Relationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.

<h4>Background</h4>Understanding the relationship between species traits and species abundance is an important goal in ecology and biodiversity science. Although theoretical studies predict that traits related to performance (e.g. reproductive allocation) are most directly linked to spec...

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Autores principales:	Kechang Niu, Bernhard Schmid, Philippe Choler, Guozhen Du
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/04685d1df33740abb066a852cb90bf37
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spelling	oai:doaj.org-article:04685d1df33740abb066a852cb90bf372021-11-18T07:21:36ZRelationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.1932-620310.1371/journal.pone.0035448https://doaj.org/article/04685d1df33740abb066a852cb90bf372012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22536385/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Understanding the relationship between species traits and species abundance is an important goal in ecology and biodiversity science. Although theoretical studies predict that traits related to performance (e.g. reproductive allocation) are most directly linked to species abundance within a community, empirical investigations have rarely been done. It also remains unclear how environmental factors such as grazing or fertilizer application affect the predicted relationship.<h4>Methodology</h4>We conducted a 3-year field experiment in a Tibetan alpine meadow to assess the relationship between plant reproductive allocation (RA) and species relative abundance (SRA) on control, grazed and fertilized plots. Overall, the studied plant community contained 32 common species.<h4>Principal findings</h4>At the treatment level, (i) RA was negatively correlated with SRA on control plots and during the first year on fertilized plots. (ii) No negative RA-SRA correlations were observed on grazed plots and during the second and third year on fertilized plots. (iii) Seed size was positively correlated with SRA on control plots. At the plot level, the correlation between SRA and RA were not affected by treatment, year or species composition.<h4>Conclusions/significance</h4>Our study shows that the performance-related trait RA can negatively affect SRA within communities, which is possibly due to the tradeoffs between clonal growth (for space occupancy) and sexual reproduction. We propose that if different species occupy different positions along these tradeoffs it will contribute to biodiversity maintenance in local communities or even at lager scale.Kechang NiuBernhard SchmidPhilippe CholerGuozhen DuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 4, p e35448 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kechang Niu Bernhard Schmid Philippe Choler Guozhen Du Relationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.
description	<h4>Background</h4>Understanding the relationship between species traits and species abundance is an important goal in ecology and biodiversity science. Although theoretical studies predict that traits related to performance (e.g. reproductive allocation) are most directly linked to species abundance within a community, empirical investigations have rarely been done. It also remains unclear how environmental factors such as grazing or fertilizer application affect the predicted relationship.<h4>Methodology</h4>We conducted a 3-year field experiment in a Tibetan alpine meadow to assess the relationship between plant reproductive allocation (RA) and species relative abundance (SRA) on control, grazed and fertilized plots. Overall, the studied plant community contained 32 common species.<h4>Principal findings</h4>At the treatment level, (i) RA was negatively correlated with SRA on control plots and during the first year on fertilized plots. (ii) No negative RA-SRA correlations were observed on grazed plots and during the second and third year on fertilized plots. (iii) Seed size was positively correlated with SRA on control plots. At the plot level, the correlation between SRA and RA were not affected by treatment, year or species composition.<h4>Conclusions/significance</h4>Our study shows that the performance-related trait RA can negatively affect SRA within communities, which is possibly due to the tradeoffs between clonal growth (for space occupancy) and sexual reproduction. We propose that if different species occupy different positions along these tradeoffs it will contribute to biodiversity maintenance in local communities or even at lager scale.
format	article
author	Kechang Niu Bernhard Schmid Philippe Choler Guozhen Du
author_facet	Kechang Niu Bernhard Schmid Philippe Choler Guozhen Du
author_sort	Kechang Niu
title	Relationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.
title_short	Relationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.
title_full	Relationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.
title_fullStr	Relationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.
title_full_unstemmed	Relationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.
title_sort	relationship between reproductive allocation and relative abundance among 32 species of a tibetan alpine meadow: effects of fertilization and grazing.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/04685d1df33740abb066a852cb90bf37
work_keys_str_mv	AT kechangniu relationshipbetweenreproductiveallocationandrelativeabundanceamong32speciesofatibetanalpinemeadoweffectsoffertilizationandgrazing AT bernhardschmid relationshipbetweenreproductiveallocationandrelativeabundanceamong32speciesofatibetanalpinemeadoweffectsoffertilizationandgrazing AT philippecholer relationshipbetweenreproductiveallocationandrelativeabundanceamong32speciesofatibetanalpinemeadoweffectsoffertilizationandgrazing AT guozhendu relationshipbetweenreproductiveallocationandrelativeabundanceamong32speciesofatibetanalpinemeadoweffectsoffertilizationandgrazing
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Relationship between reproductive allocation and relative abundance among 32 species of a Tibetan alpine meadow: effects of fertilization and grazing.

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