![]() Egypt Postage Stamps State Visit King Abdul Aziz of Saudi Arabia Scott # 256 Issued 1946 Block of 4 MNH $12.99 State Visit of King Abdul Aziz ibn Saud, 10m dp yellow-green, issued 10 January 1946 ![]() The effects of human visits on the use of a waterhole by endangered ungulates [An article from: Journal of Arid Environments] $4.95 This digital document is a journal article from Journal of Arid Environments, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: We report the impacts of human visits at a waterhole used by mountain gazelles, Gazella gazella, and Nubian ibex, Capra ibex nubiana, in the Ibex Reserve of Saudi Arabia. Our hypothesis was that the species that normally used the waterhole during the day, the typical period of human visits, would be negatively affected. The results did not support our hypothesis, as both the diurnal mountain gazelles and partly nocturnal Nubian ibex avoided the waterhole within 6h after human visits. We found no significant difference of waterhole use by Nubian ibex and mountain gazelles within the period of 6-12h or 12-24h after human visits. Given the high conservation concern of these species and the rarity of waterholes, we suggest that human visits continue to be regulated by allowing visits on non-consecutive days to give the ungulates opportunities to drink, especially during the summer and droughts when heat stresses are higher, animals are less tolerant of water deprivation, and there are less alternative waterholes. |
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