iScience (Sep 2021)

Decline of three farmland pest species in rapidly urbanizing landscapes

  • Nian-Feng Wan,
  • Matteo Dainese,
  • Feng Zhu,
  • Liu-Bin Xiao,
  • Wei Zhang,
  • Jun Ma,
  • Wei-Min Wang,
  • Mao-Tao Wang,
  • Jian-Wen Zhu,
  • Jin-Yan Wang,
  • Wei Cheng,
  • Chen Zhou,
  • Shi-Jian Chen,
  • Qin Wei,
  • Yao-Pei Jiang,
  • Xiang-Wen Wu,
  • Hong-Juan Yi,
  • Hui-Hua Gan,
  • Hui-Mei Shen,
  • Xiang-Yun Ji,
  • Yi Lu,
  • Zi-Ji Zhou,
  • Jian-Jun Zhang,
  • Wei-Yu Chen,
  • Shi-Yun Qiu,
  • You-Ming Cai,
  • Jie-Xian Jiang,
  • Bo Li

Journal volume & issue
Vol. 24, no. 9
p. 103002

Abstract

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Summary: Urbanization is a pressing challenge for earth’s humans because it is changing not only natural environments but also agricultural lands. Yet, the consequences of cropland loss on pest insect populations that largely depend on these habitats remain largely unclear. We used a 17-year data set to investigate the dynamics of three moth pest species (i.e., striped stem borer, yellow stem borer, and pink stem borer) and their driving forces across the largest mega-urban region of China. Total abundance of three pest species is declined by about 80%, which was strongly associated with cropland loss during rapid urbanization. Our findings indicate that not only the increasing conversion of natural areas to human-dominated landscapes but also that of agricultural lands to urban landscapes can be critical to insect populations. It is therefore essential to monitor and understand the insect dynamics in rapidly urbanizing regions, which are currently found in many developing countries worldwide.

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