The Relationship Of Ecological Factors And The Difference Between Winter And Summer Of The Morphological Characters Of Fur Of Siberian Weasel In TongHe Forest Xiaoxing'anling Area

The fur of mammal is the intermedium to directly connect with environment .it is an intricate system which is high evolved and adaptable. It not only contains interior information of organism but also represent a mass of synthetic information about the interrelation between animal and exterior environment. Therefore, it is extraordinarily significative to take good advantage of characters of the fur of animal to recognize animal and realize the interrelation between animal and environment.The 32 sampled Siberia weasels(mustela sibirica manchurica Brass)are selected from TongHe forest, Xiaoxinganling area, winter weasels and summer weasels respectively 16. They are selected respectively from July to September and from November to December in 2005. Macroscopically morphological characters such as the color, area , length , density , and thickness of fur and microscopically morphological characters such as hair diameter , medulla diameter , absent medulla proportion of top and bottom of hair, the number of scale of unit length , and proportion of each scale type of hair are measured . The sampled furs and hairs are not only from the same body parts of different individuals, but also from different body parts of the same individual and in different growth season, winter and summer respectively. They are collected from the head, medium back, medium abdomen, hip, medium tail of male and female respectively, and are examined under microscope for their microstructure and systematically compared their difference and stability. Besides, we collect recent 11 years the 6 ecological factors data: temperature, moisture, rainfall, time of sunlight and wind speed in place of sample collected. SPSS statistic software is applied to analyze these collected data. Then, through carrying out correlation analysis and regressive analysis between data of characters of hairs and data of ecological factors of 2005-year, it can be concluded 6 tips from analysis hereinbefore:1. There are distinct differences between winter and summer in macroscopically morphological characters ,such as color, area, length , density , and thickness of fur , and microscopically morphological characters ,such as hair diameter , medulla diameter , absent medulla proportion, the number of scale of unit length, proportion of each scale type of hair .2. There are distinctly gender differences between male and female Siberia weasel, especially characters of fur.3. Straight guard hair is distinctly correlated with the density of fur . So, it is feasible to evaluate indirectly the density of fur by the straight guard hair.4. Proportion of each scale type of fuzz is more stable than that of guard hair, so it can be used to identify species as the credible gists.5. The characters of Siberia weasel's fur are affected by all ecological factors togetner, Itsmacroscopically and microscopically season changes are distinctly correlated with the seasonchange of ecological factors.6. Temperatures moisture > wind speech are three mainly ecological factors to effecttogether Siberia weasel's hair diameter -, medulla diameter s absent medulla proportionshair medulla index > the number of scale of unit lengths proportion of each scale type ofhair ect.