Arid
DOI10.1016/j.jaridenv.2016.11.013
Emergence, survival, and growth of recruits in a desert ecosystem with vegetation-induced dunes (nebkhas): A spatiotemporal analysis
Quets, Jan J.1; El-Bana, Magdy I.2; Al-Rowaily, Saud L.3; Assaeed, Abdulaziz M.3; Temmerman, Stijn4; Nijs, Ivan1
通讯作者Quets, Jan J.
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
EISSN1095-922X
出版年2017
卷号139页码:1-10
英文摘要

We studied how emergence, survival, and growth of nebkha recruits are spatially affected by prevailing biotic and abiotic ecological drivers in a landscape with vegetation-induced dunes (nebkhas) in Saudi Arabia. Hereto Monte Carlo-based spatiotemporal analyses were performed on four remotely sensed study site maps, including adult nebkhas, recruits and elevation data, acquired over a three-year period. The emergence of new nebkha recruits was found substantially higher in topographic depressions and around adults, which we interpret as being a result of runoff water convergence to depressions and distance-limited seed dispersal from adults. The survival of recruits was also higher nearby nebkhas. However, the growth of already present recruits was suppressed near adult vegetation indicating competition, but unexpectedly increased far away from nebkhas which could be induced by augmented sand burial in these open areas, stimulating the nebkha development and its host plant. Combining the three demographic processes emergence, survival, and growth revealed systematically greater encroachment from nebkha recruits in zones with low vegetation cover, which creates a buffer against local disturbances in nebkha fields. (C) 2016 Elsevier Ltd. All rights reserved.


英文关键词Spatial pattern Null model Recruitment Saudi Arabia Rhazya stricta
类型Article
语种英语
国家Belgium ; Egypt ; Saudi Arabia
收录类别SCI-E
WOS记录号WOS:000393629500001
WOS关键词PHYTOGENIC MOUNDS NEBKHAS ; SPATIAL-PATTERNS ; SAUDI-ARABIA ; SOIL ; FACILITATION ; DISTURBANCE ; COMPETITION ; SHRUB ; SIZE
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构King Saud University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200090
作者单位1.Univ Antwerp, Ctr Excellence PLECO Plant & Vegetat Ecol, Dept Biol, Univ Pl 1, BE-2610 Antwerp, Belgium;
2.Port Said Univ, Fac Sci, Dept Bot, Port Said 42521, Egypt;
3.King Saud Univ, Coll Agr, Dept Plant Prod, POB 2460, Riyadh, Saudi Arabia;
4.Univ Antwerp, Dept Biol, Ecosyst Management Res Grp, Univ Pl 1, BE-2610 Antwerp, Belgium
推荐引用方式
GB/T 7714
Quets, Jan J.,El-Bana, Magdy I.,Al-Rowaily, Saud L.,et al. Emergence, survival, and growth of recruits in a desert ecosystem with vegetation-induced dunes (nebkhas): A spatiotemporal analysis[J]. King Saud University,2017,139:1-10.
APA Quets, Jan J.,El-Bana, Magdy I.,Al-Rowaily, Saud L.,Assaeed, Abdulaziz M.,Temmerman, Stijn,&Nijs, Ivan.(2017).Emergence, survival, and growth of recruits in a desert ecosystem with vegetation-induced dunes (nebkhas): A spatiotemporal analysis.JOURNAL OF ARID ENVIRONMENTS,139,1-10.
MLA Quets, Jan J.,et al."Emergence, survival, and growth of recruits in a desert ecosystem with vegetation-induced dunes (nebkhas): A spatiotemporal analysis".JOURNAL OF ARID ENVIRONMENTS 139(2017):1-10.
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