Biodiv Sci ›› 2018, Vol. 26 ›› Issue (7): 701-706.DOI: 10.17520/biods.2018144

• Original Papers • Previous Articles     Next Articles

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

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