Results 21 to 30 of about 44,482 (139)
Non-parallel changes in songbird migration timing are not explained by changes in stopover duration [PDF]
PeerJ, 2020 Shifts in the timing of animal migration are widespread and well-documented; however, the mechanism underlying these changes is largely unknown. In this study, we test the hypothesis that systematic changes in stopover duration—the time that individuals ...
Nicholas N. Dorian +2 more
doaj +2 more sources
Spatially explicit capture-recapture models for relative density. [PDF]
EcologyAbstract Spatially explicit capture–recapture (SECR) methods are used widely to estimate animal population density and related parameters. Maximum likelihood has been applied to two flavors of the SECR model—a full model that includes absolute density as a spatially varying parameter, and a model conditional on the number of detected individuals that ...
Efford MG.
europepmc +2 more sources
Endangered Species Research, 2023 An understanding of the survival probability and abundance of endangered species is critical for their effective conservation and management. In this study, long-term capture-mark-recapture data were used to estimate the apparent survival probability and
K Kameda +4 more
doaj +1 more source
Evaluating wildlife rehabilitation: successful return of rehabilitated gulls to the wildEvaluating wildlife rehabilitation: successful return of rehabilitated gulls to the wild [PDF]
Royal Society Open ScienceThe expansion of human activities has increased the need for animal rehabilitation, especially for urban-breeding species such as herring gulls (Larus argentatus) and lesser black-backed gulls (Larus fuscus), which now commonly nest on buildings and ...
Reinoud Allaert +8 more
doaj +1 more source
Movement Ecology, 2021 Background Over the past two decades, various species of forage fish have been successfully implanted with miniaturized acoustic transmitters and subsequently monitored using stationary acoustic receivers.
Mary A. Bishop, Jordan W. Bernard
doaj +1 more source
Acta Biológica Colombiana, 2014 Pocos estudios demográficos de larga duración han sido realizados en tortugas dulceacuícolas de Suramérica, pese a la necesidad de este tipo de investigación para esclarecer las variaciones naturales y fortalecer procesos de conservación en este grupo ...
Mario Fernando Gárces Restrepo +2 more
doaj +1 more source
Long‐term apparent survival of a cold‐stunned subpopulation of juvenile green turtles
Ecosphere, 2022 Understanding the effects of extreme weather on animal populations is fundamental to ecological and conservation sciences and species management. Climate change has resulted in both warm and cold temperature extremes, including an increased frequency of ...
Robert Mollenhauer +2 more
doaj +1 more source
Endangered Species Research, 2014 We evaluated whether the Indo-Pacific bottlenose dolphins around the fast-developing island of Mayotte are threatened. We used opportunistic photo-identification data and capture-mark-recapture models to estimate key demographic parameters and then ...
C Pusineri +6 more
doaj +1 more source
Population ecology of Chaetophractus vellerosus: the first report for an armadillo in South America
Zoologia (Curitiba), 2017 The aim of this work was to obtain the first estimates of survival rates (S), capture probability (p) and life expectancy for armadillos in South America by analyzing capture-mark-recapture data obtained from a population of Chaetophractus vellerosus ...
Agustín M. Abba +2 more
doaj +1 more source
, 2016 Cormack-Jolly-Seber model estimates of apparent annual survival and 95% confidence intervals (95% CI) for juvenile New Zealand Southern right whales.
N. J. Patenaude (845239) +5 more
core +1 more source