Encontrados 19 documentos, a visualizar página 1 de 2
Connectivity between countries established by landbirds and raptors migrating a...
Guilherme, João L.; Jones, Victoria R.; Catry, Inês; Beal, Martin; Dias, Maria P.; Oppel, Steffen; Vickery, Juliet A.; Hewson, Chris M.The conservation of long-distance migratory birds requires coordination between the multiple countries connected by the movements of these species. The recent expansion of tracking studies is shedding new light on these movements, but much of this information is fragmented and inaccessible to conservation practitioners and policy makers. We synthesized current knowledge on the connectivity established between c...
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...
Connectivity between countries established by landbirds and raptors migrating a...
Guilherme, João L.; Jones, Victoria R.; Catry, Inês; Beal, Martin; Dias, Maria P.; Oppel, Steffen; Vickery, Juliet A.; Hewson, Chris; Butchart, StuartThe conservation of long-distance migratory birds requires coordination between the multiple countries connected by the movements of these species. The recent expansion of tracking studies is shedding new light on these movements, but much of this information is fragmented and inaccessible to conservation practitioners and policy makers.We synthesized current knowledge on the connectivity established between co...
Antipredator benefits of heterospecific colonial breeding for a predominantly s...
Gameiro, João; Franco, Aldina M.A.; Catry, Teresa; M. Palmeirim, Jorge; Catry, InêsPredation risk profoundly shapes how animals behave and is one of the main forces driving the formation or maintenance of groups. For some species, group living may be facultative, and individuals may live solitarily or aggregate with conspecifics or heterospecifics, but the advantages of each strategy are still poorly known. Here, we investigated whether a predominantly solitary breeding species, the European ...
High trophic niche overlap in mixed‐species colonies using artificial nests
Gameiro, João; Catry, Teresa; Marcelino, Joana; Franco, Aldina M.A.; M. Palmeirim, Jorge; Catry, InêsAlthough successful at recovering endangered populations, conservation actions based on nest provisioning seldom consider how they shape the composition of communities and alter interspecific interactions. Specifically, the extent to which dietary overlap within these communities may affect the conservation of target species has rarely been assessed. In Southern Europe, sites of large-scale nest-site provisioni...
Connectivity between countries established by landbirds and raptors migrating a...
Guilherme, João L.; Jones, Victoria R.; Catry, Inês; Beal, Martin; Dias, Maria P.; Oppel, Steffen; Vickery, Juliet A.; Hewson, Chris; Butchart, StuartFundação para a Ciência e Tecnologia - FCT; The conservation of long-distance migratory birds requires coordination between the mul-tiple countries connected by the movements of these species. The recent expansion oftracking studies is shedding new light on these movements, but much of this informationis fragmented and inaccessible to conservation practitioners and policy makers. We synthe-sized current knowled...
Influence of colony traits on ectoparasite infestation in birds breeding in mix...
Gameiro, João; Veiga, Jesús; Valera, Francisco; M. Palmeirim, Jorge; Catry, InêsColoniality in birds is often associated with an increase in parasite burden, but whether the co-occurrence of several host species influences the prevalence and abundance of ectoparasites and their relationship with colony size or density remains poorly known. Here, we studied mixed-species breeding colonies formed after the provision of artificial breeding structures for restoring the lesser kestrel (Falco na...
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...
track2KBA: An R package for identifying important sites for biodiversity from t...
Beal, Martin; Oppel, Steffen; Handley, Jonathan; Pearmain, Elizabeth J.; Pujol, Virginia Morera; Carneiro, Ana P. B.; Davies, TammyAbstract 1. Identifying important sites for biodiversity is vital for conservation and management. However, there is a lack of accessible, easily applied tools that enable practitioners to delineate important sites for highly mobile species using established criteria. 2. We introduce the R package ‘track2KBA’, a tool to identify important sites at the population level using tracking data from individual animals...
Long-term persistence of conservation-reliant species: Challenges and opportuni...
Gameiro, João; Franco, Aldina M.A.; Catry, Teresa; Palmeirim, Jorge; Catry, Inês“Conservation-reliant species” – those fully dependent on continued management actions – are booming and, with limited conservation budgets, securing funds to sustain their long-term viability is becoming overwhelming. This study assesses the degree of dependence on conservation actions of two obligatory cavity-nesters, the Lesser Kestrel Falco naumanni and the European Roller Coracias garrulus, whose populatio...