干旱区生态环境知识资源中心(Arid): Contrasting Global Patterns of Spatially Periodic Fairy Circles and Regular Insect Nests in Drylands

Arid

DOI	10.1029/2019JG005393
	Contrasting Global Patterns of Spatially Periodic Fairy Circles and Regular Insect Nests in Drylands
	Getzin, Stephan 1,2; Yizhaq, Hezi 3; Cramer, Michael D.4; Tschinkel, Walter R.5
通讯作者	Getzin, Stephan
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
ISSN	2169-8953
EISSN	2169-8961
出版年	2019
卷号	124 期号:11 页码:3327-3342
英文摘要	Numerical analysis of spatial pattern is widely used in ecology to describe the characteristics of floral and faunal distributions. These methods allow attribution of pattern to causal mechanisms by uncovering the specific signatures of patterns and causal agents. For example, grassland-gap patterns called fairy circles (FCs) in Namibia and Australia are characterized by highly regular and homogenous distributions across landscapes that show spatially periodic ordering. These FCs have been suggested to be caused by both social insects and competitive plant interactions. We compared eight Namibian and Australian FC patterns and also modeled FCs to 16 patterns of social insect nests in Africa, Australia, and America that include the most regular termite mound patterns known. For pattern-process inference, we used spatial statistics based on both nearest-neighbor analysis and neighborhood-density functions. None of the analyzed insect-nest distributions attain the spatially periodic ordering that is typical of FCs. The inherently more variable patterns of termite and ant nests are commonly attributable to well documented aspects of the faunal life-history. Our quantitative evidence from drylands shows that the more variable insect-nest distributions in water-limited environments cannot explain the characteristic spatial signature of FCs. The analysis demonstrates the interpretation of scale-dependent neighborhood-density functions and that it is the identification of unique spatial signatures in regular patterns that need to be linked to process. While our results cannot verify a specific hypothesis, they support the hypothesis that FCs in these drylands are more likely an emergent vegetation pattern caused by strong plant competition for water.
类型	Article
语种	英语
国家	Germany ; Israel ; South Africa ; USA
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000495173300001
WOS关键词	SELF-ORGANIZATION ; NAMIB DESERT ; MYSTERIOUS CIRCLES ; TERMITES ISOPTERA ; POINT PATTERNS ; HARVESTER ANT ; MOUNDS ; COLONIES ; ORIGIN ; RECRUITMENT
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
EI主题词	2019-11-08
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310788
作者单位	1.Univ Goettingen, Dept Ecosyst Modelling, Gottingen, Germany; 2.UFZ Helmholtz Ctr Environm Res, Dept Ecol Modelling, Leipzig, Germany; 3.Ben Gurion Univ Negev, Blaustein Inst Desert Res, Dept Solar Energy & Environm Phys, Beer Sheva, Israel; 4.Univ Cape Town, Dept Biol Sci, Cape Town, South Africa; 5.Florida State Univ, Dept Biol Sci, B-157, Tallahassee, FL 32306 USA
推荐引用方式 GB/T 7714	Getzin, Stephan,Yizhaq, Hezi,Cramer, Michael D.,et al. Contrasting Global Patterns of Spatially Periodic Fairy Circles and Regular Insect Nests in Drylands[J]. Ben-Gurion University of the Negev,2019,124(11):3327-3342.
APA	Getzin, Stephan,Yizhaq, Hezi,Cramer, Michael D.,&Tschinkel, Walter R..(2019).Contrasting Global Patterns of Spatially Periodic Fairy Circles and Regular Insect Nests in Drylands.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,124(11),3327-3342.
MLA	Getzin, Stephan,et al."Contrasting Global Patterns of Spatially Periodic Fairy Circles and Regular Insect Nests in Drylands".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 124.11(2019):3327-3342.