Abstract
Frogs are immediately associated to their conspicuous vocalizations emitted during the breeding season. Therefore, many scientists were inspired to study their acoustic communication. Nowadays, many types of calls are described and we felt the need of reviewing the terminology currently and historically applied. As a result, we proposed the classification of anuran vocalization into three major categories: reproductive, aggressive, and defensive calls. These categories are subdivided according to the social context of emission mostly reflecting also acoustic differences among call types. Some call types are here proposed to be synonymies of the mostly used and inclusive terms. We also suggest terminologies for basic bioacoustical analyses, mostly applied in call descriptions. Furthermore, we present cases of complex calls, including call gradation. Finally, based on novel data (such as an unusual case of juvenile vocalizations), we discuss situations in which it is difficult to classify call types, reflecting the need of experimental studies.
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References
Adler K, Narins PN, Ryan MJ (2013) Robert R. Capranica (1931–2012) and the science of anuran communication. Herpetol Rev 44(4):554–556
Allan DM (1973) Some relationship of vocalization to behavior in the Pacific treefrog, Hyla regilla. Herpetology 29:366–371
Arch VS, Grafe TU, Narins PM (2008) Ultrasonic signaling by a Bornean frog. Biol Lett 23:19–22
Aronson LR (1944) The sexual behavior of Anura. 6. The mating pattern of Bufo americanus, Bufo fowleri, and Bufo terrestris. Am Mus Novit 1250:1–15
Barrio A (1963) Consideraciones sobre comportamiento y “grito agresivo” propio de algunas especies de Ceratophrynidae (Anura). Physis 24:143–148
Bastos RP, Alcantara MB, Morais AR, Lingnau R, Signorelli L (2011) Vocal behaviour and conspecific call response in Scinax centralis. Herpetol J 21:43–50
Bee MA, Gerhardt HC (2001) Neighbour–stranger discrimination by territorial male bullfrogs (Rana catesbeiana). I. Acoustic basis. Ann Behav 62:1129–1140
Bell BD (1978) Observations on the ecology and reproduction of the New Zealand native frogs. Herpetology 34:340–354
Benedix JH Jr, Narins PM (1999) Competitive calling behavior by male treefrogs, Eleutherodactylus coqui (Anura: Leptodactylidae). Copeia 4:1118–1122
Blackstock DT (2000) Fundamentals of physical acoustics. John Willey & Sons Inc., New York
Blair WF (1958) Mating call in the speciation of anuran amphibians. Am Nat 92:27–51
Blumstein DT (1999) Alarm calling in three species of marmots. Behaviour 136:731–757
Blumstein DT, Verneyre L, Daniel JC (2004) Reliability and the adaptive utility of discrimination among alarm callers. Proc R Soc Lond B 271:1851–1857
Bogert CM (1960) The influence of sound on the behavior of amphibians and reptiles. In: Lanyon WW, Tavolga WW (eds) Animal sounds and communication. Lubrecht and Cramer Ltd., Port Jervis, pp 137–320
Bokermann WCA (1974) Observações sobre desenvolvimento precoce em Sphaenorhynchus bromelicola Bok. 1966 (Anura, Hylidae). Rev Bras Biol 34:35–41
Bosch JI, la Riva D, Márquez R (2000) Advertisement calls of seven species of hiperoliid frogs, from Equatorial Guinea. Amphibia-Reptilia 21:246–255
Brenowitz EA (1982) The active space of red-winged blackbird song. J Comp Physiol 147:511–522
Brodie ED Jr (1978) Biting and vocalization as antipredator mechanisms in terrestrial salamanders. Copeia 1978:127–129
Brodie ED Jr, Formanowicz DR Jr (1981) Palatability and antipredator behavior of the treefrog Hyla versicolor to the shrew Blarina brevicauda. J Herpetol 15:235–236
