Stop the decline of China's wild otters

doi:10.1126/science.abj2530

GSTDTAP > 气候变化

DOI	10.1126/science.abj2530
	Stop the decline of China's wild otters
	Qinguo Wei; Xiaoyang Wu; Xiaodong Gao; Honghai Zhang
	2021-05-21
发表期刊	Science
出版年	2021
英文摘要	China is home to three species of otters: the Eurasian otter ( Lutra lutra ), the Asian small-clawed otter ( Aonyx cinereus ), and the smooth-coated otter ( Lutrogale perspicillata ) ([ 1 ][1]). Otters are the flagship species of ([ 2 ][2], [ 3 ][3]), and important indicators of health for ([ 4 ][4]), freshwater ecosystems. Although once widely distributed throughout China, wild otter populations declined in the late 20th century ([ 5 ][5], [ 6 ][6]), and all three species have now been listed as Endangered on the Red List of China's Vertebrates ([ 7 ][7]). Sightings of wild otters in China are rare, and the smooth-coated otter has not been recorded in the wild for more than 10 years ([ 6 ][6], [ 8 ][8]). To prevent the extinction of these otter species, China must do more to protect them. From the 1950s to 1980s, many Chinese wild otters were killed because their pelts and other body parts were used in medicine ([ 8 ][8]). In 1989, all three otter species were ranked as class II on China's National Key Protected Species List ([ 9 ][9]), but their populations continued to decline ([ 6 ][6]). The continued catastrophic decline of otter populations likely resulted from overexploitation, habitat loss, water pollution, and food shortages ([ 6 ][6], [ 10 ][10]). Because otters sometimes hunt in aquaculture fishponds, they are also at risk of conflict with those in the aquaculture industry who consider them to be pests ([ 11 ][11]). To protect Chinese wild otters, a nationwide survey should be conducted to identify their habitat sites and the status of current populations ([ 3 ][3], [ 5 ][5]). The Chinese government should then implement strict measures to protect the habitats identified by the survey. Policies should aim to prevent water pollution and should ban fishing, as did the recent policy protecting the Yangtze river ([ 12 ][12]). More research, including assessments of habitat water quality, habitat and food selection mechanisms, population dynamics, and genetic diversity, should be carried out to inform conservation measures. Ecological education should make the local residents, especially those working in aquaculture, aware of the value of wild otters. If China can continue to improve the otters' habitat, the species will be more likely to avoid human contact, giving these vulnerable populations a chance to recover. 1. [↵][13]1. A. T. Smith, 2. Y. Xie , Mammals of China (Princeton University Press, 2013), pp. 318–320. 2. [↵][14]1. S. Stevens, 2. J. Organ, 3. T. L. Serfass , IUCN Otter Specialist Group Bulletin 28(a), 150 (2011). [OpenUrl][15] 3. [↵][16]1. C. Cianfrani et al ., Biol. Conserv. 144, 2068 (2011). [OpenUrl][17] 4. [↵][18]1. H. Kruuk , Otters: Ecology, Behaviour and Conservation (Oxford University Press, 2006), pp. 212–215. 5. [↵][19]1. S. Perkins , Science, 10.1126/science.aal0633 (2017). 6. [↵][20]1. L. Zhang et al ., Biol. Conserv. 228, 259 (2018). [OpenUrl][21] 7. [↵][22]1. Z. Jiang et al ., Biodivers. Sci. 24, 500 (2016) [in Chinese]. [OpenUrl][23] 8. [↵][24]1. F. Li, 2. B. P. L. Chan , Oryx 52, 619 (2017). [OpenUrl][25] 9. [↵][26]The Ministry of Forestry, “The National Key Protected Species List,” Wild Life 2, 11 (1989) [in Chinese]. [OpenUrl][27] 10. [↵][28]1. N. Duplaix, 2. M. Savage , The Global Otter Conservation Strategy (IUCN/SSC Otter Specialist Group, 2018). pp. 5–29. 11. [↵][29]1. Z. Liu , China Three Gorges Trib. 262, 37 (2013) [in Chinese]. [OpenUrl][30] 12. [↵][31]1. Z. Mei, 2. P. Cheng, 3. K. Wang, 4. Q. Wei, 5. D. Wang , Science 367, 1314 (2020). 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领域	气候变化 ; 资源环境
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/328802
专题	气候变化资源环境科学
推荐引用方式 GB/T 7714	Qinguo Wei,Xiaoyang Wu,Xiaodong Gao,et al. Stop the decline of China's wild otters[J]. Science,2021.
APA	Qinguo Wei,Xiaoyang Wu,Xiaodong Gao,&Honghai Zhang.(2021).Stop the decline of China's wild otters.Science.
MLA	Qinguo Wei,et al."Stop the decline of China's wild otters".Science (2021).