Results 61 to 70 of about 2,239 (165)

Modelos jerárquicos de marcaje–recaptura: un marco para la inferencia de procesos demográficos [PDF]

, 2004
The development of sophisticated mark–recapture models over the last four decades has provided fundamental tools for the study of wildlife populations, allowing reliable inference about population sizes and demographic rates based on clearly formulated ...
Barker, R. J., Link, W. A.
core  

Challenges and opportunities for monitoring wild Nile crocodiles with scute mark-recapture photography

Koedoe: African Protected Area Conservation and Science, 2018
The global conservation status of Nile crocodiles (Crocodylus niloticus) was last assessed in 1996. The species presents particular difficulty in monitoring because it can be cryptic, require expertise to handle, and caudal tail tags and transmitters are
Bernard W.T. Coetzee, Sam M. Ferreira, Kristine Maciejewski   +2 more
doaj   +1 more source

Population dynamics of Townsend's big‐eared bats: effect of age and drought on survival

The Journal of Wildlife Management, Volume 90, Issue 4, May 2026.
We estimated age‐specific yearly survival of female Townsend's big‐eared bats in Inyo and Mono Counties, California. We found that both juvenile and adult survival were negatively impacted by drought, and that detection probability was lower for hand‐recapture than for bats detected via pass‐through antenna arrays.
Natalie M. Hamilton, Rebekah E. Ruzicka, Jessica E. Light, Michael L. Morrison   +3 more
wiley   +1 more source

Status and population dynamics of the Critically Endangered Valcheta frog Pleurodema somuncurense on the Patagonian Somuncura Plateau

Endangered Species Research, 2019
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, I Berkunsky, MS Akmentins, CA Kass, ML Arellano, TM Aguirre, JD Williams, FP Kacoliris   +7 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]

PLoS ONE, 2016
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, R M Fewster, S J Childerhouse, N J Patenaude, L Boren, C S Baker   +5 more
doaj   +1 more source

The average laboratory samples a population of 7,300 Amazon Mechanical Turk workers [PDF]

, 2015
Using capture-recapture analysis we estimate the effective size of the active Amazon Mechanical Turk (MTurk) population that a typical laboratory can access to be about 7,300 workers.
Bartels, Daniel M., Chandler, Jesse, Harris, Adam J. L., Newell, Benjamin R., Paolacci, Gabriele, Stewart, Neil, Ungemach, Christoph   +6 more
core   +2 more sources

Multi‐event modeling of Hector's dolphin (Cephalorhynchus hectori) fecundity using four decades of monitoring: Implications for current management of bycatch

Conservation Science and Practice, Volume 8, Issue 4, April 2026.
Updated estimate of fecundity for Hector's dolphin is lower and more precise than prior estimation. This latest estimate suggests a lower capacity for population growth than previously thought and a reduced resilience to anthropogenic threats. Abstract Prediction of future population trajectories is vital in the management of threatened species but ...
Steph Bennington, Peter W. Dillingham, Lindsay Wickman, Trudi Webster, Tom Brough, Elisabeth Slooten, Stephen M. Dawson, William J. Rayment   +7 more
wiley   +1 more source

Distance of movement in three threatened butterfly species

Ecological Entomology, Volume 51, Issue 2, Page 250-260, April 2026.
Multi‐year mark–recapture analysis using net displacement and Cormack–Jolly–Seber models shows similar daily detectability (0.17–0.22) among species, supporting robust interspecific comparisons. Dispersal kernels differ: lognormal best for Euphydryas aurinia and Parnassius apollo, exponential for Phengaris arion; P.
Markus Franzén, Anders Forsman, Oskar Kindvall, Victor Johansson   +3 more
wiley   +1 more source

Population Demographics of Killer Whales (Orcinus orca) in Western Australia

Marine Mammal Science, Volume 42, Issue 2, April 2026.
ABSTRACT Understanding population demographics is crucial for the effective conservation of species. This is particularly important for apex predators, such as the killer whale (Orcinus orca), which play important roles in maintaining the structure and function of ecosystems. In this study, we used capture‐mark‐recapture (CMR) modeling to assess killer
Marissa J. Hutchings, Guido J. Parra, Rebecca Wellard, John A. Totterdell, Isabella M. Reeves, Luciana Möller   +5 more
wiley   +1 more source

The fishing and natural mortality of large, piscivorous Bull Trout and Rainbow Trout in Kootenay Lake, British Columbia (2008–2013) [PDF]

PeerJ, 2017
Background Estimates of fishing and natural mortality are important for understanding, and ultimately managing, commercial and recreational fisheries.
Joseph L. Thorley, Greg F. Andrusak
doaj   +2 more sources