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81.
Grant E. Brown Camille J. Macnaughton Chris K. Elvidge Indar Ramnarine Jean-Guy J. Godin 《Behavioral ecology and sociobiology》2009,63(5):699-706
The antipredator behaviour of prey organisms is shaped by a series of threat-sensitive trade-offs between the benefits associated
with successful predator avoidance and a suite of other fitness-related behaviours such as foraging, mating and territorial
defence. Recent research has shown that the overall intensity of antipredator response and the pattern of threat-sensitive
trade-offs are influenced by current conditions, including variability in predation risk over a period of days to weeks. In
this study, we tested the hypothesis that long-term predation pressure will likewise have shaped the nature of the threat-sensitive
antipredator behaviour of wild-caught Trinidadian guppies (Poecilia reticulata). Female guppies were collected from two populations that have evolved under high- and low-predation pressure, respectively,
in the Aripo River, Northern Mountain Range, Trinidad. Under laboratory conditions, we exposed shoals of three guppies to
varying concentrations of conspecific damage-released chemical alarm cues. Lower Aripo (high-predation) guppies exhibited
the strongest antipredator response when exposed to the highest alarm cue concentration and a graded decline in response intensity
with decreasing concentrations of alarm cue. Upper Aripo (low-predation) guppies, however, exhibited a nongraded (hypersensitive)
response pattern. Our results suggest that long-term predation pressure shapes not only the overall intensity of antipredator
responses of Trinidadian guppies but also their threat-sensitive behavioural response patterns. 相似文献
82.
Karimi Battle Sadet-Bourgeteau Sophie Cannavacciuolo Mario Chauvin Camille Flamin Cyril Haumont Adeline Jean-Baptiste Vincent Reibel Aurélie Vrignaud Grégory Ranjard Lionel 《Environmental Chemistry Letters》2022,20(5):3265-3288
Environmental Chemistry Letters - The global production of biogas has increased threefold during the last decade to partly replace fossil fuels, yet biogas production by anaerobic digestion... 相似文献