Capranica RR (1968) The vocal repertoire of the bullfrog (Rana catesbeiana). Behaviour 31:302–325
Cardoso AJ, Haddad CFB (1984) Variabilidade acústica em diferentes populações e interações agressivas de Hyla minuta (Amphibia, Anura). Ciênc e Cult 36(8):1393–1399
Cei JM (1980) Amphibians of Argentina. Monitore Zoologico Italiano (N.S.) Monographies 2
Christensson K, Cabrera T, ChristenssonE U-MK, Winberg J (1995) Separation distress call in the human neonate in the absence of maternal body contact. Acta Paediatr 84:468–473
Cocroft RB, Ryan MJ (1995) Patterns of advertisement call evolution in toads and chorus frogs. Ann Behav 49:283–303
Costa TRN, Toledo LF (2013) Physalaemus spiniger (Anura: Leiuperidae): a frog with an extensive vocal repertoire. J Herpetol 47(4):530–538
Courtis SA (1907) Response of toads to sound stimuli. Am Nat 41:677–682
Darwin C (1871) The descent of men and selection in relation to sex. John Murray, London
Davidson C (2014) Frog and toad calls of the pacific coast: vanishing voice. The Cornell Lab of Ornithology, Ithaca
Davis MS (1987) Acoustically mediated neighbor recognition in the North American bullfrog, Rana catesbeiana. Behav Ecol Sociobiol 21:185–190
De la Riva I, Márquez R, Bosch J (1995) Advertisement calls of eight Bolivian hylids (Amphibia, Anura). J Herpetol 29:113–118
Dickerson MC (1906) The frog book. Doubleday, Page and Co, New York
Duellman WE (1970).The hylidae frogs of Middle America. Monograph of the Museum of Natural History of the University of Kansas 1, 1-753
Duellman WE, Fouquette MJ Jr (1968) Middle American frogs of the Hyla microcephala group. Univ Kans Publ Mus Nat Hist 17:517–557
Duellman WE, Trueb L (1994) Biology of Amphibians. The Johns Hopkins University Press, Baltimore and London
Emerson SB (1992) Courtship and nest-building behavior of a Bornean frog, Rana blythi. Copeia 1992:1123–1127
Emerson SB, Boyd SK (1999) Mating vocalizations of female frogs: control and evolutionary mechanisms. Brain Behav Evol 53:187–197
Feng AS, Narins PM, Xu CH (2002) Vocal acrobatics in a Chinese frog, Amolops tormotus. Naturwissenschaften 89:352–356
Formanowicz DR Jr, Brodie ED Jr (1979) Palatability and antipredator behavior of selected Rana to Shrew Blarina. Am Midl Nat 101:456–458
Fouquette MJ Jr (1960) Isolating mechanisms in three sympatric treefrogs in the Canal Zone. Evolution 14:484–497
Gerhardt HC (1994) The evolution of vocalization in frogs and toads. Annu Rev Syst 25:293–324
Gerhardt HC (1998) Acoustic signals of animals: field measurements, recording, analysis and description. In: Hopp S, Owren M, Evans C (eds) Techniques in the study of animal communication by sound. Springer-Verlag, New York
Gerhardt HC, Huber F (2002) Acoustic communication in insects and anurans. The Chicago university press, Chicago and London
Gerhardt HC, Diekamp B, Ptacek M (1989) Inter-male spacing in choruses of the spring peeper, Pseudacris (Hyla) crucifer. Ann Behav 38:1012–1024
Giaretta AA, Bokermann WCA, Haddad CFB (1993) A review of the genus Megaelosia (Anura: Leptodactylidae) with a description of a new species. J Herpetol 27(3):276–285
Giasson LOM, Haddad CFB (2006) Social interactions in Hypsiboas albomarginatus (Anura: Hylidae) and the significance of acoustic and visual signals. J Herpetol 40:171–180
Goin CJ, Goin OB (1957) Remarks on the behavior of the squirrel treefrog, Hyla squirella. Ann Carnegie Mus 35:27–36
Grafe TU (1995) Graded aggressive calls in the African painted reed frog Hyperolius marmoratus (Hyperoliidae). Ethology 101(1):67–81
Grafe TU, Stoll C, Stefen JO (2000) Vocal repertoire and effect of advertisement call intensity on calling behaviour in the West African tree frog, Leptopelis viridis. Amphibia-Reptilia 21:13–23
