Results 61 to 70 of about 13,875,303 (177)
Seabirds play key ecological roles but face increasing threats worldwide. Among them, Tītī (Sooty Shearwater) Ardenna grisea are among the most abundant and culturally significant species in the Southern Hemisphere but are also threatened. Kapiti Island, Aotearoa (New Zealand), holds a Tītī colony which, despite eradication of non‐native mammalian ...
Etienne Ossona De Mendez +7 more
wiley +1 more source
Age‐specific survival of reintroduced swift fox in Badlands National Park and surrounding lands
In 2003, a reintroduction program was initiated at Badlands National Park (BNP), South Dakota, USA, with swift foxes (Vulpes velox) translocated from Colorado and Wyoming, USA, as part of a restoration effort to recover declining swift fox populations ...
Indrani Sasmal +3 more
doaj +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
First Direct Evidence for Natal Wintering Ground Fidelity and Estimate of Juvenile Survival in the New Zealand Southern Right Whale Eubalaena australis. [PDF]
Juvenile survival and recruitment can be more sensitive to environmental, ecological and anthropogenic factors than adult survival, influencing population-level processes like recruitment and growth rate in long-lived, iteroparous species such as ...
E L Carroll +5 more
doaj +1 more source
Flatback turtles Natator depressus are endemic to Australia and Papua New Guineaís tropical oceans and, although the species has an extensive distribution around northern Australia, there are few published long-term abundance trends of nesting ...
Groom, RA, Griffiths, AD, Chaloupka, M
doaj +1 more source
Survival and abundance of polar bears in Alaska’s Beaufort Sea, 2001–2016
The Arctic Ocean is undergoing rapid transformation toward a seasonally ice‐free ecosystem. As ice‐adapted apex predators, polar bears (Ursus maritimus) are challenged to cope with ongoing habitat degradation and changes in their prey base driven by food‐
Jeffrey F. Bromaghin +4 more
doaj +1 more source
High and minimally variable adult marine survival among multiple stocks of Chinook salmon
Abstract Estimates of individual survival across space and time provide critical information on processes that regulate population abundance. Here, we use state‐space models fit to data from more than 500 acoustically tagged Chinook salmon to better understand the factors that shape survival during the final summer and fall of marine residence—a life ...
Cameron Freshwater +6 more
wiley +1 more source
Amphibian populations are declining globally. In this scenario, detailed information on their ecology is crucial to determine the status and extinction risk of their populations and, therefore, better plan conservation activities.
MA Velasco +7 more
doaj +1 more source
Wildlife pedigrees provide insights into ecological and evolutionary processes. DNA obtained from noninvasively collected hair is often used to determine individual identities for pedigrees and other genetic analyses.
Melissa J. Reynolds‐Hogland +5 more
doaj +1 more source
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

