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dc.contributor.author
Palacio, Facundo Xavier
dc.date.available
2021-03-09T17:08:10Z
dc.date.issued
2019-08
dc.identifier.citation
Palacio, Facundo Xavier; Seed dispersal effectiveness by frugivorous birds: Identifying functional equivalent species in bird assemblages; Science Reviews 2000 Ltd; Avian Biology Research; 12; 3; 8-2019; 103-108
dc.identifier.issn
1758-1559
dc.identifier.uri
http://hdl.handle.net/11336/127841
dc.description.abstract
Seed dispersal by birds is a pivotal ecosystem function worldwide; yet, the rapid and ongoing global biodiversity loss poses a major threat to this essential ecosystem service. Seed dispersal effectiveness (SDE) is a key outcome of the interaction, represented by the product of seed dispersal quantity (number of seed dispersed) and quality (probability of recruitment of dispersed seeds). Therefore, identifying functional equivalent species in terms of SDE should become a key issue for bird conservation, since the effects of local extinctions on seed dispersal services may be weakened by remaining equivalent species. However, a method to quantitatively identify functional equivalent species in frugivorous bird assemblages is still lacking. To estimate SDE overlap between seed dispersers and assess whether two species may be functionally equivalent, I apply a novel nonparametric niche overlap index based on kernel functions and null models to test its statistical significance. For each bird species, I account for intraspecific variation in seed dispersal effectiveness to obtain a distribution of seed dispersal effectiveness values, an often neglected source of variation in seed dispersal assemblages. Non-significant differences in seed dispersal effectiveness overlap support the hypothesis that two species are functional equivalent, thus playing similar functional roles. The model proposed is applicable to any other quantity or quality component and is independent from the method or sampling design used to quantify SDE. The identification of functional equivalent species in seed dispersal assemblages adds to the theoretical framework of seed dispersal effectiveness and offers new insights into the ecology of the seed dispersal service provided by birds.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Science Reviews 2000 Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
FRUGIVORY
dc.subject
KERNEL DENSITY FUNCTION
dc.subject
MUTUALISM
dc.subject
NICHE OVERLAP
dc.subject
SEED DISPERSAL EFFECTIVENESS LANDSCAPE
dc.subject.classification
Zoología, Ornitología, Entomología, Etología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Seed dispersal effectiveness by frugivorous birds: Identifying functional equivalent species in bird assemblages
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-03-05T18:37:53Z
dc.journal.volume
12
dc.journal.number
3
dc.journal.pagination
103-108
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Palacio, Facundo Xavier. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.journal.title
Avian Biology Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1177/1758155919832189
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.sagepub.com/doi/10.1177/1758155919832189
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