Results 31 to 40 of about 824 (154)

Complete tag loss in capture–recapture studies affects abundance estimates: An elephant seal case study

Ecology and Evolution, 2020
In capture–recapture studies, recycled individuals occur when individuals lose all of their tags and are recaptured as though they were new individuals. Typically, the effect of these recycled individuals is assumed negligible. Through a simulation‐based
Emily Malcolm‐White, Clive R. McMahon, Laura L. E. Cowen   +2 more
doaj   +1 more source

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

Wildlife Society Bulletin, EarlyView.
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

Reproduction, growth rate and dispersal of the dark chub, Candidia sieboldii, as estimated by using the mark–release–recapture method

Journal of Freshwater Ecology, 2017
We investigated the breeding season, growth rate and dispersal of the dark chub, Candidia sieboldii, an endangered species in Japan. A mark–release–recapture survey was performed in three branches of the Ishizu River system in Osaka Prefecture, Japan ...
Haruka Matsuoka, Norio Hirai, Minoru Ishii   +2 more
doaj   +1 more source

Capture-mark-recapture modelling suggests an Endangered status for the Mayotte Island (eastern Africa) population of Indo-Pacific bottlenose dolphins

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, C Barbraud, J Kiszka, S Caceres, J Mougnot, G Daudin, V Ridoux   +6 more
doaj   +1 more source

Counter‐factual simulation highlights requirements for additional management to avert extinction of a relict Tītī/Sooty Shearwater population

Ibis, EarlyView.
Seabirds play key ecological roles but face increasing threats worldwide. Among them, Tītī (Sooty Shearwater) Ardenna grisea are among the most abundant and culturally significant species in the Southern Hemisphere but are also threatened. Kapiti Island, Aotearoa (New Zealand), holds a Tītī colony which, despite eradication of non‐native mammalian ...
Etienne Ossona De Mendez, Brendon J. Dunphy, Kristal E. Cain, Johannes Chambon, Reg Cotter, Elisabeth Daigle, Graeme A. Taylor, Johannes H. Fischer   +7 more
wiley   +1 more source

Lake sturgeon (Acipenser fulvescens) growth and longevity estimated from adult capture–mark–recapture data

Journal of Fish Biology, EarlyView.
Abstract Effective fishery management policy depends on accurate life‐history data, particularly for harvested species. Longevity is a core life‐history trait that is directly related to annual survival and lifetime reproductive potential, but fish longevity is generally not well documented, particularly for long‐lived species.
Edward A. Baker, Scott F. Colborne, Nancy A. Auer, Kim T. Scribner, Douglas L. Larson, Andrew S. Briggs, Ronald M. Bruch, Margaret H. Stadig, Michael C. Donofrio   +8 more
wiley   +1 more source

Tracking hatchery and wild Atlantic salmon (Salmo salar) smolt during river exit and early marine migration to assess survival, predation risk and migration speed

Journal of Fish Biology, EarlyView.
Abstract Significant declines in Atlantic salmon (Salmo salar) populations across their range have prompted an increased use of hatchery supplementation programmes to support population recovery. However, concerns persist regarding the effectiveness of these programmes due to limited understanding of how hatchery‐reared salmon perform post‐release in ...
Natalie C. Koopman, David C. Hardie, Robert J. Lennox, Morgan L. Piczak, Frederick G. Whoriskey, Eric B. Brunsdon, Jeffrey A. Hutchings, Glenn T. Crossin   +7 more
wiley   +1 more source

Use of capture–recapture models to evaluate abundance and dynamics of a stocked Muskellunge population

Aquaculture, Fish and Fisheries
To evaluate the success of a stocking program in Fox Lake, Minnesota, adult (≥76 cm total length) Muskellunge were captured with large nearshore trap nets and individually marked with passive integrated transponder tags during the 2011–2013 and 2015–2017
Steven M. Shroyer, Nathaniel C. Hodgins
doaj   +1 more source

Apparent survival probability and abundance of juvenile green turtles in the foraging ground at Kuroshima Island, Ryukyu Archipelago

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, M Wakatsuki, M Takase, Y Nakanishi, N Kamezaki   +4 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