Food level and light conditions affect the antipredator behavior in larvae of a stream-breeding amphibian
07 января 2021 года
10:44
Food level and light conditions affect the antipredator behavior in larvae of a stream-breeding amphibian
Текст новости:
Title: Food level and light conditions affect the antipredator behavior in larvae of a stream-breeding amphibian
Author, co-author: Băncilă, Raluca Ioana; Plăiaşu, Rodica; Stănescu, Florina; Schmidt, Benedikt R.; Nae, Ioana; Denoël, Mathieu
Abstract: Understanding how long-term changes in environmental conditions influence the way that individuals cope with threats is essential in the context of behavioral adaptation to a rapidly changing world. However, little is known about the behavioral responses to predation risk for individuals that experienced different environmental conditions for extended periods of time, such as food levels and light conditions. In this experimental study, we tested whether previous long-term exposure to different food levels (low versus high) and light conditions (0-hour light versus 8-hour light) play a significant role in shaping the antipredator response (i.e., the probability of emerging from the refuge and the distance moved) to stimuli from caged larval dragonflies, in larvae of the fire salamander (Salamandra salamandra). Specifically, we quantified behavioral differences in the response to predation risk in larval salamanders that were reared in the laboratory for two months under controlled food and light conditions. The results of this study showed that the interaction between food level and light conditions affected the antipredator behavior of the larvae. Fire salamander larvae maintained at low food levels and in 8-hour light conditions emerged from the refuge with a higher probability (i.e., took more risk) than larvae maintained at high food levels and all other combinations of light conditions. Thus, our results highlight the complexity of antipredator responses, pointing attention to the fact that interactions among environmental factors are likely to determine the magnitude of antipredator response.


Текст со страницы (автоматическое получение):
Food level and light conditions affect the antipredator behavior in larvae of a stream-breeding amphibian
Language :
Publication date :
Keywords :
[en] behavioral response ; environmental cues ; food levels ; refuge emergence ; light condition ; behavioral avoidance ; behavioral plasticity ; predator avoidance ; predatory risk ; satiation ; open field ; video-tracking ; fire salamander ; Salamandra salamandra ; Romania ; larvae ; activity ; long-term ; Carpathians ; Balkans ; darkness ; infra-red
Abstract :
[en] Understanding how long-term changes in environmental conditions influence the way that individuals cope with threats is essential in the context of behavioral adaptation to a rapidly changing world. However, little is known about the behavioral responses to predation risk for individuals that experienced different environmental conditions for extended periods of time, such as food levels and light conditions. In this experimental study, we tested whether previous long-term exposure to different food levels (low versus high) and light conditions (0-hour light versus 8-hour light) play a significant role in shaping the antipredator response (i.e., the probability of emerging from the refuge and the distance moved) to stimuli from caged larval dragonflies, in larvae of the fire salamander (Salamandra salamandra). Specifically, we quantified behavioral differences in the response to predation risk in larval salamanders that were reared in the laboratory for two months under controlled food and light conditions. The results of this study showed that the interaction between food level and light conditions affected the antipredator behavior of the larvae. Fire salamander larvae maintained at low food levels and in 8-hour light conditions emerged from the refuge with a higher probability (i.e., took more risk) than larvae maintained at high food levels and all other combinations of light conditions. Thus, our results highlight the complexity of antipredator responses, pointing attention to the fact that interactions among environmental factors are likely to determine the magnitude of antipredator response.
Research centres :
Funders :
Fonds de la Recherche Scientifique - F.R.S.-FNRS ; Wallonie-Bruxelles International - WBI ; Executive Unit for Financing Higher Education, Research, Development and Innovation CCCDI-UEFISCDI (ANCS)
Target :
Автоматическая система мониторинга и отбора информации
Источник
Другие материалы рубрики
  07 января 2021 года
12:16
Les compléments alimentaires dédiés à la protection musculaire
  07 января 2021 года
12:14
Les compléments alimentaires dédiés à la croissance musculaire
  07 января 2021 года
11:22
Les troubles de la mémoire à court terme/mémoire de travail
  07 января 2021 года
11:17
Cognitive remediation for neurodevelopmental disabilities.
  07 января 2021 года
11:03
Traité de Neuropsychologie de l’Enfant – 2ème édition