The strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis

In seed-dispersal mutualisms, the number of fruit a plant displays is a key trait, as it acts asa signal for seed dispersers that entails fruit removal and exportation of reproductive units(fruit crop size hypothesis). Although this hypothesis has gained general acceptance,forces driving the shape a...

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Detalles Bibliográficos
Autores principales:	Palacio, Facundo Xavier, Ordano, Mariano Andrés
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2018
Materias:	Ciencias Naturales Frugivory Mutualism Phenotypic selection Plant-animal interactions Seed dispersal
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/100107 https://ri.conicet.gov.ar/11336/86181
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-100107
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Naturales Frugivory Mutualism Phenotypic selection Plant-animal interactions Seed dispersal
spellingShingle	Ciencias Naturales Frugivory Mutualism Phenotypic selection Plant-animal interactions Seed dispersal Palacio, Facundo Xavier Ordano, Mariano Andrés The strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis
topic_facet	Ciencias Naturales Frugivory Mutualism Phenotypic selection Plant-animal interactions Seed dispersal
description	In seed-dispersal mutualisms, the number of fruit a plant displays is a key trait, as it acts asa signal for seed dispersers that entails fruit removal and exportation of reproductive units(fruit crop size hypothesis). Although this hypothesis has gained general acceptance,forces driving the shape and strength of natural selection exerted by birds on fruit cropsize remains an unresolved matter. Here, we propose that ecological ﬁlters promotinghigh functional equivalence of interacting partners (similar functional roles) translate intosimilar selection pressures on fruit crop size, enhancing selection strength on this trait.We performed a meta-analysis on 50 seed-dispersal systems to test the hypothesisthat frugivorous birds exert positive selection pressure on fruit crop size, and to assesswhether different factors expected to act as ﬁlters (fruit diameter, fruit type, fruiting seasonlength, bird functional groups, and latitude) inﬂuence phenotypic selection regimes onthis trait. Birds promote larger fruit crop sizes as a general pattern in nature. Shortfruiting seasons and a high proportion of species belonging to the same functional groupshowed higher selection strength on fruit crop size. Also, selection strength on fruit cropsize increased for large-fruited species and toward the tropics. Our results support thehypothesis that fruit crop size represents a conspicuous signal advertising the amount ofreward to visually driven interacting partners, and that both plant and bird traits, as wellas environmental factors, drive selection strength on fruit display traits. Furthermore, ourresults suggest that the relationship among forces impinged by phenology and frugivorefunctional roles may be key to understand their evolutionary stability.
format	Articulo Articulo
author	Palacio, Facundo Xavier Ordano, Mariano Andrés
author_facet	Palacio, Facundo Xavier Ordano, Mariano Andrés
author_sort	Palacio, Facundo Xavier
title	The strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis
title_short	The strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis
title_full	The strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis
title_fullStr	The strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis
title_full_unstemmed	The strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis
title_sort	strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis
publishDate	2018
url	http://sedici.unlp.edu.ar/handle/10915/100107 https://ri.conicet.gov.ar/11336/86181
work_keys_str_mv	AT palaciofacundoxavier thestrengthanddriversofbirdmediatedselectiononfruitcropsizeametaanalysis AT ordanomarianoandres thestrengthanddriversofbirdmediatedselectiononfruitcropsizeametaanalysis AT palaciofacundoxavier strengthanddriversofbirdmediatedselectiononfruitcropsizeametaanalysis AT ordanomarianoandres strengthanddriversofbirdmediatedselectiononfruitcropsizeametaanalysis
bdutipo_str	Repositorios
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The strength and drivers of bird-mediated selection on fruit crop size: a meta-analysis

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