삼척시산불지역에서의 나방류에 관한 종다양성 변화 = Changes of Species Diversity on Moth Communities at Forest Fire Region in Samcheok, Korea

국문 초록 (Abstract)

2000년 삼척 동해안산불이 나방군집에 미친 영향을 조사하였다. 조사는 3개의 조사지(지점1: 미피해지역, 지점2: 지표화 피해지역, 지점3: 수관화 피해지역)를 설정하여 2006부터 2009년 까지 1년에 4회 UV 라이트 트랩으로 실시하였다. 그 결과, 3개의 조사지에서 30과 727종 3,804개체를 채집하였다(지점1: 27과 505종 1,727개체, 지점2: 24과 353종 1,193개체, 지점3: 25과 340종 885개체). 밤나방과, 명나방과, 자나방과와 잎말이나방과는 종수와 개체수가 3개의 조사지에서 상위를 점했다. 종수, 개체수, 종다양도(H') 모두 지점1에서 가장 높았다. 유사도(${\alpha}$-Index)는 2006년에는 지점2와 3이 더 높았지만, 2009년에는 지점1과 2가 더 높았다. 나방류를 유충기의 기주로 16개 카테고리로 나누어 군집변화를 분석하였다. 지점3에서 초본식성의 나방류의 개체수는 지속적으로 감소했지만, 목본식성의 개체수의 비율은 지속적으로 증가했다. 이 연구결과, 나방군집은 산불 이후 식생변화와 더불어 회복되었고 지표화 피해지역에서 나방군집의 재생은 수관화 피해지역보다 빠른 것으로 나타났다.

다국어 초록 (Multilingual Abstract)

We investigated moth communities in Samcheok, Korea, to elucidate the influence of the East Coast Fire in 2000. Moths were collected with UV light traps 4 times a year from 2006 to 2009 at 3 sites: Unburned area (Site 1), Surface fire area (Site 2), and Crown fire area (Site 3) sites, respectively. A total of 3,804 individuals belonging to 727 species from 30 families were captured at the 3 study 1,727 individuals of 505 species (27 families) at Site 1, 1,193 individuals of 353 species (24 families) at Site 2, and 885 individuals of 340 species (25 families) at Site 3. Species richness and individuals of Noctuidae, Pyralidae, Geometridae, and Tortricidae were the highest at all 3 sites. All of species richness, individuals, and species diversity (H') were the highest in Site 1 for 4 years. The index of similarity (${\alpha}$-Index) was higher between Site 2 and 3 in 2006, while higher between Site 1 and 2 in 2009. Moths were grouped into 16 categories by hosts of the larval stage. Individuals of moths of herbaceous feeding habit continuously decreased at Site 3, but proportion of individuals of tree feeding habits continuously increased. The present results showed that moth communities was relatively recovered according to vegetation change after forest fire and regeneration of moth communities in surface fire area was more faster than in crown fire area.

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