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Título: | Seed dispersal by dispersing juvenile animals: a source of functional connectivity in fragmented landscapes |
Autor: | González-Varo, Juan P. CSIC ORCID; Díaz-García, Sarah; Arroyo, Juan M. CSIC; Jordano, Pedro CSIC ORCID CVN | Palabras clave: | intraspecific variability Cross-habitat spillover natal dispersal DNA barcoding mobile links |
Fecha de publicación: | 10-jul-2019 | Editor: | Royal Society (Great Britain) | Citación: | Biology Letters 15(7): (2019) | Resumen: | Juvenile animals generally disperse from their birthplace to their future breeding territories. In fragmented landscapes, habitat-specialist species must disperse through the anthropogenic matrix where remnant habitats are embedded. Here, we test the hypothesis that dispersing juvenile frugivores leave a footprint in the form of seed deposition through the matrix of fragmented landscapes. We focused on the Sardinian warbler ( Sylvia melanocephala), a resident frugivorous passerine. We used data from field sampling of bird-dispersed seeds in the forest and matrix of a fragmented landscape, subsequent disperser identification through DNA-barcoding analysis, and data from a national bird-ringing programme. Seed dispersal by Sardinian warblers was confined to the forest most of the year, but warblers contributed a peak of seed-dispersal events in the matrix between July and October, mainly attributable to dispersing juveniles. Our study uniquely connects animal and plant dispersal, demonstrating that juveniles of habitat-specialist frugivores can provide mobile-link functions transiently, but in a seasonally predictable way. | Versión del editor: | http://doi.org/10.1098/rsbl.2019.0264 | URI: | http://hdl.handle.net/10261/201622 | DOI: | 10.1098/rsbl.2019.0264 | E-ISSN: | 1744-957X |
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