tailieunhanh - Diversity and structure of the butterfly assemblages in tropical forest ecosystems

At the initial step of SFP study the main objective is to measure of some parameters of the butterfly assemblage structures in different habitats and seasons within a large forest massif. Absence of differences between diversities and structures of butterfly assemblages in some particular habitats confirms a null-hypothesis. | HỘI NGHỊ KHOA HỌC TOÀN QUỐC VỀ SINH THÁI VÀ TÀI NGUYÊN SINH VẬT LẦN THỨ 4 DIVERSITY AND STRUCTURE OF THE BUTTERFLY ASSEMBLAGES IN TROPICAL FOREST ECOSYSTEMS A. L. MONASTYRSKII Vietnam-Russia Tropical Research Centre Research of the general structural-functional patterns (SFP) of the tropical forest ecosystems includes a number of complex multilevel problems. Planning and implementation of these objectives are possible on a limit number of the tropical ecosystem inhabitants. Butterflies is a good model group for such studies (Tangah et al., 2004; Cleary & Genner, 2006; New, 1998). They represent a convenient object for solving the problems related to the specific features of geographic, landscape, seasonal, and climatic distribution of species. Among many reasons that could be named to justify the use of this group as an object for solving the above problems, the following are most important: (1) Butterfly taxonomy is well-developed; (2) They are present in practically all the known tropical biotopes of Vietnam; (3) Their life cycle is associated with specific host plants; (4) Butterflies can be easily recorded and counted in nature, and can therefore be used for demonstrating temporal (seasonal) and spatial structures. Studies demonstrate that the butterfly diversity within the natural ecosystems depends on some different factors most important of which are climatic and topographical (Cleary & Genner, 2006), characteristic of vegetation cover and botanical diversity (Koh, 2007). Formerly measuring of the butterfly assemblage structure has been implemented using parameters of abundance and diversity counted to the ecosystem in whole. Much less attention has been paid to study the structure details in representatives of these insects within the concrete ecosystem. Most studies have focused on anthropogenic effects on animals including insects and particular butterflies (Hayes et al., 2008). Another lack of previous works concerning spatial and temporal structures .