, A.S.; Ryan, M.J. 2002. Polymerase chain reaction primers for polymorphic microsatellite loci from the túngara frog Physalaemus pustulosus. Molecular Ecology Notes 2:341-343.

Rosenthal, G.G.; Wagner, W.E. Jr.; Ryan, M.J. 2002. Secondary reduction of preference for swords in the pygmy swordtail Xiphophorus nigrensis (Pisces: Poeciliidae). Animal Behaviour 63:37-45.

Tárano, Z.; Ryan, M.J. 2002. No preexisting biases for heterospecific calls traits in the frog Physalaemus enesefae. Animal Behaviour 64:599-607.

Witte, K.; Ryan, M.J. 2002. Mate-choice copying in the sailfin molly (Poecilia latipinna) in the wild. Animal Behaviour 63:943-949.

2001

Ryan, M.J. (editor). 2001. Anuran Communication. Smithsonian Institution Press, Washington D.C. [to purchae]

Ryan, M.J. 2001. Food, song and speciation. [News and Views]. Nature 409:139-140.

Ryan, M.J. 2001. Seeing red in speciation. [News & Views]. Nature 411:900-901.

Ryan, M.J.; Phelps S.M.; Rand A.S. 2001. How evolutionary history shapes recognition mechanisms. Trends in Cognitive Science 5:143-148.

Ryan, M.J.; Rand. A.S. 2001. Feature weighting in signal recognition and discrimination by the túngara frog. Pp. 86-101. In: Ryan, M.J. editor, Anuran Communication. Smithsonian Institution Press, Washington D.C.

Ryan, M.J.; Rosenthal, G.G. 2001. Variation and selection in swordtails. pp. 133-148. In: Dugatkin, L.A. editor, Model Systems in Behavioral Ecology. Princeton University Press, Princeton, New Jersey.

Dries L.A.; Morris M.R.; Ryan, M.J. 2001. Why are some male pygmy swordtails large? Copeia 2001: 355-364.

Gabor, C.R.; Ryan, M.J. 2001. Geographic variation in reproductive character displacement in mate choice by male sailfin mollies. Proceedings of the Royal Society, London B 268:1063-1071.

Phelps, S.M.; Rand, A.S.; Ryan, M.J. 2001. Vestigal preference functions in neural networks and túngara frogs. Proceedings of the National Academy of Sciences USA 98:13161-13166.

Rosenthal , G.G.; Flores Martinez, T.Y.; García de León, F.J.; Ryan, M.J. 2001. Shared preferences by predators and females for males ornaments in swordtails. The American Naturalist 158:146-154.

Schlupp, I.; McNab, R.; Ryan, M.J. 2001. Sexual harassment as a cost for molly females: bigger males cost less. Behaviour:138:277-286.

Wilczynski, W.; Rand A.S.; Ryan, M.J 2001. Evolution of calls and auditory tuning in the Physalaemus pustulosus species group. Brain, Behavior and Evolution 58:137-151.

Witte, K.; Ryan, M.J.; Wilczynski, W. 2001. Changes in the frequency structure of a mating call decreases its attractiveness to females in the cricket frog Acris creptians blanchardi. Ethology 107:685-699.

2000

Ryan, M.J.; Getz, W. 2000. Signal decoding and receiver evolution: An analysis using an artificial neural network. Brain, Behavior and Evolution 56:45-62.

Bosch, J.; Rand, A.S.; Ryan, M.J. 2000. Acoustic competition in Physalaemus pustulosus, a differential response to calls of relative frequency. Ethology 106:865-871.

Bosch, J.; Rand , A.S. Ryan, M.J. 2000. Signal variation and call preferences for whine frequency in the túngara frog, Physalaemus pustulosus. Behavioral Ecology and Sociobiology 49:62-66.

Kime N.M.; Turner W.R; Ryan M.J. 2000. The transmission of advertisement calls in Central American frogs. Behavioral Ecology 11:71-83.

Marsh, D.M.; Rand, A.S.; Ryan M.J. 2000. Effects of inter-pond distance on breeding ecology of túngara frogs. Oecologia 122:505-513.

Phelps, S.M.; Ryan, M.J. 2000. History influences signal recognition: Neural network models of túngara frogs. Proceedings of the Royal Society, London B 267:1633-1639.

