干旱区生态环境知识资源中心(Arid): Integrated ecosystems: linking food webs through reciprocal resource reliance

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DOI	10.1002/ecy.3450
	Integrated ecosystems: linking food webs through reciprocal resource reliance
	Baruch, Ethan M.; Bateman, Heather L.; Lytle, David A.; Merritt, David M.; Sabo, John L.
通讯作者	Baruch, EM (corresponding author), Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA.
来源期刊	ECOLOGY
ISSN	0012-9658
EISSN	1939-9170
出版年	2021
卷号	102 期号:9
英文摘要	Ecosystems are defined, studied, and managed according to boundaries constructed to conceptualize patterns of interest at a certain scale and scope. The distinction between ecosystems becomes obscured when resources from multiple origins cross porous boundaries and are assimilated into food webs through repeated trophic transfers. Ecosystem compartments can define bounded localities in a heterogeneous landscape that simultaneously retain and exchange energy in the form of organic matter. Here we developed and tested a framework to quantify reciprocal reliance on cross-boundary resource exchange and calculate the contribution of primary production from adjacent ecosystem compartments cycling through food webs to support consumers at different trophic levels. Under this framework, an integrated ecosystem can be measured and designated when the boundary between spatially distinct compartments is permeable and the bidirectional exchange of resources contributes significantly to sustaining both food webs. Using a desert river and riparian zone as a case study, we demonstrate that resources exchanged across the aquatic-riparian boundary cycle through multiple trophic levels. Furthermore, predators on both sides of the boundary were supported by externally produced resources to a similar extent, indicating this is a tightly integrated river-riparian ecosystem and that changes to either compartment will substantially impact the other. Using published data on lake ecosystems, we demonstrated that benthic and pelagic ecosystem compartments are likely not fully integrated, but differences between lakes could be used to test ecological hypotheses. Finally, we discuss how the integrated ecosystem framework could be applied in urban-preserve and field-forest ecosystems to address a broad range of ecological concepts. Because few systems function in complete isolation, this novel approach has application to research and management strategies globally as ecosystems continue to face novel pressures that precipitate cascading ecological repercussions well beyond a bounded system of focus.
英文关键词	aquatic invertebrates fish lizards resource subsidy riparian spatial subsidy trophic structure Wild and Scenic Rivers
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000683277500001
WOS关键词	FRESH-WATER ; TERRESTRIAL ECOSYSTEMS ; EDGE STRUCTURE ; SUBSIDIES ; STREAM ; FLOW ; DYNAMICS ; MODELS
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	Arizona State University ; E18
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363020
作者单位	[Baruch, Ethan M.; Sabo, John L.] Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA; [Bateman, Heather L.] Arizona State Univ, Coll Integrat Sci & Arts, Mesa, AZ 85212 USA; [Lytle, David A.] Oregon State Univ, Dept Integrat Biol, Corvallis, OR 97331 USA; [Merritt, David M.] US Forest Serv, Natl Stream & Aquat Ecol Ctr, Ft Collins, CO 80526 USA
推荐引用方式 GB/T 7714	Baruch, Ethan M.,Bateman, Heather L.,Lytle, David A.,et al. Integrated ecosystems: linking food webs through reciprocal resource reliance[J]. Arizona State University, E18,2021,102(9).
APA	Baruch, Ethan M.,Bateman, Heather L.,Lytle, David A.,Merritt, David M.,&Sabo, John L..(2021).Integrated ecosystems: linking food webs through reciprocal resource reliance.ECOLOGY,102(9).
MLA	Baruch, Ethan M.,et al."Integrated ecosystems: linking food webs through reciprocal resource reliance".ECOLOGY 102.9(2021).