Results 221 to 230 of about 2,025,649 (289)

An integrated model of territory occupancy and mark‐recapture data for estimating spatial variation in survival

Methods in Ecology and Evolution, EarlyView.
Abstract Spatial variation in survival is central to understanding population dynamics and guiding conservation. However, assessing it is hard, since capture‐mark‐recapture (CMR) data required for such inference must be collected over large spatial extents, which is seldom possible.
Jaume A. Badia‐Boher, Michael Schaub, Mátyás Prommer, Marc Kéry   +3 more
wiley   +1 more source

Potential vs. Realized Large Carnivore Density: The Influence of Livestock on Carnivore Carrying Capacity Estimation

Animal Conservation, EarlyView.
In an unfenced mixed‐use savanna landscape in Namibia, we compared realized densities of leopards and cheetahs estimated using spatial capture–recapture models with prey‐based carrying capacity predictions. Leopard densities exceeded predictions based on wild prey alone but closely matched livestock‐supplemented models, suggesting that vulnerable ...
Kathan Bandyopadhyay, Bogdan Cristescu, Stuti Anjaria, Stijn Verschueren, John L. Koprowski, Joseph D. Holbrook, Jeffrey L. Beck, Laurie Marker   +7 more
wiley   +1 more source

A mark-recapture approach for estimating population size of the endangered ringed seal (Phoca hispida saimensis). [PDF]

PLoS One, 2019
Koivuniemi M, Kurkilahti M, Niemi M, Auttila M, Kunnasranta M.   +4 more
europepmc   +1 more source

Beyond the Individual: Multisite Population‐Level Consequences of Road Mortality on a Declining Mammal

Animal Conservation, EarlyView.
We used a comparative study design to quantify population densities, structure, survival, cause‐specific mortality and female productivity in four West‐European hedgehog (Erinaceus europaeus) populations, and to forecast the impact of road mortality on population viability.
Lauren J. Moore, Silviu O. Petrovan, Adam J. Bates, Helen L. Hicks, Philip J. Baker, Sarah E. Perkins, David E. Wembridge, Richard W. Yarnell   +7 more
wiley   +1 more source

Balancing Fire Regimes and Population Dynamics for the Conservation of a Microendemic Lizard From a Biodiversity Hotspot

Animal Conservation, EarlyView.
Disturbance from fire mediates a potential ecophysiological trade‐off between adult performance and juvenile recruitment in the microendemic lizard Ameivula jalapensis. While open, burned habitats enhance adult thermoregulation and condition, unburned patches remain critical for juvenile thermal optima.
Geisa Kely Leandro Vitorino da Silva, Heitor Campos de Sousa, Bruna de França Gomes, Marcio Martins, Adriana Malvasio, Guarino Rinaldi Colli, Thiago Costa Gonçalves Portelinha   +6 more
wiley   +1 more source

Microbiome Dynamics During Translocation of the Critically Endangered Frog Craugastor ranoides

Animal Conservation, EarlyView.
A female Craugastor ranoides fitted with an LB‐2X radio transmitter using a silicone waist‐belt harness for post‐translocation monitoring. ABSTRACT Amphibian populations are declining, and species are going extinct due to habitat loss, climate change, and emerging infectious disease, prompting the increasing use of translocations as a conservation tool.
Xavier A. Harrison, Katherine Herborn, Gilbert Alvarado, María Marta Chavarría, Kirsty J. Marsh, Alexander D.M. Wilson, Alexandra C. North, Victoria E. P. Wakeham, Roberto Fernández, Héctor Zumbado‐Ulate, Jon Bielby, Robert Puschendorf   +11 more
wiley   +1 more source

Correction: Challenges of implementing Mark-recapture studies on poorly marked gregarious delphinids. [PDF]

PLoS One, 2018
Hupman K, Stockin KA, Pollock K, Pawley MDM, Dwyer SL, Lea C, Tezanos-Pinto G.   +6 more
europepmc   +1 more source

Human Recreation and Fire History Shape Landscape Connectivity for an Endangered Forest Carnivore

Animal Conservation, EarlyView.
Roads and trails can impede wildlife movement, but their permeability varies with human use and fire history. We combined GPS telemetry from 45 endangered southern Sierra Nevada fishers (Pekania pennanti) with smartphone‐derived human mobility data to estimate crossing probability across road and trail segments. Fishers were about 2.5 times more likely
Mark A. Ditmer, Maksim Sergeyev, Helen E. Chmura, Jody M. Tucker, Gavin M. Jones, Kari E. Norman, Ronan B. Hart, Michael K. Schwartz, Andria M. Townsend, Rebecca E. Green, Sarah L. Stock, George Wittemyer   +11 more
wiley   +1 more source

Running towards: Labour market incentives for runaway slaves in the British Cape Colony, 1830–1838

Asia‐Pacific Economic History Review, EarlyView.
Abstract Recent scholarship on slave escapes has increasingly emphasised economic motivation, but few studies have empirically investigated how market incentives influenced the decision‐making of enslaved individuals during transitions from coerced to wage labour.
Karl Bergemann, Gabriel Brown, Johan Fourie   +2 more
wiley   +1 more source

Coerced labour patterns in the Cape Colony, c. 1806–1826

Asia‐Pacific Economic History Review, EarlyView.
Abstract Multiple forms of coerced labour co‐existed in the early 19th‐century Cape Colony. This study examines changes in coerced labour force composition. Using annual taxation and census records, we examine district‐ and household‐level changes in reported enslaved, Recaptured African and indigenous Khoesan labour.
Kate Ekama, Benjamin Crous
wiley   +1 more source