Results 41 to 50 of about 3,675 (193)

Taking individual heterogeneity in mortality risks into account in demographic studies of wild animal populations: development and use of statistical models. [PDF]

, 2007
The Cormarck-Jolly-Seber model incorporating frailty implemented in WinBUGS, using the 9000 kittiwake’s dataset monitorized during 22 years, showed that the convergence is very low over computational view. We developed different kind of multistate model,
Alpizar-Jara, R., Cam, E., Monteiro, J.F.   +2 more
core  

Population Dynamics of Northern Pearl Dace Margariscus nachtriebi in Anthropogenically Altered Headwater Streams of the Nebraska Sandhills Ecoregion

River Research and Applications, EarlyView.
ABSTRACT Empirical evidence of population demographic responses to environmental perturbations is a major knowledge gap for aquatic vertebrate populations. Extensive habitat alteration including channelization of headwater streams influences the habitat template on which small‐bodied fish are dependent to carry out distinct life stages and maintain or ...
Joseph Spooner, Jonathan Spurgeon
wiley   +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

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  

Extending the Latent Multinomial Model with Complex Error Processes and Dynamic Markov Bases [PDF]

, 2015
The latent multinomial model (LMM) model of Link et al. (2010) provided a general framework for modelling mark-recapture data with potential errors in identification. Key to this approach was a Markov chain Monte Carlo (MCMC) scheme for sampling possible
Bonner, Simon J, Noren, Patrik, Price, Steven J, Schofield, Matthew R   +3 more
core   +3 more sources

Annual survival in a dynamic species: pronghorn survival patterns across their northern range

Wildlife Biology, EarlyView.
Quantifying variation in demographic patterns, such as survival and recruitment, is critical for understanding population dynamics and informing evidence‐based and adaptive wildlife management. In this study, we leverage an extensive dataset from over 1000 GPS collared pronghorn Antilocapra americana to provide the first large‐scale evaluation of ...
Molly C. McDevitt, Anna K. Moeller, Andrew J. Lindbloom, Kelly Proffitt, Joshua J. Millspaugh, Paul M. Lukacs   +5 more
wiley   +1 more source

When is a parasite not a parasite? Effects of larval tick burdens on white-footed mouse survival [PDF]

, 2014
Many animal species can carry considerable burdens of ectoparasites: parasites living on the outside of a host's body. Ectoparasite infestation can decrease host survival, but the magnitude and even direction of survival effects can vary depending on the
Hersh, Michelle H., LaDeau, Shannon L., Ostfeld, Richard S., Previtali, Maria Andrea   +3 more
core   +1 more source

Fate of orphans of Canada geese harvested by hunters in Connecticut, USA, depends upon which month the parents were killed

Wildlife Biology, EarlyView.
Little is known about what happens to juvenile birds after one or both of their parents are harvested by hunters during the post‐fledging dependency period. Here, we compare the fate of juvenile Canada geese Branta canadensis that lost ≥ 1 parent to hunters (orphans) during this period to other juveniles that retained both parents (non‐orphans). For 25
Michael R. Conover, Lauren J. Head
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  

State space and movement specification in open population spatial capture-recapture models. [PDF]

, 2018
With continued global changes, such as climate change, biodiversity loss, and habitat fragmentation, the need for assessment of long-term population dynamics and population monitoring of threatened species is growing.
Borchers, Borchers, Burnham, Chandler, Cormack, Dorazio, Efford, Efford, Efford, Ergon, Gardner, Gardner, Gelman, Gerber, Gilroy, Hines, Jolly, Karanth, Karanth, Karanth, Kendall, Lebreton, Otis, Plummer, Pollock, Pollock, Pradel, R Core Team, Raabe, Reich, Royle, Royle, Royle, Royle, Schaub, Schwarz, Seber, Smith, Sollmann, Sollmann, Sutherland, Tobler, Whittington, Whittington   +43 more
core   +1 more source