气候变化领域集成服务门户(CCPortal): Ecological fidelity and spatiotemporal resolution of arthropod death assemblages from rodent middens in the central Atacama Desert (northern Chile)

CCPortal

DOI	10.1016/j.quascirev.2019.02.029
	Ecological fidelity and spatiotemporal resolution of arthropod death assemblages from rodent middens in the central Atacama Desert (northern Chile)
	Dézerald O.; Latorre C.; Betancourt J.L.; Brito Vera G.A.; González A.L.
发表日期	2019
ISSN	0277-3791
起始页码	15
结束页码	25
卷号	210
英文摘要	Evaluating the magnitude and direction of biases affecting the ecological information captured by death assemblages is an important prerequisite for understanding past, present, and future community-environment relationships. Here, we establish the ecological fidelity and spatiotemporal resolution of an overlooked source of fossil remains: the soil arthropod assemblages found in rodent middens (that span from the present to >44,420 cal yr BP) collected in the central Atacama Desert of northern Chile. We evaluated the “live-dead agreement” across four sources of soil arthropod data; two contemporary surveys of live communities (i.e., live), and two sources of death assemblages (i.e., dead). Although live-dead agreements and diversity indices are highly variable among samples (live and dead assemblages), our results consistently demonstrate that an average fossil midden (i) better captures the structure and composition of living communities than species richness per se; (ii) offers a spatially-resolved picture of those communities at local scales; and (iii) is only weakly affected by time-averaging. The fine spatiotemporal resolution of fossil midden records in the Atacama, and most likely other areas of the world where rodent middens occur offers ecological information on the structure and composition of fossil arthropod assemblages potentially over many thousands of years. This information is reliable enough to establish historical baselines before past and ongoing anthropogenic impacts. © 2019 Elsevier Ltd
英文关键词	Arthropods; Death assemblages; Historical baseline; Holocene; Taphonomy; Time averaging
语种	英语
scopus关键词	Stream flow; Arthropods; Death assemblages; Historical baseline; Holocenes; Taphonomy; Time averaging; Ecology; baseline conditions; fossil assemblage; historical perspective; Holocene; rodent; soil biota; spatiotemporal analysis; species richness; taphonomy; Atacama Desert; Chile; Arthropoda; Rodentia
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151984
作者单位	Biology Department & Center for Computational and Integrative Biology, Rutgers University, Camden, NJ, United States; Laboratoire Interdisciplinaire des Environments Continentaux (LIEC)-CNRS UMR 7360, Université de Lorraine, Campus Bridoux, Metz, 57070, France; Institute of Ecology and Biodiversity (IEB), Santiago, Chile; Departamento de Ecología & Centro UC del Desierto de Atacama, Pontificia Universidad Católica de Chile, Santiago, Chile; US Geological Survey, Reston, VA, United States; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States
推荐引用方式 GB/T 7714	Dézerald O.,Latorre C.,Betancourt J.L.,et al. Ecological fidelity and spatiotemporal resolution of arthropod death assemblages from rodent middens in the central Atacama Desert (northern Chile)[J],2019,210.
APA	Dézerald O.,Latorre C.,Betancourt J.L.,Brito Vera G.A.,&González A.L..(2019).Ecological fidelity and spatiotemporal resolution of arthropod death assemblages from rodent middens in the central Atacama Desert (northern Chile).Quaternary Science Reviews,210.
MLA	Dézerald O.,et al."Ecological fidelity and spatiotemporal resolution of arthropod death assemblages from rodent middens in the central Atacama Desert (northern Chile)".Quaternary Science Reviews 210(2019).