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| Samia, Diogo S. M.; Bessa, Eduardo; Blumstein, Daniel T.; Nunes, José A. C. C.; Azzurro, Ernesto; Morroni, Lorenzo; Sbragaglia, Valerio; Januchowski‐hartley, Fraser A.; Geffroy, Benjamin. |
| In an increasingly anthropic world, humans have profound impacts on the distribution and behaviour of marine fishes. The increased human presence has modified fishesf antipredator behavioural responses, and consequently flight decisions, as a function of their changed perceptions of risk. Understanding how fish react to human presence can help identify the most vulnerable functional groups/species and estimate impacts caused by human disturbance. Shoal and body size are known to influence fish flight initiation distance (FID; the distance between the predator and prey when the prey begins to escape); however, few studies attempt to test the moderators of these relationships. Here, we present a comprehensive meta]analysis evaluating FID of fish in... |
| Tipo: Text |
Palavras-chave: Antipredator behaviour; Economic escape theory; Fish size; Flight initiation distance; Shoal size. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00500/61173/64775.pdf |
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| Geffroy, Benjamin; Sadoul, Bastien; Putman, Breanna J.; Berger-tal, Oded; Garamszegi, László Zsolt; Møller, Anders Pape; Blumstein, Daniel T.; De Waal, Frans B. M.. |
| Humans profoundly impact landscapes, ecosystems, and animal behavior. In many cases, animals living near humans become tolerant of them and reduce antipredator responses. Yet, we still lack an understanding of the underlying evolutionary dynamics behind these shifts in traits that affect animal survival. Here, we used a phylogenetic meta-analysis to determine how the mean and variability in antipredator responses change as a function of the number of generations spent in contact with humans under 3 different contexts: urbanization, captivity, and domestication. We found that any contact with humans leads to a rapid reduction in mean antipredator responses as expected. Notably, the variance among individuals over time observed a short-term increase followed... |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00652/76397/77422.pdf |
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| Sadoul, Bastien; Blumstein, Daniel T.; Alfonso, Sebastien; Geffroy, Benjamin. |
| Wild animals face novel environmental threats from human activities that may occur along a gradient of interactions with humans. Recent work has shown that merely living close to humans has major implications for a variety of antipredator traits and physiological responses. Here, we hypothesize that when human presence protects prey from their genuine predators (as sometimes seen in urban areas and at some tourist sites), this predator shield, followed by a process of habituation to humans, decouples commonly associated traits related to coping styles, which results in a new range of phenotypes. Such individuals are characterized by low aggressiveness and physiological stress responses, but have enhanced behavioral plasticity, boldness, and cognitive... |
| Tipo: Text |
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| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00688/80053/83056.pdf |
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