Search results for "natal dispersal"
showing 3 items of 3 documents
Onset of natal dispersal in Peregrine Falcon from Mediterranean islands (Italy)
2018
Abstract Basic information on natal dispersal of Peregrine Falcons is virtually lacking in Europe, despite increased attention on this species, and the sensitivity of this stage in the Peregrines’ life history. In this study, we collected satellite telemetry data during the onset of natal dispersal of 19 Peregrine Falcons tagged in Sicily and the Aeolian archipelago (Italy). We divided the onset of dispersal into the following 3 periods: post-fledging dependence period (PFDP), wandering, and wintering. PFDP lasted on average 47±16 days, during which young peregrines moved very little (0.167 km), and explored small areas (0.226 km2) far from the nest cliff, and showed no sex differences. The…
First evidence by satellite telemetry of lanner falcon's falco biarmicus feldeggii natal dispersal outside sicily, and a review of existing data
2019
The Italian population of the threatened European Lanner Falcon is mainly sedentary. Thanks to satellite telemetry, we recorded the first evidence on natal dispersal of a juvenile male (Falc36) outside Sicily. Falc36 was deployed with a GPS-GSM device in May 2017, after an initial phase of movements close to the natal cliff and of short wandering in Sicily crossed the Messina Strait in mid July and arrived in Apulia (south Italy). There we were able to follow his displacements and settling until the end of November when the transmitter broke up. Falc36 used mainly open habitats composed of arable field and heterogeneous agricultural areas firstly north of Altamura and Gravina, and from late…
Low but contrasting neutral genetic differentiation shaped by winter temperature in European great tits.
2016
Gene flow is usually thought to reduce genetic divergence and impede local adaptation by homogenising gene pools between populations. However, evidence for local adaptation and phenotypic differentiation in highly mobile species, experiencing high levels of gene flow, is emerging. Assessing population genetic structure at different spatial scales is thus a crucial step towards understanding mechanisms underlying intraspecific differentiation and diversification. Here, we studied the population genetic structure of a highly mobile species - the great tit Parus major - at different spatial scales. We analysed 884 individuals from 30 sites across Europe including 10 close-by sites (< 50 km), u…