Results 51 to 60 of about 3,647 (182)

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

Estimation of Survival Rates from a Jolly-Seber Model with Tag Loss [PDF]

, 1984
22 pages, 1 article*Estimation of Survival Rates from a Jolly-Seber Model with Tag Loss* (Kremers, Walter K.) 22 ...
Cornell University. Biometrics Unit., Cornell University. Dept. of Biological Statistics and Computational Biology., Cornell University. Dept. of Biometrics., Kremers, Walter K.   +3 more
core  

Monitoring African Megafauna in an Anthropogenic Landscape: A 15‐Year Case Study of the Vulnerable West African Giraffe

Animal Conservation, EarlyView.
We used pattern recognition software to correct misidentifications in a 15‐year photographic database of the last, vulnerable West African giraffe population in Niger. After revealing substantial methodological errors that had inflated population estimates by nearly 19%, we corrected individual encounter histories and applied capture‐mark‐recapture ...
Mara Vukelić, Ella W. White, Julian Fennessy, Abdoul Razack Moussa Zabeirou, Kateřina Gašparová, Simon Valle, Michael B. Brown, Thomas Rabeil, Karolína Brandlová   +8 more
wiley   +1 more source

Covariantes continuas individuales dependientes del tiempo y el modelo de Cormack–Jolly–Seber [PDF]

, 2004
The Cormack–Jolly–Seber model provides the basic framework for analyzing the survival of animals in open populations using capture–recapture data. Extensions of this model have already been developed that allow the survival and capture probabilities to ...
Bonner, S. J., Schwarz, C. J.
core  

The demography of the lizard Tropidurus torquatus (Squamata, Tropiduridae) in a highly seasonal Neotropical savanna [PDF]

, 2003
The demography of a population of Tropidurus torquatus was studied from March 1996 until December 1998, in the Cerrado biome of the Central Brazil, using the method of capture and recapture.
Adriana C. S. Pinto, Guarino R. Colli, Helga C. Wiederhecker, Marcela S. Paiva   +3 more
core   +2 more sources

Distance of movement in three threatened butterfly species

Ecological Entomology, EarlyView.
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

A half century of monitoring reveals contrasting survival responses of Icelandic seabirds to climate and fisheries pressures

Ibis, EarlyView.
Seabirds serve as key indicators of marine environmental changes, with adult survival being a critical parameter for assessing population health. Iceland hosts some of the largest seabird populations in the North Atlantic, making it a valuable location for studying long‐term trends in seabird demographics.
Sarah E. Gutowsky, Mark L. Mallory, Gregory J. Robertson, Anna M. Calvert, David A. Fifield, Sverrir Thorstensen, Ævar Petersen   +6 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

Nest Success and Hatchling Survival of American Alligators Within Inland Wetlands of East Texas [PDF]

, 2012
Because of liberalization of American alligator (Alligator mississippiensis) harvest management in Texas, estimates of nest success and hatchling survival for inland populations are essential for long-term, sustainable population and harvest management ...
Calkins, Gary, Conway, Warren C., Saalfeld, David   +2 more
core   +2 more sources

Inshore marine coastal zone migration patterns in Atlantic salmon post‐smolts emigrating from eight rivers in north‐east Scotland

Journal of Fish Biology, EarlyView.
Abstract Atlantic salmon, Salmo salar, migrate through multiple habitat types, each having the potential to impact differently upon migration success. The inshore marine coastal zone is arguably disproportionately impacted by potential stressors on populations.
Colin E. Adams, Ruaidhri Forrester, Matthew Newton, Angus J. Lothian, Hannele M. Honkanen, Davide Thambithurai, Lorna Wilkie, Melanie A. Smith, Marcus Walters, Richard Miller, Karen Muller, Brian Shaw, Steve Burns, Chris Conroy, Chris Daphne, Robert Laughton, Mirella Toth, Keith Williams, Sean Robertson, Ross Glover, Ben Seaman, Martyn C. Lucas, Louise Chavarie, Jessica R. Rodger   +23 more
wiley   +1 more source