Results 91 to 100 of about 3,647 (182)

Annual survival estimation of migratory songbirds confounded by incomplete breeding site-fidelity: study designs that may help [PDF]

open access: yesAnimal Biodiversity and Conservation, 2004
Many species of bird exhibit varying degrees of site–fidelity to the previous year’s territory or breeding area, a phenomenon we refer to as incomplete breeding site–fidelity. If the territory they occupy is located beyond the bounds of the study area or
Marshall, M. R.   +3 more
doaj  

Methodological advances [PDF]

open access: yes, 2004
The study of population dynamics has long depended on methodological progress. Among many striking examples, continuous time models for populations structured in age (Sharpe & Lotka, 1911) were made possible by progress in the mathematics of integral ...
Lebreton, J.-D., Pollock, K. H.
core  

State space and movement specification in open population spatial capture-recapture models. [PDF]

open access: yes, 2018
With continued global changes, such as climate change, biodiversity loss, and habitat fragmentation, the need for assessment of long-term population dynamics and population monitoring of threatened species is growing.
Borchers   +43 more
core   +1 more source

Loglinear Models for Capture-Recapture Experiments on Open Populations [PDF]

open access: yes, 1980
25 pages, 1 article*Loglinear Models for Capture-Recapture Experiments on Open Populations* (Cormack, R.
Cormack, R. M.   +3 more
core  

Demography of Microtus pennsylvanicus in Southern Ontario: enumeration versus Jolly–Seber estimation compared [PDF]

open access: yesCanadian Journal of Zoology, 1985
A meadow vole population near Toronto went through a cycle in numbers from July 1978 to May 1982. The population never reached a density less than 96 voles/ha or greater than 630 voles/ha. Jolly–Seber estimates differed from total enumeration counts by an average of 10.6% in population size and by less than 0.03 per 2 weeks in survival rates for ...
openaire   +1 more source

Contrasting abundance and residency patterns of two sympatric populations of transient killer whales (Orcinus orca) in the northern Gulf of Alaska [PDF]

open access: yes, 2012
Two sympatric populations of “transient” (mammal-eating) killer whales were photo-identified over 27 years (1984–2010) in Prince William Sound and Kenai Fjords, coastal waters of the northern Gulf of Alaska (GOA).
Andrews, Russel D.   +6 more
core  

Age‐specific survival of reintroduced swift fox in Badlands National Park and surrounding lands

open access: yesWildlife Society Bulletin, 2016
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

Incorporating telemetry information into capture‐recapture analyses improves precision and accuracy of abundance estimates given spatiotemporally biased recapture effort

open access: yesMethods in Ecology and Evolution
Natural populations that are rare, cryptic or inaccessible provide a monumental challenge to monitoring, as adequate data are extremely difficult to collect. Surveys often encompass only a small portion of a population's range due to difficult terrain or
Janelle J. Badger   +6 more
doaj   +1 more source

Estudio de captura masiva como método de control de monochamus galloprovincialis (Olivier; Col.:Cerambycidae) en densidades poblacionales bajas [PDF]

open access: yes, 2019
Monochamus galloprovincialis (Olivier; Col.: Cerambycidae) es el insecto vector del nematodo Bursaphelenchus xylophilus (Steiner & Bührer) Nickle (Nematoda: Aphelenchoididae) causante de la enfermedad del “marchitamiento del pino” (EMP) que afecta a ...
Sánchez Husillos, Estela
core   +1 more source

Fin whale survival and abundance in the Gulf of St. Lawrence, Canada

open access: yesEndangered Species Research, 2014
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

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