Hypomelanism in Agalychnis callidryas (Anura: Hylidae) from Costa Rica
DOI:
https://doi.org/10.11606/issn.2316-9079.v25i1p105-110Keywords:
Amphibians, Coloration, Pigments, Red-eyed Tree Frog, XanthismDownloads
References
Akopyan, M., K. Kaiser, A. Vega, N. G. Savant, C. Y. Owen, S. R. Dudgeon, and J. M. Robertson. 2018. Melodic males and flashy females: geographic variation in male and female reproductive behavior in red‐eyed treefrogs (Agalychnis callidryas). Ethology 124: 54–64.
Bagnara, J. T., P. J. Fernandez, and R. Fujii. 2007. On the blue coloration of vertebrates. Pigment Cell Research 20: 14–26.
Bechtel, H. B. 1991. Inherited color defects. Comparison between humans and snakes. International Journal of Dermatology 30: 243–246.
Bechtel, H. B. 1995. Reptile and Amphibian Variants: Colors, Patterns, and Scales. Malabar. Krieger Publishing Company. 206 pp.
De Plecker, R., A. Solórzano, and Q. Dwyer. 2021. Agalychnis callidryas (Red-eyed Treefrog). Atypical coloration. Herpetological Review 52: 602.
Duellman, W. E. and L. Trueb. 1994. Biology of Amphibians. Baltimore. Johns Hopkins University Press. 670 pp.
Dyrkacz, S. 1981. Recent instances of albinism in North American amphibians and reptiles. Society for the Study of Amphibians and Reptiles. Herpetological Circular 11: 1–31.
Endler, J. A. 1992. Signals, signal conditions, and the direction of evolution. American Naturalist 139: S125–S153.
Fujii, R. 2000. The regulation of motile activity in fish chromatophores. Pigment Cell Research 13: 300–319.
Gould, J. 2025. Colour confusion: reviewing ambiguities in the identification and classification of chromatophore deficiencies among amphibians. Ecology and Evolution 15: e72149.
Gould, J. and C. McHenry. 2024. It’s not easy being green: comparing typical skin colouration among amphibians with colour abnormalities associated with chromatophore deficits. Ecology and Evolution 14: e11438.
Grether, G. F., G. R. Kolluru, and K. Nersissian. 2004. Individual colour patches as multicomponent signals. Biological Reviews 79: 583–610.
Güell, B. A., M. Sánchez, S. Gallo, D. Garro, D. Paniagua, and C. Barrio. 2021. Multiple observations of atypical coloration in Central American Agalychnis treefrogs (Anura: Phyllomedusidae). Herpetology Notes 14: 151–155.
Hedrick, P. W. 2006. Genetic polymorphism in heterogeneous environments: the age of genomics. Annual Review of Ecology and Systematics 37: 67–93.
Henle, K., A. Dubois, and V. Vershinin. 2017. Commented glossary, terminology and synonymies of anomalies in natural populations of amphibians. Mertensiella 25: 9–48.
Hoffman, E. and M. Blouin. 2000. A review of color and pattern polymorphism in anurans. Biological Journal of the Linnean Society 70: 633–665.
Holdridge, L. R. 1967. Life Zone Ecology. San José. Centro Científico Tropical, San José, Costa Rica. 206 pp.
Jablonski, D., A. Alena, P. Vlček, and D. Jandzik. 2014. Axanthism in amphibians: a review and the first record in the widespread toad of the Bufotes viridis complex (Anura: Bufonidae). Belgian Journal of Zoology 144: 93–101.
Jacobs, L. E., A. Vega, S. Dudgeon, K. Kaiser, and J. M. Robertson. 2017. Local not vocal: assortative female choice in divergent populations of red-eyed treefrogs, Agalychnis callidryas (Hylidae: Phyllomedusinae). Biological Journal of the Linnean Society 120: 171–178.
Kelsh, R. N. 2004. Genetics and evolution of pigment patterns in fish. Pigment Cell Research 17: 326–336.
Mendonça, L. R., L. Avelar Oliveira, C. L. Assis, J. J. M. Guedes, and R. N. Feio. 2020. First report of xanthism in Bothrops jararacussu Lacerda, 1884 (Serpentes: Viperidae). Herpetology Notes 13: 393–395.
Pedroso-Santos, F., A. P. Freitas, R. T. Pinheiro, P. R. Sanches, I. L. Kaefer, and C. E. Costa-Campos. 2022. Xanthism in the Leaf-frog Phyllomedusa vaillantii (Anura: Hylidae). Phyllomedusa 21: 215–217.
Prüst, E. 1984. Albinism in snakes. Litteratura Serpentium 4: 6–15. Stevens, M. and S. Merilaita. 2009. Animal camouflage: current issues and new perspectives. Philosophical Transactions of the Royal Society B 364: 423–427.
Stevens, M. and G. D. Ruxton. 2012. Linking the evolution and form of warning coloration in nature. Proceedings of the Royal Society B 279: 417–426.
Umbers, K. D., J. Lehtonen, and J. Mappes. 2015. Deimatic displays. Current Biology 25: R58–R59.
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