Converting natural vegetation to farmland alters functional structure of ground-dwelling beetles and spiders in a desert oasis

	Converting natural vegetation to farmland alters functional structure of ground-dwelling beetles and spiders in a desert oasis
	Li, Feng-Rui 1,2; Liu, Ji-Liang 1,3; Sun, Te-Sheng 2; Jin, Bo-Wen 1,3; Chen, Li-Juan 3
刊名	JOURNAL OF INSECT CONSERVATION
	2014-02-01
卷号	18 期号:1 页码:57-67
关键词	Agricultural Expansion Biological Pest Control Detritivorous Arthropods Ecosystem Services Land-use Change Predatory Arthropods
文献子类	Article
英文摘要	A vast area of native shrub-dominated steppe at the margins of desert oases in arid regions of China had been reclaimed as farmland in the last century for grain production to feed growing human populations. This study evaluated the consequences of this land-use change on the activity density, taxa richness and composition of functional groups (herbivores, predators and detritivores) of ground-dwelling beetles and spiders, which include some important ecological groups of natural enemies of insect pests (e.g. predatory spiders and beetles), pollinators and decomposers (e.g. detritivorous beetles). Ground-dwelling beetles and spiders were collected using pitfall traps in native steppe habitats and adjacent irrigated farmland of different ages (cultivated either for 27 or at least for 90 years). It was found the conversion of native steppe to farmland, regardless of farmland age, led to a significant increase in activity density of predators, with a greater increase in 90-year-old farmland than in 27-year-old farmland, but did not affect their taxa richness. However, native steppe conversion to farmland, regardless of farmland age, led to significant declines in activity density and taxa richness of both detritivores and herbivores, with a much greater decrease of activity or richness in detritivores than in herbivores in both farmland types. We also observed taxa-specific responses to the land conversion within functional groups. The functional composition of the beetle and spider community shifted from a community dominated by detritivores in the native steppe sites to one dominated by predators in the irrigated farmland sites. Our results suggest that the different functional groups of ground-dwelling beetles and spiders responded in a different way to the land conversion. The remarkable increase in predators and the dramatic decline in detritivores by converting natural vegetation to agricultural land are expected to strongly affect the desert ecosystem services such as biological pest control, pollination and decomposition.
WOS关键词	LAND-USE CHANGE ; HABITAT MANAGEMENT ; CABBAGE FIELDS ; PLANT TRAITS ; PEST-CONTROL ; GOBI DESERT ; ECOSYSTEM ; BIODIVERSITY ; DIVERSITY ; COMMUNITIES
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000332459000005
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/68427]
专题	中国科学院地理科学与资源研究所
通讯作者	Li, Feng-Rui
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Inst, Chinese Ecosyst Res Network, Linze Inland River Basin Res Stn, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Gansu Key Lab Stress Physiol & Ecol, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lab Water & Soil Resources, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li, Feng-Rui,Liu, Ji-Liang,Sun, Te-Sheng,et al. Converting natural vegetation to farmland alters functional structure of ground-dwelling beetles and spiders in a desert oasis[J]. JOURNAL OF INSECT CONSERVATION,2014,18(1):57-67.
APA	Li, Feng-Rui,Liu, Ji-Liang,Sun, Te-Sheng,Jin, Bo-Wen,&Chen, Li-Juan.(2014).Converting natural vegetation to farmland alters functional structure of ground-dwelling beetles and spiders in a desert oasis.JOURNAL OF INSECT CONSERVATION,18(1),57-67.
MLA	Li, Feng-Rui,et al."Converting natural vegetation to farmland alters functional structure of ground-dwelling beetles and spiders in a desert oasis".JOURNAL OF INSECT CONSERVATION 18.1(2014):57-67.