GEOGRAPHIC VARIATION IN ADVERTISEMENT CALL AND GENETIC STRUCTURE OF COLOSTETHUS PALMATUS (ANURA, DENDROBATIDAE) FROM THE COLOMBIAN ANDES
- 1 December 2005
- journal article
- Published by Herpetologists League in Herpetologica
- Vol. 61 (4), 395-408
- https://doi.org/10.1655/04-87.1
Abstract
Among frogs endemic to the Colombian Andes, the dendrobatid Colostethus palmatus has an exceptionally wide geographic distribution. We examined the patterns of variation in calls and genetic properties to determine whether this variation is associated with geographic barriers and distances between populations. We analyzed variation in advertisement calls and RAPD products in seven populations along a 346-km transect from south to north throughout the Cordillera Oriental covering an extensive part of the geographical range of C. palmatus. Populations of this species inhabit both slopes of the Cordillera Oriental, and are separated by a continuous ridge along these mountains. We found more inter- than intrapopulational variation. Four call variables and male snout–vent length exhibited clinal variation, generating a predictable geographic pattern which coincided with a climatic gradient of increasing moisture and seasonality. The genetic relations between populations are explained by their location on the Andes, particularly by the side of the slope. Differences between populations in four call characteristics and genetic distance were significantly correlated with linear geographic distances between populations on the same slope. We found evidence for genetic and bioacoustic differentiation between populations living on opposite slopes.Keywords
This publication has 28 references indexed in Scilit:
- IS THE PARTIAL MANTEL TEST INADEQUATE?Evolution, 2002
- Evolutionary Implications of Advertisement Call Variation in Bufo debilis, B. punctatus, and B. retiformisJournal of Herpetology, 2000
- A Comparison of Alternative Strategies for Estimating Gene Flow from Genetic MarkersAnnual Review of Ecology and Systematics, 1997
- Geographic Variation in Calls of Males and Determination of Species Boundaries in Tetraploid Frogs of the Australian Genus Neobatrachus (Myobatrachidae)Australian Journal of Zoology, 1997
- Genetic and Morphological Variation in Vanzolinius discodactylus: A Test of the River Hypothesis of SpeciationBiotropica, 1996
- Amphibian Litter Fauna and River Barriers in Flooded and Non-Flooded Amazonian Rain ForestBiotropica, 1996
- Electrophoretic and vocalization comparisons among three leptodactylid frogs (Pleurodema spp.) from northwestern ArgentinaCanadian Journal of Zoology, 1991
- Interpopulational Variation in Vocalizations of Bufo woodhousiiJournal of Herpetology, 1989
- MATING CALLS OF THE IBERIAN MIDWIFE TOADSALYTES OBSTETRIC ANS BOSCAIANDALYTES CISTERNASIIBioacoustics, 1989
- Sound Pattern Recognition in Some North American Treefrogs (Anura: Hylidae): Implications for Mate ChoiceAmerican Zoologist, 1982