Proceedings of the National Institute of Ecology of the Republic of Korea

국립생태원 (National Institute of Ecology)
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Grid Method Applied for Establishing the Ecological and Natural Map: A Review Based on Results of Surveys of Endangered Mammals

  • Yong-Ki, Kim (Ecoinformatics & Control Institute) ;
  • Jeong-Boon, Lee (Ecoinformatics & Control Institute) ;
  • Sung Je, Lee (National Institute of Ecology) ;
  • Jang Sam, Cho (National Institute of Ecology) ;
  • Hyosun, Leem (National Institute of Ecology)
  • 투고 : 2022.11.12
  • 심사 : 2022.12.29
  • 발행 : 2023.02.01
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초록

We analyzed data of endangered mammals in the 1st grade zone of the Ecological and Natural Map of Korea that were obtained through 202 field surveys over six years. Five endangered mammal species were identified including otters, long-tailed gorals, martens, leopard cats, and flying squirrels. The total number of habitat traces collected was 918, of which 897 traces (97.7%) were excrement types. The total surveyed distance was 697.7 km and there were 2,184 grids of 250×250 m each. Of these grids, 441 or 20.2% were confirmed as habitats of endangered mammals. Moreover, we analyzed results of repeated surveys in the same area by converting them into individual one-time surveys, accounting for 23.1% of the total area. The flying squirrel showed a low correlation with the frequency of field surveys but showed many habitats in a specific season. Leopard cats and martens were correlated with the frequency of field surveys. Results of analysis confirm that the grid method used for establishing the Ecological and Natural Map is unsuitable for the habitat division of flying squirrels, otters, leopard cats, and martens, and it does not reflect the actual habitats of these four species. Therefore, we propose that the concept of the habitat grid of species must be reevaluated and improved, specifically for endangered mammals.

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과제정보

This study was conducted based on the results of the National Ecological Institute's National Natural Environment Survey and the Ecological and Natural Map Grade Change Survey. And this work was supported by a grant from the 5th National Ecosystem Survey of the National Institute of Ecology (NIE), funded by the Ministry of Environment (MOE) of the Republic of Korea (NIE-A-2021-01). Furthermore, we thank Ms. Layla Gwak, Indianapolis, who reads the original manuscript before submission.

참고문헌

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