The Effect of Artificial Field Margins on Epigeic Arthropod Functional Groups within Adjacent Arable Land of Northeast China

Chuqiao Wang, Zhenxing Bian (), Shuai Wang, Xiaochen Liu and Yufei Zhang
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Chuqiao Wang: College of Land and Environment, Shenyang Agricultural University, Shenyang 110161, China
Zhenxing Bian: College of Land and Environment, Shenyang Agricultural University, Shenyang 110161, China
Shuai Wang: College of Land and Environment, Shenyang Agricultural University, Shenyang 110161, China
Xiaochen Liu: College of Land and Environment, Shenyang Agricultural University, Shenyang 110161, China
Yufei Zhang: College of Land and Environment, Shenyang Agricultural University, Shenyang 110161, China

Land, 2022, vol. 11, issue 11, 1-16

Abstract: Providing food security to meet the growing human demand while improving the biodiversity of arable land is a global challenge. Although semi-natural field margins are known to enhance biodiversity in arable land systems globally, the role that abundant artificial field margins play in maintaining epigeic arthropod diversity within arable land remains unclear. Here, we compared epigeic arthropods within adjacent arable land with an artificial field margin (paved and dirt roads) and a semi-natural field margin (ditch, woodland, or grassland), as well as vegetation community characteristics at a field scale for identifying the ecological effects of different field margin types. Our results indicated the following: (i) Compared with semi-natural field margins, there is less epigeic arthropod diversity and less stable ecological networks within adjacent arable land with artificial field margins, with more herbivores within adjacent arable land with artificial field margins and more natural enemies within adjacent arable land with semi-natural field margins. (ii) Arable land adjacent to a dirt road (DR) maintained more resilient ecological networks than that adjacent to a paved road (PR), and there are more flowering plants at DRs, which attracts natural enemies, whereas Orthoptera is more active at PRs with abundant weeds. (iii) The main factors affecting epigeic arthropod functional groups were the tree layer cover (TC), herb layer abundance (HA), and herb layer height (HH) of the artificial and semi-natural field margins. We concluded that increasing the number of flowering plants and removing noxious weeds can eliminate negative effects on epigeic arthropod functional groups within adjacent arable land with artificial field margins. Delineating a certain percentage of vegetation strips to be a buffer zone in artificial field margins or creating a suitable vegetation community in semi-natural field margins can maintain and protect natural enemies and strengthen the ecological network stability between functional groups.

Keywords: epigeic arthropod; ecological network; artificial field margin; semi-natural field margin; vegetation community; edge effect (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2022
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