부산대학교 도서관

Due to the increase in biological resource exchanges between countries in modern society, many foreign resources alien species are now being introduced in Korea. Although foreign resources alien species were first introduced to promote its positive goal, some invasive and highly proliferative foreign lives alien species caused negative effects such as threatening indigenous species and its biodiversity. One of the most representative invasive aliens is the nutria(Myocastor Coypus). The current population has decreased significantly though national control, but the concern of re-proliferation in environmental and management aspects still remains. Therefore, this study compared KDE (Kernel Density Evaluation) and MCP (Minimum Convex Polyon), which are frequently used in current movement studies by introducing Brownian Bridge Movement Model that is not widely utilized in Korea. Further research was conducted on the movement, one of the species’ ecological basic characteristics, and the preference for habitat was confirmed with environmental variable, Normalized Difference Vegetation Index(NDVI). In this study, the average movement size of the individual species of the BBMM method was 1.15 ha (50%), 10.71 ha (90%) and 16.33 (95%). Moreover, an analysis of individual sex and seasonal movement using statistical hypothesis testing method, it showed that for sex, there was no difference in movement between sexes, but movement in winter being larger than for other seasons based on the BBMM method. A comparison of the movement size and the form in which the movements are shaped, it’s confirmed that BBMM method is more conservative than the KDE method. As a result of analyzing habitat preferences with environmental variable, verification was made that wetlands and surface water systems were formed and that shelters were established in environments rich in certain vegetation.