Ungulate presence and predation risks reduce acorn predation by mice in dehesas

Autores
Morán López, Teresa; Sánchez Dávila, Jesús; Torre, Ignasi; Navarro Castilla, Alvaro; Barja, Isabel; Diaz, Mario
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Foraging decisions by rodents are key for the long-term maintenance of oak populations in which avian seed dispersers are absent or inefficient. Decisions are determined by the environmental setting in which acorn-rodent encounters occur. In particular, seed value, competition and predation risks have been found to modify rodent foraging decisions in forest and human-modified habitats. Nonetheless, there is little information about their joint effects on rodent behavior, and hence, local acorn dispersal (or predation). In this work, we manipulate and model the mouse-oak interaction in a Spanish dehesa, an anthropogenic savanna system in which nearby areas can show contrasting levels of ungulate densities and antipredatory cover. First, we conducted a large-scale cafeteria field experiment, where we modified ungulate presence and predation risk, and followed mouse foraging decisions under contrasting levels of moonlight and acorn availability. Then, we estimated the net effects of competition and risk by means of a transition probability model that simulated mouse foraging decisions. Our results show that mice are able to adapt their foraging decisions to the environmental context, affecting initial fates of handled acorns. Under high predation risks mice foraged opportunistically carrying away large and small seeds, whereas under safe conditions large acorns tended to be predated in situ. In addition, in the presence of ungulates lack of antipredatory cover around trees reduced mice activity outside tree canopies, and hence, large acorns had a higher probability of survival. Overall, our results point out that inter-specific interactions preventing efficient foraging by scatter-hoarders can reduce acorn predation. This suggests that the maintenance of the full set of seed consumers as well as top predators in dehesas may be key for promoting local dispersal.
Fil: Morán López, Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Sánchez Dávila, Jesús. Consejo Superior de Investigaciones Científicas. Museo Nacional de Ciencias Naturales; España
Fil: Torre, Ignasi. Museu de Ciències Naturals de Granollers; España
Fil: Navarro Castilla, Alvaro. Universidad Autónoma de Madrid; España
Fil: Barja, Isabel. Universidad Autónoma de Madrid; España
Fil: Diaz, Mario. Consejo Superior de Investigaciones Científicas. Museo Nacional de Ciencias Naturales; España
Materia
Scatter-hoarding
Dehesa
Mice
Oak
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/204571
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/204571
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Ungulate presence and predation risks reduce acorn predation by mice in dehesasMorán López, TeresaSánchez Dávila, JesúsTorre, IgnasiNavarro Castilla, AlvaroBarja, IsabelDiaz, MarioScatter-hoardingDehesaMiceOakhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Foraging decisions by rodents are key for the long-term maintenance of oak populations in which avian seed dispersers are absent or inefficient. Decisions are determined by the environmental setting in which acorn-rodent encounters occur. In particular, seed value, competition and predation risks have been found to modify rodent foraging decisions in forest and human-modified habitats. Nonetheless, there is little information about their joint effects on rodent behavior, and hence, local acorn dispersal (or predation). In this work, we manipulate and model the mouse-oak interaction in a Spanish dehesa, an anthropogenic savanna system in which nearby areas can show contrasting levels of ungulate densities and antipredatory cover. First, we conducted a large-scale cafeteria field experiment, where we modified ungulate presence and predation risk, and followed mouse foraging decisions under contrasting levels of moonlight and acorn availability. Then, we estimated the net effects of competition and risk by means of a transition probability model that simulated mouse foraging decisions. Our results show that mice are able to adapt their foraging decisions to the environmental context, affecting initial fates of handled acorns. Under high predation risks mice foraged opportunistically carrying away large and small seeds, whereas under safe conditions large acorns tended to be predated in situ. In addition, in the presence of ungulates lack of antipredatory cover around trees reduced mice activity outside tree canopies, and hence, large acorns had a higher probability of survival. Overall, our results point out that inter-specific interactions preventing efficient foraging by scatter-hoarders can reduce acorn predation. This suggests that the maintenance of the full set of seed consumers as well as top predators in dehesas may be key for promoting local dispersal.Fil: Morán López, Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; ArgentinaFil: Sánchez Dávila, Jesús. Consejo Superior de Investigaciones Científicas. Museo Nacional de Ciencias Naturales; EspañaFil: Torre, Ignasi. Museu de Ciències Naturals de Granollers; EspañaFil: Navarro Castilla, Alvaro. Universidad Autónoma de Madrid; EspañaFil: Barja, Isabel. Universidad Autónoma de Madrid; EspañaFil: Diaz, Mario. Consejo Superior de Investigaciones Científicas. Museo Nacional de Ciencias Naturales; EspañaPublic Library of Science2022-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/204571Morán López, Teresa; Sánchez Dávila, Jesús; Torre, Ignasi; Navarro Castilla, Alvaro; Barja, Isabel; et al.; Ungulate presence and predation risks reduce acorn predation by mice in dehesas; Public Library of Science; Plos One; 17; 8; 8-2022; 1-151932-6203CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0260419info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0260419info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:56:22Zoai:ri.conicet.gov.ar:11336/204571instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:56:22.366CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Ungulate presence and predation risks reduce acorn predation by mice in dehesas
title Ungulate presence and predation risks reduce acorn predation by mice in dehesas
spellingShingle Ungulate presence and predation risks reduce acorn predation by mice in dehesas
