Recovering From Bias: A Call for Further Study of Underrepresented Tropical and Low‐Nutrient Estuaries

Vieillard, Amanda M.; Newell, Silvia E.; Thrush, Simon F.

doi:10.1029/2020jg005766

Cited by 20 publications

(17 citation statements)

References 79 publications

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“…Here, we investigate N transformation processes and CO 2 , CH 4 , N 2 O and N 2 fluxes in two tropical, forested coastal wetlands. We focuss on tropical estuaries to address knowledge gaps resulting from research bias toward temperate estuaries (Vieillard et al, 2020). We sampled mangrove and Melaleuca soils across various degrees of land-use and restoration in Vietnam.…”

Section: Introductionmentioning

confidence: 99%

Restoration impacts on rates of denitrification and greenhouse gas fluxes from tropical coastal wetlands

Comer‐Warner

Nguyen²,

Nguyen³

et al. 2022

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

Restoration impacts on rates of denitrification and greenhouse gas fluxes from tropical coastal wetlands

Comer‐Warner

Nguyen²,

Nguyen³

et al. 2022

Science of The Total Environment

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“…It maintains ecosystem health by removing harmful excess of nitrogen (Barbier et al., 2011 ; Thrush et al., 2013 ). Macrofaunal communities, through their functional traits, such as mobility, feeding mode, sediment particle movement, and creation of sediment structures, affect microbial processes influencing denitrification (Douglas et al., 2016 ; Vieillard et al., 2020 ). However, the major stressors, including terrestrial sediment and nutrient run‐off, cause significant changes to oxygen availability leading to eutrophication and mass mortalities (Kennish, 2002 ; Thrush et al., 2013 ), which alter both community composition and environmental characteristics of the benthos.…”

Section: Discussionmentioning

confidence: 99%

“…However, other variables that influence multifunctionality exist that were beyond the scope of this research. For example, the effect of denitrifying bacteria on denitrification rates that convert reactive nitrogen into N 2 gas, effectively removing N from the system (Vieillard et al., 2020 ). Macrofaunal organisms through their biological activity such as structure building and sediment particle movement introduce organic carbon and oxygen to deeper layers of sediment where denitrifiers reside (Siwicka & Thrush, 2020 ), and therefore, their role, although indirect, is critical in mediating denitrification rates (Vieillard & Thrush, 2021 ).…”

Section: Discussionmentioning

confidence: 99%

Beyond the single index: Investigating ecological mechanisms underpinning ecosystem multifunctionality with network analysis

Siwicka

Gladstone‐Gallagher

Hewitt

et al. 2021

Ecology and Evolution

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Ecosystems simultaneously deliver multiple functions that relate to both the activities of resident species and environmental conditions. One of the biggest challenges in multifunctionality assessment is balancing analytical simplicity with ecosystem complexity. As an alternative to index‐based approaches, we introduce a multivariate network analysis that uses network theory to assess multifunctionality in terms of the relationships between species' functional traits, environmental characteristics, and functions. We tested our approach in a complex and heterogeneous ecosystem, marine intertidal sandflats. We considered eight ecosystem function, five macrofaunal functional trait groups derived from 36 species, and four environmental characteristics. The indicators of ecosystem functions included the standing stock of primary producers, oxygen production, benthic oxygen consumption, DIN (ammonium and NOx efflux) and phosphate release from the sediments, denitrification, and organic matter degradation at the sediment surface. Trait clusters included functional groups of species that shared combinations of biological traits that affect ecosystem function: small mobile top 2 cm dwellers, suspension feeders, deep‐dwelling worms, hard‐bodied surface dwellers, and tube‐forming worms. Environmental characteristics included sediment organic matter, %mud, %shell hash, and %sediment water content. Our results visualize and quantify how multiple ecosystem elements are connected and contribute to the provision of functions. Small mobile top 2 cm dwellers (among trait clusters) and %mud (among environmental characteristics) were the best predictor for multiple functions. Detailed knowledge of multifunctionality relationships can significantly increase our understanding of the real‐world complexity of natural ecosystems. Multivariate network analysis, as a standalone method or applied alongside already existing single index multifunctionality methods, provides means to advance our understanding of how environmental change and biodiversity loss can influence ecosystem performance across multiple dimensions of functionality. Embedding such a detailed yet holistic multifunctionality assessment in environmental decision‐making will support the assessment of multiple ecosystem services and social‐ecological values.

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“…Tropical shelf seas are ecologically and economically important, but are under increasing anthropogenic pressure from coastal development, land-use change, resource extraction, and terrestrial inputs (Jennerjahn, 2012). At the same time, our understanding of the biogeochemistry of tropical shelf seas is more limited than for higher-latitude environments, which makes it harder to predict how anthropogenic pressures will affect tropical seas (Lønborg et al, 2021b;Vieillard et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Monsoon-driven biogeochemical dynamics in an equatorial shelf sea: time-series observations in the Singapore Strait

Martin

Moynihan

Chen

et al. 2021

Preprint

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Recovering From Bias: A Call for Further Study of Underrepresented Tropical and Low‐Nutrient Estuaries

Cited by 20 publications

References 79 publications

Restoration impacts on rates of denitrification and greenhouse gas fluxes from tropical coastal wetlands

Restoration impacts on rates of denitrification and greenhouse gas fluxes from tropical coastal wetlands

Beyond the single index: Investigating ecological mechanisms underpinning ecosystem multifunctionality with network analysis

Monsoon-driven biogeochemical dynamics in an equatorial shelf sea: time-series observations in the Singapore Strait

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