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dc.contributor.authorDelgado, María del Mar-
dc.contributor.authorPenteriani, Vincenzo-
dc.contributor.authorRevilla, Eloy-
dc.contributor.authorNams, Vilis O.-
dc.date.accessioned2012-06-20T09:32:24Z-
dc.date.available2012-06-20T09:32:24Z-
dc.date.issued2010-
dc.identifier.citationJournal of Animal Ecology, 79, 620–632 (2010)es_ES
dc.identifier.urihttp://hdl.handle.net/10261/51896-
dc.description.abstract1. Natal dispersal has the potential to affect most ecological and evolutionary processes. However, despite its importance, this complex ecological process still represents a significant gap in our understanding of animal ecology due to both the lack of empirical data and the intrinsic complex- ity of dispersal dynamics. 2. By studying natal dispersal of 74 radiotagged juvenile eagle owls Bubo bubo (Linnaeus), in both the wandering and the settlement phases, we empirically addressed the complex interactions by which individual phenotypic traits and external cues jointly shape individual heterogeneity through the different phases of dispersal, both at nightly and weekly temporal scales. 3. Owls in poorer physical conditions travelled shorter total distances during the wandering phase, describing straighter paths and moving slower, especially when crossing heterogeneous habitats. In general, the owls in worse condition started dispersal later and took longer times to find further settlement areas. Net distances were also sex biased, with females settling at further distances. Dis- persing individuals did not seem to explore wandering and settlement areas by using a search image of their natal surroundings. Eagle owls showed a heterogeneous pattern of patch occupancy, where few patches were highly visited by different owls whereas the majority were visited by just one indi- vidual. During dispersal, the routes followed by owls were an intermediate solution between opti- mized and randomized ones. Finally, dispersal direction had a marked directionality, largely influenced by dominant winds. These results suggest an asymmetric and anisotropic dispersal pat- tern, where not only the number of patches but also their functions can affect population viability. 4. The combination of the information coming from the relationships among a large set of factors acting and integrating at different spatial and temporal scales, under the perspective of heteroge- neous life histories, are a fruitful ground for future understanding of natal dispersales_ES
dc.language.isoenges_ES
dc.publisherBritish Ecological Societyes_ES
dc.rightsopenAccesses_ES
dc.subjectAnimal movementses_ES
dc.subjectdispersal behavioures_ES
dc.subjectdispersal conditiones_ES
dc.subjectdependentes_ES
dc.subjecteagle owles_ES
dc.subjectspatial networkses_ES
dc.titleThe effect of phenotypic traits and external cues on natal dispersal movementses_ES
dc.typeArtículoes_ES
dc.identifier.doi10.1111/j.1365-2656.2009.01655.x-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1111/j.1365-2656.2009.01655.xes_ES
Appears in Collections:(EBD) Comunicaciones congresos
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