Can interspecific competition and nest site availability explain the decrease of lesser kestrel Falco naumanni populations?
نویسندگان
چکیده
منابع مشابه
Is nest-site availability limiting Lesser Kestrel populations? A multiple scale approach
The Lesser Kestrel, a colonial migratory falcon, is one of the most endangered birds in Europe and, due to a sharp population decline across much of the breeding range, is globally threatened. The reasons for this decline are unclear, but reduced nest-site availability might be a major cause. To test this hypothesis we looked at nest-site availability within Portuguese colonies in rural and urb...
متن کاملExtensive polymorphism and geographical variation at a positively selected MHC class II B gene of the lesser kestrel (Falco naumanni).
Understanding the selective forces that shape genetic variation in natural populations remains a high priority in evolutionary biology. Genes at the major histocompatibility complex (MHC) have become excellent models for the investigation of adaptive variation and natural selection because of their crucial role in fighting off pathogens. Here we present one of the first data sets examining patt...
متن کاملCharacteristics of loci and individuals are associated with germline microsatellite mutation rates in lesser kestrels (Falco naumanni).
Although microsatellites are one of the most popular tools in genetic studies, their mutational dynamics and evolution remain unclear. Here, we apply extensive pedigree genotyping to identify and analyze the patterns and factors associated with de novo germline mutations across nine microsatellite loci in a wild population of lesser kestrels (Falco naumanni). A total of 10 germline mutations ev...
متن کاملPhilopatry , dispersal patterns and nest - site reuse in Lesser Grey
To nest in the same breeding area, territory or even nest-site in successive years may provide a possibility to look at mechanisms involved in breeding habitat selection and could also be an important tool for conservation, management and restoration attempts. In this study we examine site fidelity towards the breeding area as well as the nesting site in a dense and stable population of the Les...
متن کاملPredatory Identity Can Explain Nest Predation Patterns
Knowledge of dominant predators is necessary to identifY predation patterns and mitigate losses to nest predation, especially for endangered songbirds. We monitored songbird nests with timelapse infrared video cameras at Fort Hood Military Reservation, Texas, from 1997 to 2002 and 2005, and in Austin, Texas, during 2005, 2006, 2008, and 2009. Predation was the most common source of nest failure...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Biological Conservation
سال: 1996
ISSN: 0006-3207
DOI: 10.1016/s0006-3207(96)00011-0