四川南充市郊区鼠型小兽群落组成研究  

Composition of Small Mammal Communities in Suburb of Nanchong

作　　者：申跃武[1] 梁素华[2] 刘云[2] 胡锦矗[1] 

机构地区：[1]西华师范大学珍稀动植物研究所,四川南充637007 [2]川北医学院医学生物学教研室

出　　处：《四川动物》2007年第3期651-654,共4页Sichuan Journal of Zoology

基　　金：四川省重点学科重点资助项目(SZD0402)

摘　　要：2005年3月～2006年2月对四川省南充市郊区的鼠型小兽进行了调查。共捕获鼠型小兽1499只,隶属于2目2科7种,根据优势种分为两个群落:微尾鼩+黑线姬鼠群落中除优势种外,还捕到少量大足鼠、社鼠、褐家鼠和灰麝鼩,主要分布于住宅区以外的农田林地;褐家鼠+黄胸鼠群落,有少量微尾鼩,分布于住宅区。采用Shannon-Weiner多样性指数、均匀性指数、Hurlbert生态优势度和物种数对沟谷地、半坡地、坡顶地以及住宅区4种微生境中捕获的小兽进行了分析。住宅区的多样性指数、均匀性指数最高,其次为沟谷地。A total of 1499 small mammals belonging to 7 species, 2 families and 2 orders were captured （8567 trap nights at 15 trap sites from March 2005 to February 2006） at an agricultural landscape in the suburb of Nanehong City, Siehuan Province. In field and woodland：Mole shrew （Anourosorex squamipes） and Striped field mouse （Apodemus agrarius） are the dominant species. A few of Himalayan field rat （Rattus nitidus ） , Norway rat（ Rattus norvegicus） , Chinese white-bellied rat （Niviventer confucianu~） and Indoehinese shrew （Crocidura attenuata）were captured. In uptown：Norway rat and tanezumi rat （Rattus tanezumi ） are the dominant species. The capture rate of small mammal is 18.84% in field and woodland and 8.42 % in uptown. More species of small mammals were trapped in valley field （5 species） than in others. But species diversity and evenness indices （Shannon＇s and Pielou＇s Index） are bigger in uptown than in other 3 kinds of analyzed environments. By comparing with the neighboring regions and local historical records, considering the effects of human activities, Mole shrew has competitive advantage in the field and woodland and rodents has competitive advantage in uptown.

关 键 词：鼠型小兽 群落组成 南充市郊区 

分 类 号：Q958[生物学—动物学]