Rosenthal, G.G.; Ryan, M.J. 2000. Visual and acoustic communication in nonhuman animals: a comparison. Journal of Bioscience 25:285-290.

Sun, L.; Wilczynski, W.; Rand, A.S; Ryan, M.J. 2000. Trade-off in short and long distance communication in túngara (Physalaemus pustulosus) and cricket (Acris crepitans) frogs. Behavioral Ecology 11:102-109.

Witte, K.; Chen, K-C.; Wilczynski, W.; Ryan, M.J. 2000. Influence of amplexus on phonotaxis in the cricket frog Acris crepitans blanchardi. Copeia 2000:257-261.

1999

Ryan, M.J. 1999. Phylogeny and mate choice. Mus. Reg. Sci. nat. Torino 1999:387-392.

Ryan, M.J. 1999. Sexual selection and sensory exploitation [Response]. Science 283:1083a

Ryan, M.J. 1999. Electrifying diversity [News & Views]. Nature 400:211-212.

Ryan, M.J.; Rand. A.S. 1999. Phylogenetic inference and the evolution of communication in túngara frogs. pp. 535-557. In: Hauser, M.; Konishi, M. editors, The Design of Animal Communication. MIT Press, Cambridge, MA.

Ryan, M.J.; Rand. A.S. 1999. Phylogenetic influences on mating call preferences in female túngara frogs (Physalaemus pustulosus). Animal Behaviour 57:945-956.

Burmeister, S.; Wilczynski, W.; Ryan, M.J. 1999. Temporal call changes and social context affect graded signaling in cricket frogs. Animal Behaviour 57:611-618 .

McLennan, D.A.; Ryan, M.J. 1999. Interspecific recognition and discrimination based upon olfactory cues in swordtails. Evolution 53:880-888.

Schlupp, I.; Waschulewski, M.; Ryan, M.J. 1999. Female preferences for naturally-occurring novel male traits. Behaviour 136; 519-527.

Wilczynski, W.; Rand, A.S.; Ryan, M.J. 1999. Female preferences for temporal order of call components in the túngara frog: A Bayesian analysis. Animal Behaviour 58:841-851.

Wilczynski, W.; Ryan, M.J. 1999. Geographic variation in animal communication systems. In: Foster, S.A.; Endler, J., editors, Geographic Diversification of Behavior: An Evolutionary Perspective, pp . 234-261. Oxford University Press, Oxford.

1998

Ryan, M.J. 1998. Receiver biases, sexual selection and the evolution of sex differences. Science. 281:1999-2003.

Ryan, M.J. 1998. A model fish (review of Sex, Color and Mate Choice in Guppies). Trends in Ecology and Evolution 13:294.

Ryan, M.J. 1998. Principle with a handicap (review of The Handicap Principle). Quarterly Review of Biology 73477-479.

Ryan, M.J.; Autumn, K,; Wake, D.B. 1998. Integrative biology and sexual selection. Integrative Biology 1:68-72.

Ryan, M.J.; Kime, N.M.; Rosenthal, G.G. 1998. Patterns of evolution in human speech processing and animal communication. Behavioral and Brain Science 21:282-283.

Ryan, M.J.; Rand. A.S. 1998. Evoked vocal response in male túngara frogs: Preexisting biases in male responses? Animal Behaviour 56:1509-1516.

Cannatella, D.C.; Hillis, D.M.; Chippinendale, P.; Weigt, L.; Rand, A.S.; Ryan M.J. 1998. Phylogeny of frogs of the Physalaemus pustulosus species group, with an examination of data incongruence. Systematic Biology 47:311-335.

Kime, N.M., Rand, A.S., Kapfer, M., Ryan, M.J. 1998. Consistency of female choice in the túngara frog: A permissive preference for complex characters. Animal Behaviour 55:641-649.

McClelland, B.E.; Wilczynski, W.; Ryan, M.J. 1998. Intraspecific variation in laryngeal and ear morphology in male cricket frogs (Acris crepitans). Biological Journal of the Linnean Society 63:51-67.

Phelps, S.M.; Ryan, M.J. 1998. Neural networks predict response biases in female túngara frogs. Proceeding of the Royal Society, London B 265:279-285.

