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...
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fttriple:oai:gotriple.eu:http://hdl.handle.net/20.500.11794/70903 2023-05-15T13:13:08+02:00 Insect-mediated apparent competition between mammals in a boreal food web Labadie, Guillemette McLoughlin, Philip D. Hebblewhite, Mark Fortin, Daniel 2021-07-27 https://hdl.handle.net/20.500.11794/70903 en eng The Academy http://hdl.handle.net/20.500.11794/70903 lic_creative-commons CorpusUL envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/20.500.11794/70903 2023-01-22T17:09:11Z 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. Article in Journal/Newspaper Alces alces Canis lupus caribou Rangifer tarandus Unknown |
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English |
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envir geo |
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envir geo Labadie, Guillemette McLoughlin, Philip D. Hebblewhite, Mark Fortin, Daniel Insect-mediated apparent competition between mammals in a boreal food web |
topic_facet |
envir geo |
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 |
Article in Journal/Newspaper |
author |
Labadie, Guillemette McLoughlin, Philip D. Hebblewhite, Mark Fortin, Daniel |
author_facet |
Labadie, Guillemette McLoughlin, Philip D. Hebblewhite, Mark Fortin, Daniel |
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 |
genre |
Alces alces Canis lupus caribou Rangifer tarandus |
genre_facet |
Alces alces Canis lupus caribou Rangifer tarandus |
op_source |
CorpusUL |
op_relation |
http://hdl.handle.net/20.500.11794/70903 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/20.500.11794/70903 |
_version_ |
1766256283239841792 |