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Citations since 2017
4 Research Items
John O. Cossel currently works at the Department of Biology, Northwest Nazarene University. John does research in Systematics (Taxonomy), Zoology and Ecology. Their most recent publication is 'Temporal and spectral analysis of the advertisement call of Craugastor stejnegerianus (Anura: Craugastoridae) in Costa Rica'.
Bioacoustical analysis of the advertisement call of Hypopachus pictiventris, the Southern Narrow-mouthed Frog, from Sarapiqui, Costa Rica with comparison to congeneric species.
We report recent findings of Isthmohyla pictipes (Cope, 1875) in the Cordillera de Talamanca, Costa Rica, roughly two decades after it was last registered. We provide notes on microhabitat use, color variation, external morphology of adults and larvae, and geographic variation, and discuss some taxonomic characters employed to differentiate I. pict...
Certain taxonomic groups appear superficially very similar to each other, which may disguise hidden diversity. In such cases, vocalizations can be important distinguishing characteristics, particularly for anurans. One such group of anurans is the Craugastor podiciferus species group, for which vocalizations of many species have not been previously...
The pathogenic fungus Batrachochytrium dendrobatidis (Bd) has been associated with amphibian declines worldwide but has not been well-studied among Critically Endangered amphibian species in Bolivia. We sampled free-living marbled water frogs Telmatobius marmoratus (Anura: Leptodactylidae) from Isla del Sol, Bolivia, for Bd using skin swabs and qua...
Electroshocking has long been employed as a survey technique for fish, but has not been directly tested against rock rolling as a survey methodology for stream-dwelling amphibians. Electroshocking has the potential to reduce habitat disturbances that result from surveys, improve abundance estimates, and reduce injuries and effort in collecting data...
The pathogenic fungus Batrachochytrium dendrobatidis (Bd) has been implicated as the cause of many global am-phibian declines (Berger et al. 1998; Bosch et al. 2001; Briggs et al. 2005; Longcore et al. 1999; Ron and Merino 2000; Skerratt et al. 2007). Central American amphibians have experienced substantial declines (Stuart et al. 2004, 2008) and B...