Witte, K.; Ryan, M.J. 1998. Male body size influences mate-choice copying in the sailfin molly Poecilia latipinna. Behavioral Ecology 9:534-539.

1997

Ryan, M.J. 1997. Sexual selection and mate choice. pp. 179-202. In: J.R. Krebs, N.B. Davies, editors, Behavioural Ecology, An Evolutionary Approach. fourth edition. Blackwell, Oxford.

Ryan, M.J. 1997. Animal communication and evolution (review of Evolution and Communication). Evolution 51:1333-1337.

Marler, C.A.; Foran, C. Ryan, M.J. 1997. The influence of experience on mating preferences of the gynogenetic Amazon molly. Animal Behaviour 53:1035-1041.

Marler, C.A.; Ryan, M.J. 1997. Origin and maintenance of a female mating preference. Evolution 51:1244-1248.

McLennan, D.A.; Ryan, M.J. 1997. Responses to conspecific and heterospecific olfactory cues in the swordtail Xiphophorus cortezi. Animal Behaviour 54:1077-1088.

Rand, A.S.; Bridarolli, M.E.; Dries, L.; Ryan, M.J. 1997. Light levels influence female choice in túngara frogs: predation risk assessment? Copeia 1997:447-450.

Schlupp, I.; Ryan, M.J. 1997. Male mollies (Poecilia latipinna) copy the mate choice of other males. Behavioral Ecology 8:104-107.

1996

Ryan, M.J. 1996. Phylogenetics and behavior: some cautions and expectations. pp. 1-21. In: Martins, E. editor, Phylogenies and the Comparative Method in Animal Behavior. Oxford University Press, Oxford.

Ryan, M.J. 1996. Speciation and the recognition concept, theory and application (review of). Quarterly Review of Biology 71:274-275.

Ryan, M.J. 1996. A natural history of amphibians (review of). Animal Behaviour 52:1058.

Ryan, M.J.; Dries, L.A.; Batra, P.; Hillis, D.M. 1996. Male mate preference in a gynogenetic species complex of Amazon mollies. Animal Behaviour 52:1225-1236.

Ryan, M.J.; Rand, A.S.; Weigt, L.A. 1996. Allozyme and advertisement call variation in the túngara frog, Physalaemus pustulosus. Evolution 50:2435-2453.

Marler, C.A.; Ryan, M.J. 1996. Energetic constraints and steroid hormone correlates of male calling behaviour in the túngara frog. Journal of Zoology 240:397-409.

McClelland, B.E.; Wilczynzksi, W.; Ryan, M.J. 1996. Correlations between call characteristics and morphology in male cricket frogs (Acris crepitans). Journal of Experimental Biology 199:1907-1919.

Morris, M.R.; Wagner, W.E. Jr.; Ryan, M.J. 1996. A negative correlation between trait and and mate preference in Xiphophorus pygmaeus. Animal Behaviour 52:1193-1203.

Morris, M.R.; Ryan, M.J. 1996. Sexual difference in signal-receiver coevolution. Animal Behaviour 52:1017-1024.

Schlupp, I.; Ryan, M.J. 1996. Mixed-species shoals and the maintenance of a sexual-asexual mating system in mollies. Animal Behaviour 52:885-890.

1995

Ryan, M.J. 1995. Offsetting advantages (review of Sexual Selection). Science 267:712-713.

Ryan, M.J.; Rand, A.S. 1995. Female responses to ancestral advertisement calls in the túngara frog. Science 269, 390-392.

Morris, M.R.; Gass, L.; Ryan, M.J. 1995. Assessment and individual recognition of opponents in the pygmy swordtails Xiphophorus nigrensis and X. multilineatus. Behavioral Ecology 6:274-279.

Ryan. M.J.; Warkentin, K.M.; McClelland, B.E.; Wilczynski, W. 1995. Fluctuating asymmetries and advertisement call variation in the cricket frog, Acris crepitans. Behavioral Ecology 6:124-131.

Baer, C.F.; Dantzker, M.; Ryan, M.J. 1995. A test for preferece of association in a  color polymorphic poeciliid fish: laboratory study. Environmental Biology of Fishes 43:207-212.

