Denning behavior and den site selection of grizzly bears along the Parsnip River, British Columbia, Canada

Ursus ◽  
2005 ◽  
Vol 16 (1) ◽  
pp. 47-58 ◽  
Author(s):  
Lana M. Ciarniello ◽  
Mark S. Boyce ◽  
Douglas C. Heard ◽  
Dale R. Seip
Ursus ◽  
2012 ◽  
Vol 23 (2) ◽  
pp. 226-230 ◽  
Author(s):  
Nathan S. Libal ◽  
Jerrold L. Belant ◽  
Ramona Maraj ◽  
Bruce D. Leopold ◽  
Guiming Wang ◽  
...  

PLoS ONE ◽  
2013 ◽  
Vol 8 (10) ◽  
pp. e76410 ◽  
Author(s):  
Girish Arjun Punjabi ◽  
Ravi Chellam ◽  
Abi Tamim Vanak

2010 ◽  
Vol 88 (9) ◽  
pp. 905-913 ◽  
Author(s):  
S. Ross ◽  
R. Kamnitzer ◽  
B. Munkhtsog ◽  
S. Harris

We evaluated the habitat selection of 101 den sites used by 21 individual Pallas’s cats ( Otocolobus manul (Pallas, 1776) = Felis manul Pallas, 1776) in summer, winter, and the maternal period in central Mongolia using generalized linear mixed models. Pallas’s cats used rock crevices and marmot burrows as dens for giving birth, raising young, thermoregulation, feeding, mating, and as important cover from predators. Den sites were selected with higher proportions of rocky and ravine habitats in the surroundings, and in winter Pallas’s cats avoided the presence of humans. Habitat and structural features suggested that dens were selected to minimize predation risk. Selection of dens in shade in summer and the use of insulated dens of Siberian marmots ( Marmota sibirica (Radde, 1862)) in winter indicated that thermal properties may also be important. We contend that dens are a critical habitat for Pallas’s cats and the availability of suitable den sites is critical for the conservation of the species. Repeated use of maternal dens suggested they may be a limiting resource. Although marmot dens are unlikely to be limiting at present, over hunting of marmots is likely to reduce burrow availability in the future.


2016 ◽  
Vol 65 (1) ◽  
pp. 72-79 ◽  
Author(s):  
Mihály Márton ◽  
Ferenc Markolt ◽  
László Szabó ◽  
Lajos Kozák ◽  
József Lanszki ◽  
...  

2017 ◽  
Vol 39 (2) ◽  
pp. 161 ◽  
Author(s):  
Bradley Smith ◽  
Anne-Louise Vague

Little is known about reproduction and den site selection by free-ranging dingoes. We present observations of den sites used by dingoes inhabiting a large-scale mining operation located in the Great Sandy Desert, Western Australia. We observed 24 dens concentrated within a 1-km radius. Den sites were generally situated in elevated positions overlooking the surrounding area, were a short distance from food and water resources, required vegetation (particularly spinifex grass) to provide a firm foundation and stable ceiling in the soft sand, and had single den openings that faced away from the rising and daytime sun. Distance to human structures or activity did not appear to influence site selection. Four of the dens were active, containing a total of 37 pups aged between two and four weeks of age. One den contained 18 pups of different ages, indicating that communal denning was also occurring. The high number of breeding females within close proximity suggests that multiple family groups are able to share resources and live in close proximity. Our findings highlight the importance of human-modified areas and abundance of resources in the reproduction and breeding site selection of dingoes.


1991 ◽  
Vol 24 (12) ◽  
pp. 83-91
Author(s):  
D. C. P. Casarini ◽  
E. Gloeden ◽  
R. C. de A. Cunha

Land treatment is defined as the hazardous waste management technology related to application and incorporation of waste into the defined treatment zone of the soil where will occur the degradation, transformation and immobilization of the constituents contained in the applied waste, to ensure protection of surface water and groundwater. This paper describes some criteria for site selection of land treatment facilities used by petroleum refineries, as well as the engineering design, management practices to optimize the process and closure and post-closure techniques.


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