【摘 要】
:
Based on the survey and collection in two important water conservation areas of Qinling mountans during 2008-2013,this study uses line transect method to as
【机 构】
:
Shaanxi Institute of Botany,Xi'an,710061,China
【出 处】
:
The 6th International Symposium on Larger Asian River(第六届亚洲大
论文部分内容阅读
Based on the survey and collection in two important water conservation areas of Qinling mountans during 2008-2013,this study uses line transect method to assess the population of butterflies.,and A total of 14352 butterflies were recorded,including 302 species in 140 genera under 5 families were identified,among which,4 species were nationally conserved species.Nymphalidae wasis the dominant family,with the most species number (148),genera number (64) and individual number (5527);Papilionidae was the lowest number of observations within the sample,containing 24 species,64 genera and 1540 individuals.Through calculated and analyzed several indexes,such as the richness index,the diversity index,the evenness index,the dominance index and the similarity coefficient of the two river basins,the results showed that Nymphalidae was the highest value of the richness index (1.9908) and the diversity index(3.4582);Hesperiidae was the highest value of the evenness index (0.8220) and Pieridae was the highest value of the dominance index (0.8698).
其他文献
Background:Ipomoea trifida (H.B.K.) G.Don.is one closest wild relative of cultivated sweetpotato.It owns abiotic and biotic stress resistance and can be use
The rivers of India play an important role in tLi HEves of the Indian people.The river systems provide irrigation,potable water,cheap transportation,electri
识别脑卒中FAST口诀rn快速识别中老年人是否是缺血性脑卒中的方法很简单,目前国际上常用“FAST”口诀:rn除此之外,缺血性脑卒中还有如下征兆:rn1一半身体突然发麻、乏力.比如
生活中,常有这样的事:在气温很低的晴朗冬日,人们外出时并不觉得很冷;而有时气温并不低,只是因为有风,却有一种寒风刺骨的感觉.要弄清楚其间的奥妙,就需要明白“感觉温度”这
City waterlogging is inevitablebecause of poor drainage and Intense rainfall in China.As frequently urban waterlogging,there is a huge challenge on drainage
With rapid socio-economic growth in China,there has been increasing pressure on the protection of the habitats and biodiversity in light of the development
在寒冷的冬季,不妨来一碗热气腾腾的药膳汤,可以温暖五脏六腑,甚至可以让周身都暖和起来.今天就推荐四款药膳暖胃汤,大家学起来吧!rn党参黄芪炖鸡汤rn食材:母鸡1只,党参50克,
The Yuxi Loess Plateau area is located in the west of Henan province,the total area is 27200 km2,which constitutes of more than 50% mountainous area,and mor
目前我国在世界上努力推进一路一带,然而在电力行业还有一个很多人不知道的名词叫一级一道,级是北极、道是赤道。风力发电都在北极附近,那里是最有效的风力发电,北极风力发电
脑卒中的类型及危害rn脑卒中分为缺血性脑卒中(俗称“脑梗塞”)和出血性脑卒中(俗称“脑出血”)两类,其中脑梗塞占脑卒中总数的60%~70%,通常是在睡眠或早晨醒来时发生;脑出血多