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The Ryan Lab Reader: suggested readings and research for members of the Ryan lab

Research Papers:

in press

Ryan, M.J. in press. Sexual selection. Grzimek's Animal Life Encyclopedia

Ryan, M.J. in press. The túngara frog: A model for sexual selection and communication.  In: Encyclopedia of Animal Behavior. Elsevier: Oxford. 

Ryan, M.J., Akre, K.L.; Kirkpatrick, M. in press. Cognitive mate choice.  In: R. Dukas, J. Ratcliffe editors. Cognitive Ecology, The Evolutionary Ecology of Learning, Memory and Information Use. University of Chicago Press, Chicago.   

Ryan, M.J. in press. Diverse views of communication (review of The Sociobiology of Communication). Trends in Ecology and Evolution.

Bernal, X.; Rand, A.S.; Ryan. M.J. in press.  Task differences underlie sexual dimorphism in mating behaviour in túngara frogs, Physalaemus pustulosus. Proceedings of the Royal Society, London series B.

Dawson, B.; Ryan, M.J. in press. Early experience leads to changes in the advertisement calls of male Physalaemus pustulosus. Copeia 

Schlaepfer, M.A.; Sredl, M.J.; Rosen, P.C.; Ryan, M.J. in press. High prevalence of Batrachochytrium dendrobatidis in wild populations of lowland leopard frogs Rana yavapaiensis in Arizona. EcoHealth.  

Sosa, J.A.; Ryan, M.J.; Schlaepfer, M.A. in press. Induced morphological plasticity in Lowland Leopard Frog larvae (Rana yavapaiensis) does not confer a survival adIvantage against Green Sunfish (Lepomis cyanellus). Journal of Herpetology 

Summers, K.; Roney, K.; da Sila, J.; Geralrd, C.; Cuthbertson, B.J.; Kazianis, S.; Rosenthal, G.G.; Ryan, M.J.; McConell, T.J.   in press.  Divergent patterns of selection on the DAB and DXB MHC class II loci in Xiphophorus fishes.  Genetica. 

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.

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

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

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(3):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 series 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 121:3931399

 Lampert, K.P.; Bernal, X.E.; Rand, A.S.; Mueller, U.G.; Ryan, M.J. 2007.  Island populations of the tungara frog , 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.

2006

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.

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

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 pustulosus.  Behavioral 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.

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.

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 pustulosus.  Comparative Physiology and Biochemistry 79:708-719

Ryan, M.J. 2006.  Profile of: A. Stanley Rand (1932-2005).  Iguana 13(1):42-46.

Phennig, 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 series B 273:1361-1368.

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

2005

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

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.

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.

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.

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.

Ryan, M.J.; Cummings, M.E. 2005.  Animal signals and the overlooked costs of efficacy.  Evolution 59(5): 1160-1161.

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.

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.

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

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

2004

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.     

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. 

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

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

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.

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

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

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 n 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.

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.

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 series 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.

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

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.

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.

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

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.

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 series B 268:1063-1071.

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 series B 267:1633-1639.

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.

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

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.; 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. Repeatability 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 series 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.

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

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. Schooling behavior in a color polymorphic poeciliid fish: laboratory observations. 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.; 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 series B. 340:187-195.

1992

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.

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.

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.

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.

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. 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 83:1379-1382.

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

1985

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.

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 on the social behavior of the Arizona chuckwalla, Sauromalus obesus tumidus (Reptilia, Lacertilia, Iguanidae). Journal of Herpetology 12:327-336.



Books:

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

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.

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



Book Reviews:

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

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

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

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

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.
 

 

 

  Section of Integrative Biology-UTAustin-School of Biological Sciences-mryan@mail.utexas.edu-(512)475-6164