Results 31 to 40 of about 2,239 (165)

Continuous time-dependent Individual covariates and the Cormack-Jolly-Seber model [PDF]

open access: yesAnimal Biodiversity and Conservation, 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.
doaj  

A decade of humpback whale abundance estimates at Bermuda, an oceanic migratory stopover site

open access: yesFrontiers in Marine Science, 2023
We constructed annual abundance of a migratory baleen whale at an oceanic stopover site to elucidate temporal changes in Bermuda, an area with increasing anthropogenic activity.
Thomas Grove   +4 more
doaj   +1 more source

Full Open Population Capture-Recapture Models with Individual Covariates [PDF]

open access: yes, 2010
Traditional analyses of capture-recapture data are based on likelihood functions that explicitly integrate out all missing data. We use a complete data likelihood (CDL) to show how a wide range of capture-recapture models can be easily fitted using ...
Barker, Richard J.   +1 more
core   +1 more source

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

open access: yes, 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.   +3 more
core   +1 more source

Survival probabilities of loggerhead sea turtles (Caretta caretta) estimated from capture-mark-recapture data in the Mediterranean Sea

open access: yesScientia Marina, 2007
Survival probabilities of loggerhead sea turtles (Caretta caretta) are estimated for the first time in the Mediterranean by analysing 3254 tagging and 134 re-encounter data from this region. Most of these turtles were juveniles found at sea.
Paolo Casale   +4 more
doaj   +1 more source

The Effect of Novel Research Activities on Long-term Survival of Temporarily Captive Steller Sea Lions (Eumetopias jubatus). [PDF]

open access: yesPLoS ONE, 2015
Two novel research approaches were developed to facilitate controlled access to, and long-term monitoring of, juvenile Steller sea lions for periods longer than typically afforded by traditional fieldwork.
Courtney Shuert   +2 more
doaj   +1 more source

Population and sex-specific survival estimates for Atlantic sturgeon: addressing detection probability and tag loss

open access: yesAquatic Biology, 2023
Survival estimates of animal populations provide managers with critical information on productivity, population stability, and demography. Telemetry-based survival estimates can be obtained remotely.
JE Kahn   +5 more
doaj   +1 more source

Evaluating trends in abundance of immature green turtles, Chelonia mydas, in the Greater Caribbean [PDF]

open access: yes, 2005
Many long-lived marine species exhibit life history traits. that make them more vulnerable to overexploitation. Accurate population trend analysis is essential for development and assessment of management plans for these species. However, because many of
Bjorndal, Karen A.   +2 more
core   +1 more source

Fin whale survival and abundance in the Gulf of St. Lawrence, Canada

open access: yesEndangered Species Research, 2014
The fin whale Balaenoptera physalus, the second largest species in the animal kingdom to have lived on Earth, was heavily targeted during the industrial whaling era.
C Ramp   +4 more
doaj   +1 more source

Seasonal survival probabilities suggest low migration mortality in migrating bats. [PDF]

open access: yesPLoS ONE, 2014
Migration is adaptive if survival benefits are larger than costs of residency. Many aspects of bat migration ecology such as migratory costs, stopover site use and fidelity are largely unknown.
Simone Giavi   +4 more
doaj   +1 more source

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