Grenat PR, Martino AL (2013) The release call as a diagnostic character between cryptic related species Odontophrynus cordobae and O. americanus (Anura: Cycloramphidae). Zootaxa 3635(5):583–586
Haddad CFB (1987) Comportamento reprodutivo e comunicação sonora de Hyla minuta Peters, 1872 (Amphibia, Anura, Hylidae). Dissertation, Universidade Estadual de Campinas
Haddad CFB (1995) Comunicação em anuros (Amphibia). An Etol 13:116–132
Haddad CFB, Cardoso AJ (1992) Elección del macho por la hembra de Hyla minuta (Amphibia: Anura). Acta Zool Lilloana 41:81–89
Haddad CFB, Giaretta AA (1999) Visual and acoustic communication in the Brazilian Torrent Frog, Hylodes asper (Anura: Leptodactylidae). Herpetology 55(3):324–333
Haddad CFB, Pombal JP Jr (1998) Redescription of Physalaemus spiniger (Anura: Leptodactylidae) and description of two new reproductive modes. J Herpetol 32:557–565
Haddad CFB, Faivovich J, Garcia PCA (2005) The specialized reproductive mode of the treefrog Aplastodiscus perviridis (Anura: Hylidae). Amphibia-Reptilia 26:87–92
Hartmann MT, Giasson LOM, Hartmann PA, Haddad CFB (2005) Visual communication in Brazilian species of anurans from the Atlantic forest. J Nat Hist 39:1675–1685
Heyer WR (1982) Two new species of the frog genus Hylodes from Caparaó, Minas Gerais, Brasil (Amphibia: Leptodactylidae). Proc Biol Soc Wash 95:377–385
Hödl W, Amézquita A (2001) Visual signaling in anuran amphibians. In: Ryan MJ (ed) Anuran Communication. Smithsonian Institution Press, Washington, pp 121–141
Hödl W, Gollmann G (1986) Distress calls in Neotropical frogs. Amphibia-Reptilia 7:11–21
Hoff JG, Moss SA (1974) A distress call in the bullfrog, Rana catesbeiana. Copeia 2:533–534
Högstedt G (1983) Adaptation unto death: function of fear screams. Am Nat 121:562–570
Holmes SJ (1906) The biology of frog. the Macmillan Co, New York
Irisarri I, Vences M, Mauro DS, Zardoya R, Glaw F (2011) Reversal to air-driven sound production revealed by a molecular phylogeny of tongueless frogs, family Pipidae. BMC Evol Biol 11:114
Jameson DL (1954) Social patterns in the leptodactylid frogs Syrrhophus and Eleutherodactylus. Copeia 4:36–38
Jim J, Caramaschi U (1979) Uma nova espécie de Hyla da região de Botucatu, São Paulo Brasil (Amphibia, Anura). Braz J Biol 39(3):717–719
Jurisevic MA, Sanderson KJ (1998) A comparative analysis of distress call structure in Australian passerine and non-passerine species: influence of size and phylogeny. J Avian Biol 29:61–71
Kanamadi RD, Hiremath CR, Schneider H (1994) Advertisement calls of two anuran amphibians, Rana tigrina and Tomopterna breviceps. J Biosci 19:75–80
Kieser AR (1977) Communication in amphibians and reptiles. In: Sebeok TA (ed) How animals communicate. Indiana University Press, Bloomington, pp 519–544
Kokubum MNC, Maciel NM, Matsushita RH, De Queiroz-Junior AT, Seben A (2009) Reproductive biology of the Brazilian sibilator frog Leptodactylus troglodytes. Herpetol J 19(3):119–126
Leary CJ, Razafindratsita VR (1998) Attempt predation on a hylid frog, Phrynohyas venulosa, by an indigo snake, Drymarchon corais, and the response of conspecific frogs to distress calls. Amphibia-Reptilia 19:442–446
Lescure J (1968) Le comportement social des batrachians. Rev Comp An 2:1–33
Lindquist ED, Hetherington TE (1996) Field studies on visual and acoustic signaling in the "earless" Panamanian golden frog, Atelopus zeteki. J Herpetol 30:347–354
Linnaeus C (1758) Systema Naturae, 10. Tom. 1. Pt. 1. Upsala
Littlejohn MJ (1977) Long-range acoustic communication in anurans: an integrated and evolutionary approach. In: Tylor DH, Guttman SI (eds) The reproductive biology of amphibians. Plenum Press, New York, pp 263–294
