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dc.contributor.authorRamírez, Franciscoes_ES
dc.contributor.authorAfán, Isabeles_ES
dc.contributor.authorBouten, Willemes_ES
dc.contributor.authorCarrasco, Josep L.es_ES
dc.contributor.authorForero,Manuela G.es_ES
dc.contributor.authorNavarro, Joanes_ES
dc.identifier.citationEcology and Evolution, 1-10 (2020)es_ES
dc.description.abstractResearch focused on evaluating how human food subsidies influence the foraging ecology of scavenger species is scarce but essential for elucidating their role in shaping behavioral patterns, population dynamics, and potential impacts on ecosystems. We evaluate the potential role of humans in shaping the year-round distribution and habitat use of individuals from a typical scavenger species, the yellow-legged gull (Larus michahellis), breeding at southwestern Spain. To do this, we combined longterm, nearly continuous GPS-tracking data with spatially explicit information on habitat types and distribution of human facilities, as proxied by satellite imagery of artificial night lights. Overall, individuals were mainly associated with freshwater habitats (mean proportion, 95% CI: 40.6%, 36.9%–44.4%) followed by the marinerelated systems (40.3, 37.7%–42.8%), human-related habitats (13.5%, 13.2%–13.8%), and terrestrial systems (5.5%, 4.6%–6.5%). However, these relative contributions to the overall habitat usage largely changed throughout the annual cycle as a likely response to ecological/physiological constraints imposed by varying energy budgets and environmental constraints resulting from fluctuations in the availability of food resources. Moreover, the tight overlap between the year-round spatial distribution of gulls and that of human facilities suggested that the different resources individuals relied on were likely of anthropogenic origin. We therefore provide evidence supporting the high dependence of this species on human-related food resources throughout the annual cycle. Owing to the ability of individuals to disperse and reach transboundary areas of Spain, Portugal, or Morocco, international joint efforts aimed at restricting the availability of human food resources would be required to manage this overabundant species and the associated consequences for biodiversity conservation (e.g., competitive exclusion of co-occurring species) and human interests (e.g., airports or disease transmission).es_ES
dc.relationMINECO/ICTI2013-2016/IJCI-2015-24531 and RYC- 2015-1780es_ES
dc.relation.isversionofPublisher's versiones_ES
dc.subjectArtificial night lightses_ES
dc.subjectCompositional analyseses_ES
dc.subjectGPS trackinges_ES
dc.subjectSouthwester Spaines_ES
dc.subjectYellow-legged gulles_ES
dc.titleHumans shape the year-round distribution and habitat use of an opportunistic scavengeres_ES
dc.description.peerreviewedPeer reviewedes_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
oprm.item.hasRevisionno ko 0 false*
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