李宗菊; 張微思; 張志國; 程霞; 曹杰
云南大學生命科學學院; 云南大學生命科學學院; 云南大學生命科學學院; 云南大學生命科學學院; 云南大學生命科學學院 昆明650091; 昆明650091; 昆明650091; 昆明650091; 昆明650091

【中文摘要】 采用方差/均值比率法測定了鵝膏屬種群的分布格局類型。結果表明,47個鵝膏屬種群,有1/4屬于集群分布類型,有3/4屬于隨機分布類型。隨機分布的種群其聚集強度指標擴散型指數、叢生指數、聚塊性指標和平均擁擠度多對1.0沒有顯著的偏離,負二項參數則較大;而聚集分布的種群其聚集強度指標則符合聚集特征。

【英文摘要】 The distribution patterns of Amanita population were analyzed by means of variance/mean ratio method.The results were as follows: of 47 Amanita species,11 species belonged to clumped distribution and 36 species belonged to random distribution. To randomly distributed population, there were not any signicanct deviations from 1.0 on index of dispersion, index of clumping, index of patching and index of mean crowding, but the value of nenative binomial parameter is high. To clumped populations, those index above are identical with the characters of clumped populations.

【中文關鍵詞】 鵝膏屬; 種群; 分布格局
【英文關鍵詞】 Amanita; Populations; Distribution patterns
【基金】國家自然科學基金項目(30360021);; 云南省自然科學基金項目(2002D0005M)

【文獻出處】 中國食用菌,Edible Fungi of China,編輯部郵箱,2007年03期 【DOI】CNKI:SUN:ZSYJ.0.2007-03-003