Littlejohn MJ (2001) Patterns of differentiation in temporal properties of acoustic signals of anurans. In: Ryan MJ (ed) Anuran communication. Smithsonian Institution, Washington, pp 102–120
Lutz B (1947) Trends toward aquatic and direct development in frogs. Copeia 4:242–252
Martins M, Haddad CFB (1988) Vocalizations and reproductive behaviour in the Smith Frog Hyla faber Wied (Amphibia: Hylidae). Amphibia-Reptilia 9:49–60
Martins IA, Jim J (2003) Bioacoustic analysis of advertisement call in Hyla nana and Hyla sanborni in Botucatu, São Paulo, Brazil. Braz J Biol 63:507–516
Martins IA, Jim J (2004) Advertisement call of Hyla jimi and Hyla elianeae (Anura, Hylidae) in Botucaturegion, São Paulo, Brazil. Braz J Biol 64:645–654
Martins M, Pombal JP Jr, Haddad CFB (1998) Escalated aggressive behaviour and facultative parental care in the nest building gladiator frog, Hyla faber. Amphibia-Reptilia 19:65–73
Martof BS (1953) Territoriality in the green frog, Rana clamitans. Ecology 34:165–174
Martof BS, Thompson EF Jr (1958) Reproductive behavior of the chorus frog, Pseudacris nigrita. Behaviour 13(3/4):243–258
McDiarmid RW, Adler K (1974) Notes on territorial and vocal behavior of Neotropical frogs of the genus Centrolenella. Herpetologica 3:75–78
McLister JD, Stevens ED, Bogart JB (1995) Comparative contractile dynamics of calling and locomotor muscles in three hylid frogs. J Exp Biol 198:1527–1538
Measey GJ, Tinsley RC (1997) Mating behavior of Xenopus wittei (Anura: Pipidae). Copeia 1997(3):601–609
Morais AR, Batista VG, Gambale PG, Signorelli L, Bastos RP (2012) Acoustic communication in a Neotropical frog (Dendropsophus minutus): vocal repertoire, variability and individual discrimination. Herpetol J 22:249–257
Narins PM, Feng SA, Fay RR, Popper AN (2007) Hearing and sound communication in amphibians. Springer, New York
Natale GS, Alcalde L, Herrera R, Cajade R, Schaefer EF, Marangoni F, Trudeau VL (2010) Underwater acoustic communication in the macrophagic carnivorous larvae of Ceratophrys ornata (Anura: Ceratophryidae). Acta Zool 92(1):46–53
Noble GK (1931) The biology of the Amphibia. McGrawn Hill, New York
Odendaal FJ, Bull CM, Telford SR (1983) The vocabulary of calls of Ranidella riparia (Anura: Leptodactylidae). Copeia 1983:534–537
Owen PC, Gordon NM (2005) Graded aggressive signals in the green frog, Rana clamitans. Behav Ecol Sociobiol 58(5):446–455
Paillette M (1971) Communication acoustique chez les amphibiens anoures. J Psychol 68:327–351
Pettus D (1955) Notes on the breeding behavior of the common tree-frog (Hyla versicolor). Tex J Sci 7:345–346
Picker MD (1980) Xenopus laevis (Anura: Pipidae) mating systems-a preliminary synthesis with some data on the female phonoresponse. S Afr J Zool 15:150–158
Pombal JP Jr, Sazima I, Haddad CFB (1994) Breeding behavior of the pumpkin toadlet, Brachycephalus ephippium (Brachycephalidae). J Herpetol 28:516–519
Rand AS (2001) A history of frog call studies 405 B.C. to 1980. In: Ryan MJ (ed) Anuran communication. Smithsonian Institution, Washington, pp 8–19
Rödel MO, Kosuch J, Veith M, Ernst R (2003) First record of the genus Acanthixalus Laurent, 1944 from the upper Guinean rain forest, West Africa, with the description of a new species. J Herpetol 37:43–52
Roy D, Borah B, Sarma A (1995) Analysis and significance of female reciprocal call in frogs. Curr Sci 69(3):265
Ryan MJ (1985) The Túngara Frog, a study in sexual selection and communication. University of Chicago Press, Chicago, p 230
Ryan MJ (1991) Sexual selection and communication in frogs. Trends Ecol Evol 6(11):351–355
