Insect-mediated apparent competition between mammals in a boreal food web
While the important role of animal-mediated interactions in the top-down restructuring of plant communities is well documented, less is known of their ensuing repercussions at higher trophic levels. We demonstrate how typically decoupled ecological interactions may become intertwined such that the i...
Published in: | Proceedings of the National Academy of Sciences |
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Language: | English |
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The Academy
2021
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Online Access: | https://hdl.handle.net/20.500.11794/70903 https://doi.org/10.1073/pnas.2022892118 |
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ftunivlavalcorp:oai:corpus.ulaval.ca:20.500.11794/70903 2024-06-23T07:45:11+00:00 Insect-mediated apparent competition between mammals in a boreal food web Labadie, Guillemette Fortin, Daniel McLoughlin, Philip D. Hebblewhite, Mark 2021-11-12T16:25:10Z application/pdf https://hdl.handle.net/20.500.11794/70903 https://doi.org/10.1073/pnas.2022892118 eng eng The Academy 0027-8424 http://hdl.handle.net/20.500.11794/70903 doi:10.1073/pnas.2022892118 34282006 http://purl.org/coar/access_right/c_abf2 insect outbreaks habitat selection species interactions species conservation apparent competition Prédation (Biologie) Compétition (Biologie) Tordeuse des bourgeons de l'épinette Orignal Caribou des bois Loup gris Habitat (Écologie) Forêts boréales article de recherche COAR1_1::Texte::Périodique::Revue::Contribution à un journal::Article::Article de recherche 2021 ftunivlavalcorp https://doi.org/20.500.11794/7090310.1073/pnas.2022892118 2024-06-03T23:43:58Z While the important role of animal-mediated interactions in the top-down restructuring of plant communities is well documented, less is known of their ensuing repercussions at higher trophic levels. We demonstrate how typically decoupled ecological interactions may become intertwined such that the impact of an insect pest on forest structure and composition alters predator–prey interactions among large mammals. Specifically, we show how irruptions in a common, cyclic insect pest of the boreal forest, the spruce budworm (Choristoneura fumiferana), modulated an indirect trophic interaction by initiating a flush in deciduous vegetation that benefited moose (Alces alces), in turn strengthening apparent competition between moose and threatened boreal caribou (Rangifer tarandus caribou) via wolf (Canis lupus) predation. Critically, predation on caribou postoutbreak was exacerbated by human activity (salvage logging). We believe our observations of significant, large-scale reverberating consumer–producer–consumer interactions are likely to be common in nature. Other/Unknown Material Alces alces Canis lupus caribou Rangifer tarandus loup gris Université Laval: CorpusUL Proceedings of the National Academy of Sciences 118 30 |
institution |
Open Polar |
collection |
Université Laval: CorpusUL |
op_collection_id |
ftunivlavalcorp |
language |
English |
topic |
insect outbreaks habitat selection species interactions species conservation apparent competition Prédation (Biologie) Compétition (Biologie) Tordeuse des bourgeons de l'épinette Orignal Caribou des bois Loup gris Habitat (Écologie) Forêts boréales |
spellingShingle |
insect outbreaks habitat selection species interactions species conservation apparent competition Prédation (Biologie) Compétition (Biologie) Tordeuse des bourgeons de l'épinette Orignal Caribou des bois Loup gris Habitat (Écologie) Forêts boréales Labadie, Guillemette Fortin, Daniel McLoughlin, Philip D. Hebblewhite, Mark Insect-mediated apparent competition between mammals in a boreal food web |
topic_facet |
insect outbreaks habitat selection species interactions species conservation apparent competition Prédation (Biologie) Compétition (Biologie) Tordeuse des bourgeons de l'épinette Orignal Caribou des bois Loup gris Habitat (Écologie) Forêts boréales |
description |
While the important role of animal-mediated interactions in the top-down restructuring of plant communities is well documented, less is known of their ensuing repercussions at higher trophic levels. We demonstrate how typically decoupled ecological interactions may become intertwined such that the impact of an insect pest on forest structure and composition alters predator–prey interactions among large mammals. Specifically, we show how irruptions in a common, cyclic insect pest of the boreal forest, the spruce budworm (Choristoneura fumiferana), modulated an indirect trophic interaction by initiating a flush in deciduous vegetation that benefited moose (Alces alces), in turn strengthening apparent competition between moose and threatened boreal caribou (Rangifer tarandus caribou) via wolf (Canis lupus) predation. Critically, predation on caribou postoutbreak was exacerbated by human activity (salvage logging). We believe our observations of significant, large-scale reverberating consumer–producer–consumer interactions are likely to be common in nature. |
format |
Other/Unknown Material |
author |
Labadie, Guillemette Fortin, Daniel McLoughlin, Philip D. Hebblewhite, Mark |
author_facet |
Labadie, Guillemette Fortin, Daniel McLoughlin, Philip D. Hebblewhite, Mark |
author_sort |
Labadie, Guillemette |
title |
Insect-mediated apparent competition between mammals in a boreal food web |
title_short |
Insect-mediated apparent competition between mammals in a boreal food web |
title_full |
Insect-mediated apparent competition between mammals in a boreal food web |
title_fullStr |
Insect-mediated apparent competition between mammals in a boreal food web |
title_full_unstemmed |
Insect-mediated apparent competition between mammals in a boreal food web |
title_sort |
insect-mediated apparent competition between mammals in a boreal food web |
publisher |
The Academy |
publishDate |
2021 |
url |
https://hdl.handle.net/20.500.11794/70903 https://doi.org/10.1073/pnas.2022892118 |
genre |
Alces alces Canis lupus caribou Rangifer tarandus loup gris |
genre_facet |
Alces alces Canis lupus caribou Rangifer tarandus loup gris |
op_relation |
0027-8424 http://hdl.handle.net/20.500.11794/70903 doi:10.1073/pnas.2022892118 34282006 |
op_rights |
http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/20.500.11794/7090310.1073/pnas.2022892118 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
118 |
container_issue |
30 |
_version_ |
1802637957508628480 |