气候变化领域集成服务门户(CCPortal): Rare spatio-temporal interactions between conspecific species mingling and size inequality in a diverse Afromontane forest

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DOI	10.1016/j.foreco.2024.121787
	Rare spatio-temporal interactions between conspecific species mingling and size inequality in a diverse Afromontane forest
	Pommerening, Arne; Durrheim, Graham; Behrend, Anna Mariager
发表日期	2024
ISSN	0378-1127
EISSN	1872-7042
起始页码	558
卷号	558
英文摘要	Spatial indices of tree diversity have often been proposed as surrogates of direct measures of biodiversity. They are comparatively straightforward to measure as part of forest ecosystem monitoring designed to alert to potentially negative effects of ongoing climate change. The loss of biodiversity, which is thought to be related to a decline in tree diversity, is perceived as a substantial threat, since biodiversity is also crucial to ecosystem resilience. We studied the correlation between community species mingling and size inequality of Knysna Forest, a well-known Afromontane forest ecosystem in South Africa, to better understand the principles of how nature maintains tree diversity. This is an important prerequisite for active conservation. The aforementioned correlation is indicative of the mingling-size hypothesis predicting that large trees are surrounded by significantly more heterospecific trees than smaller trees. The mingling-size hypothesis helps understand natural principles of tree diversity maintenance and is motivated by the well-known Janzen-Connell and herd-immunity hypotheses. Our results revealed that the correlation between spatial species mingling and size inequality is mostly negative at Knysna Forest, which is comparatively rare. This implies that the mingling-size hypothesis does not hold in this forest ecosystem. This has implications for conservation, because spatial size-inequality is no longer a by-product of high species mingling and potentially requires additional conservation effort. We could also show that the aforementioned negative correlation can be inferred from the mark cross correlation function when applying this spatial summary characteristic to the mingling and size inequality indices of individual trees.
英文关键词	Knysna Forest; Tree diversity; Mingling-size hypothesis; Janzen-Connell effects; Herd-immunity hypothesis; Mark cross correlation function; Voronoi/Dirichlet nearest neighbours
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:001208187100001
来源期刊	FOREST ECOLOGY AND MANAGEMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289099
作者单位	Swedish University of Agricultural Sciences
推荐引用方式 GB/T 7714	Pommerening, Arne,Durrheim, Graham,Behrend, Anna Mariager. Rare spatio-temporal interactions between conspecific species mingling and size inequality in a diverse Afromontane forest[J],2024,558.
APA	Pommerening, Arne,Durrheim, Graham,&Behrend, Anna Mariager.(2024).Rare spatio-temporal interactions between conspecific species mingling and size inequality in a diverse Afromontane forest.FOREST ECOLOGY AND MANAGEMENT,558.
MLA	Pommerening, Arne,et al."Rare spatio-temporal interactions between conspecific species mingling and size inequality in a diverse Afromontane forest".FOREST ECOLOGY AND MANAGEMENT 558(2024).