Results 81 to 90 of about 35,561 (152)

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

Scientia 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, Antonios D. Mazaris, Daniela Freggi, Roberto Basso, Roberto Argano   +4 more
doaj   +1 more source

Incorporating telemetry information into capture‐recapture analyses improves precision and accuracy of abundance estimates given spatiotemporally biased recapture effort

Methods in Ecology and Evolution
Natural populations that are rare, cryptic or inaccessible provide a monumental challenge to monitoring, as adequate data are extremely difficult to collect. Surveys often encompass only a small portion of a population's range due to difficult terrain or
Janelle J. Badger, Devin S. Johnson, Robin W. Baird, Amanda L. Bradford, Michaela A. Kratofil, Sabre D. Mahaffy, Erin M. Oleson   +6 more
doaj   +1 more source

Estimation des paramètres démographiques d'une population par le modèle de Jolly-Seber : programme basic d'application

, 1988
This report describes the use of the Jolly-Seber method, a mark-recapture technique for estimating demographic parameters of open animal populations, meaning populations where processes such as mortality, recruitment, immigration, and emigration can ...
Lardeux, Frédéric
core   +1 more source

Abundancia de dos poblaciones de toninas (Tursiops truncatus) en el norte de Veracruz, México Abundance of two populations of bottlenose dolphins (Tursiops truncatus) in northern Veracruz, Mexico

Revista Mexicana de Biodiversidad, 2011
En México no se conoce el tamaño de las poblaciones de la tonina (Tursiops truncatus) debido a su gran movilidad y al ocasional intercambio de individuos entre poblaciones.
Michelle P. Valdes-Arellanes, Arturo Serrano, Gisela Heckel, Yolanda Schramm, Ibiza Martínez-Serrano   +4 more
doaj  

Appendix C. Details of the simulation study of the Jolly-Seber extension to our spatially explicit capture–recapture model.

, 2016
Details of the simulation study of the Jolly-Seber extension to our spatially explicit capture–recapture ...
J. Andrew Royle (111267), Beth Gardner (169002), Juan Reppucci (2922585), Mauro Lucherini (89484)   +3 more
core   +1 more source

Genetic and environmental factors associated with survival of a rare songbird in a fragmented urban landscape

Conservation Science and Practice
The coastal Cactus Wren (Campylorhynchus brunneicapillus) persists in small and fragmented populations throughout southern California that are subject to genetic drift and inbreeding.
Amy G. Vandergast, Anna Mitelberg, Barbara E. Kus, Kristine L. Preston, Suellen Lynn, Alexandra Houston, Robert C. Klinger   +6 more
doaj   +1 more source

Assessing the success of conservation translocation establishment: Post‐translocation demography of Nubian giraffe (Giraffa camelopardalis camelopardalis) in Uganda

Conservation Science and Practice
Conservation translocations are increasingly important for restoring and augmenting wild populations of extirpated species or those diminishing rapidly.
Michael Butler Brown, Herbert Kasozi, Robert Aruho, Stephanie Fennessy, Sara Ferguson, Arthur Muneza, Julian Fennessy   +6 more
doaj   +1 more source

The Jolly-Seber-Tag-Loss model with group heterogeneity

, 2010
Mark-recapture experiments are performed to estimate population parameters such as survival probabilities. Animals are captured, tagged, released, and recaptured at subsequent time periods in order to obtain parameter information.
Cowen, Laura L.E., Gonzalez, Selina
core  

Evaluating camera survey methods for estimating wild turkey abundance

Wildlife Society Bulletin
Accurately estimating population parameters rests on methodological approaches that provide unbiased, cost‐effective estimates; however, assessing accuracy of estimates can be vexing as true abundance is rarely known.
Byron R. Buckley, Jason B. Hardin, Michael J. Chamberlain, Bret A. Collier   +3 more
doaj   +1 more source

Demography and Behaviour of Teinopodagrion oscillans (Odonata: Megapodagrionidae) in a Protected Area of the Colombian Andean Region

Insects
The demography and behaviour of Teinopodagrion oscillans was studied in a protected area in the Andean region of Colombia. Adult damselflies were individually marked, and using their recapture histories, we estimated survival, longevity, sex ratio, and ...
Fredy Palacino-Rodríguez, Diego Andres Palacino, Andrea Penagos Arevalo, Adolfo Cordero-Rivera   +3 more
doaj   +1 more source