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dc.creatorJuárez Jovel, Roselvy
dc.creatorChacón Madrigal, Eduardo
dc.creatorSandoval Vargas, Luis Andrés
dc.date.accessioned2023-03-22T20:20:41Z
dc.date.available2023-03-22T20:20:41Z
dc.date.issued2020-04-28
dc.identifier.citationhttps://link.springer.com/article/10.1186/s40657-020-00198-6es_ES
dc.identifier.issn2053-7166
dc.identifier.urihttps://hdl.handle.net/10669/88387
dc.description.abstractBackground: Urban expansion has been identified as one of the leading drivers of biodiversity change or loss. For birds, urbanization is specifically related to survival, breeding success, and territory size. Understanding how different birds adjust territory size in response to urbanization is essential for their conservation in urban environments and to better understand why some species are lost and others persist under this condition. We evaluated the effect of urbanization on the territory size of an urban avoider species, White-eared Ground-Sparrow (Melozone leucotis), and an urban adapter species, House Wren (Troglodytes aedon), at five Costa Rican sites. Methods: We measured the size of 30 ground-sparrow and 28 wren territories using a total of 296 h of observation. We followed each individual for at least 1 h per day for at least 2 days of two consecutive years, and geo-referenced their locations. Territory size was estimated using the minimum convex polygon method. We measured the urban surfaces (roads, buildings, any other paved area, soccer fields, lawns, and gardens with short grass) within territories. Results: Ground-sparrow territories were larger at the highly urbanized site than at the non-urbanized site. Wren territories were larger at the low urbanized site than at the highly urbanized site. We found a positive relationship between urban surface and territory size for the ground-sparrow, but not for the wren. Conclusions: Our results showed that not all birds adjust territory size in the same way in response to urbanization. We showed that urban avoiders probably need to defend larger territories in urban environments to find all the resources required to survive because urban environments may provide insufficient resources such as food or shelter. Urban adapters on the other hand defend smaller territories in urban environments because even small territories may provide sufficient resources. These results suggest specific behavioral adaptations developed by Neotropical birds inhabiting urban environments.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[111-B5-241]/UCR/Costa Ricaes_ES
dc.language.isoenges_ES
dc.sourceAvian Research, Vol.11(11), pp. 1-9es_ES
dc.subjectHouse Wrenes_ES
dc.subjectMelozone leucotises_ES
dc.subjectTroglodytes aedones_ES
dc.subjectUrban adapteres_ES
dc.subjectUrban avoideres_ES
dc.subjectUrban–rural gradientes_ES
dc.subjectTerritory sizees_ES
dc.subjectWhite-eared Ground-Sparrowes_ES
dc.subjectBIRDSes_ES
dc.subjectBIOLOGYes_ES
dc.titleUrbanization has opposite effects on the territory size of two passerine birdses_ES
dc.typeartículo originales_ES
dc.identifier.doi10.1186/s40657-020-00198-6
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biologíaes_ES
dc.identifier.codproyecto111-B5-241


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