Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems

With ongoing climate change at global scale we are currently losing biodiversity at an unprecedented rate. The insurance hypothesis and associated research, however, suggest that biodiversity has a major stabilising effect in ecosystems. In this situation, it is crucial to develop a better understan...

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Autores principales:	Arne Pommerening, Gongqiao Zhang, Xiaohong Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Insurance hypothesis Plant-plant interactions Point process statistics Mark mingling function Mark variogram Random-labelling test Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/e32f6e60d59241049bd1e288d1ad19c6
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id	oai:doaj.org-article:e32f6e60d59241049bd1e288d1ad19c6
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spelling	oai:doaj.org-article:e32f6e60d59241049bd1e288d1ad19c62021-12-01T04:32:07ZUnravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems1470-160X10.1016/j.ecolind.2020.106995https://doaj.org/article/e32f6e60d59241049bd1e288d1ad19c62021-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X20309341https://doaj.org/toc/1470-160XWith ongoing climate change at global scale we are currently losing biodiversity at an unprecedented rate. The insurance hypothesis and associated research, however, suggest that biodiversity has a major stabilising effect in ecosystems. In this situation, it is crucial to develop a better understanding of natural processes of maintaining biodiversity for employing them in conservation practice. In forest ecosystems, spatial species and size diversity are important aspects of α-diversity at woodland community and species population level. Both aspects of spatial diversity stem from complex relationships between tree interaction, disturbances and subsequent waves of colonisation by tree seedlings of various species. Using point process statistics, particularly the mark mingling function and the mark variogram, we studied the processes causing spatial correlations of species and size diversity. We found that spatial species dispersal and conspecific size distributions are key drivers of spatial species-size correlations and that a combination of simple random size-labelling techniques applied to mark variograms is instrumental in efficiently diagnosing them. If size ranges differ between species, spatial size diversity is largely a function of spatial species mingling. The existence of these correlations is crucial to conservation because they imply that conservation efforts can be rationalised: It is possible to focus on only one of the two tree diversity aspects. Interestingly, in multi-species forest ecosystems, although general species diversity is high, spatial species-size correlations can be diluted, because some of the many species populations may have similar size distributions.Arne PommereningGongqiao ZhangXiaohong ZhangElsevierarticleInsurance hypothesisPlant-plant interactionsPoint process statisticsMark mingling functionMark variogramRandom-labelling testEcologyQH540-549.5ENEcological Indicators, Vol 121, Iss , Pp 106995- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Insurance hypothesis Plant-plant interactions Point process statistics Mark mingling function Mark variogram Random-labelling test Ecology QH540-549.5
spellingShingle	Insurance hypothesis Plant-plant interactions Point process statistics Mark mingling function Mark variogram Random-labelling test Ecology QH540-549.5 Arne Pommerening Gongqiao Zhang Xiaohong Zhang Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems
description	With ongoing climate change at global scale we are currently losing biodiversity at an unprecedented rate. The insurance hypothesis and associated research, however, suggest that biodiversity has a major stabilising effect in ecosystems. In this situation, it is crucial to develop a better understanding of natural processes of maintaining biodiversity for employing them in conservation practice. In forest ecosystems, spatial species and size diversity are important aspects of α-diversity at woodland community and species population level. Both aspects of spatial diversity stem from complex relationships between tree interaction, disturbances and subsequent waves of colonisation by tree seedlings of various species. Using point process statistics, particularly the mark mingling function and the mark variogram, we studied the processes causing spatial correlations of species and size diversity. We found that spatial species dispersal and conspecific size distributions are key drivers of spatial species-size correlations and that a combination of simple random size-labelling techniques applied to mark variograms is instrumental in efficiently diagnosing them. If size ranges differ between species, spatial size diversity is largely a function of spatial species mingling. The existence of these correlations is crucial to conservation because they imply that conservation efforts can be rationalised: It is possible to focus on only one of the two tree diversity aspects. Interestingly, in multi-species forest ecosystems, although general species diversity is high, spatial species-size correlations can be diluted, because some of the many species populations may have similar size distributions.
format	article
author	Arne Pommerening Gongqiao Zhang Xiaohong Zhang
author_facet	Arne Pommerening Gongqiao Zhang Xiaohong Zhang
author_sort	Arne Pommerening
title	Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems
title_short	Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems
title_full	Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems
title_fullStr	Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems
title_full_unstemmed	Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems
title_sort	unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/e32f6e60d59241049bd1e288d1ad19c6
work_keys_str_mv	AT arnepommerening unravellingthemechanismsofspatialcorrelationbetweenspeciesandsizediversityinforestecosystems AT gongqiaozhang unravellingthemechanismsofspatialcorrelationbetweenspeciesandsizediversityinforestecosystems AT xiaohongzhang unravellingthemechanismsofspatialcorrelationbetweenspeciesandsizediversityinforestecosystems
_version_	1718405875275661312

Unravelling the mechanisms of spatial correlation between species and size diversity in forest ecosystems

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