4 documents found, page 1 of 1
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...
Carryover effects of long-distance avian migration are weaker than effects of b...
Buchan, Claire; Gilroy, James J.; Catry, Inês; Bustamante, Javier; Marca, Alina D.; Atkinson, Philip W.; González, Juan Miguel; Franco, Aldina M.A.Migration may expose individuals to a wide range of increasing anthropogenic threats. In addition to direct mortality effects, this exposure may influence post-migratory reproductive fitness. Partial migration—where a population comprises migrants and residents—represents a powerful opportunity to explore carryover effects of migration. Studies of partial migration in birds typically examine short-distance syst...
Fitness consequences of different migratory strategies in partially migratory p...
Buchan, Claire; Gilroy, James J.; Catry, Inês; Franco, Aldina M.A.1. Partial migration—wherein migratory and non-migratory individuals exist within the same population—represents a behavioural dimorphism; for it to persist over time, both strategies should yield equal individual fitness. This balance may be maintained through trade-offs where migrants gain survival benefits by avoiding unfavourable conditions, while residents gain breeding benefits from early access to resour...