Habitat Fragmentation by a Levee and Its Impact on Frog Population in the Civilian Control Zone

• 영문명: Habitat Fragmentation by a Levee and Its Impact on Frog Population in the Civilian Control Zone
• 발행기관: 한국습지학회
• 저자명: Jaehyoung Ju Jae Hyun Kim Seung Ho Kim
• 간행물 정보: 『한국습지학회지』제18권 제2호, 113~120쪽, 전체 8쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 2016.05.01

영문 초록

We examined whether an artificial levee constructed on prime amphibian habitat influences fragmentation. Four different sites on both sides of a levee in the Civilian Control Zone(CCZ) were probed. Sites 1 and 2 are rice paddies on one side of the levee, and Site 3 is the stream that locates in the same side. All the three sites have water conditions of seasonal variance. On the other side, Site 4 consists of rice paddies with a stable condition of water supply, irrigated through a canal. The research sites were frequented and the frog populations were closely monitored. The investigation identified five species. Pelophylax nigromaculatus was the most frequent (n=295), followed by Hyla japonica (n=220) and Glandirana rugosa (n=124). Three Bufo gargarizans and eight Rana coreana were also found. The amphibians, however, were found to relocate themselves according to water condition to rice paddies or stream only within one side of the levee. Despite having ample sources of water and foods, Site 4 lacked large populations of frogs, even when droughts came. Both the species dominance index and the richness index indicated a more favorable living condition of the one side of the levee (Sites 1 and 2) over the other.

목차

1. Introduction

2. Methods

3. Results

4. Discussion

References

키워드

amphibians Civilian Control Zone levee habitat fragmentation