A Study On Spatial Distribution Patterns Of Mosquitoes Diversity In The Lake Wetlands Of Yunnan Plateau

Abstract Objective To investigare and study Mosquitoes composition,diversity and spatiel(?) plateau lakes and wetlands；to explore the main (?) distribution and its correlation Method (?) of space in Yunnan Province.Mosquitoes ((?) light trap method is found in the prvince (?) 1000-3500 m above sea level)of the 21 major (?) survey sampling mosquitoes overnight (?) rainy season,temperature and mosquito density.(?) of the data were analyzed synthetically with (?) diversity,characteristics and relation of the (?) Plateau lakes wetland with environmental factors (?) mosquitoes were collected in Yunnan,36 species (?) and 2 Families.Among them,the (?) 6 species,,Armigeres,Mansonia,Culiseta is one (?) is dominant species (86.25 percent of total that:(1)The richness of mosquitoes in (?) gradient showed that there were two peak (?) 24°N-25°N and 26°N-27°N latituades:A broad(?) to elevation was observed.The peak (?) zone and then decreased by degrees with (?) (Shannon-Wiener index and Pielou index) (?) latitude and altitude,Its distribution tendency and (?) inverse correlation (3) Genus and speciesβ(?)gradually with the increasing latitude；the (?) the mid-latitude zone；A broad peak distribution pattern according to elevation was observed. The peak occurred at about 2,000-2,500m at mid-altitude zone and then decreased by degrees with the increasing altitude between the peak (latitude 26°N-27°N and between 2000-2500m above sea level) range, plateau lakes in Yunnan wetlands Mosquitoes fauna along the latitude and altitude produce significant changes and differentiation of the two major regional flora. (4) The Cluster analysis showed:This grouping results correspond to the three main regional In different latitude, elevation gradient with the distribution of mosquitoes those are Oriental fauna, the transitional association or intersection association between Oriental fauna and Palaearctic fauna, Palaearctic fauna (5) By 21 lakes, wetlands, mosquito cluster analysis shows Yunnan lake wetland composition of mosquitoes can be divided into five basic categories. This reflect the composition of wetland and distribution of mosquitoes and their geographical location and altitude lakes have a degree. (6) 21 Plateau wetland mosquito species multiplicity (species abundance, multiple indices, uniformity index, dominance index) the relationship with the important geogen and the main mosquito analysis result showed:a) It was not obviously related that Species richness and altitude, temperature and precipitation, mainly aedes mosquitoes of degrees b) It was significantly obviously related that The multiple indices and latitude, the temperature and species abundance of Culex tritaeniorhynchus but it was not related with the precipitation c) It was not obviously related that uniformity index The multiple indices and latitude, the temperature and species abundance of Culex tritaeniorhynchus but it was not related with the precipitation d) It was negative correlation dominance index and the elevation assume,with significantly correlation species abundance of Culex tritaeniorhynchus,but it was not related with the precipitation and Temperature Conclusion It is the first time for investigation and research plateau lakes wetland mosquito diversity of large scale space distribution pattern and flora in Yunnan There is basic laws and characteristics in highland lakes and wetlands in the region of mosquito fauna and diversity along latitude and altitude, It is confirmed that the wetland mosquito diversity and its spatial pattern and altitude and temperature, the mosquito density. Dominant species abundance of Culex tritaeniorhynchus was significantly correlated, but has nothing to do with rainfall.