Data from: Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance
Intraguild predation (IGP) is a commonly recognized mechanism influencing the community structure of predators, but the complex interactions are notoriously difficult to disentangle. The mesopredator suppression hypothesis predicts that a superpredator may either simultaneously repress two mesopreda...
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ftdryad:oai:v1.datadryad.org:10255/dryad.106475 2023-05-15T13:00:51+02:00 Data from: Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance Mueller, Anna-Katharina Chakarov, Nayden Heseker, Hanna Krüger, Oliver 2016-03-09T21:40:18Z http://hdl.handle.net/10255/dryad.106475 https://doi.org/10.5061/dryad.69qj0 unknown doi:10.5061/dryad.69qj0/1 doi:10.1111/1365-2656.12493 PMID:26781959 doi:10.5061/dryad.69qj0 Mueller A, Chakarov N, Heseker H, Krüger O (2016) Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance. Journal of Animal Ecology 85(3): 774–784. http://hdl.handle.net/10255/dryad.106475 aggression birds of prey breeding performance non-lethal effects raptor territory choice top-predator Article 2016 ftdryad https://doi.org/10.5061/dryad.69qj0 https://doi.org/10.5061/dryad.69qj0/1 https://doi.org/10.1111/1365-2656.12493 2020-01-01T15:29:31Z Intraguild predation (IGP) is a commonly recognized mechanism influencing the community structure of predators, but the complex interactions are notoriously difficult to disentangle. The mesopredator suppression hypothesis predicts that a superpredator may either simultaneously repress two mesopredators, restrain the dominant one and thereby release the subdominant mesopredator, or elicit different responses by both mesopredators. We show the outcome arising from such conditions in a three-level predator assemblage (Eurasian eagle owl Bubo bubo L., northern goshawk Accipiter gentilis L. and common buzzard Buteo buteo L.) studied over 25 years. In the second half of the study period, the eagle owl re-colonized the study area, thereby providing a natural experiment of superpredator introduction. We combined this set-up with detailed GIS analysis of habitat use and a field experiment simulating intrusion by the superpredator into territories of the subdominant mesopredator, the buzzard. Although population trends were positive for all three species in the assemblage, the proportion of failed breeding attempts increased significantly in both mesopredators after the superpredator re-colonized the area. We predicted that superpredator-induced niche shifts in the dominant mesopredator may facilitate mesopredator coexistence in superpredator-free refugia. We found significant changes in nesting habitat choice in goshawk, but not in buzzard. Since competition for enemy-free refugia and the rapid increase in population density may have constrained niche shifts of the subdominant mesopredator, we further predicted behavioural changes in response to the superpredator. The field experiment indeed showed a significant increase in aggressive response of buzzards towards eagle owl territory intrusion over the course of 10 years, probably due to phenotypic plasticity in the response towards superpredation risk. Overall, our results show that intraguild predation can be a powerful force of behavioural change, simultaneously influencing habitat use and aggressiveness in predator communities. These changes might help to buffer mesopredator populations against the negative effects of intraguild predation. Article in Journal/Newspaper Accipiter gentilis eurasian eagle-owl Northern Goshawk Dryad Digital Repository (Duke University) |
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Open Polar |
collection |
Dryad Digital Repository (Duke University) |
op_collection_id |
ftdryad |
language |
unknown |
topic |
aggression birds of prey breeding performance non-lethal effects raptor territory choice top-predator |
spellingShingle |
aggression birds of prey breeding performance non-lethal effects raptor territory choice top-predator Mueller, Anna-Katharina Chakarov, Nayden Heseker, Hanna Krüger, Oliver Data from: Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance |
topic_facet |
aggression birds of prey breeding performance non-lethal effects raptor territory choice top-predator |
description |
Intraguild predation (IGP) is a commonly recognized mechanism influencing the community structure of predators, but the complex interactions are notoriously difficult to disentangle. The mesopredator suppression hypothesis predicts that a superpredator may either simultaneously repress two mesopredators, restrain the dominant one and thereby release the subdominant mesopredator, or elicit different responses by both mesopredators. We show the outcome arising from such conditions in a three-level predator assemblage (Eurasian eagle owl Bubo bubo L., northern goshawk Accipiter gentilis L. and common buzzard Buteo buteo L.) studied over 25 years. In the second half of the study period, the eagle owl re-colonized the study area, thereby providing a natural experiment of superpredator introduction. We combined this set-up with detailed GIS analysis of habitat use and a field experiment simulating intrusion by the superpredator into territories of the subdominant mesopredator, the buzzard. Although population trends were positive for all three species in the assemblage, the proportion of failed breeding attempts increased significantly in both mesopredators after the superpredator re-colonized the area. We predicted that superpredator-induced niche shifts in the dominant mesopredator may facilitate mesopredator coexistence in superpredator-free refugia. We found significant changes in nesting habitat choice in goshawk, but not in buzzard. Since competition for enemy-free refugia and the rapid increase in population density may have constrained niche shifts of the subdominant mesopredator, we further predicted behavioural changes in response to the superpredator. The field experiment indeed showed a significant increase in aggressive response of buzzards towards eagle owl territory intrusion over the course of 10 years, probably due to phenotypic plasticity in the response towards superpredation risk. Overall, our results show that intraguild predation can be a powerful force of behavioural change, simultaneously influencing habitat use and aggressiveness in predator communities. These changes might help to buffer mesopredator populations against the negative effects of intraguild predation. |
format |
Article in Journal/Newspaper |
author |
Mueller, Anna-Katharina Chakarov, Nayden Heseker, Hanna Krüger, Oliver |
author_facet |
Mueller, Anna-Katharina Chakarov, Nayden Heseker, Hanna Krüger, Oliver |
author_sort |
Mueller, Anna-Katharina |
title |
Data from: Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance |
title_short |
Data from: Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance |
title_full |
Data from: Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance |
title_fullStr |
Data from: Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance |
title_full_unstemmed |
Data from: Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance |
title_sort |
data from: intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance |
publishDate |
2016 |
url |
http://hdl.handle.net/10255/dryad.106475 https://doi.org/10.5061/dryad.69qj0 |
genre |
Accipiter gentilis eurasian eagle-owl Northern Goshawk |
genre_facet |
Accipiter gentilis eurasian eagle-owl Northern Goshawk |
op_relation |
doi:10.5061/dryad.69qj0/1 doi:10.1111/1365-2656.12493 PMID:26781959 doi:10.5061/dryad.69qj0 Mueller A, Chakarov N, Heseker H, Krüger O (2016) Intraguild predation leads to cascading effects on habitat choice, behaviour and reproductive performance. Journal of Animal Ecology 85(3): 774–784. http://hdl.handle.net/10255/dryad.106475 |
op_doi |
https://doi.org/10.5061/dryad.69qj0 https://doi.org/10.5061/dryad.69qj0/1 https://doi.org/10.1111/1365-2656.12493 |
_version_ |
1766261898879172608 |