scholarly journals The subgingival microbiome in health and periodontitis and its relationship with community biomass and inflammation

2013 ◽  
Vol 7 (5) ◽  
pp. 1016-1025 ◽  
Author(s):  
Loreto Abusleme ◽  
Amanda K Dupuy ◽  
Nicolás Dutzan ◽  
Nora Silva ◽  
Joseph A Burleson ◽  
...  
Keyword(s):  
Community Biomass

Dominance determines fish community biomass in a temperate seagrass ecosystem

2019 ◽  
Author(s):  
Aaron Matthius Eger ◽  
Rebecca J. Best ◽  
Julia Kathleen Baum
Keyword(s):  
Species Richness ◽  
Ecosystem Function ◽  
Fish Community ◽  
Prey Capture ◽  
Fish Communities ◽  
Functional Trait ◽  
Ecosystem Functions ◽  
Community Biomass ◽  
Ecosystem Valuation ◽  
Species Abundances

Biodiversity and ecosystem function are often correlated, but there are multiple hypotheses about the mechanisms underlying this relationship. Ecosystem functions such as primary or secondary production may be maximized by species richness, evenness in species abundances, or the presence or dominance of species with certain traits. Here, we combined surveys of natural fish communities (conducted in July and August, 2016) with morphological trait data to examine relationships between diversity and ecosystem function (quantified as fish community biomass) across 14 subtidal eelgrass meadows in the Northeast Pacific (54° N 130° W). We employed both taxonomic and functional trait measures of diversity to investigate if ecosystem function is driven by species diversity (complementarity hypothesis) or by the presence or dominance of species with particular trait values (selection or dominance hypotheses). After controlling for environmental variation, we found that fish community biomass is maximized when taxonomic richness and functional evenness is low, and in communities dominated by species with particular trait values – those associated with benthic habitats and prey capture. While previous work on fish communities has found that species richness is positively correlated with ecosystem function, our results instead highlight the capacity for regionally prevalent and locally dominant species to drive ecosystem function in moderately diverse communities. We discuss these alternate links between community composition and ecosystem function and consider their divergent implications for ecosystem valuation and conservation prioritization.

Functional trait diversity across trophic levels determines herbivore impact on plant community biomass

2015 ◽  
Vol 18 (12) ◽  
pp. 1346-1355 ◽  
Author(s):  
Hélène Deraison ◽  
Isabelle Badenhausser ◽  
Nicolas Loeuille ◽  
Christoph Scherber ◽  
Nicolas Gross
Keyword(s):  
Plant Community ◽  
Functional Trait ◽  
Trophic Levels ◽  
Community Biomass ◽  
Trait Diversity ◽  
Herbivore Impact ◽  
Functional Trait Diversity

Comparing Neutral and Trade-off Community Models in Shaping the Community Biomass-Diversity Relationship Under Different Disturbance Levels

2013 ◽  
Vol 75 (2) ◽  
pp. 213-222
Author(s):  
Sa Xiao ◽  
Liang Zhao ◽  
Jia-Lin Zhang ◽  
Xiang-Tai Wang ◽  
Shu-Yan Chen
Keyword(s):  
Trade Off ◽  
Community Biomass

EFFECTS OF SPECIES DIVERSITY ON COMMUNITY BIOMASS PRODUCTION CHANGE OVER THE COURSE OF SUCCESSION

Ecology ◽  
2007 ◽  
Vol 88 (4) ◽  
pp. 929-939 ◽  
Author(s):  
Jerome J. Weis ◽  
Bradley J. Cardinale ◽  
Kenneth J. Forshay ◽  
Anthony R. Ives
Keyword(s):  
Species Diversity ◽  
Biomass Production ◽  
Community Biomass ◽  
Production Change

scholarly journals Does biodiversity increase spatial stability in plant community biomass?

2008 ◽  
Vol 11 (4) ◽  
pp. 338-347 ◽  
Author(s):  
Alexandra Weigelt ◽  
Jens Schumacher ◽  
Christiane Roscher ◽  
Bernhard Schmid
Keyword(s):  
Plant Community ◽  
Spatial Stability ◽  
Community Biomass

scholarly journals The Biodiversity–Biomass Relationship of Aquatic Macrophytes Is Regulated by Water Depth: A Case Study of a Shallow Mesotrophic Lake in China

2021 ◽  
Vol 9 ◽  
Author(s):  
Fei Ma ◽  
Lei Yang ◽  
Tian Lv ◽  
Zhenjun Zuo ◽  
Haocun Zhao ◽  
...  
Keyword(s):  
Water Depth ◽  
Aquatic Macrophyte ◽  
Interspecific Interactions ◽  
Species Identity ◽  
Community Biomass ◽  
Macrophyte Communities ◽  
Macrophyte Community ◽  
Evenness Indices ◽  
Aquatic Macrophyte Community ◽  
The Relationship

The relationship between biodiversity and productivity (or biomass production) (BPR) has been a popular topic in macroecology and debated for decades. However, this relationship is poorly understood in macrophyte communities, and the mechanism of the BPR pattern of the aquatic macrophyte community is not clear. We investigated 78 aquatic macrophyte communities in a shallow mesotrophic freshwater lake in the middle and lower reaches of the Yangtze River in China. We analyzed the relationship between biodiversity (species richness, diversity, and evenness indices) and community biomass, and the effects of water environments and interspecific interactions on biodiversity–biomass patterns. Unimodal patterns between community biomass and diversity indices instead of evenness indices are shown, and these indicate the importance of both the number and abundance of species when studying biodiversity–biomass patterns under mesotrophic conditions. These patterns were moderated by species identity biologically and water depth environmentally. However, water depth determined the distribution and growth of species with different life-forms as well as species identities through environmental filtering. These results demonstrate that water depth regulates the biodiversity–biomass pattern of the aquatic macrophyte community as a result of its effect on species identity and species distribution. Our study may provide useful information for conservation and restoration of macrophyte vegetation in shallow lakes through matching water depth and species or life-form combinations properly to reach high ecosystem functions and services.

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