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Community maturity, species saturation and the variant diversity- productivity relationships in grasslands

Ecology Letters

By:
, , and
DOI: 10.1111/j.1461-0248.2006.00980.x

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Abstract

Detailed knowledge of the relationship between plant diversity and productivity is critical for advancing our understanding of ecosystem functioning and for achieving success in habitat restoration efforts. However, effects and interactions of diversity, succession and biotic invasions on productivity remain elusive. We studied newly established communities in relation to preexisting homogeneous vegetation invaded by exotic plants in the northern Great Plains, USA, at four study sites for 3 years. We observed variant diversity-productivity relationships for the seeded communities (generally positive monotonic at three sites and non-monotonic at the other site) but no relationships for the resident community or the seeded and resident communities combined at all sites and all years. Community richness was enhanced by seeding additional species but productivity was not. The optimal diversity (as indicated by maximum productivity) changed among sites and as the community developed. The findings shed new light on ecosystem functioning of biodiversity under different conditions and have important implications for restoration. ?? 2006 Blackwell Publishing Ltd/CNRS.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Community maturity, species saturation and the variant diversity- productivity relationships in grasslands
Series title:
Ecology Letters
DOI:
10.1111/j.1461-0248.2006.00980.x
Volume
9
Issue:
12
Year Published:
2006
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Ecology Letters
First page:
1284
Last page:
1292