Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population

The increases in ungulate populations and hunting bags throughout Europe and North America have resulted in higher carcass numbers available for mesocarnivore species in temperate and boreal forests. The increase in food resources can sustain denser predator populations, potentially affecting prey s...

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Autores: Tobajas, Jorge, Oliva-Vidal, Pilar, Pique, Josep, Afonso Jordana, Ivan, Garcia Ferre, Diego, Moreno Opo, Rubén, Margalida, Antoni
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10459.1/72623
Acesso em linha:https://doi.org/10.1111/acv.12735
http://hdl.handle.net/10459.1/72623
Access Level:acceso abierto
Palavra-chave:Facultative scavengers
Carrion ecology
Tetrao urogallus
Conservació de recursos (Biologia)
Cànids
Guineus
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spelling Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie populationTobajas, JorgeOliva-Vidal, PilarPique, JosepAfonso Jordana, IvanGarcia Ferre, DiegoMoreno Opo, RubénMargalida, AntoniFacultative scavengersCarrion ecologyTetrao urogallusConservació de recursos (Biologia)CànidsGuineusThe increases in ungulate populations and hunting bags throughout Europe and North America have resulted in higher carcass numbers available for mesocarnivore species in temperate and boreal forests. The increase in food resources can sustain denser predator populations, potentially affecting prey species such as the threatened western capercaillie Tetrao urogallus. We investigated the ungulate population trends in recent decades and the carrion use by facultative scavengers in areas of the Pyrenees occupied by capercaillie to assess the potential effects on predation of nests and adult birds, and on its population trend. We found a significant increase in the number of ungulates harvested during the period of sharp capercaillie population decline. Carrion was provided experimentally in forested areas occupied by capercaillie showing that remains were mainly consumed by red fox Vulpes vulpes, followed by wild boar Sus scrofa and marten species (Martes sp.). Season (cold or warm) was the most important factor determining scavenging activity in most species. Main predators of capercaillie nests and adults were martens and red fox, with no predation by wild boar. Our data show that main predators of capercaillie are the same species that mainly consume carrion, especially in winter, and that plentiful carrion resources could maintain higher populations of these species, potentially increasing predation pressure on the capercaillie population. This study shows that managing carrion arising from hunting activity in areas of capercaillie distribution is a necessary management action to reduce the available carrion biomass and so reduce the impact of mesocarnivores on capercaillie conservation.We acknowledge the forestry rangers of Generalitat de Catalunya for field work. The comments of two anonymous reviewers improved the previous version. This work was funded by the Spanish Ministry of Science, Innovation and Universities (RTI2018-099609-B-C22) and the Spanish Ministry for the Ecological Transition and the Demographic Challenge.202120212021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://doi.org/10.1111/acv.12735http://hdl.handle.net/10459.1/72623http://hdl.handle.net/10459.1/72623reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)Inglésinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-099609-B-C22Reproducció del document publicat a https://doi.org/10.1111/acv.12735Animal conservation, 2021, p. 1-14cc-by (c) Tobajas et al., 2021info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:recercat.cat:10459.1/726232026-05-29T05:05:01Z
dc.title.none.fl_str_mv Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population
title Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population
spellingShingle Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population
Tobajas, Jorge
Facultative scavengers
Carrion ecology
Tetrao urogallus
Conservació de recursos (Biologia)
Cànids
Guineus
title_short Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population
title_full Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population
title_fullStr Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population
title_full_unstemmed Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population
title_sort Scavenging patterns of generalist predators in forested areas: the potential implications of increase in carrion availability on a threatened capercaillie population
dc.creator.none.fl_str_mv Tobajas, Jorge
Oliva-Vidal, Pilar
Pique, Josep
Afonso Jordana, Ivan
Garcia Ferre, Diego
Moreno Opo, Rubén
Margalida, Antoni
author Tobajas, Jorge
author_facet Tobajas, Jorge
Oliva-Vidal, Pilar
Pique, Josep
Afonso Jordana, Ivan
Garcia Ferre, Diego
Moreno Opo, Rubén
Margalida, Antoni
author_role author
author2 Oliva-Vidal, Pilar
Pique, Josep
Afonso Jordana, Ivan
Garcia Ferre, Diego
Moreno Opo, Rubén
Margalida, Antoni
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Facultative scavengers
Carrion ecology
Tetrao urogallus
Conservació de recursos (Biologia)
Cànids
Guineus
topic Facultative scavengers
Carrion ecology
Tetrao urogallus
Conservació de recursos (Biologia)
Cànids
Guineus
description The increases in ungulate populations and hunting bags throughout Europe and North America have resulted in higher carcass numbers available for mesocarnivore species in temperate and boreal forests. The increase in food resources can sustain denser predator populations, potentially affecting prey species such as the threatened western capercaillie Tetrao urogallus. We investigated the ungulate population trends in recent decades and the carrion use by facultative scavengers in areas of the Pyrenees occupied by capercaillie to assess the potential effects on predation of nests and adult birds, and on its population trend. We found a significant increase in the number of ungulates harvested during the period of sharp capercaillie population decline. Carrion was provided experimentally in forested areas occupied by capercaillie showing that remains were mainly consumed by red fox Vulpes vulpes, followed by wild boar Sus scrofa and marten species (Martes sp.). Season (cold or warm) was the most important factor determining scavenging activity in most species. Main predators of capercaillie nests and adults were martens and red fox, with no predation by wild boar. Our data show that main predators of capercaillie are the same species that mainly consume carrion, especially in winter, and that plentiful carrion resources could maintain higher populations of these species, potentially increasing predation pressure on the capercaillie population. This study shows that managing carrion arising from hunting activity in areas of capercaillie distribution is a necessary management action to reduce the available carrion biomass and so reduce the impact of mesocarnivores on capercaillie conservation.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1111/acv.12735
http://hdl.handle.net/10459.1/72623
http://hdl.handle.net/10459.1/72623
url https://doi.org/10.1111/acv.12735
http://hdl.handle.net/10459.1/72623
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-099609-B-C22
Reproducció del document publicat a https://doi.org/10.1111/acv.12735
Animal conservation, 2021, p. 1-14
dc.rights.none.fl_str_mv cc-by (c) Tobajas et al., 2021
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by (c) Tobajas et al., 2021
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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