Small Birds Body Utilization Way And Efficiency Analysis In Maoer Mountain Of Heilongjiang

Through in the middle of July 2015,and the late of September 2015 in MaoEr mount,we through the newly hatched chickens body near the laoshan experimental station in coniferous forest, broad-leaved forest and needle broad-leaved mixed forests on the samples to determine the existence of small and medium-sized vertebrate body time, and determine the disintegrator groups in various forest types in the field.In the process of experiment, a total of 180 bodies samples has been through in summer and autumn, including 75 in the summer and 105 in autumn,in summer, a total of 27 carcasses were left after seven days, accounts for about 36% of the total number of carcasses; in autumn, a total of 55 carcasses were left after seven days, accounts for about 61.1% of the total number of carcasses. In different forest types, a total of 45 carcasses in summer and autumn in the Korean pine, dead after 7 days remaining 21, accounting for 46.7% of the total of carcasses; a total of 45 carcasses in summer and autumn in the birches, after 7 days 22 were left, accounting for 48.9% of the total of carcasses, a total of 30 carcasses in summer and autumn in the larch mixed forest, dead after 7 days remaining 7, accounting for 23.3% of the total of carcasses; a total of 30 carcasses in summer and autumn in the fraxinus mandshurica, after 7 days 5 left, accounting for 16.7% of the total number of carcasses, the grass threw 30 carcasses in summer and autumn,after 7 days left 25, accounted for 83.3% of the total number of carcasses. By observed in the summer under the action of corruption of predatory insects exist generally in 0.4 days to 7 days or so, which rely on buried a time at least, for six hours, depending on the decomposition of the flies in 5 to 7 days or so, in the wild animal bodies under the action of time less than one day; The corruption of predatory insects in autumn is mainly flies, in the presence of their bodies under the action of time in 13 days or so, and under the action of vertebrates, the fastest also need more than 2 days.Record the experimental process of the communist party of China to participate in the decomposition of animal body a total of 5 classes 8 orders,16 families 26, which in addition to the field of 5 classes 7 orders,15 families 25 species are found in the summer, accounted for 96.2% of all animal groups, groups of animals that appear in the fall of the total of 6 families and 8 orders and 4 classes 9 species, accounted for 34.6% of all animal groups. In these groups of animals that lip foot class 1 species,1 (3.8%), more than enough class 1 species,1 (3.8%), 16 species of insects 4,9 families accounted for 61.5%, aves 3 families,2 orders 5 kinds of 19.2%,1 item 2 families,3 kinds of mammals, accounting for 11.5%. On this basis, this paper analyzed in different forest types, different season disintegrator groups as well as the disintegrator of the dominant position, and points out all kinds of disintegrator played a role in decomposing bodies.Body using results are divided into two parts:the visible and invisible. In invisible body utilization can be divided into two categories, one kind is buried by the buried armor, one kind is by mobile vertebrates, in this kind of body utilization, fraxinus mandshurica forest is the fastest, but the birch forest in vertebrates. Losses are the result the main reason is that due to different forest types caused by different habitat use of bodies of animals in the different taxa distribution; In the process of visible body use is mainly composed of flies, the use of summer and autumn period length difference is very big, this process is mainly composed of temperature control.