Results 61 to 70 of about 824 (154)

Rcapture: Loglinear Models for Capture-Recapture in R

Journal of Statistical Software, 2007
This article introduces Rcapture, an R package for capture-recapture experiments. The data for analysis consists of the frequencies of the observable capture histories over the t capture occasions of the experiment. A capture history is a vector of zeros
Sophie Baillargeon, Louis-Paul Rivest
doaj  

Abundancia de dos poblaciones de toninas (Tursiops truncatus) en el norte de Veracruz, México

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   +1 more source

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

Ibis, Volume 168, Issue 3, Page 950-971, July 2026.
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

Annual survival estimation of migratory songbirds confounded by incomplete breeding site-fidelity: study designs that may help [PDF]

Animal Biodiversity and Conservation, 2004
Many species of bird exhibit varying degrees of site–fidelity to the previous year’s territory or breeding area, a phenomenon we refer to as incomplete breeding site–fidelity. If the territory they occupy is located beyond the bounds of the study area or
Marshall, M. R., Diefenbach, D. R., Wood, L. A., Cooper, R. J.   +3 more
doaj  

Age‐specific survival of reintroduced swift fox in Badlands National Park and surrounding lands

Wildlife Society Bulletin, 2016
In 2003, a reintroduction program was initiated at Badlands National Park (BNP), South Dakota, USA, with swift foxes (Vulpes velox) translocated from Colorado and Wyoming, USA, as part of a restoration effort to recover declining swift fox populations ...
Indrani Sasmal, Robert W. Klaver, Jonathan A. Jenks, Greg M. Schroeder   +3 more
doaj   +1 more source

Anthropogenic and Environmental Factors Influence Kentish Plover (Anarhynchus alexandrinus) Survival in a Conservation-Reliant Coastal Population

Birds
Bird survival is influenced by both natural and anthropogenic factors, including weather conditions and oil spills. In this study, we examined the impact of a major oil spill (Prestige oil tanker) and climatic conditions (precipitation and wind) on ...
Andrea Gestoso, María Vidal, José A. de Souza, Manuel Martínez-Lago, Francisco Rosende, Jesús Domínguez   +5 more
doaj   +1 more source

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

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  

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