生物多样性 ›› 2018, Vol. 26 ›› Issue (7): 701-706.DOI: 10.17520/biods.2018144

• 研究报告 • 上一篇    下一篇

内蒙古昆虫物种多样性分布格局及其机制

张宇, 冯刚*()   

  1. 蒙古高原生态学与资源利用教育部重点实验室, 省部共建草地生态学国家重点实验室培育基地, 内蒙古大学生态与环境学院, 呼和浩特 010021
  • 收稿日期:2018-05-15 接受日期:2018-07-20 出版日期:2018-07-20 发布日期:2018-09-11
  • 通讯作者: 冯刚
  • 作者简介:# 共同第一作者
  • 基金资助:
    内蒙古大学2015年引进高层次人才科研启动基金(21400-5165111)和2017年内蒙古自治区党委组织部“草原英才”(12000-12102228)

Distribution pattern and mechanism of insect species diversity in Inner Mongolia

Yu Zhang, Gang Feng*()   

  1. Ministry of Education Key Laboratory of Ecology and Resource Use of the Mongolian Plateau & Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot 010021
  • Received:2018-05-15 Accepted:2018-07-20 Online:2018-07-20 Published:2018-09-11
  • Contact: Feng Gang
  • About author:# Co-first authors

摘要:

物种多样性的地理分布格局及其机制是宏生态学和生物地理学的核心问题之一。区域尺度与局域尺度的影响因素, 如温度、降水、海拔变化、生境过滤、捕食、竞争与互惠等, 共同影响昆虫物种多样性的分布格局。然而, 迄今为止少有研究同时讨论不同尺度驱动因子对昆虫多样性地理分布格局的影响。本文基于内蒙古自治区86个旗县的昆虫多样性数据, 结合各地年平均气温、年降水量、古气候变化、海拔变化及植物多样性, 探讨昆虫物种多样性分布格局及其主要驱动因子。结果发现内蒙古昆虫多样性主要受到植物多样性与海拔变化的影响, 而气候因子对昆虫物种多样性的影响并不大。这一结果表明种间关系(食物多样性)与生境异质性可能对内蒙古昆虫多样性的分布格局起着主导作用。

关键词: 昆虫物种多样性, 生境异质性, 种间关系, 气候因子, 海拔变化, 植物多样性

Abstract:

How species are distributed geographically and what drives these distributions remain core issues in macroecology and biogeography. Both regional and local scale factors such as temperature, precipitation, altitudinal range, habitat filtering, predation, competition and reciprocity affect the large-scale distribution pattern of insect species diversity. However, few studies have simultaneously discussed the effects of these multi-scale drivers on the geographical distribution of insect diversity. Using insect diversity data from 86 counties in Inner Mongolia Autonomous Region, we assessed the distribution patterns and main drivers of insect species diversity. We included mean annual temperature, mean annual precipitation, paleoclimate change, altitudinal range and plant diversity as predictors. Plant diversity and altitudinal range influenced insect diversity in Inner Mongolia while climatic factors had less influence. Our results show that interspecific relationships (food diversity) and habitat heterogeneity may play a crucial role in shaping distribution patterns of insect diversity in Inner Mongolia.

Key words: insect species diversity, habitat heterogeneity, interspecific interactions, climatic factor, altitudinal range, plant diversity