Ryan MJ (2001) Anuran communication. Smithsonian Institution Press, Washington and London
Sazima I (1975) Distress call in newly metamorphosed smith frog, Hyla faber Wied. Herpetology 31:471–472
Schlaepfer MA, Figeroa-Sandí R (1998) Female reciprocal calling in a Costa Rican leaf-litter frog, Eleutherodactylus podiciferus. Copeia 4:1076–1080
Schmidt RS (1972) Release calling and inflating movements in anurans. Copeia 1972(2):240–245
Schuett GW, Gillingham JC (1990) The function of scream calling in nonsocial vertebrates: testing the predator attraction hypothesis. Bull Chicago Herpetol Soc 25:137–142
Schwartz JJ (1989) Graded aggressive calls of the spring peeper, Pseudacris crucifer. Herpetology 45:172–181
Schwartz JJ (2001) Call monitoring and interactive playback systems in the study of acoustic interactions among male anurans. In: Ryan MJ (ed) Anuran Communication. Smithsonian Institution Press, Washington and London, pp 183–204
Schwartz JJ, Wells KD (1983a) An experimental study of acoustic interference between two species of Neotropical treefrogs. Ann Behav 31:181–190
Schwartz JJ, Wells KD (1983b) The influence of background noise on the behavior of a Neotropical treefrog, Hyla ebraccata. Herpetology 39:121–129
Schwartz JJ, Wells KD (1984a) Interspecific acoustic interactions of the Neotropical treefrog Hyla ebraccata. Behav Ecol Sociobiol 14:211–224
Schwartz JJ, Wells KD (1984b) Vocal behavior of the Neotropical treefrog Hyla phlebodes. Herpetology 40:452–463
Schwartz JJ, Wells KD (1985) Intra-and interspecific vocal behavior of the Neotropical treefrog Hyla microcephala. Copeia 1985:27–38
Shen JX, Feng AS, Xu ZM, Yu ZL, Arch VS, Yu X, Narins PM (2008) Ultrasonic frogs show hyperacute phonotaxis to female courtship calls. Nature 453:914–916
Simmons AM (2004) Call recognition in the bullfrog, Rana catesbeiana: generalization along the duration continuum. J Acoust Soc Am 115(3):1345–1355
Smith AK (1977) Attraction of bullfrogs (Amphibia, Anura, Ranidae) to distress calls of immature frogs. J Herpetol 11:234–235
Staton MA (1978) "Distress calls" of crocodilians—whom do they benefit? Am Nat 112:327–332
Stephenson B, Verrell P (2006) Courtship and mating of the tailed frog (Ascaphus truei). J Zool 259(1):15–22
Stewart MM, Rand AS (1991) Vocalizations and the defense of retreat sites by male and female frogs, Eleutherodactylus coqui. Copeia 1991:1013–1024
Tipler P (1991) Física para Cientistas e Engenheiros. Volume 2: Gravitação, ondas e termodinâmica. LTC Livros Técnicos e Científicos Editora S.A., Rio de Janeiro
Tobias ML, Viswanathan SS, Kelley DB (1998) Rapping, a female receptive call, initiates male–female duets in the South African clawed frog. Proc Natl Acad Sci 95:1870–1875
Toledo LF, Haddad CFB (2005a) Acoustic repertoire and calling site of Scinax fuscomarginatus (Anura, Hylidae). J Herpetol 39(3):455–464
Toledo LF, Haddad CFB (2005b) Reproductive biology of Scinax fuscomarginatus (Anura, Hylidae) in southeastern Brazil. J Nat Hist 39(32):3029–3037
Toledo LF, Haddad CFB (2009) Defensive vocalizations of Neotropical anurans. S Am J Herpetol 4(1):25–42
Toledo LF, Guimarães LD, Lima LP, Bastos RP, Haddad CFB (2004) Notes on courtship, egg-laying site, and defensive behavior of Epipedobates flavopictus (Anura: Dendrobatidae) from two mountain ranges of central and southeastern Brazil. Phyllomedusa 3(2):145–147
Toledo LF, Araújo OGS, Guimarães LD, Lingnau R, Haddad CFB (2007) Visual and acoustic signaling in three species of Brazilian nocturnal tree frogs (Anura, Hylidae). Phyllomedusa 6(1):61–68
Toledo LF, Sazima I, Haddad CFB (2011) Behavioral defenses of anurans: an overview. Ethol Ecol Evol 23(1):1–25
