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| Central American toad | |
|---|---|
| Name | Central American toad |
| Genus | Incilius |
| Species | melanocephalus |
| Authority | (Cope, 1862) |
Central American toad The Central American toad is a medium-sized amphibian of the family Bufonidae, native to Mesoamerica. Its taxonomy has been treated in revisions involving North American and Neotropical herpetologists, and its range overlaps geopolitical regions from southern Mexico through Central America. Field studies by institutions and researchers associated with the Smithsonian Institution, the Natural History Museum, and regional universities have contributed to knowledge of its morphology, behavior, and conservation.
The species was described in the 19th century by Edward Drinker Cope, a figure linked to paleontology debates with Othniel Charles Marsh and to the broader history of American natural history. Subsequent taxonomic work by herpetologists affiliated with the American Museum of Natural History, the Linnean Society, and the International Union for Conservation of Nature has examined genera including Incilius and Bufo in revisions paralleling revisions by George Albert Boulenger and Albert Günther. Etymological notes trace the species epithet to Classical languages used in scientific naming conventions established by Carl Linnaeus and adopted in publications by the Royal Society and Berlin Academy. Nomenclatural changes have been cataloged in global databases curated by institutions such as the IUCN, the Encyclopedia of Life, and the Global Biodiversity Information Facility.
Adult appearance has been documented in field guides produced by the University of Chicago Press and by regional naturalists associated with the University of Costa Rica and the Universidad Nacional Autónoma de México. Morphological characters used in keys parallel work published in journals like Herpetologica, Copeia, and the Journal of Herpetology. Diagnostic features often cited in comparisons with sympatric anurans—topics treated in texts referencing Thomas Bell, John Edward Gray, and Richard Owen—include parotoid gland shape, cranial crest development, dorsolateral coloration, and skin texture. Specimens held in collections at the Smithsonian National Museum of Natural History, the Natural History Museum, London, and the American Museum of Natural History provide reference material for morphometrics and comparative anatomy studies conducted alongside research from the Royal Ontario Museum and Museo Nacional de Costa Rica.
Range assessments appear in biogeographic syntheses by Alfred Russel Wallace and later compilations by biologists associated with the University of California, Berkeley, and the Missouri Botanical Garden. The toad occupies lowland and premontane regions, with occurrences noted near cities and localities that have been the focus of biodiversity surveys, including sites cataloged by the World Wildlife Fund and Conservation International. Habitat descriptions reference ecosystems recognized in conventions and treaties of the Ramsar Convention and protected areas administered through national park systems and UNESCO Man and the Biosphere Reserves. Museum and museum-network locality records, as well as data aggregated by the Global Biodiversity Information Facility, document distribution limits influenced by the geology studied by institutions such as the United States Geological Survey and regional geological surveys.
Ecological observations have been influenced by field programs run by organizations including the Smithsonian Tropical Research Institute, the Tropicbird Foundation, and university biology departments at Yale University and the University of Florida. Nocturnal activity patterns, dietary studies, and predator–prey interactions have been reported in collaboration with conservation NGOs like Fauna & Flora International and the Nature Conservancy. Trophic relationships are interpreted in the context of food-web studies similar to those addressing tropical amphibian declines investigated by researchers at Columbia University and the University of Oxford. Interactions with parasites and pathogens have been studied alongside work on chytridiomycosis by the Amphibian Conservation Alliance and the IUCN SSC Amphibian Specialist Group.
Breeding phenology aligns with rainy-season dynamics documented in meteorological analyses from the National Oceanic and Atmospheric Administration and regional climate assessments by the Intergovernmental Panel on Climate Change. Reproductive modes, clutch sizes, and larval development have been compared in papers published in Zoological Journal of the Linnean Society and developmental studies undertaken at institutions like Harvard University and the University of Cambridge. Larval ecology and metamorphosis rates have been evaluated with methodologies similar to those in long-term monitoring programs coordinated by the Long Term Ecological Research Network and regional conservation organizations.
Assessments by the International Union for Conservation of Nature and national wildlife agencies outline threats including habitat loss from agriculture, deforestation cataloged by global analyses from the Food and Agriculture Organization, and impacts of infrastructure projects reviewed by the World Bank and regional planning authorities. Conservation responses reference protected-area designations overseen by UNESCO World Heritage programs and national park services, as well as species action planning coordinated by NGOs such as Conservation International, Wildlife Conservation Society, and the IUCN Amphibian Specialist Group. Research collaborations involving universities, museums, and international conservation bodies continue to monitor population trends and threat mitigation strategies.
Category:Incilius Category:Amphibians of Central America Category:Taxa named by Edward Drinker Cope