Results 61 to 70 of about 4,407 (204)

Monitoring feral pigs (Sus scrofa): Complementarity between autonomous sensing methods increases detection probability

Remote Sensing in Ecology and Conservation, EarlyView.
Invasive alien species are a major threat for biodiversity worldwide and effective monitoring is paramount to inform management. In this study we used a multi‐season occupancy model to assess probability of detection between camera traps and passive acoustic recorders for feral pigs (Sus scrofa) during 1 year of data collection.
Marina D. A. Scarpelli, Stewart Macdonald, Maryam Golchin, Simon Linke, Jens G. Froese   +4 more
wiley   +1 more source

Ghostbusting—Reducing bias due to identification errors in spatial capture‐recapture histories

Methods in Ecology and Evolution
Identifying individuals is key to estimating population sizes by spatial capture–recapture, but identification errors are sometimes made. The most common identification error is the failure to recognise a previously detected individual, thus creating a ...
Abinand Reddy Kodi, Jasmin Howard, David Louis Borchers, Hannah Worthington, Justine Shanti Alexander, Purevjav Lkhagvajav, Gantulga Bayandonoi, Munkhtogtokh Ochirjav, Sergelen Erdenebaatar, Choidogjamts Byambasuren, Nyamzav Battulga, Örjan Johansson, Koustubh Sharma   +12 more
doaj   +1 more source

Sex‐specific population dynamics of ocelots in Belize using open population spatial capture–recapture

Ecosphere, 2019
We used open population, spatial capture–recapture (SCR) models to estimate sex‐specific density, survival, per capita recruitment, and population growth rate of ocelots (Leopardus pardalis) at five sites in Belize with up to 12 yr of data per site. Open
Christopher B. Satter, Ben C. Augustine, Bart J. Harmsen, Rebecca J. Foster, Marcella J. Kelly   +4 more
doaj   +1 more source

Historical remote sensing highlights long‐term persistence of Emperor Penguin (Aptenodytes forsteri) colonies

Remote Sensing in Ecology and Conservation, EarlyView.
Remote sensing can reveal population dynamics of Antarctic penguin colonies. In this study, we analyze emperor penguin (Aptenodytes forsteri) guano stains in remote sensing imagery and discover colony presence predating known records for 18 colonies across Antarctica.
Martynas Bielinis, Michelle LaRue, Benjamin M. Kraemer, Catalina Munteanu   +3 more
wiley   +1 more source

A flexible and efficient Bayesian implementation of point process models for spatial capture-recapture data. [PDF]

Ecology, 2023
Zhang W, Chipperfield JD, Illian JB, Dupont P, Milleret C, de Valpine P, Bischof R.   +6 more
europepmc   +1 more source

Deep learning‐based super‐resolution reconstruction and improved YOLOv9 for efficient benthos detection: a case study at Lake Hamana, Japan

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents a UAV‐based framework that integrates deep learning‐based super‐resolution reconstruction and an enhanced YOLO detector to improve centimetre‐scale benthic organism monitoring. Using hermit crabs in Lake Hamana, a coastal lagoon in Japan, as a case study, the method substantially enhanced small‐object detection performance ...
Fan Zhao, Bangzhang Ma, Dianhan Xi, Jiaqi Wang, Yijia Chen, Yongying Liu, Xinlei Shao, Mowen Zhang, Guocheng Zhang, Jundong Chen, Katsunori Mizuno   +10 more
wiley   +1 more source

Spatial capture‐recapture can improve environmental impact assessments for large carnivores

Ecological Solutions and Evidence
Environmental Impact Assessments (EIAs) for large carnivores frequently rely on summary statistics or relative abundance indices to evaluate the effects of infrastructure development on predator populations.
Gonçalo Ferrão da Costa, Miguel Mascarenhas, Carlos Fonseca, Chris Sutherland   +3 more
doaj   +1 more source

Effect of spatial overdispersion on confidence intervals for population density estimated by spatial capture–recapture

Peer Community Journal
Spatially explicit capture–recapture models are used widely to estimate the density of animal populations. The population is represented by an inhomogeneous Poisson point process, where each point is the activity centre of an individual and density ...
Efford, Murray G., Fletcher, David
doaj   +1 more source

Estimating spatially variable and density-dependent survival using open-population spatial capture-recapture models. [PDF]

Ecology, 2023
Milleret C, Dey S, Dupont P, Brøseth H, Turek D, de Valpine P, Bischof R.   +6 more
europepmc   +1 more source

Modelling the surprising recolonisation of an understudied aquatic mammal in a highly urbanised area: fortune favoured the smooth‐coated otter in Singapore

Wildlife Biology, EarlyView.
Ever‐growing human activities present an active and continuing threat to many species throughout the world. Nevertheless, concerted conservation efforts in some regions have balanced these threats and allowed endangered species to recolonise former parts of their original ranges and reverse their decline.
Kilian Hughes, Justin M. J. Travis, Aurore Ponchon   +2 more
wiley   +1 more source