4 documents found, page 1 of 1
Fitness, behavioral, and energetic trade-offs of different migratory strategies...
Soriano-Redondo, Andrea; Franco, Aldina M. A.; Acácio, Marta; Payo-Payo, Ana; Martins, Bruno Herlander; Moreira, Francisco; Catry, InêsAlternative migratory strategies can coexist within animal populations and species. Anthropogenic impacts can shift the fitness balance between these strategies leading to changes in migratory behaviors. Yet some of the mecha- nisms that drive such changes remain poorly understood. Here we investigate the phenotypic differences, and the energetic, behavioral, and fitness trade-offs associated with four differen...
Combining remote sensing and tracking data to quantify species' cumulative expo...
Buchan, Claire; Gilroy, James J.; Catry, Inês; Hewson, Chris M.; Atkinson, Philip W.; Franco, Aldina M. A.Identifying when and where organisms are exposed to anthropogenic change is cru-cial for diagnosing the drivers of biodiversity declines and implementing effective conservation measures. Accurately measuring individual-scale exposure to anthro-pogenic impacts across the annual cycle as they move across continents requires an approach that is both spatially and temporally explicit—now achievable through recent p...
Combining bird tracking data with high-resolution thermal mapping to identify m...
Ramos, Rita F.; Franco, Aldina M. A.; Gilroy, James J.; Silva, João P.Elevated temperatures can have a range of fitness impacts, including high metabolic cost of thermoregulation, hence access to microclimate refugia may buffer individuals against exposure to high temperatures. However, studies examining the use of microclimate refugia, remain scarce. We combined high resolution microclimate modelling with GPS tracking data as a novel approach to identify the use and availability...
Individual variation in migratory movements and winter behaviour of Iberian Les...
Catry, Inês; Dias, Maria P.; Catry, Teresa; Afanasyev, Vsevolod; Fox, James; Franco, Aldina M. A.; Shutherland, William J.The population decline of the Lesser Kestrel Falco naumanni has been the subject of studies across its Western Palaearctic breeding range, but little is known about its use of pre-migratory areas or African wintering quarters. We used geolocators to describe the temporal and spatial patterns of Portuguese Lesser Kestrel migration and wintering behaviour. Data on the complete migration were obtained from four in...