Ron Efrat
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View article: Egyptian Nightjars are residents in the Dead Sea region, showing a high year-round roost fidelity
Egyptian Nightjars are residents in the Dead Sea region, showing a high year-round roost fidelity Open
We investigated the spatial behavior of a recently discovered breeding population of Egyptian Nightjars ( Caprimulgus aegyptius ) near the Dead Sea. While there is a prevalent migratory tendency in other populations of this species, it is …
View article: Age-dependent response to anthropogenic habitat during migration of an endangered raptor
Age-dependent response to anthropogenic habitat during migration of an endangered raptor Open
Decisions made by migrating animals can impact individual fitness and population dynamics.1,2 For avian migrants, these decisions can be affected by environmental3,4,5,6,7 and anthropogenic8,9,10,11,12 factors and by internal13,14,15,16,17…
View article: The first record in Crimea Peninsula of a Griffon Vulture <i>Gyps fulvus</i> ringed in Israel
The first record in Crimea Peninsula of a Griffon Vulture <i>Gyps fulvus</i> ringed in Israel Open
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View article: Evolutionarily distinct lineages of a migratory bird of prey show divergent responses to climate change
Evolutionarily distinct lineages of a migratory bird of prey show divergent responses to climate change Open
Accurately predicting species’ responses to anthropogenic climate change is hampered by limited knowledge of their spatiotemporal ecological and evolutionary dynamics. We combine landscape genomics, demographic reconstructions, and species…
View article: Behavioral plasticity shapes population aging patterns in a long-lived avian scavenger
Behavioral plasticity shapes population aging patterns in a long-lived avian scavenger Open
Studying the mechanisms shaping age-related changes in behavior (“behavioral aging”) is important for understanding population dynamics in our changing world. Yet, studies that capture within-individual behavioral changes in wild populatio…
View article: Behavioural plasticity shapes population ageing patterns
Behavioural plasticity shapes population ageing patterns Open
Studying the mechanisms shaping age-related changes in behaviour ("behavioural ageing") is important for understanding population dynamics in our changing world. Yet, studies that capture within-individual behavioural changes in wild popul…
View article: A telemetry study shows that an endangered nocturnal avian species roosts in extremely dry habitats to avoid predation
A telemetry study shows that an endangered nocturnal avian species roosts in extremely dry habitats to avoid predation Open
Describing animal space use is essential for understanding their ecological needs and for planning effective conservation schemes. Notably, certain biomes and life histories are understudied due to methodological challenges in tracking ani…
View article: Time constraints may pace the ontogeny of movement behaviour
Time constraints may pace the ontogeny of movement behaviour Open
During early development, juvenile animals need to acquire a diverse behavioural repertoire to interact with their environment. The ontogeny of animal behaviour, is paced by the motivation to improve, e.g. internal clocks, and limited by e…
View article: Assessing genetic diversity patterns at neutral and adaptive loci to inform population reinforcement of an endangered migratory vulture
Assessing genetic diversity patterns at neutral and adaptive loci to inform population reinforcement of an endangered migratory vulture Open
One of the primary goals of conservation translocation programs should be the maintenance of both population demographic stability and genetic diversity. Here, we provide genetic management recommendations to inform a population reinforcem…
View article: Differential survival throughout the full annual cycle of a migratory bird presents a life‐history trade‐off
Differential survival throughout the full annual cycle of a migratory bird presents a life‐history trade‐off Open
Long‐distance migrations are among the most physically demanding feats animals perform. Understanding the potential costs and benefits of such behaviour is a fundamental question in ecology and evolution. A hypothetical cost of migration s…
View article: Determinants of survival in captive‐bred Griffon Vultures <scp> <i>Gyps fulvus</i> </scp> after their release to the wild
Determinants of survival in captive‐bred Griffon Vultures <span> <i>Gyps fulvus</i> </span> after their release to the wild Open
Conservation translocations are a wide‐spread tool commonly used to prevent the extinction of species locally and globally. However, conservation translocations are complicated operations which often fail, especially when they involve the …
View article: Spatial and Temporal Variability in Migration of a Soaring Raptor Across Three Continents
Spatial and Temporal Variability in Migration of a Soaring Raptor Across Three Continents Open
Disentangling individual- and population-level variation in migratory movements is necessary for understanding migration at the species level. However, very few studies have analyzed these patterns across large portions of species' distrib…
View article: Landscape‐dependent time versus energy optimizations in pelicans migrating through a large ecological barrier
Landscape‐dependent time versus energy optimizations in pelicans migrating through a large ecological barrier Open
During migration, birds are often forced to cross ecological barriers, facing challenges due to scarcity of resources and suitable habitats. While crossing such barriers, birds are expected to adjust their behaviour to reduce time, energy …
View article: Unravelling migration connectivity reveals unsustainable hunting of the declining ortolan bunting
Unravelling migration connectivity reveals unsustainable hunting of the declining ortolan bunting Open
Targeting bird migration connectivity adressed a pressing conservation policy question to save ortolan buntings.
View article: Genetic structure of a patchily distributed philopatric migrant: implications for management and conservation
Genetic structure of a patchily distributed philopatric migrant: implications for management and conservation Open
Significant demographic fluctuations can have major genetic consequences in wild populations. The lesser kestrel (Falco naumanni) has suffered both population declines and range fragmentation during the second half of the 20th century. In …
View article: Genetic structure of a patchily distributed philopatric migrant: implications for management and conservation
Genetic structure of a patchily distributed philopatric migrant: implications for management and conservation Open
Significant demographic fluctuations can have major genetic consequences in wild populations. The Lesser Kestrel ( Falco naumanni ) has suffered from both population declines and range fragmentation during the second half of the 20th centu…