干旱区生态环境知识资源中心(Arid): Seeing the locust in the swarm: accounting for spatiotemporal hierarchy improves ecological models of insect populations

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DOI	10.1111/ecog.05763
	Seeing the locust in the swarm: accounting for spatiotemporal hierarchy improves ecological models of insect populations
	Lawton, Douglas; Scarth, Peter; Deveson, Edward; Piou, Cyril; Spessa, Allan; Waters, Cathy; Cease, Arianne J.
通讯作者	Lawton, D (corresponding author)，Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA. ; Lawton, D (corresponding author)，North Carolina State Univ, Dept Entomol & Plant Pathol, Raleigh, NC 27695 USA.
来源期刊	ECOGRAPHY
ISSN	0906-7590
EISSN	1600-0587
出版年	2022
卷号	2022 期号:2
英文摘要	Ecological phenomena operate at different spatial scales and are not uniform across landscapes or through time. One ecological theory that attempts to account for scaling and spatiotemporal variances is hierarchical patch dynamics. It introduces a hierarchical patch network with smaller spatiotemporal scales being nested within larger scales. However, few studies have modeled its presence within animal population dynamics. Locusts are an excellent model for investigating the spatiotemporal hierarchy of animal population dynamics, due to their high migratory capacity, large geographic ranges that extend across widely differing environments, and available long-term data on distributions. Here, we investigated the influence of preceding vegetation growth on desert locust Schistocerca gregaria and Australian plague locust Chortoicetes terminifera outbreaks on three spatial levels (species range > geographic region > land unit) and between seasons. Both species are dryland herbivores with population dynamics linked to habitat productivity pulses after rain. We used NDVI data (MODIS imagery) as a measure of vegetation growth in hierarchical generalized additive models at different scales. Locust outbreaks were either preceded by vegetation growth between 78 and 32 days (Australian plague locusts) or 32 and 20 days before (desert locust) the observation. Although prior vegetation growth characterized outbreaks of both species, the temporal pattern of NDVI differed between spatiotemporal levels. All model selection criteria selected for a similar spatial hierarchy for both species: geographic region > land unit which supports the hierarchical patch dynamics paradigm. Further, it illuminates important timing differences between geographic regions and land units for preceding vegetation growth and locust outbreaks which can help locust managers identify when and where outbreaks occur. By acknowledging the spatiotemporal patterning of locust abundance, we account for heterogeneity of population dynamics throughout species ranges. Our findings demonstrate the importance of incorporating spatiotemporal variation in population models of insects and other animals.
英文关键词	grasshoppers hierarchical generalized additive models hierarchical patch dynamics insect outbreaks remote sensing
类型	Article
语种	英语
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:000745002900001
WOS关键词	AUSTRALIAN PLAGUE LOCUST ; CHORTOICETES-TERMINIFERA WALKER ; PREDATOR-PREY INTERACTIONS ; DESERT LOCUST ; PATCH DYNAMICS ; SCALE ; SELECTION ; PATTERN ; SEABIRDS ; PREDICT
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376534
作者单位	[Lawton, Douglas; Waters, Cathy] Arizona State Univ, Sch Life Sci, Tempe, AZ 85281 USA; [Lawton, Douglas; Waters, Cathy] North Carolina State Univ, Dept Entomol & Plant Pathol, Raleigh, NC 27695 USA; [Scarth, Peter] Univ Queensland, Sch Environm & Earth Sci, Joint Remote Sensing Res Program, Brisbane, Qld, Australia; [Deveson, Edward; Spessa, Allan] Australian Plague Locust Commiss, Fyshwick, ACT, Australia; [Deveson, Edward; Spessa, Allan] Australian Natl Univ, Fenner Sch Environm & Soc, Canberra, ACT, Australia; [Piou, Cyril] Univ Montpellier, Inst Agro, CIRAD, UMR CBGP, Montpellier, France; [Piou, Cyril] NSW Dept Primary Ind, Dubbo, NSW, Australia; [Piou, Cyril] Arizona State Univ, Sch Life Sci, Tempe, AZ USA
推荐引用方式 GB/T 7714	Lawton, Douglas,Scarth, Peter,Deveson, Edward,et al. Seeing the locust in the swarm: accounting for spatiotemporal hierarchy improves ecological models of insect populations[J],2022,2022(2).
APA	Lawton, Douglas.,Scarth, Peter.,Deveson, Edward.,Piou, Cyril.,Spessa, Allan.,...&Cease, Arianne J..(2022).Seeing the locust in the swarm: accounting for spatiotemporal hierarchy improves ecological models of insect populations.ECOGRAPHY,2022(2).
MLA	Lawton, Douglas,et al."Seeing the locust in the swarm: accounting for spatiotemporal hierarchy improves ecological models of insect populations".ECOGRAPHY 2022.2(2022).