Results 71 to 80 of about 2,297 (144)
Seasonal body mass dynamics mediate life‐history trade‐offs in a hibernating mammal
We tested a suite of ecological hypotheses to explain variation in seasonal body mass dynamics of a fat‐storing mammalian hibernator. We further demonstrated that pre‐hibernation mass gain in ground squirrels mediates an annual allocation trade‐off between current and future reproduction as the squirrels forage and rear young under predation risk ...
Austin Z. T. Allison +4 more
wiley +1 more source
Fin whale survival and abundance in the Gulf of St. Lawrence, Canada
The fin whale Balaenoptera physalus, the second largest species in the animal kingdom to have lived on Earth, was heavily targeted during the industrial whaling era.
C Ramp +4 more
doaj +1 more source
Social networks are tied to population dynamics; interactions are driven by population density and demographic structure, while social relationships can be key determinants of survival and reproductive success.
Matthew J. Silk, Olivier Gimenez
doaj +1 more source
The Eurasian crane (Grus grus), a symbol of conservation success in Europe, has made an impressive recovery. However, our results show that over the study period, juvenile survival declined by almost 30% overall, while sub‐adults experienced a smaller decrease, and adults showed no change.
Morgane Gicquel +22 more
wiley +1 more source
Ensaios de captura-recaptura constituem técnica amostral comumente utilizada para estimar o tamanho e outros componentes da dinâmica de uma população.
José Otaviano de Oliveira +1 more
doaj +1 more source
Survival, density, and abundance of common bottlenose dolphins in Barataria Bay (USA) following the Deepwater Horizon oil spill [PDF]
To assess potential impacts of the Deepwater Horizon oil spill in April 2010, we conducted boat-based photo-identification surveys for common bottlenose dolphins Tursiops truncatus in Barataria Bay, Louisiana, USA (~230 km2, located 167 km WNW of the ...
Hornsby, Fawn E. +8 more
core +2 more sources
Fuzzy logic modelling of snow leopard populations in response to threats from climate change [PDF]
The snow leopard population in Kazakhstan represents a small but important component of the species range, making up around 2.7% of the global range, of which 18,673 km2 lies within protected areas. The most recent population estimate, by Jackson et al. (
Baibagysov, Azim +10 more
core
Capture–recapture (CR) models have been used for decades to estimate population size and demographic rates in natural populations from the monitoring of individuals. One of the most frequent deviations from assumptions required in CR studies is the immediate trap‐dependence that corresponds to the correlation between capture events. We review empirical
Jessica Cachelou +4 more
wiley +1 more source
ABSTRACT Aim Site network approaches to waterbird conservation are easily biased towards species that occur in high densities and locations and periods of the annual cycle with dense concentrations of birds, thereby potentially failing to address underlying factors driving certain population declines.
Benjamin J. Lagassé +7 more
wiley +1 more source

