干旱区生态环境知识资源中心(Arid): Burrowing detritivores regulate nutrient cycling in a desert ecosystem

Arid

DOI	10.1098/rspb.2019.1647
	Burrowing detritivores regulate nutrient cycling in a desert ecosystem
	Sagi, Nevo 1; Grunzweig, Jose M.2; Hawlena, Dror 1
通讯作者	Sagi, Nevo
来源期刊	PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
ISSN	0962-8452
EISSN	1471-2954
出版年	2019
卷号	286 期号:1914
英文摘要	Nutrient cycling in most terrestrial ecosystems is controlled by moisture-dependent decomposer activity. In arid ecosystems, plant litter cycling exceeds rates predicted based on precipitation amounts, suggesting that additional factors are involved. Attempts to reveal these factors have focused on abiotic degradation, soil-litter mixing and alternative moisture sources. Our aim was to explore an additional hypothesis that macro-detritivores control litter cycling in deserts. We quantified the role different organisms play in clearing plant detritus from the desert surface, using litter baskets with different mesh sizes that allow selective entry of micro-, meso- or macrofauna. We also measured soil nutrient concentrations in increasing distances from the burrows of a highly abundant macro-detritivore, the desert isopod Hemilepistus reaumuri. Macro-detritivores controlled the clearing of plant litter in our field site. The highest rates of litter removal were measured during the hot and dry summer when isopod activity peaks and microbial activity is minimal. We also found substantial enrichment of inorganic nitrogen and phosphorous near isopod burrows. We conclude that burrowing macro-detritivores are important regulators of litter cycling in this arid ecosystem, providing a plausible general mechanism that explains the unexpectedly high rates of plant litter cycling in deserts.
英文关键词	above-belowground interactions desert dryland decomposition conundrum litter decomposition macro-detritivores terrestrial isopod
类型	Article
语种	英语
国家	Israel
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000504858100008
WOS关键词	LITTER DECOMPOSITION ; SUBTERRANEAN TERMITES ; SOIL EXTRACTS ; LEAF-LITTER ; PATTERNS ; ISOPOD ; MACROARTHROPODS ; MICROARTHROPODS ; RELEASE ; CLIMATE
WOS类目	Biology ; Ecology ; Evolutionary Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology
EI主题词	2019-11-06
来源机构	Hebrew University of Jerusalem
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310768
作者单位	1.Hebrew Univ Jerusalem, Alexander Silberman Inst Life Sci, Dept Ecol Evolut & Behav, Risk Management Ecol Lab, IL-91905 Jerusalem, Israel; 2.Hebrew Univ Jerusalem, Robert H Smith Fac Agr Food & Environm, Robert H Smith Inst Plant Sci & Genet Agr, Rehovot, Israel
推荐引用方式 GB/T 7714	Sagi, Nevo,Grunzweig, Jose M.,Hawlena, Dror. Burrowing detritivores regulate nutrient cycling in a desert ecosystem[J]. Hebrew University of Jerusalem,2019,286(1914).
APA	Sagi, Nevo,Grunzweig, Jose M.,&Hawlena, Dror.(2019).Burrowing detritivores regulate nutrient cycling in a desert ecosystem.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,286(1914).
MLA	Sagi, Nevo,et al."Burrowing detritivores regulate nutrient cycling in a desert ecosystem".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 286.1914(2019).