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Full-Text Articles in Life Sciences
Climate Change Enhances The Negative Effects Of Predation Risk On An Intermediate Consumer, Luke P. Miller, Catherine M. Matassa, Geoffrey C. Trussell
Climate Change Enhances The Negative Effects Of Predation Risk On An Intermediate Consumer, Luke P. Miller, Catherine M. Matassa, Geoffrey C. Trussell
Luke P. Miller
Predators are a major source of stress in natural systems because their prey must balance the benefits of feeding with the risk of being eaten. Although this ‘fear’ of being eaten often drives the organization and dynamics of many natural systems, we know little about how such risk effects will be altered by climate change. Here, we examined the interactive consequences of predator avoidance and projected climate warming in a three-level rocky intertidal food chain. We found that both predation risk and increased air and sea temperatures suppressed the foraging of prey in the middle trophic level, suggesting that warming …
Thermal Stress And Predation Risk Trigger Distinct Transcriptomic Responses In The Intertidal Snail Nucella Lapillus, Nathaniel D. Chu, Luke P. Miller, Stefan T. Kaluziak, Geoffrey C. Trussell, Steven V. Vollmer
Thermal Stress And Predation Risk Trigger Distinct Transcriptomic Responses In The Intertidal Snail Nucella Lapillus, Nathaniel D. Chu, Luke P. Miller, Stefan T. Kaluziak, Geoffrey C. Trussell, Steven V. Vollmer
Luke P. Miller
Thermal stress and predation risk have profound effects on rocky shore organisms, triggering changes in their feeding behaviour, morphology and metabolism. Studies of thermal stress have shown that underpinning such changes in several intertidal species are specific shifts in gene and protein expression (e.g. upregulation of heat-shock proteins). But relatively few studies have examined genetic responses to predation risk. Here, we use next-generation RNA sequencing (RNA-seq) to examine the transcriptomic (mRNA) response of the snail Nucella lapillus to thermal stress and predation risk. We found that like other intertidal species, N. lapillus displays a pronounced genetic response to thermal stress …