Morán López, Teresa
Scatter-hoarding
Dehesa
Mice
Oak
title_short Ungulate presence and predation risks reduce acorn predation by mice in dehesas
title_full Ungulate presence and predation risks reduce acorn predation by mice in dehesas
title_fullStr Ungulate presence and predation risks reduce acorn predation by mice in dehesas
title_full_unstemmed Ungulate presence and predation risks reduce acorn predation by mice in dehesas
title_sort Ungulate presence and predation risks reduce acorn predation by mice in dehesas
dc.creator.none.fl_str_mv Morán López, Teresa
Sánchez Dávila, Jesús
Torre, Ignasi
Navarro Castilla, Alvaro
Barja, Isabel
Diaz, Mario
author Morán López, Teresa
author_facet Morán López, Teresa
Sánchez Dávila, Jesús
Torre, Ignasi
Navarro Castilla, Alvaro
Barja, Isabel
Diaz, Mario
author_role author
author2 Sánchez Dávila, Jesús
Torre, Ignasi
Navarro Castilla, Alvaro
Barja, Isabel
Diaz, Mario
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Scatter-hoarding
Dehesa
Mice
Oak
topic Scatter-hoarding
Dehesa
Mice
Oak
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Foraging decisions by rodents are key for the long-term maintenance of oak populations in which avian seed dispersers are absent or inefficient. Decisions are determined by the environmental setting in which acorn-rodent encounters occur. In particular, seed value, competition and predation risks have been found to modify rodent foraging decisions in forest and human-modified habitats. Nonetheless, there is little information about their joint effects on rodent behavior, and hence, local acorn dispersal (or predation). In this work, we manipulate and model the mouse-oak interaction in a Spanish dehesa, an anthropogenic savanna system in which nearby areas can show contrasting levels of ungulate densities and antipredatory cover. First, we conducted a large-scale cafeteria field experiment, where we modified ungulate presence and predation risk, and followed mouse foraging decisions under contrasting levels of moonlight and acorn availability. Then, we estimated the net effects of competition and risk by means of a transition probability model that simulated mouse foraging decisions. Our results show that mice are able to adapt their foraging decisions to the environmental context, affecting initial fates of handled acorns. Under high predation risks mice foraged opportunistically carrying away large and small seeds, whereas under safe conditions large acorns tended to be predated in situ. In addition, in the presence of ungulates lack of antipredatory cover around trees reduced mice activity outside tree canopies, and hence, large acorns had a higher probability of survival. Overall, our results point out that inter-specific interactions preventing efficient foraging by scatter-hoarders can reduce acorn predation. This suggests that the maintenance of the full set of seed consumers as well as top predators in dehesas may be key for promoting local dispersal.
Fil: Morán López, Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
Fil: Sánchez Dávila, Jesús. Consejo Superior de Investigaciones Científicas. Museo Nacional de Ciencias Naturales; España
Fil: Torre, Ignasi. Museu de Ciències Naturals de Granollers; España
Fil: Navarro Castilla, Alvaro. Universidad Autónoma de Madrid; España
Fil: Barja, Isabel. Universidad Autónoma de Madrid; España
Fil: Diaz, Mario. Consejo Superior de Investigaciones Científicas. Museo Nacional de Ciencias Naturales; España
description Foraging decisions by rodents are key for the long-term maintenance of oak populations in which avian seed dispersers are absent or inefficient. Decisions are determined by the environmental setting in which acorn-rodent encounters occur. In particular, seed value, competition and predation risks have been found to modify rodent foraging decisions in forest and human-modified habitats. Nonetheless, there is little information about their joint effects on rodent behavior, and hence, local acorn dispersal (or predation). In this work, we manipulate and model the mouse-oak interaction in a Spanish dehesa, an anthropogenic savanna system in which nearby areas can show contrasting levels of ungulate densities and antipredatory cover. First, we conducted a large-scale cafeteria field experiment, where we modified ungulate presence and predation risk, and followed mouse foraging decisions under contrasting levels of moonlight and acorn availability. Then, we estimated the net effects of competition and risk by means of a transition probability model that simulated mouse foraging decisions. Our results show that mice are able to adapt their foraging decisions to the environmental context, affecting initial fates of handled acorns. Under high predation risks mice foraged opportunistically carrying away large and small seeds, whereas under safe conditions large acorns tended to be predated in situ. In addition, in the presence of ungulates lack of antipredatory cover around trees reduced mice activity outside tree canopies, and hence, large acorns had a higher probability of survival. Overall, our results point out that inter-specific interactions preventing efficient foraging by scatter-hoarders can reduce acorn predation. This suggests that the maintenance of the full set of seed consumers as well as top predators in dehesas may be key for promoting local dispersal.
publishDate 2022
dc.date.none.fl_str_mv 2022-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/204571
Morán López, Teresa; Sánchez Dávila, Jesús; Torre, Ignasi; Navarro Castilla, Alvaro; Barja, Isabel; et al.; Ungulate presence and predation risks reduce acorn predation by mice in dehesas; Public Library of Science; Plos One; 17; 8; 8-2022; 1-15
1932-6203
CONICET Digital
CONICET
url http://hdl.handle.net/11336/204571
identifier_str_mv Morán López, Teresa; Sánchez Dávila, Jesús; Torre, Ignasi; Navarro Castilla, Alvaro; Barja, Isabel; et al.; Ungulate presence and predation risks reduce acorn predation by mice in dehesas; Public Library of Science; Plos One; 17; 8; 8-2022; 1-15
1932-6203
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0260419
info:eu-repo/semantics/altIdentifier/doi/10.1371/journal.pone.0260419
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Public Library of Science
publisher.none.fl_str_mv Public Library of Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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