Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects

1 The effectiveness of a seed disperser depends on the quantity of seed dispersed and the quality of dispersal provided to each seed. Relationships between the quantity and quality components and their dependence on characteristics of the dispersers remain largely uninvestigated. 2 The effectiveness...

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Authors: Figuerola, Jordi, Green, Andy J., Santamaría, Luis
Format: article
Publication Date:2002
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/43047
Online Access:http://hdl.handle.net/10261/43047
Access Level:Open access
Keyword:dispersal quality
dispersal quantity
effects of seed digestion by vertebrates
germination rate
germination speed
gut structure
Seed dispersal
seed germination
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spelling Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspectsFiguerola, JordiGreen, Andy J.Santamaría, Luisdispersal qualitydispersal quantityeffects of seed digestion by vertebratesgermination rategermination speedgut structureSeed dispersalseed germination1 The effectiveness of a seed disperser depends on the quantity of seed dispersed and the quality of dispersal provided to each seed. Relationships between the quantity and quality components and their dependence on characteristics of the dispersers remain largely uninvestigated. 2 The effectiveness of different waterfowl species at dispersing seeds of Ruppia mar- itima was evaluated in a wetland in south-west Spain. Droppings were collected during autumn and spring waterfowl migrations and the number of seeds ingested (estimated from seed fragments), undigested and viable in germination trials were determined. 3 Ingestion by waterfowl enhanced the rate of germination and, for several duck spe- cies, it also had a positive effect on germinability. Both the presence of seeds in the diet and the effects of gut passage showed high interspecific and temporal variance. Some of the interspecific variation in dispersal quality was related to gut structure: species with heavier gizzards destroyed a higher proportion of seeds and undigested seeds ingested by species with more grit in the gizzard germinated better. 4 In the waterfowl community studied, the quantity and quality components of seed dispersal effectiveness were positively correlated across speciesPeer reviewedBlackwell Publishing201120112002info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/43047reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://onlinelibrary.wiley.com/doi/10.1046/j.1365-2745.2002.00734.x/pdfinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/430472026-05-22T06:33:51Z
dc.title.none.fl_str_mv Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects
title Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects
spellingShingle Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects
Figuerola, Jordi
dispersal quality
dispersal quantity
effects of seed digestion by vertebrates
germination rate
germination speed
gut structure
Seed dispersal
seed germination
title_short Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects
title_full Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects
title_fullStr Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects
title_full_unstemmed Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects
title_sort Comparative dispersal effectiveness of wigeongrass seeds by waterfowl wintering in south-west Spain: quantitative and qualitative aspects
dc.creator.none.fl_str_mv Figuerola, Jordi
Green, Andy J.
Santamaría, Luis
author Figuerola, Jordi
author_facet Figuerola, Jordi
Green, Andy J.
Santamaría, Luis
author_role author
author2 Green, Andy J.
Santamaría, Luis
author2_role author
author
dc.subject.none.fl_str_mv dispersal quality
dispersal quantity
effects of seed digestion by vertebrates
germination rate
germination speed
gut structure
Seed dispersal
seed germination
topic dispersal quality
dispersal quantity
effects of seed digestion by vertebrates
germination rate
germination speed
gut structure
Seed dispersal
seed germination
description 1 The effectiveness of a seed disperser depends on the quantity of seed dispersed and the quality of dispersal provided to each seed. Relationships between the quantity and quality components and their dependence on characteristics of the dispersers remain largely uninvestigated. 2 The effectiveness of different waterfowl species at dispersing seeds of Ruppia mar- itima was evaluated in a wetland in south-west Spain. Droppings were collected during autumn and spring waterfowl migrations and the number of seeds ingested (estimated from seed fragments), undigested and viable in germination trials were determined. 3 Ingestion by waterfowl enhanced the rate of germination and, for several duck spe- cies, it also had a positive effect on germinability. Both the presence of seeds in the diet and the effects of gut passage showed high interspecific and temporal variance. Some of the interspecific variation in dispersal quality was related to gut structure: species with heavier gizzards destroyed a higher proportion of seeds and undigested seeds ingested by species with more grit in the gizzard germinated better. 4 In the waterfowl community studied, the quantity and quality components of seed dispersal effectiveness were positively correlated across species
publishDate 2002
dc.date.none.fl_str_mv 2002
2011
2011
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/43047
url http://hdl.handle.net/10261/43047
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://onlinelibrary.wiley.com/doi/10.1046/j.1365-2745.2002.00734.x/pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
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
_version_ 1869407834822672384
score 15,811543

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