Cocroft, R.C.; Ryan, M.J. 1995. Patterns of mating call evolution in toads and chorus frogs. Animal Behaviour 49:283-303.

Morris, M.R.; Gass, L.; Ryan, M.J. 1995. Assessment and individual recognition of opponents in the pygmy swordtails Xiphophorus nigrensis and X. multilineatus. Behavioral Ecology 6:274-279.

Morris, M.R.; Mussel, M.; Ryan, M.J. 1995. Vertical bars on male Xiphophorus multilineatus: a signal that deters rival males and attracts females. Behavioral Ecology 6:274-279.

Morris, M.R.; Ryan, M.J. 1995. Large body size in the pygmy swordtail Xiphophorus pygmaeus. Biological Journal of the Linnean Society 54:383-395.

Sullivan, B.K.; Ryan, M.J.; Verrill, P. 1995. Sexual selection and mating systems in amphibians. pp. 469-517. In: Sullivan, B.K.; Heatwole, H., editors, Social Behavior of Amphibians, Surrey Beatty & Sons, New York.

Wilczynski, W.; Rand, A.S.; Ryan, M.J. 1995. The processing of spectral cues by the call analysis system of the túngara frog, Physalaemus pustulosus. Animal Behaviour 49:911-929.

1994

Ryan, M.J. 1994. Mechanistic studies in sexual selection. pp. 190-215. In: Real, L., editor, Behavioral Mechanisms in Evolutionary Ecology. University of Chicago Press, Chicago.

Foran, M.C.; Ryan, M.J. 1994. Female-female competition in a unisexual/bisexual complex of mollies. Copeia 1994:504-508.

Schlupp, I.; Marler, C.A.; Ryan, M.J. 1994. Benefit to male sail fin mollies of mating with heterospecific females. Science 263:373-374.

1993

Ryan, M.J. 1993. Sexual selection on P-alleles and the evolution of mating asymmetries in swordtails (Xiphophorus nigrensis and X. pygmaeus). pp. 269-277. In: J.H. Schröder, J. Bauer, M. Schartl, editors, Trends in Ichthyology, An International Perspective. Blackwell Scientific Publications, Oxford.

Ryan, M.J.; Rand, A.S. 1993. Phylogenetic patterns of behavioral mate recognition systems in the Physalaemus pustulosus species group (Anura: Leptodactylidae): the role of ancestral and derived characters and sensory exploitation. pp. 251-267. In: D.R. Lees, D. Edwards, editors, Evolutionary Patterns and Processes. Linnean Society Symposium Series, No. 14, Academic Press, London.

Ryan, M.J.; Rand, A.S. 1993. Species recognition and sexual selection as a unitary problem in animal communication. Evolution 47:647-657.

Ryan, M.J.; Rand. A.S. 1993. Sexual selection and signal evolution: the ghost of biases past. Philosophical Transactions of the Royal Society B. 340:187-195.

1992

Ryan, M.J. 1992. Sexy males and sterile females (review of The Peacock and the Ant). Cell 71:367-368.

Ryan, M.J. 1992. Costs of reproduction. In: Feder, M., editor, Physiology of the Amphibians. pp. 426-434. University of Chicago, Chicago.

Ryan, M.J.; Keddy-Hector, A. 1992. Directional patterns of female mate choice and the role of sensory biases. American Naturalist 139:S4-S35.

Ryan, M.J.; Pease, C.M.; Morris, M.R. 1992. A genetic polymorphism in the swordtail Xiphophorus nigrensis: testing the prediction of equal fitnesses. American Naturalist 139:21-31.

Ryan, M.J.; Perrill, S.A.; Wilczynski, W. 1992. Auditory tuning and call frequency predict population-based mating preferences in the cricket frog, Acris crepitans. American Naturalist 139:1370-1383.

Morris, M.J.; Batra, P.; Ryan, M.J. 1992. Male-male competition and access to females. Copeia 1992:980-986.

Morris, M.R.; Ryan, M.J. 1992. Breeding cycles in natural populations of Xiphophorus nigrensis, X. multilineatus and X. pygmaeus. Copeia 1992:1074-1077.

Keddy-Hector, A.; Wilczynski, W.; Ryan, M.J. 1992. Call patterns and basilar papilla tuning in cricket frogs. II. Intrapopulational variation and allometry. Brain, Behavior and Evolution 39:238-246.

