Results 11 to 20 of about 89,525 (293)

Camera trapping as a method for estimating abundance of Mexican wolves

open access: yesWildlife Society Bulletin, 2023
Estimating wildlife abundance, particularly for rare and elusive species, is challenging because of time, cost, and methodological constraints. The Mexican wolf (Canis lupus baileyi), a federally‐listed endangered subspecies of gray wolf, is currently ...
Brianna M. Russo   +5 more
doaj   +1 more source

Arboreal camera trapping: a reliable tool to monitor plant‐frugivore interactions in the trees on large scales

open access: yesRemote Sensing in Ecology and Conservation, 2022
Although arboreal camera trapping is a growing field, it has rarely been used for monitoring plant‐frugivore interactions in the trees. Frugivore foraging behavior generally occurs in trees, hence arboreal camera trapping can be a potentially useful tool
Chen Zhu   +8 more
doaj   +1 more source

SOCRATES: Introducing Depth in Visual Wildlife Monitoring Using Stereo Vision

open access: yesSensors, 2022
The development and application of modern technology are an essential basis for the efficient monitoring of species in natural habitats to assess the change of ecosystems, species communities and populations, and in order to understand important drivers ...
Timm Haucke   +2 more
doaj   +1 more source

Single-atom trapping in holographic 2D arrays of microtraps with arbitrary geometries [PDF]

open access: yes, 2014
We demonstrate single-atom trapping in two-dimensional arrays of microtraps with arbitrary geometries. We generate the arrays using a Spatial Light Modulator (SLM), with which we imprint an appropriate phase pattern on an optical dipole trap beam prior ...
Barredo, Daniel   +7 more
core   +9 more sources

Use of camera trapping in determining Iberian lynx population parameters: The use area and its limitations [PDF]

open access: yes, 2011
Below are the results of the survey of the Iberian lynx obtained with camera-trapping between 2000 and 2007 in Sierra Morena. Two very important aspects of camera-trapping concerning its efficiency are also analyzed.
Agudin, S.   +8 more
core   +2 more sources

Assessing the status of wild felids in a highly-disturbed commercial forest reserve in Borneo and the implications for camera trap survey design. [PDF]

open access: yesPLoS ONE, 2013
The proliferation of camera-trapping studies has led to a spate of extensions in the known distributions of many wild cat species, not least in Borneo. However, we still do not have a clear picture of the spatial patterns of felid abundance in Southeast ...
Oliver R Wearn   +4 more
doaj   +1 more source

An open-access platform for camera-trapping data [PDF]

open access: yes, 2018
In southern Mexico, local communities have been playing important roles in the design and collection of wildlife data through camera-trapping in community-based monitoring of biodiversity projects. However, the methods used to store the data have limited
Lavariega, Mario César
core   +3 more sources

Low-cost optical manipulation using hanging droplets of PDMS [PDF]

open access: yes, 2015
We propose and demonstrate a low-cost optical micromanipulation system that makes use of simple microfrabricated components coupled to a smartphone camera for imaging. Layering hanging droplets of polydimethylsiloxane (PDMS) on microscope coverslips, and
Ashkin   +20 more
core   +3 more sources

Distance sampling with camera traps [PDF]

open access: yesMethods in Ecology and Evolution, 2017
* Reliable estimates of animal density and abundance are essential for effective wildlife conservation and management. Camera trapping has proven efficient for sampling multiple species, but statistical estimators of density from camera trapping data for species that cannot be individually identified are still in development. * We extend point-transect
Howe, E.   +3 more
openaire   +5 more sources

Long-term monitoring reveals the value of continuous trapping to curtail the effects of free-roaming cats in protected island habitats

open access: yesGlobal Ecology and Conservation, 2022
Free-roaming domestic cats (Felis catus) pose numerous risks to biodiversity conservation, especially in island ecosystems. However, the removal of cats is costly, labor-intensive, and often demands more resources than land managers have at their ...
D.J. Herrera, J.D. Dixon, M.V. Cove
doaj   +1 more source

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