大別山地區(qū)蟲(chóng)生真菌群落結(jié)構(gòu)與生態(tài)分布
THE COMMUNITY STRUCTURE AND ECOLOGICAL DISTRIBUTION OF ENTOMOGENOUS FUNGI IN DABIE MOUNTAINS
王四寶 劉競(jìng)男 黃勃 樊美珍 李增智
摘 要:本文對(duì)安徽大別山地區(qū)蟲(chóng)生真菌的群落結(jié)構(gòu)和生態(tài)分布規(guī)律進(jìn)行了研究.在天堂寨和鷂落坪2個(gè)自然保護(hù)區(qū)共設(shè)樣方278個(gè),先后采集罹病標(biāo)本1986個(gè),共計(jì)50種,隸屬于4目、4科、16屬.優(yōu)勢(shì)種依次為粉擬青霉、細(xì)腳擬青霉、下垂蟲(chóng)草、球孢白僵菌和金龜子綠僵菌.在垂直分布上,種的豐度、多度和物種多樣性指數(shù)都以海拔1100-1150m最高,隨著海拔升高或降低,各多樣性指標(biāo)基本上表現(xiàn)遞減的趨勢(shì).季節(jié)分布上,夏季是蟲(chóng)生真菌物種分布最豐富的季節(jié),隨著溫度下降和雨量的減少,種的豐度和多度也明顯下降.另外,該區(qū)蟲(chóng)生真菌群落呈現(xiàn)出明顯的水平地帶性分布規(guī)律.
關(guān)鍵詞:森林生態(tài)系,自然保護(hù)區(qū),豐度,多度,相對(duì)多度,物種多樣性
分類號(hào):Q939.96 文獻(xiàn)標(biāo)識(shí)碼:A
文章編號(hào):1672-6472(2004)02-0195-0203
基金項(xiàng)目:國(guó)家自然科學(xué)基金(NSFC)資助項(xiàng)目(NO 30170761)
作者簡(jiǎn)介:李增智,通訊作者
作者單位:王四寶(安徽農(nóng)業(yè)大學(xué)安徽省微生物防治重點(diǎn)實(shí)驗(yàn)室,合肥,230036)
劉競(jìng)男(安徽大學(xué)生命科學(xué)學(xué)院,合肥,230039)
黃勃(安徽農(nóng)業(yè)大學(xué)安徽省微生物防治重點(diǎn)實(shí)驗(yàn)室,合肥,230036)
樊美珍(安徽農(nóng)業(yè)大學(xué)安徽省微生物防治重點(diǎn)實(shí)驗(yàn)室,合肥,230036)
李增智(安徽農(nóng)業(yè)大學(xué)安徽省微生物防治重點(diǎn)實(shí)驗(yàn)室,合肥,230036)
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