Rand, A.S.; Ryan, M.J.; Wilczynski, W. 1992. Signal redundancy and receiver permissiveness in acoustic mate recognition by the túngara frog, Physalaemus pustulosus. American Zoologist 32:81-90.

Wilczynski, W.; Ryan, M.J. 1992. Introduction to the symposium: Mechanisms of mate choice. American Zoologist 32:15-17.

Wilczynski, W.; Keddy-Hector, A.; Ryan, M.J. 1992. Call patterns and basilar papilla tuning in cricket frogs. I. Differences among populations and between sexes. Brain, Behavior and Evolution 39:229-237.


1991

Ryan, M.J. 1991. Sexual selection and communication in frogs: some recent advances. Trends in Ecology and Evolution 6:351-354.

Ryan, M.J.; Wilczynski, W. 1991. Evolution of intraspecific variation in the advertisement call of a cricket frog (Acris crepitans, Hylidae). Biological Journal of the Linnean Society 44: 249-271.

Kirkpatrick, M.; Ryan, M.J. 1991. The paradox of the lek and the evolution of mating preferences. Nature 350:33-38.

1990

Ryan, M.J. 1990. Sensory systems, sexual selection, and sensory exploitation. Oxford Surveys in Evolutionary Biology 7:157-195.

Ryan, M.J. 1990. Signals, species, and sexual selection. American Scientist 78:46-52.

Ryan, M.J.; Cocroft, R.B.; Wilczynski, W. 1990. The role of environmental selection in intraspecific divergence of mate recognition signals in the cricket frog, Acris crepitans. Evolution 44:1869-1872.

Ryan, M.J.; Drewes, R.C. 1990. Vocal morphology of the Physalaemus pustulosus species group (Family Leptodactylidae): morphological response to sexual selection for complex calls. Biological Journal of the Linnean Society 40:37-52.

Ryan, M.J.; Fox, J.H.; Wilczynski, W.; Rand, A.S. 1990. Sexual selection for sensory exploitation in the frog Physalaemus pustulosus. Nature 343:66-67.

Ryan, M.J.; Hews, D.K.; Wagner, W.E. Jr. 1990. Sexual selection on alleles that determine body size in the swordtail Xiphophorus nigrensis. Behavioral Ecology and Sociobiology 26:231-237.

Ryan, M.J.; Rand, A.S. 1990. The sensory basis of sexual selection for complex calls in the túngara frog, Physalaemus pustulosus (sexual selection for sensory exploitation). Evolution 44:305-314.

Crapon de Caprona, M.; Ryan, M.J. 1990. Conspecific mate recognition in swordtails, Xiphophorus nigrensis and X. pygmaeus (Poeciliidae): olfactory and visual cues. Animal Behaviour 39:290-296.

Morris, M.R.; Ryan, M.J. 1990. Age at sexual maturity of Xiphophorus nigrensis in nature. Copeia 1990:745-751.

1989

Ryan, M.J.; Causey, B.J. 1989. Alternative mating behavior in the swordtails Xiphophorus nigrensis and Xiphophorus pygmaeus (Pisces: Poeciliidae). Behavioral Ecology and Sociobiology 24:341-348.

Ryan, M.J.; Sullivan, B.K. 1989. Transmission effects on patterns of amplitude modulation in the advertisement calls of two toads, Bufo woodhousii and Bufo valliceps. Ethology 80:182-189.

Bruns, V.; Burda, H.; Ryan, M.J. 1989. Ear morphology of the frog-eating bat (Trachops cirrhosus, Family Phylostomidae): Apparent specializations for low-frequency hearing. Journal of Morphology 199:103-118.

Wilczynski, W.; Ryan, M.J.; Brenowitz, E.A. 1989. The display of the blue-black grassquit: the acoustic advantage of getting high. Ethology 80:218-222.

1988

Ryan, M.J. 1988. Constraints and patterns in the evolution of anuran acoustic communication. In: B. Fritzsch, M. Ryan, W. Wilczynski, W. Walkowiak, T. Hetherington, editors, The Evolution of the Amphibian Auditory System. pp.637-677. John Wiley and Sons Inc., New York.

