Results 61 to 70 of about 2,631,405 (248)

Jaguar (Panthera onca) population density and landscape connectivity in a deforestation hotspot: The Paraguayan Dry Chaco as a case study

Perspectives in Ecology and Conservation, 2022
The distribution of the jaguar has decreased by approximately 50% with its conservation highly dependent upon its persistence and mobility in anthropogenic landscapes.
Jeffrey J. Thompson, Marianela Velilla, Hugo Cabral, Nicolás Cantero, Viviana Rojas Bonzi, Evelyn Britez, Juan M. Campos Krauer, Roy T. McBride, Jr., Rodrigo Ayala, José Luis Cartes   +9 more
doaj   +1 more source

Unravelling the effects of heterogeneity in space use on estimates of connectivity and population size: Insights from spatial capture-recapture modelling

bioRxiv
Spatial Capture-Recapture (SCR) models using least-cost path distance offer an unified framework to estimate landscape connectivity and population size from individual detection data, while accounting for individual and spatial heterogeneity in space use.
Maelis Kervellec, Olivier Gimenez, C. Vanpé, P. Quenette, J. Sentilles, S. Palazon, Ivan Afonso Jordana, R. Jato, Miguel Mari Elósegui Irurtia, C. Milleret   +9 more
semanticscholar   +1 more source

Low genetic variability, female-biased dispersal and high movement rates in an urban population of Eurasian badgersMeles meles [PDF]

, 2008
1. Urban and rural populations of animals can differ in their behaviour, both in order to meet their ecological requirements and due to the constraints imposed by different environments.
Bijlsma, Brownstein, Carpenter, Carpenter, Carpenter, Cheeseman, Christian, Clements, Cresswell, da Silva, Davison, Davison, Ditchkoff, Domingo-Roura, Doncaster, Dugdale, Dugdale, Engel, Estes, Evans, Favre, Frantz, Frantz, Frantz, Gottelli, Griffiths, Hardy, Harris, Harris, Huck, Huck, Huck, Kalinowski, Kowalczyk, Kruuk, Langbein, Loiselle, Macdonald, Marmi, Marshall, McKelvey, McKelvey, Miller, Miller, Mills, Page, Pertoldi, Pope, Queller, Raymond, Roper, Rousset, Scheppers, Schley, Smal, Taberlet, Taberlet, Taylor, Tuyttens, Tuyttens, van Oosterhout, Vekemans, Waits, Walsh, Wilberg, Woodroffe, Woodroffe   +66 more
core   +2 more sources

Testing the precision and sensitivity of density estimates obtained with a camera‐trap method revealed limitations and opportunities

Ecology and Evolution, 2021
The use of camera traps in ecology helps affordably address questions about the distribution and density of cryptic and mobile species. The random encounter model (REM) is a camera‐trap method that has been developed to estimate population densities ...
Pascal Pettigrew, Daniel Sigouin, Martin‐Hugues St‐Laurent   +2 more
doaj   +1 more source

Early maternal experience shapes offspring performance in the wild [PDF]

, 2013
Both the environments experienced by a mother as a juvenile and an adult can affect her investment in offspring. However, the implications of these maternal legacies, both juvenile and adult, for offspring fitness in natural populations are unclear.
Armstrong, J.D., Burton, T., McKelvey, S., Metcalfe, N.B., Stewart, D.C.   +4 more
core   +1 more source

Harnessing Controlled Dealloying–Support Coupling for Ultrastable PtNi Catalysts in PEMFC Applications

Angewandte Chemie International Edition, EarlyView.
A controllable alloying–dealloying strategy constructs PtNi core–shell nanoparticles confined within an N‐doped carbon framework. Selective ammonia‐assisted dealloying forms a Pt‐rich shell while immobilizing Ni as Ni–N/C moieties, synergistically stabilizing the catalyst.
Fei Guo, Manxi Gong, Longxiang Liu, Bochen Li, Ruwei Chen, Mengjun Gong, Wei Zong, Jianuo Chen, Qi Li, Jing Li, Yunpeng Zhong, Zeyi Zhang, Jianrui Feng, Rhodri Jervis, Guanjie He   +14 more
wiley   +1 more source

That's not the Mona Lisa! How to interpret spatial capture-recapture density surface estimates.

Biometrics
Spatial capture-recapture methods are often used to produce density surfaces, and these surfaces are often misinterpreted. In particular, spatial change in density is confused with spatial change in uncertainty about density.
Ian Durbach, Rishika Chopara, David L Borchers, Rachel Phillip, Koustubh Sharma, Ben C Stevenson   +5 more
semanticscholar   +1 more source

oSCR: a spatial capture–recapture R package for inference about spatial ecological processes

Ecography, 2019
Spatial capture–recapture (SCR) methods have become widely applied in ecology. The immediate adoption of SCR is due to the fact that it resolves some major criticisms of traditional capture–recapture methods related to heterogeneity in detectabililty ...
Chris S. Sutherland, J. Andrew Royle, D. Linden   +2 more
semanticscholar   +1 more source

Mt or not Mt: Temporal variation in detection probability in spatial capture-recapture and occupancy models

bioRxiv
State variables such as abundance and occurrence of species are central to many questions in ecology and conservation, but our ability to detect and enumerate species is imperfect and often varies across space and time.
Sollmann Rahel
semanticscholar   +1 more source

Regional Shopping Objectives in British Grocery Retail Transactions Using Segmented Topic Models

Applied Stochastic Models in Business and Industry, EarlyView.
ABSTRACT Understanding the customer behaviours behind transactional data has high commercial value in the grocery retail industry. Customers generate millions of transactions every day, choosing and buying products to satisfy specific shopping needs.
Mariflor Vega Carrasco, Mirco Musolesi, Jason O'Sullivan, Rosie Prior, Ioanna Manolopoulou   +4 more
wiley   +1 more source