Spatio-temporal distribution pattern and the correlation with key environmental factors of Eurasian otter (Lutra lutra) in Northeast China
Long-term baselines of species distribution are valuable for understanding factors that influence species distribution and conservation management. We revised and supplemented the historical distribution records of the Eurasian otter using interviews and questionnaires. The species distribution mode...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-08-01
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| Series: | Global Ecology and Conservation |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989423001270 |
| _version_ | 1797823324026306560 |
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| author | Minhao Chen Chao Zhang Aihua Fu Guoqiang Shi Jiadong Wang Zhenjie Zhan Xiaofeng Luan |
| author_facet | Minhao Chen Chao Zhang Aihua Fu Guoqiang Shi Jiadong Wang Zhenjie Zhan Xiaofeng Luan |
| author_sort | Minhao Chen |
| collection | DOAJ |
| description | Long-term baselines of species distribution are valuable for understanding factors that influence species distribution and conservation management. We revised and supplemented the historical distribution records of the Eurasian otter using interviews and questionnaires. The species distribution model was used to reconstruct the distribution pattern of Eurasian otter in Northeast China across the last 70 years, and the correlation between the change in distribution pattern and environmental factors was calculated. Our results show that the distribution of otters in Northeast China has decreased by 46 % and the occurrence point record has decreased by 60 % over the past 70 years. We found that the spatial distribution pattern of suitable habitats for otters is positively correlated with precipitation in the driest season and percentage of forest land, and negatively correlated with density of residential spots and percentage of cultivated land. In terms of temporal changes in distribution, the distribution of suitable habitats for otters may shrink in time affected by density of residential spots and percentage of cultivated land. Over the past 70 years, otter distribution has declined mainly in low-elevation plains. Controlling human disturbances, especially at the border between mountains and plains, could be key to the recovery of populations of otters. Planning for the protection of freshwater ecosystems in the Greater Khingan Mountains should be prioritized. |
| first_indexed | 2024-03-13T10:22:24Z |
| format | Article |
| id | doaj.art-fcdb3bf2b95343ae9debb5868ecfd889 |
| institution | Directory Open Access Journal |
| issn | 2351-9894 |
| language | English |
| last_indexed | 2024-03-13T10:22:24Z |
| publishDate | 2023-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Global Ecology and Conservation |
| spelling | doaj.art-fcdb3bf2b95343ae9debb5868ecfd8892023-05-20T04:30:11ZengElsevierGlobal Ecology and Conservation2351-98942023-08-0144e02492Spatio-temporal distribution pattern and the correlation with key environmental factors of Eurasian otter (Lutra lutra) in Northeast ChinaMinhao Chen0Chao Zhang1Aihua Fu2Guoqiang Shi3Jiadong Wang4Zhenjie Zhan5Xiaofeng Luan6School of Ecology and Nature Conservation, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, ChinaNational Park (Protected Area) Development Center, National Forestry and Grassland Administration, No. 18 Hepingli East Street, Dongcheng District, Beijing 100714, ChinaSchool of Ecology and Nature Conservation, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, ChinaJilin Province Joint Key Laboratory of Changbai Mountain Biocoenosis and Biodiversity, Changbai Mountain Academy of Sciences, No. 101 Baoshan Road, Chibei District, Changbai Mountain Management Committee, Jilin Province 133613, ChinaSchool of Ecology and Nature Conservation, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, ChinaSchool of Ecology and Nature Conservation, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, ChinaSchool of Ecology and Nature Conservation, Beijing Forestry University, No. 35 Tsinghua East Road, Haidian District, Beijing 100083, China; Corresponding author.Long-term baselines of species distribution are valuable for understanding factors that influence species distribution and conservation management. We revised and supplemented the historical distribution records of the Eurasian otter using interviews and questionnaires. The species distribution model was used to reconstruct the distribution pattern of Eurasian otter in Northeast China across the last 70 years, and the correlation between the change in distribution pattern and environmental factors was calculated. Our results show that the distribution of otters in Northeast China has decreased by 46 % and the occurrence point record has decreased by 60 % over the past 70 years. We found that the spatial distribution pattern of suitable habitats for otters is positively correlated with precipitation in the driest season and percentage of forest land, and negatively correlated with density of residential spots and percentage of cultivated land. In terms of temporal changes in distribution, the distribution of suitable habitats for otters may shrink in time affected by density of residential spots and percentage of cultivated land. Over the past 70 years, otter distribution has declined mainly in low-elevation plains. Controlling human disturbances, especially at the border between mountains and plains, could be key to the recovery of populations of otters. Planning for the protection of freshwater ecosystems in the Greater Khingan Mountains should be prioritized.http://www.sciencedirect.com/science/article/pii/S2351989423001270Lutra lutraHistorical dataHuman impactDistribution shrinkageRefugia |
| spellingShingle | Minhao Chen Chao Zhang Aihua Fu Guoqiang Shi Jiadong Wang Zhenjie Zhan Xiaofeng Luan Spatio-temporal distribution pattern and the correlation with key environmental factors of Eurasian otter (Lutra lutra) in Northeast China Global Ecology and Conservation Lutra lutra Historical data Human impact Distribution shrinkage Refugia |
| title | Spatio-temporal distribution pattern and the correlation with key environmental factors of Eurasian otter (Lutra lutra) in Northeast China |
| title_full | Spatio-temporal distribution pattern and the correlation with key environmental factors of Eurasian otter (Lutra lutra) in Northeast China |
| title_fullStr | Spatio-temporal distribution pattern and the correlation with key environmental factors of Eurasian otter (Lutra lutra) in Northeast China |
| title_full_unstemmed | Spatio-temporal distribution pattern and the correlation with key environmental factors of Eurasian otter (Lutra lutra) in Northeast China |
| title_short | Spatio-temporal distribution pattern and the correlation with key environmental factors of Eurasian otter (Lutra lutra) in Northeast China |
| title_sort | spatio temporal distribution pattern and the correlation with key environmental factors of eurasian otter lutra lutra in northeast china |
| topic | Lutra lutra Historical data Human impact Distribution shrinkage Refugia |
| url | http://www.sciencedirect.com/science/article/pii/S2351989423001270 |
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