Ryan, M.J. 1988. Energy, calling, and selection. American Zoologist 28:885-898.

Ryan, M.J. 1988. Phenotype, genotype, swimming endurance and sexual selection in a swordtail (Xiphophorus nigrensis). Copeia 1988: 484-487.

Ryan, M.J.; Wilczynski, W. 1988. Coevolution of sender and receiver: effect on local mate preference in cricket frogs. Science 240:1786-1788.

Nyman, S.; Ryan, M.J.; Anderson, J.D. 1988. The distribution of the Ambystoma jeffersonianum complex in New Jersey, and a re-evaluation of some hypotheses on the origin and distribution of the complex. Journal of Herpetology 22:224-228.

Fritzsch, B.; Ryan, M.; Wilczynski, W.; Hetherington, T.; Walkowiak, W. (editors) 1988. The Evolution of the Amphibian Auditory System. John Wiley and Sons, New York [to purchase]

Wilczynski, W.; Ryan, M.J. 1988. The amphibian auditory system as a model for neurobiology, behavior and evolution. In: B. Fritzsch, M. Ryan, W. Wilczynski, W. Walkowiak, T. Hetherington, editors, The Evolution of the Amphibian Auditory System. pp. 3-12. John Wiley and Sons Inc., New York.

1987

Ryan, M.J.; Tuttle, M.D. 1987. The role of prey generated sounds, vision, and echolocation in prey localization by the African bat Cardioderma cor (Megadermatidae). Journal of Comparative Physiology 161:59-66.

Ryan, M.J.; Wagner, W. 1987. Asymmetries in mating preferences between species: female swordtails prefer heterospecific mates. Science 236:595-597.

1986

Ryan, M.J. 1986. Amphibians (review of Biology of Amphibians). Science 232:271.

Ryan, M.J. 1986. Environmental bioacoustics: evaluation of a commonly used experimental technique. Animal Behaviour 34:931-933.

Ryan, M.J. 1986. Factors influencing the evolution of acoustic communication: biological constraints. Brain, Behavior and Evolution 28:70-82.

Ryan, M.J. 1986. Neuroanatomy influences speciation rates among anurans. Proceedings of the National Academy of Sciences USA 83:1379-1382.

Ryan, M.J. 1986. The Panamanian love call. Natural History 95:36-43.

Ryan, M.J. 1986. Synchronized calling in a treefrog (Smilisca sila): short behavioral latencies and implications for neural pathways involved in call perception and detection. Brain, Behavior and Evolution 29:196-206.

1985

Ryan, M.J. 1985. The Túngara Frog, A Study in Sexual Selection and Communication. University of Chicago Press, Chicago. 230 pp. [to purchase]

Ryan, M.J. 1985. Energetic efficiency of vocalization by the frog Physalaemus pustulosus. Journal of Experimental Biology 116:47-52.

Ryan, M.J.; Brenowitz, E.A. 1985. The role of body size, phylogeny, and ambient noise in the evolution of bird song. American Naturalist 126:87-100

Mendonca, M.; Licht, P.; Ryan, M.J.; Barnes, R. 1985. Changes in hormonal level in relation to breeding behavior in male bullfrogs (Rana catesbeiana) at the individual and population levels. General and Comparative Endocrinology 58:270-279.

Tuttle, M.D.; Ryan, M.J,; Bellwood, J. 1985. Acoustical resource partitioning by two phyllostomid bats. Animal Behaviour 33:1369-1371.

1983

Ryan, M.J. 1983. Frequency modulated calls and species recognition in a Neotropical frog. Journal of Comparative Physiology 150:217-221.

Ryan, M.J. 1983. Sexual selection and communication in a Neotropical frog, Physalaemus pustulosus. Evolution 39:261-272.

Ryan, M.J.; Bartholomew, G.W.; Rand, A.S. 1983. Reproductive energetics of a Neotropical frog, Physalaemus pustulosus. Ecology 64:1456-1462.

Ryan, M.J.; Tuttle, M.D. 1983. The ability of the frog eating bat to distinguish among palatable and potentially poisonous prey using acoustic cues. Animal Behaviour 31:827-833

Ryan, M.J.; Tuttle, M.D.; Barclay, R.M.R. 1983. Behavioral responses of the frog-eating bat, Trachops cirrhosus, to sonic frequencies. Journal of Comparative Physiology 150:413-418.

