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Full-Text Articles in Life Sciences
Linking Predator Responses To Alkaloid Variability In Poison Frogs Language:, J P. Lawrence, Bibiana Rojas, Annelise Blanchett, Ralph Saporito, Johanna Mappes, Antoine Fouquet, Brice P. Noonan
Linking Predator Responses To Alkaloid Variability In Poison Frogs Language:, J P. Lawrence, Bibiana Rojas, Annelise Blanchett, Ralph Saporito, Johanna Mappes, Antoine Fouquet, Brice P. Noonan
2023 Faculty Bibliography
Many chemically-defended/aposematic species rely on diet for sequestering the toxins with which they defend themselves. This dietary acquisition can lead to variable chemical defenses across space, as the community composition of chemical sources is likely to vary across the range of (an aposematic) species. We characterized the alkaloid content of two populations of the Dyeing Poison Frog (Dendrobates tinctorius) in northeastern French Guiana. Additionally, we conducted unpalatability experiments with naive predators, Blue Tits (Cyanistes caeruleus), using whole-skin secretion cocktails to assess how a model predator would respond to the defense of individuals from each population. While there was some overlap …
Escape Behaviour Of Aposematic (Oophaga Pumilio) And Cryptic (Craugastor Sp.) Frogs In Response To Simulated Predator Approach, Ralph Saporito
Escape Behaviour Of Aposematic (Oophaga Pumilio) And Cryptic (Craugastor Sp.) Frogs In Response To Simulated Predator Approach, Ralph Saporito
2017 Faculty Bibliography
Crypsis and aposematism are common antipredator strategies that can each be coupled with behaviours that maximize predator deterrence or avoidance. Cryptic animals employ camouflage to conceal themselves within their environment and generally rely on immobility to avoid detection by predators. Alternatively, aposematic animals tend to rely on an association between conspicuous colouration and secondary defence to deter potential predators, and tend to exhibit slow movements in response to predators. The goal of the present study was to determine how cryptic Craugastorsp. and aposematic Oophaga pumilio respond to simulated human and bird model predators. Oophaga pumilio responded more often with movement …