Tunner HG, Hödl W (1978) Warn- oder Alarmruf und Schreckruf bei Rana ridibunda ridibunda (Salientia, Ranidae). Zool Anz 200:386–390
Vielliard JME, Silva ML (2008) Bioacústica - bases teóricas e regras práticas de uso em ornitologia. In: von Matter S, Straube F, Accordi I, Piacentini V, Cândido Jr. JF (Orgs) Ornitologia e Conservação: Ciência Aplicada, Técnicas de Pesquisa e Levantamento. Technical books, Rio de Janeiro, pp 1-12
Vilaça TRA, Silva JRS, Solé M (2011) Vocalization and territorial behaviour of Phyllomedusa nordestina Caramaschi, 2006 (Anura: Hylidae) from southern Bahia, Brazil. J Nat Hist 45(29–30):1823–1834
Weber E (1978) Distress calls of Bufo calamita and B. viridis (Amphibia: Anura). Copeia 1978:354–356
Wells KD (1977a) The social behaviour of anuran amphibians. Ann Behav 25:666–693
Wells KD (1977b) The courtship of frogs. In: Taylor DH, Guttman SI (eds) The reproductive biology of amphibians. Plenum Press, New York, pp 233–262
Wells KD (1980) Behavioral ecology and social organization of a dendrobatid frog (Colostethus inguinalis). Behav Evol Sociobiol 6:199–209
Wells KD (1988) The effect of social interactions on anuran vocal behavior. In: Fritzsch B, Ryan MJ, Wilczynski W, Heterington TE, Walkowiaki W (eds) The evolution of the amphibian auditory system. John Wiley and Sons, New York, pp 433–454
Wells KD (2007) The ecology and behavior of amphibians. The University of Chicago Press, Chicago
Wells KD, Greer BJ (1981) Vocal response to conspecific calls in a Neotropical hylid frog, Hyla ebraccata. Copeia 3:615–624
Wells KD, Schwartz JJ (1984) Vocal communication in a Neotropical treefrog, Hyla ebraccata: aggressive calls. Behaviour 91:128–145
Weygoldt P (1976) Observations on the biology and ethology of Pipa (Hemipipa) carvalhoi Mir. Rib. 1937 (Anura, Pipidae). Z Tierpsychol 40(1):80–99
Wilczynski W, Brenowitz EA (1988) Acoustic cues mediate inter-male spacing in a Neotropical frog. Ann Behav 36:1054–1063
Yager DD (1996) Sound production and acoustic communication in Xenopus borealis. In: Tinsley RC, Kobel HR (eds) The Biology of Xenopus. Clarendom Press, Oxford, pp 121–141
Yerkes RM (1903) The instincts, habits and reactions of the frog. Psychol Rev Monogr 4:579–638
Yerkes RM (1905) The sense of hearing in frogs. J Comp Neurol Psychol 15:279–304
Zank C, Di-Bernardo M, Lingnau R, Colombo P, Fusinatto LA, Fonte LFM (2008) Calling activity and agonistic behavior of Pseudis minuta Günther, 1858 (Anura, Hylidae, Hylinae) in the Reserva Biológica do Lami, Porto Alegre, Brazil. S Am J Herpetol 3(1):51–57
Acknowledgments
Jonatha E. P. Lima helped in field activities. Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) provided grants (2008/50325-5; 2011/51694-7) and fellowships (2008/52847-9; 302589/2013-9) to LFT. DPB thanks FAPESP for a fellowship (2010/17464-1) and Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior(CAPES) for a grant (PROAP). IAM thanks FAPESP for a grant (2006/56007-0). CFBH thanks FAPESP (2013/50741-7) and CNPq (302518/2013-4) for financial support.
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Warning calls of one adult female of Phyllomedusa nordestina, emitted from the ground after handling and approaching stimuli. (MPG 12488 kb)
Juvenile of Phyllomedusa burmeisteri emitting an unidentified call. (WMV 8513 kb)
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Toledo, L.F., Martins, I.A., Bruschi, D.P. et al. The anuran calling repertoire in the light of social context. acta ethol 18, 87–99 (2015). https://doi.org/10.1007/s10211-014-0194-4
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DOI: https://doi.org/10.1007/s10211-014-0194-4