Rand, A.S.; Ryan, M.J.; Troyer, K. 1983. A population explosion in a tropical frog: Hyla rufitela. Biotropica 15:72-73.

Waldman, B.; Ryan, M.J. 1983. Thermal advantages of communal egg deposition in Rana sylvatica. Journal of Herpetology 17:70-72.

1982

Ryan, M.J. 1982. Variation in iguanine social organization: mating systems in chuckwallas (Sauromalus). In: G. Burghardt, A.S. Rand, editors, Iguanas of the World: Their Behavior, Ecology and Conservation. pp. 380-390. Noyes Press, Park Ridge, New Jersey.

Ryan, M.J.; Tuttle, M.D.; Rand, A.S. 1982. Sexual advertisement and bat predation in a Neotropical frog. The American Naturalist 119:136-139.

Bucher, T.L.; Ryan, M.J.; Bartholomew, G.W. 1982. Oxygen consumption during resting, calling and nest building in the frog Physalaemus pustulosus. Physiological Zoology 55:10-22.

Tuttle, M.D.; Ryan, M.J. 1982. The roles of synchronized calling, ambient noise, and ambient light in the anti-bat-predator behavior of a treefrog. Behavioral Ecology and Sociobiology 11:125-131.

Tuttle, M.D.; Taft, L.K.; Ryan, M.J. 1982. Acoustical location of calling frogs by philander opossums. Biotropica 13:233-234.

Tuttle, M.D.; Taft, L.K.; Ryan, M.J. 1982. Evasive behaviour of a frog in response to bat predation. Animal Behaviour 30:393-397.

1981

Ryan, M.J.; Tuttle, M.D.; Taft, L.K. 1981. The costs and benefits of frog chorusing behavior. Behavioral Ecology and Sociobiology 8:273-278.

Barclay, R. M. R.; Fenton, B.; Tuttle, M. D.; Ryan, M. J. 1981. Echolocation calls produced by Trachops cirrhosus (Chiroptera: Phyllostomatidae) while hunting for frogs. Canadian Journal of Zoology 59:750-753

Rand, A.S.; Ryan, M.J. 1981. The adaptive significance of a complex vocal repertoire in a Neotropical frog. Zeitschrift fur Tierpsychologie 57:209-214.

Tuttle, M. D.; Ryan, M.J. 1981. Bat predation and the evolution of frog vocalizations in the Neotropics. Science 214:677-678.

1980

Ryan, M.J. 1980. Female mate choice in a Neotropical frog. Science 209:523-525.

Ryan, M.J. 1980. The reproductive behavior of the bullfrog, Rana catesbeiana. Copeia 1980:108-114.

1978

Ryan, M.J. 1978. A thermal property of the Rana catesbeiana (Amphibia, Anura, Ranidae) egg mass. Journal of Herpetology 12:295-297.

Ryan, M.J. 1978. Mirror image versus conspecific stimulation in adult male zebra finches. Wilson Bulletin 90:295-297.

Ryan, M.J. 1978. Parental care in salamanders. Bulletin of the New York Herpetological Society 13:23-27.

Anderson, J.D.; Hawthorne, K.; Galandak, J.; Ryan, M. 1978. A report on the endangered reptiles and amphibians of New Jersey. Bulletin of the New Jersey Academy of Science 23:26-33.

Prieto, A.A; Ryan, M.J. 1978. Some observations of the social behavior of the Arizona chuckwalla, Sauromalus obesus tumidus (Reptilia, Lacertilia, Iguanidae). Journal of Herpetology 12:327-336.
 

 

2021animbehav179_65.pdf956 KB
2021janimecol90_1455.pdf1011 KB
2021_be_aphids.pdf6.09 MB
2021icb.pdf445 KB
2021jeb_24_logan.pdf2.24 MB
2021in_desilva.pdf1.39 MB
2022science.pdf1.44 MB
2022bbe.pdf336 KB
2022behavecol_derik.pdf1.71 MB
2022biolett.pdf563 KB
2022curbiol_may_et_al.pdf303 KB
2022metode.pdf780 KB