Results 61 to 70 of about 3,597 (143)

Trap‐dependence in capture–recapture studies: empirical evidence in vertebrates and biological meaning

Oikos, Volume 2026, Issue 2, February 2026.
Capture–recapture (CR) models have been used for decades to estimate population size and demographic rates in natural populations from the monitoring of individuals. One of the most frequent deviations from assumptions required in CR studies is the immediate trap‐dependence that corresponds to the correlation between capture events. We review empirical
Jessica Cachelou, Jean‐Michel Gaillard, Agathe Chassagneux, Eric Baubet, Marlène Gamelon   +4 more
wiley   +1 more source

Accounting for heterogeneity when estimating stopover duration, timing and population size of red knots along the Luannan Coast of Bohai Bay, China

Ecology and Evolution, 2019
To successfully perform their long‐distance migrations, migratory birds require sites along their migratory routes to rest and refuel. Monitoring the use of so‐called stopover and staging sites provides insights into (a) the timing of migration and (b ...
Tamar Lok, Chris J. Hassell, Theunis Piersma, Roger Pradel, Olivier Gimenez   +4 more
doaj   +1 more source

An empirical Bayesian approach to incorporate directional movement information from a forage fish into the Arnason-Schwarz mark-recapture model

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

Multi-state open robust design applied to opportunistic data reveals dynamics of wide-ranging taxa: The sperm whale case. [PDF]

, 2019
© The Author(s), 2019. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Boys, R. M., Oliveira, C., Perez-Jorgeo, S., Prieto, R., Steiner, L., & Silva, M. A.
Boys, Rebecca M., Oliveira, Claudia, Prieto, Rui, Pérez‐Jorge, Sergi, Silva, Monica A., Steiner, Lisa   +5 more
core   +1 more source

Evaluation of abundance indexes in open population studies: a comparison in populations of small mammals in southern Brazil

Brazilian Journal of Biology
Many manuscripts comparing populations and/or analysing the structure of animal communities use indexes of captures as synonymous of abundance. However, the basic methods more suitable to this assumption - probabilistic estimates based on equal capture ...
ME Graipel, MIM Hernández, C Salvador
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, Margaret M. Lamont, Allen Foley   +2 more
doaj   +1 more source

HOME RANGE AND MICROHABITAT ASSOCIATIONS OF THE SOUTHERN RED-BACKED VOLE (MYODES GAPPERI) IN NEW HAMPSHIRE FORESTS [PDF]

, 2018
Resources, such as food and shelter, are unevenly distributed across the landscape at both macro and micro scales. Home range is one measure of space use that reflects an individual’s resource requirements (e.g., microhabitat characteristics) and ...
Tisell, Honora
core   +2 more sources

An approach to modeling abundance of marine wildlife over space and time using unstructured aerial surveys

The Journal of Wildlife Management, Volume 90, Issue 1, January 2026.
We present an approach for estimating wildlife abundance from unstructured aerial surveys. We combine a spatial model for count data with auxiliary information on detection probability. This framework is intended to be flexible, requiring lower survey costs and less computation time than other alternatives for estimating abundance.
Timothy A. Gowan, Jennifer F. Moore, Holly H. Edwards, Ashley B. C. Goode, Julien Martin   +4 more
wiley   +1 more source

Urban Populations of Queen Snakes (Regina Septemvittata) and Northern Watersnakes (Nerodia sipedon sipedon) [PDF]

, 2019
Undergraduate ...
Beiler, Rachel, Miller, Robert
core   +1 more source

A Mark‐Recapture Estimate of the Number of American Eels Arriving at the Lowermost Barrier on the Wolastoq|Saint John River, Canada

River Research and Applications, Volume 42, Issue 1, Page 40-59, January 2026.
ABSTRACT The upstream migration of juvenile American eels (Anguilla rostrata) is frequently obstructed by dams and other in‐stream barriers, leading to habitat loss and fragmentation, factors that are believed to contribute to the species' population decline.
Felix Eissenhauer, Tommi Linnansaari, Thomas C. Pratt, R. Allen Curry, Philip M. Harrison   +4 more
wiley   +1 more source