Data/hora: 10/06/2024 08:58:35

Provedor de dados: | 5
País: | France
Título: | Influence of temperature on daily locomotor activity in the crab Uca pugilator
Autores: | Mat, Audrey; Dunster, Gideon P.; Sbragaglia, Valerio; Aguzzi, Jacopo; De La Iglesia, Horacio O.
Data: | 2017-04
Ano: | 2017
Resumo: | Animals living in the intertidal zone are exposed to prominent temperature changes. To cope with the energetic demands of environmental thermal challenges, ectotherms rely mainly on behavioral responses, which may change depending on the time of the day and seasonally. Here, we analyze how temperature shapes crabs’ behavior at 2 different times of the year and show that a transition from constant cold (13.5°C) to constant warm (17.5°C) water temperature leads to increased locomotor activity levels throughout the day in fiddler crabs (Uca pugilator) collected during the summer. In contrast, the same transition in environmental temperature leads to a decrease in the amplitude of the daily locomotor activity rhythm in crabs collected during the winter. In other words, colder temperatures during the cold season favor a more prominent diurnal behavior. We interpret this winter-summer difference in the response of daily locomotor activity to temperature changes within the framework of the circadian thermoenergetics hypothesis, which predicts that a less favorable energetic balance would promote a more diurnal activity pattern. During the winter, when the energetic balance is likely less favorable, crabs would save energy by being more active during the expected high-temperature phase of the day—light phase—and less during the expected low-temperature phase of the day—dark phase. Our results suggest that endogenous rhythms in intertidal ectotherms generate adaptive behavioral programs to cope with thermoregulatory demands of the intertidal habitat.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00384/49507/50001.pdf

DOI:10.1371/journal.pone.0175403

https://archimer.ifremer.fr/doc/00384/49507/

Editor: | Public Library Science
Formato: | application/pdf
Fonte: | Plos One (1932-6203) (Public Library Science), 2017-04 , Vol. 12 , N. 4 , P. e0175403 (1-11)

Fonte:

2017 Mat et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

info:eu-repo/semantics/openAccess

restricted use