The dynamics of soil animals was studied in seven representative forest communities in the north of the Da Hinggan Mountains, Northeast China. The results indicate that it was distinctive in the changes of the numbers...The dynamics of soil animals was studied in seven representative forest communities in the north of the Da Hinggan Mountains, Northeast China. The results indicate that it was distinctive in the changes of the numbers of soil animals and groups and diversity in relationship with seasons for macrofauna and meso-micro fauna in the study area. The numbers of the observed soil animals in different months were: October>August>June. Group number was larger in August and October, but smaller in June. The change of diversity index in different months was: August>June>Oc- tober. The biomass for macrofauna in different months was: October>June>August. The composition and number of each functional group was relatively stable. In the community of the predominant soil environment, the percentage of saprophagous animals was higher than carnivorous animals and herbivorous animals. The dynamics changes of sapro- phagous and carnivorous animals were distinctive, increasing from June to October, while the change of herbivorous animals was unremarkable.展开更多
Cold-temperate region of China is an independent and the most northern one of the 8 vegetaion regions of China. The specitic composition of the vegetation in this region, besides the polytopic species, East-Siberia fl...Cold-temperate region of China is an independent and the most northern one of the 8 vegetaion regions of China. The specitic composition of the vegetation in this region, besides the polytopic species, East-Siberia floral element is dominant (51.5%), but mixed with Mandshurica (38.7%) and Mongolia (2.3%) in horizntal vegetation zone. The floral elements vary greatly with altitude, in higher and the highest Parts, they are mixed with Kantcaja-Erhock and Arctic alpine floral eleinents. The vertical distribution include 3 zones: subalpine dwarf forest zone, mountainous coniferous wood land zone and mountainous coniferous forest zone, and the last one include 3 subzones.展开更多
This short report communicates the finding of a Deep-bodied pipefish, Leptonotus blainvilleanus, (Eydoux & Gervais, 1837) [Syngnathiformes, Syngnathidae] in shallow waters of the San Jorge Gulf, Patagonia Argentin...This short report communicates the finding of a Deep-bodied pipefish, Leptonotus blainvilleanus, (Eydoux & Gervais, 1837) [Syngnathiformes, Syngnathidae] in shallow waters of the San Jorge Gulf, Patagonia Argentina, in August 2010. It’s a new record for its known distribution range in the coast of South America. Photos and videos are available.展开更多
基金Under the auspices of National Natural Science Foundation of China (No. 40671004)Natural Science Foundation of Heilongjiang Province (No. G200812)Specialized Research Fund for the Doctoral Program of Higher Education (No. 200802310001)
文摘The dynamics of soil animals was studied in seven representative forest communities in the north of the Da Hinggan Mountains, Northeast China. The results indicate that it was distinctive in the changes of the numbers of soil animals and groups and diversity in relationship with seasons for macrofauna and meso-micro fauna in the study area. The numbers of the observed soil animals in different months were: October>August>June. Group number was larger in August and October, but smaller in June. The change of diversity index in different months was: August>June>Oc- tober. The biomass for macrofauna in different months was: October>June>August. The composition and number of each functional group was relatively stable. In the community of the predominant soil environment, the percentage of saprophagous animals was higher than carnivorous animals and herbivorous animals. The dynamics changes of sapro- phagous and carnivorous animals were distinctive, increasing from June to October, while the change of herbivorous animals was unremarkable.
文摘Cold-temperate region of China is an independent and the most northern one of the 8 vegetaion regions of China. The specitic composition of the vegetation in this region, besides the polytopic species, East-Siberia floral element is dominant (51.5%), but mixed with Mandshurica (38.7%) and Mongolia (2.3%) in horizntal vegetation zone. The floral elements vary greatly with altitude, in higher and the highest Parts, they are mixed with Kantcaja-Erhock and Arctic alpine floral eleinents. The vertical distribution include 3 zones: subalpine dwarf forest zone, mountainous coniferous wood land zone and mountainous coniferous forest zone, and the last one include 3 subzones.
文摘This short report communicates the finding of a Deep-bodied pipefish, Leptonotus blainvilleanus, (Eydoux & Gervais, 1837) [Syngnathiformes, Syngnathidae] in shallow waters of the San Jorge Gulf, Patagonia Argentina, in August 2010. It’s a new record for its known distribution range in the coast of South America. Photos and videos are available.
