Results 41 to 50 of about 9,556 (282)

A new scoring system for use in capture–recapture studies for bowhead whales photographed with drones1

Drone Systems and Applications, 2022
Effective management of animal populations requires knowledge of life history parameters and estimates of population abundance. One method commonly used to estimate abundance is capture–recapture analyses of photographs.
William R. Koski, Brent G. Young
doaj   +1 more source

Integrated population modelling reveals a perceived source to be a cryptic sink [PDF]

, 2016
This is the final version of the article. Available from the publisher via the DOI in this record.Demographic links among fragmented populations are commonly studied as source-sink dynamics, whereby source populations exhibit net recruitment and net ...
Bearhop, S, Fox, AD, Hilton, GM, Hodgson, DJ, McDonald, JL, Walsh, AJ, Weegman, MD   +6 more
core   +1 more source

Comparing Urban and Wildland Bear Densities with a DNA-Based Capture-Mark-Recapture Approach

Human-Wildlife Interactions, 2017
California’s black bear (Ursus americanus) population has tripled over the last 3 decades, causing an increased incidence of human–bear conflicts, many of which now occur in urban areas. Consequently, it is imperative that bear managers have the ability to monitor population parameters in both wildland and urban environments to help manage bears ...
Fusaro, Jonathan L., Conner, Mary M., Conover, Michael R., Taylor, Timothy J., Kenyon, Marc W., Jr., Sherman, Jamie R., Ernest, Holly B.   +6 more
openaire   +4 more sources

Growing as slow as a turtle: Unexpected maturational differences in a small, long-lived species.

PLoS ONE, 2021
Turtle body size is associated with demographic and other traits like mating success, reproductive output, maturity, and survival. As such, growth analyses are valuable for testing life history theory, demographic modeling, and conservation planning. Two
Devin Edmonds, Michael J Dreslik, Jeffrey E Lovich, Thomas P Wilson, Carl H Ernst   +4 more
doaj   +2 more sources

Ten years of data on small mammal species in Doñana (SW Spain): 2011–2021 [PDF]

Biodiversity Data Journal
The long-term monitoring of the small mammal community in Doñana (SW Spain) was initiated in 2011 as part of the European Long-Term Ecological Research (eLTER) project, of which Doñana is a Long-Term Socio-Ecological Research (LTSER) Platform.
Francisco Carro, Xosé Pardavila, Álvaro Martín, Carlos Caro, Isidro Román, Ramón-Casimiro Soriguer, Luis Santamaría, Javier Bustamante, Rocío Márquez-Ferrando, Ricardo Díaz-Delgado   +9 more
doaj   +3 more sources

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

State‐wide population characteristics and long‐term trends for eastern box turtles in North Carolina

Ecosphere, 2021
Turtles are in decline worldwide, and the magnitude and recent acceleration of population declines requires immediate action to inform conservation and management plans.
John H. Roe, Gabrielle J. Graeter, Ashley A. LaVere, Ann B. Somers   +3 more
doaj   +1 more source

The home range of the signal crayfish in a British lowland river [PDF]

, 1997
The signal crayfish Pacifastacus leniusculus (Dana), a native of north-western North America, is now a common resident in some British fresh waters following its introduction to England in 1976 (Lowery & Holdich 1988).
Guan, Rui-Zhang, Wiles, Peter
core  

Stability of Perovskite Indoor Photovoltaics: A Focused Review and a Call for Standardized Stability Reporting

Advanced Energy Materials, EarlyView.
While perovskite solar cells have been widely studied, including their stability, perovskite indoor photovoltaics (IPVs) have only recently emerged. Nevertheless, more studies are appearing in the literature. The systematic stability study of IPVs is crucial, particularly given the inconsistencies in reported methodologies and results, which call for ...
Ivy Mawusi Asuo, Arezo Mahdavi Varposhti, Cyril Chu Fubin Kumachang, Gopal Krishnamurthy Grandhi, Vincenzo Pecunia, Thomas Meredith Brown, Paola Vivo, Nutifafa Yao Doumon   +7 more
wiley   +1 more source

Between-Year Survival and Rank Transitions in Male Black-Capped Chickadees (\u3cem\u3ePoecile Atricapillus\u3c/em\u3e): A Multistate Modeling Approach [PDF]

, 2008
In dominance-structured animal societies, variation in individual fitness is often related to social status. Like many passerine birds, Black-capped Chickadees (Poecile atricapillus) have a short average adult life-expectancy (Ø2 years); however, the ...
Kraus, Cornelia, Mennill, Daniel J., Otter, Ken A., Ramsay, Scott M., Ratcliffe, Laurene M., Schubert, Kristin A.   +5 more
core   +1 more source