Dominance determines fish community biomass in a temperate seagrass ecosystem

Eger, Aaron M.; Best, Rebecca J.; Baum, Julia K.

doi:10.1002/ece3.7854

Cited by 4 publications

(1 citation statement)

References 97 publications

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“…Standing biomass is one of the most used metrics of ecosystem function (Benkwitt et al, 2020 ; Eger et al, 2021 ). Macroinvertebrate biomass, one of the good indicators of ecosystem provision and nutrient cycling, and a critical determinant of the functioning of freshwater ecosystems, was measured (Covich et al, 2004 ).…”

Section: Methodsmentioning

confidence: 99%

Macroinvertebrate diversity and ecosystem functioning across the eutrophication gradients of the middle and lower reaches of Yangtze River lakes (China)

Cai

Dong

Kattel

et al. 2023

Ecology and Evolution

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Biodiversity, which strengthens ecosystem stability, ecosystem function, and ecosystem services, is threatened by anthropogenic perturbation and climate change worldwide. However, despite the study of the role of biodiversity in multiple facets of freshwater ecosystems, the linkages between macroinvertebrates diversity and ecosystem functioning have not yet been well‐assessed in eutrophication gradients of lowland river‐floodplain systems. In this study, we have examined the relationship between macroinvertebrates diversity (species diversity, functional diversity, phylogenetic diversity) and macroinvertebrates biomass across the three typically featured eutrophication gradients: “MACROPHYTE,” “TRANSITION,” and “PHYTOPLANKTON,” of floodplain lakes in the middle and lower reaches of the Yangtze River (China). Our results suggest that macroinvertebrates diversity in three different lacustrine conditions, biomass, and the relationship between diversity and biomass varied along eutrophication gradients. Functional richness and variance (divergence in taxon community) were the two important macroinvertebrate diversity indices, which accounted for the largest amount of variation in the biomass (63% in PHYTOPLANKTON lakes and 57% in MACROPHYTE lakes, respectively). We also found that the macrophyte coverage is more important than the relative abundance in maintaining the macroinvertebrates diversity and biomass in lowland Yangtze floodplain lake systems, while the relative abundance of macrophyte would change the BEF relationship. Our results demonstrate the functional performance of Yangtze River lakes, which would change with increased nutrient loading and decreased macrophyte coverage and would highlight the significance of the restoration of macrophytes to reduce nutrient loads.

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Section: Methodsmentioning

confidence: 99%

Macroinvertebrate diversity and ecosystem functioning across the eutrophication gradients of the middle and lower reaches of Yangtze River lakes (China)

Cai

Dong

Kattel

et al. 2023

Ecology and Evolution

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Computational estimation of sediment symbiotic bacterial structures of seagrasses overgrowing downstream of onshore aquaculture

Miyamoto

Kawachi

Kurotani

et al. 2023

Environmental Research

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Secondary production increases with species richness but decreases with species evenness of benthic invertebrates

Clare

Culhane

Robinson

2022

Oikos

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Biodiversity is known to regulate ecosystem functioning under controlled experimental conditions. However, the ‘real‐world' consequences of biodiversity change remain uncertain, as biodiversity–ecosystem function (BEF) relationships observed in nature may be influenced by other drivers. Attempts to disentangle BEF relationships from the effects of confounding factors have so far focused mainly on primary producers, leaving comparatively little known about the impact of changes in consumer diversity despite ecosystems experiencing species extirpations and introductions across trophic levels. Using data from 176 benthic invertebrate assemblages distributed throughout the North Sea, we studied how a fundamental ecological function – secondary production – varies in relation to two components of biodiversity – consumer species richness and evenness – while statistically controlling the effects of abiotic and biotic covariates. Production was enhanced as richness increased or evenness decreased. The relationship with evenness was attributable to its negative covariance with the abundance of small organisms; however, the relationship with richness could not be fully explained by other drivers. Our study reaffirms experimental findings about the functional importance of biodiversity and suggests that losing or gaining consumer species will affect secondary production over a broad range of species richness (20–118 species) in natural ecosystems.

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Dominance determines fish community biomass in a temperate seagrass ecosystem

Cited by 4 publications

References 97 publications

Macroinvertebrate diversity and ecosystem functioning across the eutrophication gradients of the middle and lower reaches of Yangtze River lakes (China)

Macroinvertebrate diversity and ecosystem functioning across the eutrophication gradients of the middle and lower reaches of Yangtze River lakes (China)

Computational estimation of sediment symbiotic bacterial structures of seagrasses overgrowing downstream of onshore aquaculture

Secondary production increases with species richness but decreases with species evenness of benthic invertebrates

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