Results 51 to 60 of about 3,606 (149)

HOME RANGE AND MICROHABITAT ASSOCIATIONS OF THE SOUTHERN RED-BACKED VOLE (MYODES GAPPERI) IN NEW HAMPSHIRE FORESTS [PDF]

, 2018
Resources, such as food and shelter, are unevenly distributed across the landscape at both macro and micro scales. Home range is one measure of space use that reflects an individual’s resource requirements (e.g., microhabitat characteristics) and ...
Tisell, Honora
core   +2 more sources

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

Population ecology of Chaetophractus vellerosus: the first report for an armadillo in South America

Zoologia (Curitiba), 2017
The aim of this work was to obtain the first estimates of survival rates (S), capture probability (p) and life expectancy for armadillos in South America by analyzing capture-mark-recapture data obtained from a population of Chaetophractus vellerosus ...
Agustín M. Abba, Veronica V. Benitez, Santiago R. Doyle   +2 more
doaj   +1 more source

Parámetros poblacionales de la rana dorada, Phyllobates terribilis (Myers et al., 1978) (Dendrobatidae), en una localidad de Buenaventura, Valle del Cauca, Colombia

Biota Colombiana, 2018
El objetivo de este estudio fue estimar el tamaño, densidad, probabilidad de supervivencia (φ), de detección (p), y describir las condiciones del hábitat de una población de la rana dorada (Phyllobates terribilis, Dendrobatidae) en bajos del río Naya ...
Stefhania Alzate-Lozano, Rodrigo Lozano-Osorio, Carlos Galvis   +2 more
doaj   +3 more sources

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

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

Exploring drivers and costs of partial trans‐Saharan migration in juvenile vultures

Ibis, EarlyView.
Partial migration occurs when only a subset of individuals within a population undertakes a migratory journey. The decision to migrate can be influenced by intrinsic traits (e.g. sex or physical condition) as well as by extrinsic factors (e.g. social environment or resource availability).
Eneko Arrondo, Ana Sanz‐Aguilar, Andrea Santangeli, Manuel De La Riva, David Serrano, Ainara Cortés‐Avizanda, Olivier Duriez, Juan Manuel Pérez‐García, José Antonio Sanchez‐Zapata, Martina Carrete, Juan Oltra, Antoni Margalida, Pilar Oliva‐Vidal, Guillermo Blanco, Oscar Frías, Félix Martínez, José Luis González‐Del Barrio, José María Martínez, José Antonio Donázar   +18 more
wiley   +1 more source

Extreme polygyny results in intersex differences in age-dependent survival of a highly dimorphic marine mammal

Royal Society Open Science, 2023
Developmental differences in vital rates are especially profound in polygamous mating systems. Southern elephant seals (Mirounga leonina) are highly dimorphic and extremely polygynous marine mammals.
Sophia Volzke, Jaimie B. Cleeland, Mark A. Hindell, Stuart P. Corney, Simon J. Wotherspoon, Clive R. McMahon   +5 more
doaj   +1 more source

Lake sturgeon (Acipenser fulvescens) growth and longevity estimated from adult capture–mark–recapture data

Journal of Fish Biology, EarlyView.
Abstract Effective fishery management policy depends on accurate life‐history data, particularly for harvested species. Longevity is a core life‐history trait that is directly related to annual survival and lifetime reproductive potential, but fish longevity is generally not well documented, particularly for long‐lived species.
Edward A. Baker, Scott F. Colborne, Nancy A. Auer, Kim T. Scribner, Douglas L. Larson, Andrew S. Briggs, Ronald M. Bruch, Margaret H. Stadig, Michael C. Donofrio   +8 more
wiley   +1 more source

Accounting for heterogeneity when estimating stopover duration, timing and population size of red knots along the Luannan Coast of Bohai Bay, China

Ecology and Evolution, 2019
To successfully perform their long‐distance migrations, migratory birds require sites along their migratory routes to rest and refuel. Monitoring the use of so‐called stopover and staging sites provides insights into (a) the timing of migration and (b ...
Tamar Lok, Chris J. Hassell, Theunis Piersma, Roger Pradel, Olivier Gimenez   +4 more
doaj   +1 more source