Behavioral Ecology and Sociobiology

, Volume 19, Issue 2, pp 135–141 | Cite as

Clinal variation in anuran advertisement calls: basis for acoustic isolation?

  • Peter M. Narins
  • Sheila L. Smith


The calls of male treefrogs (Eleutherodactylus coqui) were studied along an altitudinal gradient in the Luquillo Mountains in eastern Puerto Rico. The fundamental frequency of each note in the advertisement call was highly negatively correlated with altitude. Although males responded vigorously to playbacks of calls of other males recorded at their own altitude, males at high altitudes responded less frequently to recorded calls of males from low altitudes, and males at low altitudes responded less frequently to recorded calls of males from high altitudes. These results are discussed in relation to potential isolation in contiguous populations of E. coqui.


High Altitude Clinal Variation Fundamental Frequency Altitudinal Gradient Advertisement Call 
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  1. Blair WF (1958) Mating call in the speciation of anuran amphibians. Am Nat 92:27–51Google Scholar
  2. Bogert CM (1960) The influence of sound on the behavior of amphibians and reptiles. In: Lanyon WE, Tavolga WN (eds) Animal sounds and communication. Am Inst Biol Sci, Washington, DC, pp 137–320Google Scholar
  3. Capranica RR, Frishkopf LS, Nevo E (1973) Encoding of geographic dialects in the auditory system of the cricket frog. Science 182:1272–1275Google Scholar
  4. Drewry GE (1970) The role of amphibians in the ecology of the Puerto Rican rain forest. In: Puerto Rico Nuclear Center Rain Forest Project Annual Report. Puerto Rico Nuclear Center, San Juan, pp 16–63Google Scholar
  5. Drewry GE, Rand AS (1983) Characteristics of an acoustic community: Puerto Rican frogs of the genus Eleutherodactylus. Copeia 1983:941–953Google Scholar
  6. Goin CJ, Goin OB, Zug GR (1978) Introduction to Herpetology. WH Freeman and Company, San Francisco, CaliforniaGoogle Scholar
  7. Jameson DL, Mackey JP, Anderson M (1973) Weather, climate, and external morphology of Pacific tree toads. Evolution 27:285–302Google Scholar
  8. Littlejohn MJ (1959) Call differentiation in a complex of seven species of Crinia (Anura: Leptodactylidae). Evolution 13:452–468Google Scholar
  9. Littlejohn MJ (1977) Long-range acoustic communication in anurans: an integrated and evolutionary approach. In: Taylor DH, Guttman SI (eds) The reproductive biology of amphibians. Plenum, New York London, pp 263–294Google Scholar
  10. McClave JT, Dietrich FH (1982) Statistics. Dellen Publishing Company, Santa Clara, CaliforniaGoogle Scholar
  11. Narins PM (1982a) Effects of masking noise on evoked calling in the Puerto Rican coqui (Anura: Leptodactylidae). J Comp Physiol 147:439–446Google Scholar
  12. Narins PM (1982b) Behavioral refractory period in neotropical treefrogs. J Comp Physiol 148:337–344Google Scholar
  13. Narins PM (1983) Synchronous vocal response mediated by the amphibian papilla in a neotropical treefrog: behavioural evidence. J Exp Biol 105:95–105Google Scholar
  14. Narins PM, Capranica RR (1976) Sexual differences in the auditory system of the treefrog Eleutherodactylus coqui. Science 192:378–380Google Scholar
  15. Narins PM, Capranica RR (1978) Communicative significance of the two-note call of the treefrog Eleutherodactylus coqui. J Comp Physiol 127:1–9Google Scholar
  16. Narins PM, Hurley DD (1982) The relationship between call intensity and function in the Puerto Rican coqui (Anura: Leptodactylidae). Herpetologica 38:287–295Google Scholar
  17. Nevo E, Schneider H (1976) Mating cell pattern of green toads in Israel and its ecological correlate. J Zool 178:133–145Google Scholar
  18. Ramer JD, Jenssen TA, Hurst CJ (1983) Size-related variation in the advertisement call of Rana clamitans (Anura: Ranidae), and its effect on conspecific males. Copeia 1983:141–155Google Scholar
  19. Ricklefs RE (1979) Ecology, Second Ed. Thomas Nelson & Sons Ltd, Sunbury-on-ThamesGoogle Scholar
  20. Rivero JA (1978) Los anfibios y reptiles de Puerto Rico. Univ Puerto Rico Editorial Universitaria, San JuanGoogle Scholar
  21. Ryan MJ (1980) Female mate choice in a neotropical frog. Science 209:523–525Google Scholar
  22. SAS Institute, Inc (1982) SAS Circle, P.O. Box 8000, Cary, North Carolina 27511Google Scholar
  23. Schwart JJ, Wells KD (1984) Interspecific acoustic interactions of the neotropical treefrog Hyla ebraccata. Behav Ecol Sociobiol 14:211–224Google Scholar
  24. Wells KD (1977) The social behavior of anuran amphibians. Anim Behav 25:666–693Google Scholar
  25. Wiley RH, Richards DG (1978) Physical constraints on acoustic communication in the atmosphere: Implications for the evolution of animal vocalizations. Behav Ecol Sociobiol 3:69–94Google Scholar

Copyright information

© Springer-Verlag 1986

Authors and Affiliations

  • Peter M. Narins
    • 1
  • Sheila L. Smith
    • 1
  1. 1.Department of BiologyUniversity of CaliforniaLos AngelesUSA

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