干旱区生态环境知识资源中心(Arid): Cascading effects of livestock grazing on insect functional groups associated to flowers in arid lands

Arid

DOI	10.1111/afe.12557
	Cascading effects of livestock grazing on insect functional groups associated to flowers in arid lands
	Tadey, Mariana
通讯作者	Tadey, M
来源期刊	AGRICULTURAL AND FOREST ENTOMOLOGY
ISSN	1461-9555
EISSN	1461-9563
出版年	2023
卷号	25 期号:3 页码:375-390
英文摘要	1. Disturbances affect plant diversity with consequences on other trophic levels, like the associated insect communities. Domestic livestock is a major disturbance affecting flowering plant abundance at the bottom of insect food webs with unpredicted consequences on ecosystem functioning.2. This work evaluated livestock effect on flower-associated insect functional groups (i.e., predators, herbivores and pollinators) hypothesizing that plant damage produced by grazing exerts bottom up effects on insect populations, affecting their interactions. On contrary, livestock might supply food resources for several dipteran pests (e.g., scavengers, parasites or bloodsucking) or benefit predator species by increasing habitat transparency with grazing.3. Seven independent rangelands within the same arid environment and increasing livestock density, were used to test these hypotheses using a regression approach.4. Insect, herbivore and pollinator diversity decreased with increasing livestock density, and increased with increasing vegetation. Bare soil affected solitary bees (but not all the pollinators) and habitat transparency benefited predators, as expected. Dipteran pests quadratically decreased with increasing livestock density, rejecting the hypothesis of food supply. Apparently, predators reduced the abundance of almost all insect groups. 5. Grazing reduce vegetation positively affecting predators, which negatively affect other insect groups (top-down), potentially altering species complex interactions and ecosystem functioning.
英文关键词	dipteran pests flower-associated insects herbivores insect richness and abundance livestock density pollinators predators
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000912540400001
WOS关键词	PLANT-POLLINATOR ; RESOURCE CONTROL ; EXOTIC GRAZERS ; DIVERSITY ; PRODUCTIVITY ; BIODIVERSITY ; COMMUNITIES ; RESPONSES ; WASPS ; POPULATIONS
WOS类目	Entomology
WOS研究方向	Entomology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394994
推荐引用方式 GB/T 7714	Tadey, Mariana. Cascading effects of livestock grazing on insect functional groups associated to flowers in arid lands[J],2023,25(3):375-390.
APA	Tadey, Mariana.(2023).Cascading effects of livestock grazing on insect functional groups associated to flowers in arid lands.AGRICULTURAL AND FOREST ENTOMOLOGY,25(3),375-390.
MLA	Tadey, Mariana."Cascading effects of livestock grazing on insect functional groups associated to flowers in arid lands".AGRICULTURAL AND FOREST ENTOMOLOGY 25.3(2023):375-390.

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