Results 151 to 160 of about 2,172,240 (241)
Structure and dynamics of the Gulf of Maine humpback whale population
, 2007 Population structure and vital rates of Gulf of Maine (GOM) humpback whales, Megaptera novaeangliae, were studied by a combination of longitudinal data, region-wide surveys and modern mark-recapture statistical methods.
Robbins, J.
core
Wildlife Biology, EarlyView.Estimating prey species densities is critical for implementing effective tiger Panthera tigris recovery strategies. Several statistical models exist for density estimation of unmarked species from camera trap data, all of which rely on the random placement of cameras.
Beno Fariza Syahri +10 more
wiley +1 more source
Quantification of human‐caused mortality in an imperiled turtle
Wildlife Biology, EarlyView.For many threatened and endangered species, the importance of human‐caused mortality relative to other sources has not been quantified, making it difficult to assess the effectiveness of mortality‐reduction strategies. We used radio telemetry data, pooled across studies at protected sites in the US states of Illinois and Wisconsin, to estimate natural ...
Richard B. King +20 more
wiley +1 more source
Wildlife Letters, EarlyView.Using radiotelemetry, we found that the movement and home range of the endangered Sacalia bealei varied significantly across reproductive classes and seasons, with males exhibiting greater movement than females during wet and mating seasons. The species exhibits strong aquatic dependence, favoring deep pools interspaced among riffle‐pool sequences ...
Wing Sing Chan +3 more
wiley +1 more source
Estimating Leopard population sizes in western Mozambique using SNP-based capture-mark-recapture models. [PDF]
J MammalForbes RE +4 more
europepmc +1 more source
Wildlife Letters, EarlyView.We used spatially explicit capture‐recapture to estimate jaguar densities in a private reserve in the Colombian Llanos and quantified land cover change in and around the reserve from 2014 to 2024. Densities increased 22% since 2014, while disturbed land cover increased by 39%–54% around the reserve depending on buffer distance. Our study indicates that
Valeria Boron +7 more
wiley +1 more source
Wildlife Society Bulletin, EarlyView.We used drone‐based radiotelemetry and multispectral imagery to estimate detection and survival probabilities of blue‐winged teal broods in Saskatchewan, Canada. Weekly brood survival probabilities, estimated via Cormack‐Jolly‐Seber models, increased with age and were comparable between drone methods.
Grant A. Rhodes +5 more
wiley +1 more source
Wildlife Society Bulletin, EarlyView.Abstract Studies on the earliest life stages are essential to our ecological understanding of avian demography; however, monitoring technologies that allow tracking of small birds are still limited in a variety of ways. One critical limitation, until recently, has been the development of methods for attaching transmitters to young birds with precocial ...
Autumn S. Randall +3 more
wiley +1 more source
Wildlife Society Bulletin, EarlyView.Abstract Many waterfowl species and closely related congeners are shared across the Holarctic, and are culturally and economically important in both North America and Europe. Accordingly, both continents have developed science and management frameworks in an attempt to establish evidence‐based conservation practices for this guild of birds.
Kevin M. Ringelman +7 more
wiley +1 more source
Abundance, trends, and challenges facing mountain goats throughout their North American distribution
Wildlife Society Bulletin, EarlyView.Our survey of states and provinces revealed that 13% of native mountain goat populations increased during the past 10 years, whereas 38% declined. For introduced populations, increases were roughly equal to declines. Rates of change were positively associated with being introduced or pioneering, and negatively associated with heavy snow, and, to a ...
Rich Harris +29 more
wiley +1 more source