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dc.contributor.author
Morán López, Teresa
dc.contributor.author
Robledo Arnuncio, Juan José
dc.contributor.author
Díaz, Mario
dc.contributor.author
Morales, Juan Manuel
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Lázaro Nogal, Ana
dc.contributor.author
Lorenzo, Zaida
dc.contributor.author
Valladares, Fernando
dc.date.available
2019-02-25T18:38:08Z
dc.date.issued
2016-05
dc.identifier.citation
Morán López, Teresa; Robledo Arnuncio, Juan José; Díaz, Mario; Morales, Juan Manuel; Lázaro Nogal, Ana; et al.; Determinants of functional connectivity of holm oak woodlands: Fragment size and mouse foraging behavior; Elsevier Science; Forest Ecology and Management; 368; 5-2016; 111-122
dc.identifier.issn
0378-1127
dc.identifier.uri
http://hdl.handle.net/11336/70798
dc.description.abstract
Demographic and genetic connectivity of fragmented plant populations will depend on effective propagule flow across the landscape. We analyze functional connectivity in a holm oak (Quercus ilex) fragmented landscape by considering three important stages driving recruitment: effective pollination, acorn production and acorn dispersal. We used a network approach to (1) determine if pollen-mediated gene exchange across the landscape was spatially structured; (2) estimate the effects of limited acorn dispersal on functional connectivity; (3) identify which landscape traits could drive source-sink dynamics of gene flow. Although long distance dispersal was relatively frequent, most effective pollen flow occurred over short distances (<100 m). This resulted in a significantly modular structure of the mating network, yielding higher gene flow among nearby fragments. Limited mouse acorn hoarding activity had a strong impact on landscape connectivity, decreasing male gametic immigration rates into forest patches by one order of magnitude Besides, our results show that big forest fragments (>10 ha) are the main pollen sources, while small ones (<1 ha) are important pollen sinks. Thus, big fragments are critical to maintain functional connectivity, while small forest fragments may provide acorn crops better representing regional genetic diversity. In addition to area effects, less isolated and more central fragments showed higher migration rates and exchanged effective pollen with more fragments. Hence, we expected that landscapes with uniform or clumped distribution of big forest fragments would show optimal connectivity traits. However, despite that simulated gene flow was more evenly distributed across the landscape, connectance and migration rates decreased. Our results call for caution before translating patch-level management guidelines to the landscape scale. They also show that the level of functional connectivity may change throughout the recruitment process, suggesting that large-scale conservation strategies may fail if local effective seed establishment is disregarded.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Forest Fragmentation
dc.subject
Mating Network
dc.subject
Pollen Dispersal
dc.subject
Quercus Ilex
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Seed Dispersal
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Determinants of functional connectivity of holm oak woodlands: Fragment size and mouse foraging behavior
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-02-12T16:55:35Z
dc.journal.volume
368
dc.journal.pagination
111-122
dc.journal.pais
Países Bajos
dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Morán López, Teresa. Consejo Superior de Investigaciones Cientificas. Museo Nacional de Ciencias Naturales; España
dc.description.fil
Fil: Robledo Arnuncio, Juan José. Centro de Investigación Forestal; España
dc.description.fil
Fil: Díaz, Mario. Consejo Superior de Investigaciones Cientificas. Museo Nacional de Ciencias Naturales; España
dc.description.fil
Fil: Morales, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en Biodiversidad y Medioambiente; Argentina
dc.description.fil
Fil: Lázaro Nogal, Ana. Centro de Investigación Forestal; España
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Fil: Lorenzo, Zaida. Centro de Investigación Forestal; España
dc.description.fil
Fil: Valladares, Fernando. Consejo Superior de Investigaciones Cientificas. Museo Nacional de Ciencias Naturales; España
dc.journal.title
Forest Ecology and Management
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.foreco.2016.03.010
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S037811271630069X
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