Journal
ECOLOGY LETTERS
Volume 15, Issue 12, Pages 1457-1464Publisher
WILEY
DOI: 10.1111/ele.12006
Keywords
Biodiversity; diversity-productivity; ecosystem function; insect community; long-term experiment; primary and secondary production; structural equation model
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Funding
- Division Of Environmental Biology
- Direct For Biological Sciences [1234162] Funding Source: National Science Foundation
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Understanding the linkages among species diversity, biomass production and stability underlies effective predictions for conservation, agriculture and fisheries. Although these relationships have been well studied for plants and, to a lesser extent, consumers, relationships among plant and consumer diversity, productivity, and temporal stability remain relatively unexplored. We used structural equation models to examine these relationships in a long-term experiment manipulating plant diversity and enumerating the arthropod community response. We found remarkably similar strength and direction of interrelationships among diversity, productivity and temporal stability of consumers and plants. Further, our results suggest that the frequently observed relationships between plant and consumer diversity occur primarily via changes in plant production leading to changed consumer production rather than via plant diversity directly controlling consumer diversity. Our results demonstrate that extinction or invasion of plant species can resonate via biomass and energy flux to control diversity, production and stability of both plant and consumer communities.
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