Results 111 to 120 of about 3,013,651 (234)

Capture-recapture studies with incomplete mixed categorical and continuous covariates [PDF]

, 2008
Registrations in epidemiological studies suffer from incompleteness, thus a general consensus is to use capture-recapture models. Inclusion of covariates which relate to the capture probabilities has been shown to improve the estimate of population size.
Eugene Zwane, Methodology and statistics for the behavioural and social sciences, van der Heijden, P.G.M., Zwane, E., Peter Van Der Heijden, Afd methoden en statistieken, Zwane, E.N.   +6 more
core  

Capture-recapture data

, 2016
Capture-recapture ...
Cayuela, Hugo, Joly, Pierre, Pierre Joly (3255936), Hugo Cayuela (3595871), Roger Pradel (111017), Besnard, Aurélien, Aurélien Besnard (556790), Pradel, Roger   +7 more
core   +1 more source

Inferring Brown Bear Hair Snare Interactions by Automatically Detecting Bipedalism on Camera Trap Images Using Pose Estimation and a Multilayer Perceptron

Remote Sensing in Ecology and Conservation, EarlyView.
This study proposes an automated method to infer brown bear hair snare interactions by detecting bipedal behavior in camera‐trap images using a pose estimation model and a multilayer perceptron (MLP). A YOLO‐based model, fine‐tuned from humans and dogs to a custom dataset, achieved high performance (≈93% keypoint precision and ≈96% classification ...
Arnau Campanera‐Moliné, Víctor Sazatornil, Lluís Brotons, Felipe Lumbreras Ruiz, Robert Benavente, Maguiña Ramilo‐Henry, Cristina Ramos, Santiago Palazón, Daniel Ponsa   +8 more
wiley   +1 more source

A Comparison of Mobile Laser Scanning Data Acquisition Methods in Closed Forest, Open Woodland and Sub‐Alpine Woodland Ecosystems

Remote Sensing in Ecology and Conservation, EarlyView.
This study demonstrates that the mobile laser scanning (MLS) sampling density required to reliably characterise vegetation structure increases with a site's structural complexity. Applying a five‐level acquisition framework across open woodland, closed forest and sub‐alpine woodland ecosystems, we found that longer scanning paths increased the ...
Johann Tiede, Karin Reinke, Trung H. Nguyen, Simon Jones   +3 more
wiley   +1 more source

Development and Evaluation of a Low‐Cost, Semi‐Automated Camera Trap for Surveying Bumble Bee Communities

Remote Sensing in Ecology and Conservation, EarlyView.
Camera traps are emerging as a useful tool for noninvasive insect monitoring; however, it remains unclear how to lure diurnal insects to traps, how to detect them upon arrival, and how camera‐based methods compare to conventional sampling. We developed a low‐cost, open‐source camera trap to monitor wild bumble bees in agricultural fields. We found that
Michael P. Getz, Lincoln R. Best, Oksana Ostroverkhova, Andony P. Melathopoulos, Timothy L. Warren   +4 more
wiley   +1 more source

Capture-recapture histories

, 2019
Matrix a capture-recapture data including 17 capture sessions (in column) and 3822 individuals (in line).
Cayuela, Hugo, Brandt, Hannelore, Hannelore Brandt (556878), Ozgul, Arpat, Benedikt R. Schmidt (193795), Schmidt, Benedikt R., Hugo Cayuela (3595871), Arpat Ozgul (707966), Sam Cruickshank (6491609), Cruickshank, Sam   +9 more
core   +1 more source

Citizen Science for Individual Identification of Pine Martens Martes martes From Camera Trap Footage

Remote Sensing in Ecology and Conservation, EarlyView.
Camera traps generate large volumes of wildlife footage, but identifying animals to the individual level remains challenging and time‐consuming. Using European pine martens in the Forest of Dean as a case study, we assessed whether citizen scientists could identify individuals from camera trap photos and videos.
Sian E. Green, Philip A. Stephens, Josie Bridges, Catherine M. McNicol, Russell A. Hill   +4 more
wiley   +1 more source

Capture-mark-resighting history of roseate terns ringed as fledglings

, 2018
Capture-mark-resighting history of individual roseate terns ringed as fledglings in the colonies Rockabill (R), Lady's Island Lake (L) and Coquet Island (C) from 1992 to 2016.
Tom Cadwallender (7058777), Paul Morrison (761685), Mark Bolton (132313), Norman Ratcliffe (171878), Daniel Piec (7058774), Adam Seward (7058765), Wesley Davies (7058780), Steve Newton (7058768), Richard Caldow (7058771)   +8 more
core   +1 more source

Efficient and Accurate Spatio‐Temporal Population Monitoring of Mobile Animals Using Drones and Computer Vision

Remote Sensing in Ecology and Conservation, EarlyView.
Drones and computer vision offer an efficient way to estimate animal populations over localized areas, but surveys often require stitching many overlapping images together. If animals move during the survey, traditional orthomosaic‐based counting methods become unreliable, with some animals appearing in multiple locations while others appear not at all,
Benjamin Koger, Albert B. Kao, Curry J. Cunningham, Thomas P. Quinn, Caroline Kittle, Andrew M. Berdahl   +5 more
wiley   +1 more source

Exploring patterns of female house mouse spatial organisation among outbreaking and stable populations

Ecology and Evolution
The size and distribution of home ranges reflect how individuals within a population use, defend, and share space and resources, and may thus be an important predictor of population‐level dynamics.
Nikki Van de Weyer, Wendy A. Ruscoe, Peter R. Brown, Steve Henry, Freya Robinson, Lyn A. Hinds, Kevin P. Oh   +6 more
doaj   +1 more source