Gamma diversity and under-sampling together generate patterns in beta-diversity

Abstract Beta diversity represents how species in the regional pool segregate among local communities and hence forms a link between local and regional species diversities. Therefore, the magnitude of beta diversity and its variation across geographic gradients can provide insights into mechanisms o...

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Autores principales:	Aniruddha Marathe, Dharma Rajan Priyadarsanan, Jagdish Krishnaswamy, Kartik Shanker
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/dcd812b0c1d043578b44e8b8a24535cb
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spelling	oai:doaj.org-article:dcd812b0c1d043578b44e8b8a24535cb2021-11-08T10:50:07ZGamma diversity and under-sampling together generate patterns in beta-diversity10.1038/s41598-021-99830-82045-2322https://doaj.org/article/dcd812b0c1d043578b44e8b8a24535cb2021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99830-8https://doaj.org/toc/2045-2322Abstract Beta diversity represents how species in the regional pool segregate among local communities and hence forms a link between local and regional species diversities. Therefore, the magnitude of beta diversity and its variation across geographic gradients can provide insights into mechanisms of community assembly. Along with limits on local or regional level diversities, effects of local abundance that lead to under-sampling of the regional species pool are important determinants of estimated beta diversity. We explore the effects of regional species pools, abundance distributions, and local abundance to show that patterns in beta diversity as well as the mean of species abundance distribution have distinct outcomes, depending on limits on species pools and under-sampling. We highlight the effect of under-sampling in some established relationships between gamma diversity and beta diversity using graphical methods. We then use empirical data on ant communities across an elevational gradient in the Eastern Himalayas to demonstrate a shift from effect of reduction in species pool to under-sampling at mid-elevations. Our results show that multiple processes with contrasting effects simultaneously affect patterns in beta diversity across geographic gradients.Aniruddha MaratheDharma Rajan PriyadarsananJagdish KrishnaswamyKartik ShankerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Aniruddha Marathe Dharma Rajan Priyadarsanan Jagdish Krishnaswamy Kartik Shanker Gamma diversity and under-sampling together generate patterns in beta-diversity
description	Abstract Beta diversity represents how species in the regional pool segregate among local communities and hence forms a link between local and regional species diversities. Therefore, the magnitude of beta diversity and its variation across geographic gradients can provide insights into mechanisms of community assembly. Along with limits on local or regional level diversities, effects of local abundance that lead to under-sampling of the regional species pool are important determinants of estimated beta diversity. We explore the effects of regional species pools, abundance distributions, and local abundance to show that patterns in beta diversity as well as the mean of species abundance distribution have distinct outcomes, depending on limits on species pools and under-sampling. We highlight the effect of under-sampling in some established relationships between gamma diversity and beta diversity using graphical methods. We then use empirical data on ant communities across an elevational gradient in the Eastern Himalayas to demonstrate a shift from effect of reduction in species pool to under-sampling at mid-elevations. Our results show that multiple processes with contrasting effects simultaneously affect patterns in beta diversity across geographic gradients.
format	article
author	Aniruddha Marathe Dharma Rajan Priyadarsanan Jagdish Krishnaswamy Kartik Shanker
author_facet	Aniruddha Marathe Dharma Rajan Priyadarsanan Jagdish Krishnaswamy Kartik Shanker
author_sort	Aniruddha Marathe
title	Gamma diversity and under-sampling together generate patterns in beta-diversity
title_short	Gamma diversity and under-sampling together generate patterns in beta-diversity
title_full	Gamma diversity and under-sampling together generate patterns in beta-diversity
title_fullStr	Gamma diversity and under-sampling together generate patterns in beta-diversity
title_full_unstemmed	Gamma diversity and under-sampling together generate patterns in beta-diversity
title_sort	gamma diversity and under-sampling together generate patterns in beta-diversity
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/dcd812b0c1d043578b44e8b8a24535cb
work_keys_str_mv	AT aniruddhamarathe gammadiversityandundersamplingtogethergeneratepatternsinbetadiversity AT dharmarajanpriyadarsanan gammadiversityandundersamplingtogethergeneratepatternsinbetadiversity AT jagdishkrishnaswamy gammadiversityandundersamplingtogethergeneratepatternsinbetadiversity AT kartikshanker gammadiversityandundersamplingtogethergeneratepatternsinbetadiversity
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Gamma diversity and under-sampling together generate patterns in beta-diversity

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