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Defensive Behavior in Rhinella bergi and Rhinella mirandaribeiroi (Anura: Bufonidae)
Comportamiento defensivo en Rhinella bergi y Rhinella mirandaribeiroi (Anura: Bufonidae)
DOI:
https://doi.org/10.15446/caldasia.v44n3.89189Keywords:
Amphibians, defensive strategy, stiff-legged posture (en)Anfibios, strategia defensiva, postura stiff-legged (es)
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Here we report two cases of defensive behavior known as “stiff-legged”, unprecedented for the species Rhinella bergi and R. mirandaribeiroi. We registered the behavior at localities in Mato Grosso do Sul and Minas Gerais states, Brazil. With our records, there are now five species from open areas that exhibit this behavior. We assume that the species that inhabit these areas exhibit this avoiding predation behavior simulating a dead body on the ground, behavior known as “death feigning”, unlike forest species, which use this strategy to camouflage themselves between the leaves.
Reportamos aquí dos casos de comportamiento defensivo conocido como “stiff-legged”, sin precedentes para las especies Rhinella bergi y R. mirandaribeiroi. Los registros se realizaron en localidades de los estados de Mato Grosso do Sul y Minas Gerais, Brasil. Con nuestros registros, ahora hay cinco especies de áreas abiertas que exhiben este comportamiento. Asumimos que las especies que habitan estas áreas despliegan este comportamiento que evita la depredación simulando un cadáver en el suelo, comportamiento conocido como “fingir la muerte”, a diferencia de las especies forestales, que utilizan esta estrategia para camuflarse entre las hojas.
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