Nest building by darwin's finches as an overlooked seed dispersal mechanism

Caliochory, or seed dispersal by birds as nest material, has been reported for several species, but its effectiveness remains unclear in most cases. Darwin's finches are traditionally regarded as seed predators, but the observation of two nests challenges this assumption by demonstrating that t...

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Detalles Bibliográficos
Autores: Camacho, Carlos, Beausoleil, M.O., Rabadán-González, Julio, Richard, R.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/194276
Acceso en línea:http://hdl.handle.net/10261/194276
Access Level:acceso abierto
Palabra clave:Community dynamics
Caliochory
Galápagos
Gossypium
Island
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spelling Nest building by darwin's finches as an overlooked seed dispersal mechanismCamacho, CarlosBeausoleil, M.O.Rabadán-González, JulioRichard, R.Community dynamicsCaliochoryGalápagosGossypiumIslandCaliochory, or seed dispersal by birds as nest material, has been reported for several species, but its effectiveness remains unclear in most cases. Darwin's finches are traditionally regarded as seed predators, but the observation of two nests challenges this assumption by demonstrating that they can act as seed dispersers via caliochory. Darwin's finches incorporate cotton-like materials into their nests, including seeds of Darwin's cotton (Gossypium darwinii), a shrub endemic to the Galápagos (Ecuador). Bird nests typically break down after intense rainfall, so the seeds incorporated into nests might benefit from suitable conditions for germination. By simulating the germination conditions experienced over a 72-h period by cotton seeds in a naturally fallen nest, this study qualitatively confirms the long-term viability of at least a small fraction of the seeds at the surface of the nest. Darwin's finches might therefore provide seed-dispersal services to Darwin's cotton and possibly, other native and exotic plants of the Galápagos commonly incorporated into nests. However, larger confirmatory studies are needed.Peer ReviewedCambridge University PressConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/194276reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1942762026-05-22T06:33:51Z
dc.title.none.fl_str_mv Nest building by darwin's finches as an overlooked seed dispersal mechanism
title Nest building by darwin's finches as an overlooked seed dispersal mechanism
spellingShingle Nest building by darwin's finches as an overlooked seed dispersal mechanism
Camacho, Carlos
Community dynamics
Caliochory
Galápagos
Gossypium
Island
title_short Nest building by darwin's finches as an overlooked seed dispersal mechanism
title_full Nest building by darwin's finches as an overlooked seed dispersal mechanism
title_fullStr Nest building by darwin's finches as an overlooked seed dispersal mechanism
title_full_unstemmed Nest building by darwin's finches as an overlooked seed dispersal mechanism
title_sort Nest building by darwin's finches as an overlooked seed dispersal mechanism
dc.creator.none.fl_str_mv Camacho, Carlos
Beausoleil, M.O.
Rabadán-González, Julio
Richard, R.
author Camacho, Carlos
author_facet Camacho, Carlos
Beausoleil, M.O.
Rabadán-González, Julio
Richard, R.
author_role author
author2 Beausoleil, M.O.
Rabadán-González, Julio
Richard, R.
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Community dynamics
Caliochory
Galápagos
Gossypium
Island
topic Community dynamics
Caliochory
Galápagos
Gossypium
Island
description Caliochory, or seed dispersal by birds as nest material, has been reported for several species, but its effectiveness remains unclear in most cases. Darwin's finches are traditionally regarded as seed predators, but the observation of two nests challenges this assumption by demonstrating that they can act as seed dispersers via caliochory. Darwin's finches incorporate cotton-like materials into their nests, including seeds of Darwin's cotton (Gossypium darwinii), a shrub endemic to the Galápagos (Ecuador). Bird nests typically break down after intense rainfall, so the seeds incorporated into nests might benefit from suitable conditions for germination. By simulating the germination conditions experienced over a 72-h period by cotton seeds in a naturally fallen nest, this study qualitatively confirms the long-term viability of at least a small fraction of the seeds at the surface of the nest. Darwin's finches might therefore provide seed-dispersal services to Darwin's cotton and possibly, other native and exotic plants of the Galápagos commonly incorporated into nests. However, larger confirmatory studies are needed.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/194276
url http://hdl.handle.net/10261/194276
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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