干旱区生态环境知识资源中心(Arid): Grazing and aridity have contrasting effects on the functional and taxonomic diversity of ants

Arid

DOI	10.1016/j.baae.2020.07.003
	Grazing and aridity have contrasting effects on the functional and taxonomic diversity of ants
	Eldridge, David J.; Oliver, Ian; Val, James; Travers, Samantha K.; Delgado-Baquerizo, Manuel
通讯作者	Eldridge, DJ
来源期刊	BASIC AND APPLIED ECOLOGY
ISSN	1439-1791
EISSN	1618-0089
出版年	2020
卷号	48 页码:73-82
英文摘要	Ants are one of the most abundant and ubiquitous organisms on Earth and play critical roles in multiple ecosystem services such as seed dispersal and nutrient cycling. Despite this, the effects of climatic and land use stressors on particular species or groups of ants are poorly known. We conducted a regional field survey across 108 locations in south-eastern Australia, using correlation net-work analysis and structural equation modelling to identify how ants respond to environmental stressors. We found contrasting relationships amongst ants, and aridity, and vertebrate grazing intensity and history. Increasing aridity was associated with reduced ant richness, whereas increasing grazing intensity was associated with greater ant richness directly, and indirectly, via reductions in litter depth and perennial grass density. However, these taxonomically diverse groups of ant species still shared contrasting responses to increasing aridity and grazing intensity. We found strong associations between grazing, aridity and the abundance of Seed Harvesters, weak indirect relationships with Generalist Foragers, but no relationships for Predators or Sugar Feeders. Taken together, our work identifies contrasting relationships amongst grazing, aridity and ants (ant 'winners' or 'losers') across contrasting ecological contexts. Given that increasing aridity is generally associated with lower grazing intensity, our results suggest that locations with more arid sites will have lower ant richness with fewer Seed Harvesters, whereas more mesic sites with high grazing intensity might increase ant richness, and the abundance of specific ant species. Such knowledge is important if we are to maintain critical ant-mediated functions as Earth becomes drier and grazing intensity increases. Crown Copyright (C) 2020 Published by Elsevier GmbH on behalf of Gesellschaft fur okologie. All rights reserved.
英文关键词	Functional diversity Drylands Grazing Ants Richness
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000582737300007
WOS关键词	COMPLEXITY ; TRAITS ; APHAENOGASTER ; COMMUNITIES ; HYMENOPTERA ; GRASSLAND ; AUSTRALIA ; RESPONSES ; SIZE ; FOOD
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327154
作者单位	[Eldridge, David J.] Univ New South Wales, Sch Biol Earth & Environm Sci, Ctr Ecosyst Sci, Dept Planning Ind & Environm, Sydney, NSW 2052, Australia; [Oliver, Ian; Val, James] Dept Planning Ind & Environm, POB 1477, Gosford, NSW 2250, Australia; [Travers, Samantha K.] Univ New South Wales, Sch Biol Earth & Environm Sci, Ctr Ecosyst Sci, Sydney, NSW 2052, Australia; [Delgado-Baquerizo, Manuel] Univ Alicante, Dept Ecol, Carretera San Vicente Raspeig S-N, Alicante 03690, Spain; [Delgado-Baquerizo, Manuel] Univ Alicante, Inst Multidisciplinar Estudio Medio Ramon Margale, Carretera San Vicente Raspeig S-N, Alicante 03690, Spain
推荐引用方式 GB/T 7714	Eldridge, David J.,Oliver, Ian,Val, James,et al. Grazing and aridity have contrasting effects on the functional and taxonomic diversity of ants[J],2020,48:73-82.
APA	Eldridge, David J.,Oliver, Ian,Val, James,Travers, Samantha K.,&Delgado-Baquerizo, Manuel.(2020).Grazing and aridity have contrasting effects on the functional and taxonomic diversity of ants.BASIC AND APPLIED ECOLOGY,48,73-82.
MLA	Eldridge, David J.,et al."Grazing and aridity have contrasting effects on the functional and taxonomic diversity of ants".BASIC AND APPLIED ECOLOGY 48(2020):73-82.