Heilongjing (China) and Alberta (Canada) provinces are situated at the same latitude, with similar nature conditions. Mammals in Alberta account for 87 species and in Heilongjing, 97 spcsics, among which a number of o...Heilongjing (China) and Alberta (Canada) provinces are situated at the same latitude, with similar nature conditions. Mammals in Alberta account for 87 species and in Heilongjing, 97 spcsics, among which a number of orders, families and species are in common. Continents of Eurisia and North America histoi cally were connected and separated for several times, so there are a number of animal forms in common, among them the similarity of herbivores is rather high. The similarity index of ccrvidae is 0.54. Other orders with comparatively similar compiosition arc Tnscvtivora, Chiroptera and Lagomorpha. In two orders, there arc no common species. In these two regions ,duc to historical reasons, a number of specific genera and species were formed.展开更多
文摘Heilongjing (China) and Alberta (Canada) provinces are situated at the same latitude, with similar nature conditions. Mammals in Alberta account for 87 species and in Heilongjing, 97 spcsics, among which a number of orders, families and species are in common. Continents of Eurisia and North America histoi cally were connected and separated for several times, so there are a number of animal forms in common, among them the similarity of herbivores is rather high. The similarity index of ccrvidae is 0.54. Other orders with comparatively similar compiosition arc Tnscvtivora, Chiroptera and Lagomorpha. In two orders, there arc no common species. In these two regions ,duc to historical reasons, a number of specific genera and species were formed.
