Results 61 to 70 of about 35,561 (152)

Estimating seasonal survival of migratory birds using continuous‐time capture–recapture models

Ecological Applications, Volume 36, Issue 6, September 2026.
Abstract Understanding the population dynamics of migratory species requires consideration of their entire annual cycle. A key requirement is the decomposition of annual survival into seasonal periods. While there is increasing evidence that migrations are the most dangerous phase of the annual cycle, temporal variation in seasonal survival and its ...
Michael Schaub, Raphaël Arlettaz, Irmi Zwahlen, Ellen C. Martin   +3 more
wiley   +1 more source

High and minimally variable adult marine survival among multiple stocks of Chinook salmon

Ecosphere, Volume 17, Issue 9, September 2026.
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, Thomas Garrison, David D. Huff, Megan E. Moore, Noel Swain, Patrick L. Thompson, Catarina Wor   +6 more
wiley   +1 more source

Variants of the Jolly-Seber model used in population estimations.

, 2016
Variants of the Jolly-Seber model used in population estimations.
Peter H. Frey (2547829), Gabriella Gilkes (2547826), Holly Allan (2547832), Rupert F. Ormond (2547835), Mauvis A. Gore (2547838)   +4 more
core   +1 more source

Drone‐based radiotelemetry and imagery systems provide an advantage over traditional techniques for estimating survival of dependent juveniles

Wildlife Society Bulletin, Volume 50, Issue 3, September 2026.
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, Dylan L. Bakner, Hannah C. Sabatier, Benjamin S. Sedinger, Christopher A. Nicolai, Kevin M. Ringelman   +5 more
wiley   +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

PVA Highlights Different Management Actions Required to Prevent Extinction in Fenced and Unfenced Populations of Reintroduced Western Quolls

Austral Ecology, Volume 51, Issue 9, September 2026.
ABSTRACT Population Viability Analysis (PVA) is a broad tool which can be used to estimate the likelihood of population persistence in translocated populations. We used PVA to evaluate the viability of two reintroduced populations of western quolls, a threatened marsupial carnivore, using population‐specific parameters.
Rebecca Schaefer, Katherine Tuft, Isabelle Onley, Kym Ottewell, Genevieve L. T. Hayes, Rob Brandle, Catherine Lynch, Katherine E. Moseby   +7 more
wiley   +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

Long‐Term Individual‐Based Monitoring in Bat Conservation: Insights From Automated PIT‐Tag Monitoring

Mammal Review, Volume 56, Issue 3, September 2026.
Review on the outcomes of long‐term, individual‐based monitoring for bat conservation, focusing on data generated by automated passive integrated transponder monitoring. We show that this technique offers new possibilities for long‐term bat monitoring by facilitating the collection of highly relevant conservation data.
Gerald Kerth, Gabriella Krivek, Frauke Meier, Fernanda Chávez, Saskia Schirmer, Jaap van Schaik   +5 more
wiley   +1 more source

Sex‐specific reproductive investment and survival of Atlantic salmon kelts across multiple dams

Ecosphere, Volume 17, Issue 8, August 2026.
Abstract In adult Atlantic salmon, individual variation in migration and movement within rivers during spawning (i.e., reproductive movement, RM) is an important component of overall reproductive investment that may influence subsequent survival and repeat spawning.
Kurt C. Heim, Jonah L. Withers, Aaron Heisey, William R. Ardren, Laurie A. Earley, Theodore Castro‐Santos   +5 more
wiley   +1 more source

A comparison of monitoring methods for inferring demographics of a pond‐breeding amphibian population over 14 years

The Journal of Wildlife Management, Volume 90, Issue 6, August 2026.
We used 4 sampling methods to estimate or index the abundance and sex ratio of spotted salamanders (Ambystoma maculatum) over 14 years. The present study highlights the importance of considering individual heterogeneity in capture probability when estimating abundance of pond‐breeding amphibians from capture data with imperfect detection. Abstract Long‐
Patrick D. Moldowan, Doug P. Armstrong, Glenn J. Tattersall, Njal Rollinson   +3 more
wiley   +1 more source