scholarly journals Spatial capture–recapture with multiple noninvasive marks: An application to camera‐trapping data of the European wildcat ( Felis silvestris ) using R package multimark

2020 ◽  
Vol 10 (24) ◽  
pp. 13968-13979
Author(s):  
Lea Maronde ◽  
Brett T. McClintock ◽  
Urs Breitenmoser ◽  
Fridolin Zimmermann
Keyword(s):  
R Package ◽  
Camera Trapping ◽  
Felis Silvestris ◽  
European Wildcat ◽  
Capture Recapture

scholarly journals Using camera traps to study the elusive European Wildcat Felis silvestris silvestris Schreber, 1777 (Carnivora: Felidae) in central Germany: what makes a good camera trapping site?

2019 ◽  
Vol 11 (4) ◽  
pp. 13421-13431 ◽  
Author(s):  
Harald Wening ◽  
Lynne Werner ◽  
Matthias Waltert ◽  
Markus Port
Keyword(s):  
Human Disturbance ◽  
Camera Trapping ◽  
Trapping Site ◽  
Felis Silvestris ◽  
Central Germany ◽  
Capture Success ◽  
Felis Silvestris Silvestris ◽  
European Wildcat ◽  
Capture Rates ◽  
Trapping Sites

Camera traping is a widely used method to study the abundance and population density of elusive terrestrial animals.  To make full use of this method, it is necessary to obtain high photographic capture rates of the target species.  We examine what characteristics of camera trapping sites are associated with high photographic capture rates of European Wildcat Felis silvestris silvestris.  We measured Wildcat capture rates across 25 camera trapping sites located in a 20km² study area within an unprotected low mountain range forest in central Germany.  We measured the distance of each trapping site to the forest boundary, to the next watercourse, and to the next human settlement, and broadly defined the type of forest structure the site was located in.  None of these site characteristics, however, predicted wildcat photographic capture success.  We also examined the degree of human disturbance at the site, measured as the photographic capture rate of humans (including vehicles).  Wildcats were detected at similar rates on dirt or gravel roads (heavily used by humans) as on soft-surfaced paths or logging trails (less frequently used by humans), and the degree of human disturbance across sites did not affect wildcat capture success.  We, therefore, suggest that trail features such as course, curvature and width, or vegetation density along the trail are more important determinants of Wildcat capture success than habitat characteristics.  We conclude that for European Wildcats, as for many larger felids, forest roads provide suitable camera trapping sites and that Wildcats are fairly tolerant towards human traffic on these roads.

scholarly journals Detecting the elusive Scottish wildcat Felis silvestris silvestris using camera trapping

Oryx ◽  
2014 ◽  
Vol 49 (2) ◽  
pp. 207-215 ◽  
Author(s):  
Kerry Kilshaw ◽  
Paul J. Johnson ◽  
Andrew C. Kitchener ◽  
David W. Macdonald
Keyword(s):  
Conservation Management ◽  
Camera Trap ◽  
Camera Trapping ◽  
Domestic Cat ◽  
Estimation Methods ◽  
Spatially Explicit ◽  
Felis Silvestris ◽  
Felis Silvestris Silvestris ◽  
Capture Recapture ◽  
The Impact

AbstractPopulation monitoring is important for conservation management but difficult to achieve for rare, cryptic species. Reliable information about the Critically Endangered Scottish wildcat Felis silvestris silvestris is lacking because of difficulties in morphological and genetic identification, resulting from extensive hybridization with feral domestic cats Felis catus. We carried out camera-trap surveys in the Cairngorms National Park, UK, to examine the feasibility of camera trapping, combined with a pelage identification method, to monitor Scottish wildcats. Camera trapping detected individually identifiable wildcats. Of 13 individual wild-living cats, four scored as wildcats based on pelage characters and the rest were wildcat × domestic cat hybrids. Spatially explicit capture–recapture density estimation methods generated a density of wild-living cats (wildcats and hybrids) of 68.17 ± SE 9.47 per 100 km2. The impact of reducing trapping-grid size, camera-trap numbers and survey length on density estimates was investigated using spatially explicit capture–recapture models. Our findings indicate camera trapping is more effective for monitoring wildcats than other methods currently used and capture success could be increased by using bait, placing camera stations ⩽ 1.5 km apart, increasing the number of camera stations, and surveying for 60–70 days. This study shows that camera trapping is effective for confirming the presence of the wildcat in potential target areas for conservation management.

scholarly journals The wildcat Felis silvestris in northern Turkey: assessment of status using camera trapping

Oryx ◽  
2011 ◽  
Vol 45 (1) ◽  
pp. 112-118 ◽  
Author(s):  
Özgün Emre Can ◽  
İrfan Kandemi̇r ◽  
İnci̇ Togan
Keyword(s):  
Population Size ◽  
Camera Traps ◽  
Sampling Effort ◽  
Felis Silvestris ◽  
Forest Patch ◽  
Western Turkey ◽  
Lack Of Information ◽  
The Status ◽  
Capture Recapture ◽  
Estimate Population Size

AbstractThe wildcat Felis silvestris is a protected species in Turkey but the lack of information on its status is an obstacle to conservation initiatives. To assess the status of the species we interviewed local forestry and wildlife personnel and conducted field surveys in selected sites in northern, eastern and western Turkey during 2000–2007. In January–May 2006 we surveyed for the wildcat using 16 passive infrared-trigged camera traps in Yaylacı k Research Forest, a 50-km2 forest patch in Yenice Forest in northern Turkey. A total sampling effort of 1,200 camera trap days over 40 km2 yielded photo-captures of eight individual wildcats over five sampling occasions. Using the software MARK to estimate population size the closed capture–recapture model M0, which assumes a constant capture probability among all occasions and individuals, best fitted the capture history data. The wildcat population size in Yaylacı k Research Forest was estimated to be 11 (confidence interval 9–23). Yenice Forest is probably one of the most important areas for the long-term conservation of the wildcat as it is the largest intact forest habitat in Turkey with little human presence, and without human settlements, and with a high diversity of prey species. However, it has been a major logging area and is not protected. The future of Yenice Forest and its wildcat population could be secured by granting this region a protection status and enforcing environmental legislation.

scholarly journals Estimation of the Iberian lynx (Lynx pardinus) population in the Doñana area, SW Spain, using capture–recapture analysis of camera-trapping data

2010 ◽  
Vol 57 (2) ◽  
pp. 355-362 ◽  
Author(s):  
German Garrote ◽  
Ramon Perez de Ayala ◽  
Pablo Pereira ◽  
Francisco Robles ◽  
Nicolas Guzman ◽  
...  
Keyword(s):  
Camera Trapping ◽  
Lynx Lynx ◽  
Iberian Lynx ◽  
Lynx Pardinus ◽  
Sw Spain ◽  
Capture Recapture
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