scholarly journals Spatial density estimates of Eurasian lynx ( Lynx lynx ) in the French Jura and Vosges Mountains

2019 ◽  
Vol 9 (20) ◽  
pp. 11707-11715
Author(s):  
Olivier Gimenez ◽  
Sylvain Gatti ◽  
Christophe Duchamp ◽  
Estelle Germain ◽  
Alain Laurent ◽  
...  
2019 ◽  
Author(s):  
Olivier Gimenez ◽  
Sylvain Gatti ◽  
Christophe Duchamp ◽  
Estelle Germain ◽  
Alain Laurent ◽  
...  

AbstractObtaining estimates of animal population density is a key step in providing sound conservation and management strategies for wildlife. For many large carnivores however, estimating density is difficult because these species are elusive and wide-ranging. Here, we focus on providing the first density estimates of the Eurasian lynx (Lynx lynx) in the French Jura and Vosges mountains. We sampled a total of 413 camera trapping sites (with 2 cameras per site) between January 2011 and April 2016 in seven study areas across seven counties of the French Jura and Vosges mountains. We obtained 592 lynx detections over 19,035 trap days in the Jura mountain and 0 detection over 6,804 trap days in the Vosges mountain. Based on coat patterns, we identified a total number of 92 unique individuals from photographs, including 16 females, 13 males and 63 individuals of unknown sex. Using spatial capture-recapture (SCR) models, we estimated abundance in the study areas between 5 (SE = 0.1) and 29 (0.2) lynx and density between 0.24 (SE = 0.02) and 0.91 (SE = 0.03) lynx per 100 km2. We also provide a comparison with non-spatial density estimates and discuss the expected discrepancies. Our study is yet another example of the advantage of combining SCR methods and non-invasive sampling techniques to estimate density for elusive and wide-ranging species, like large carnivores. While the estimated densities in the French Jura mountain are comparable to other lynx populations in Europe, the fact that we detected no lynx in the Vosges mountain is alarming. Connectivity should be encouraged between the French Jura mountain, the Vosges mountain and the Palatinate Forest in Germany where a reintroduction program is currently ongoing. Our density estimates will help in setting a baseline conservation status for the lynx population in France.


2021 ◽  
Author(s):  
Joe Premier ◽  
Martin Gahbauer ◽  
Franz Leibl ◽  
Marco Heurich

Oryx ◽  
2015 ◽  
Vol 50 (2) ◽  
pp. 239-243 ◽  
Author(s):  
Justine S. Alexander ◽  
Jeremy J. Cusack ◽  
Chen Pengju ◽  
Shi Kun ◽  
Philip Riordan

AbstractIn high-altitude settings of Central Asia the Endangered snow leopard Panthera uncia has been recognized as a potential umbrella species. As a first step in assessing the potential benefits of snow leopard conservation for other carnivores, we sought a better understanding of the presence of other carnivores in areas occupied by snow leopards in China's Qilianshan National Nature Reserve. We used camera-trap and sign surveys to examine whether other carnivores were using the same travel routes as snow leopards at two spatial scales. We also considered temporal interactions between species. Our results confirm that other carnivores, including the red fox Vulpes vulpes, grey wolf Canis lupus, Eurasian lynx Lynx lynx and dhole Cuon alpinus, occur along snow leopard travel routes, albeit with low detection rates. Even at the smaller scale of our camera trap survey all five carnivores (snow leopard, lynx, wolf, red fox and dhole) were observed. Kernel density estimates suggested a high degree of temporal overlap between the snow leopard and the fox, and the snow leopard and the lynx, as indicated by high overlap coefficient estimates. There is an opportunity to consider protective measures at the local scale that would benefit various species simultaneously. However, it should also be recognized that snow leopard conservation efforts could exacerbate human–wildlife conflicts through their protective effect on other carnivore species.


2010 ◽  
Vol 16 (4) ◽  
pp. 409-418
Author(s):  
Anna C. Danell ◽  
Henrik Andrén
Keyword(s):  

PLoS ONE ◽  
2014 ◽  
Vol 9 (3) ◽  
pp. e90469 ◽  
Author(s):  
Johanna Painer ◽  
Katarina Jewgenow ◽  
Martin Dehnhard ◽  
Jon M. Arnemo ◽  
John D. C. Linnell ◽  
...  

Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 864
Author(s):  
Xiaoming Tang ◽  
Shupei Tang ◽  
Xiaoyu Li ◽  
Dalai Menghe ◽  
Wuliji Bao ◽  
...  

Revealing the behavioral relationships between predators and their prey is fundamental in understanding the community structure and ecosystem functions of such animals. This study aimed at detecting the population size and activity patterns of Eurasian lynx (Lynx lynx) (along with its prey) by camera trapping monitoring from 2014 to 2017 at the Saihanwula nature reserve in central Inner Mongolia. The total effective trapping days were 29,892 and 20 lynx were identified from 343 trapping photos based on the inner side patterns of their forelimbs. The daily activity rhythms of the lynx overlapped with those of different prey in different seasons. The yearly activity pattern of the lynx was influenced by its main prey’s biology. In conclusion, this study reveals that the activity patterns of the top predator matched those of its prey in different time periods. Habitat management strategies promoting the restoration of prey communities would benefit the lynx in maintaining a stable community structure.


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