Data from: Prey state shapes the effects of temporal variation in predation risk
The ecological impacts of predation risk are influenced by how prey allocate foraging effort across periods of safety and danger. Foraging decisions depend on current danger, but also on the larger temporal, spatial or energetic context in which prey manage their risks of predation and starvation. U...
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Online Access: | http://hdl.handle.net/10255/dryad.71362 https://doi.org/10.5061/dryad.86n98 |
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ftdryad:oai:v1.datadryad.org:10255/dryad.71362 2023-05-15T17:34:12+02:00 Data from: Prey state shapes the effects of temporal variation in predation risk Matassa, Catherine M. Trussell, Geoffrey C. New England USA North Atlantic Gulf of Maine 2014-10-03T19:59:38Z http://hdl.handle.net/10255/dryad.71362 https://doi.org/10.5061/dryad.86n98 unknown doi:10.5061/dryad.86n98/1 doi:10.1098/rspb.2014.1952 PMID:25339716 doi:10.5061/dryad.86n98 Matassa CM, Trussell GC (2014) Prey state shapes the effects of temporal variation in predation risk. Proceedings of the Royal Society B 281(1796): 20141952. http://hdl.handle.net/10255/dryad.71362 energy transfer food chain lengh growth/predation risk trade-off nonconsumptive effect risk allocation trait-mediated indirect interaction trophic heat Article 2014 ftdryad https://doi.org/10.5061/dryad.86n98 https://doi.org/10.5061/dryad.86n98/1 https://doi.org/10.1098/rspb.2014.1952 2020-01-01T15:12:03Z The ecological impacts of predation risk are influenced by how prey allocate foraging effort across periods of safety and danger. Foraging decisions depend on current danger, but also on the larger temporal, spatial or energetic context in which prey manage their risks of predation and starvation. Using a rocky intertidal food chain, we examined the responses of starved and fed prey (Nucella lapillus dogwhelks) to different temporal patterns of risk from predatory crabs (Carcinus maenas). Prey foraging activity declined during periods of danger, but as dangerous periods became longer, prey state altered the magnitude of risk effects on prey foraging and growth, with likely consequences for community structure (trait-mediated indirect effects on basal resources, Mytilus edulis mussels), prey fitness and trophic energy transfer. Because risk is inherently variable over time and space, our results suggest that non-consumptive predator effects may be most pronounced in productive systems where prey can build energy reserves during periods of safety and then burn these reserves as ‘trophic heat’ during extended periods of danger. Understanding the interaction between behavioural (energy gain) and physiological (energy use) responses to risk may illuminate the context dependency of trait-mediated trophic cascades and help explain variation in food chain length. Article in Journal/Newspaper North Atlantic Nucella lapillus Dryad Digital Repository (Duke University) |
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Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
energy transfer food chain lengh growth/predation risk trade-off nonconsumptive effect risk allocation trait-mediated indirect interaction trophic heat |
spellingShingle |
energy transfer food chain lengh growth/predation risk trade-off nonconsumptive effect risk allocation trait-mediated indirect interaction trophic heat Matassa, Catherine M. Trussell, Geoffrey C. Data from: Prey state shapes the effects of temporal variation in predation risk |
topic_facet |
energy transfer food chain lengh growth/predation risk trade-off nonconsumptive effect risk allocation trait-mediated indirect interaction trophic heat |
description |
The ecological impacts of predation risk are influenced by how prey allocate foraging effort across periods of safety and danger. Foraging decisions depend on current danger, but also on the larger temporal, spatial or energetic context in which prey manage their risks of predation and starvation. Using a rocky intertidal food chain, we examined the responses of starved and fed prey (Nucella lapillus dogwhelks) to different temporal patterns of risk from predatory crabs (Carcinus maenas). Prey foraging activity declined during periods of danger, but as dangerous periods became longer, prey state altered the magnitude of risk effects on prey foraging and growth, with likely consequences for community structure (trait-mediated indirect effects on basal resources, Mytilus edulis mussels), prey fitness and trophic energy transfer. Because risk is inherently variable over time and space, our results suggest that non-consumptive predator effects may be most pronounced in productive systems where prey can build energy reserves during periods of safety and then burn these reserves as ‘trophic heat’ during extended periods of danger. Understanding the interaction between behavioural (energy gain) and physiological (energy use) responses to risk may illuminate the context dependency of trait-mediated trophic cascades and help explain variation in food chain length. |
format |
Article in Journal/Newspaper |
author |
Matassa, Catherine M. Trussell, Geoffrey C. |
author_facet |
Matassa, Catherine M. Trussell, Geoffrey C. |
author_sort |
Matassa, Catherine M. |
title |
Data from: Prey state shapes the effects of temporal variation in predation risk |
title_short |
Data from: Prey state shapes the effects of temporal variation in predation risk |
title_full |
Data from: Prey state shapes the effects of temporal variation in predation risk |
title_fullStr |
Data from: Prey state shapes the effects of temporal variation in predation risk |
title_full_unstemmed |
Data from: Prey state shapes the effects of temporal variation in predation risk |
title_sort |
data from: prey state shapes the effects of temporal variation in predation risk |
publishDate |
2014 |
url |
http://hdl.handle.net/10255/dryad.71362 https://doi.org/10.5061/dryad.86n98 |
op_coverage |
New England USA North Atlantic Gulf of Maine |
genre |
North Atlantic Nucella lapillus |
genre_facet |
North Atlantic Nucella lapillus |
op_relation |
doi:10.5061/dryad.86n98/1 doi:10.1098/rspb.2014.1952 PMID:25339716 doi:10.5061/dryad.86n98 Matassa CM, Trussell GC (2014) Prey state shapes the effects of temporal variation in predation risk. Proceedings of the Royal Society B 281(1796): 20141952. http://hdl.handle.net/10255/dryad.71362 |
op_doi |
https://doi.org/10.5061/dryad.86n98 https://doi.org/10.5061/dryad.86n98/1 https://doi.org/10.1098/rspb.2014.1952 |
_version_ |
1766132966299271168 |