Benthic control freaks: Effects of the tubiculous amphipod Haploops nirae on the specific diversity and functional structure of benthic communities

Rigolet, Carinne; Dubois, Stanislas F.; Thiébaut, Éric

doi:10.1016/j.seares.2013.07.013

Cited by 23 publications

(26 citation statements)

References 102 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The analysis of turnover in benthic assemblages revealed that the Haploops community shared very few species (ca. only 30%) with surrounding communities (Rigolet, Dubois & Thi ebaut 2014a). Stable isotope compositions of Haploops tubes and sediments revealed that the benthic primary production of the microphytobenthos (MPB) is enhanced in the Haploops community (Rigolet, Thi ebaut & Dubois 2014b).…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Investigating isotopic functional indices to reveal changes in the structure and functioning of benthic communities

et al. 2015

Self Cite

View full text Add to dashboard Cite

Summary 1.With the use of stable isotopes, new concepts have emerged based on the idea that the ecological niche can be approximated by the isotopic niche defined as a δ-space area with isotopic δ values as coordinates. This study aims to (1) redefine functional indices originally based on quantitative biological traits of species and demonstrate the ecological significance of newly defined isotopic functional indices (IFI) in a δ-isotopic space, (2) compare IFI using biomass data with existing unweighted isotopic indices using only isotopic compositions. 2. Using a community-wide approach, we tested IFI using isotopic compositions of a large set of associated species from two marine benthic communities widely reported in coastal shallow waters: the common Amphiura filiformis muddy-sand community and the engineered Haploops nirae sandy-mud community. Biomass and isotopic composition ( 13 C and 15 N) of all species were measured during four seasons. 3. IFI were calculated in the isotopic space defined by the two communities and variations were analysed: (1) Isotopic Functional Richness indices measure the overall extent of the community trophic niche. They are higher in the Haploops community due to a higher diversity in food sources but also to longer food chains. (2) Isotopic Functional Evenness indices quantify the regularity in species distribution and the density in species packing. They showed that the biomass is concentrated at the edges of the food web in the Haploops community, outside the isotopic range of the main food source. (3) Isotopic Functional Divergence indices quantify the degree to which species distribution maximizes the divergence. They showed a larger utilisation of secondary food sources in the Haploops community. 4. The IFI variations responded according to expectations overall, based on the extensive knowledge of those communities. Results highlighted that IFI weighted with species biomass provide new insights into how the structure of energy accumulation as biomass between species is likely to underpin community structure and the interplay between structural components of richness, diversity and evenness of biomass distribution.

show abstract

Section: Discussionmentioning

confidence: 99%

“…The centre of the bay is composed of pure muds supporting a dense population of the tubiculous amphipod Haploops nirae (hereafter the Haploops community), forming a habitat with a dense tube mat (ca. 10 000 tubes m À2 ) and a unique species assemblage (Rigolet, Dubois & Thi ebaut 2014a).…”

Section: S a M P L I N G P R O T O C O Lmentioning

confidence: 99%

Investigating isotopic functional indices to reveal changes in the structure and functioning of benthic communities

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…Epifaunal benthic invertebrates can be found in extremely high densities and generate biogenic structures that can influence the physical environment and provide important habitat for other species (Rigolet et al, 2014). The rugosity (complexity) and elevation of some of these structures is sufficient to reduce flow rates and resuspension and increase accretion (Wildish and Kristmanson, 1984).…”

Section: Ecosystem Function: Reef Building Water Velocity and Particmentioning

confidence: 99%

Marine biodiversity and ecosystem function relationships: The potential for practical monitoring applications

Strong

Andonegi

Bizsel³

et al. 2015

Estuarine, Coastal and Shelf Science

128

View full text Add to dashboard Cite

There is an increasing demand for environmental assessments of the marine environment to include ecosystem function. However, existing schemes are predominantly based on taxonomic (i.e. structural) measures of biodiversity. Biodiversity and Ecosystem Function (BEF) relationships are suggested to provide a mechanism for converting taxonomic information into surrogates of ecosystem function. This review assesses the evidence for marine BEF relationships and their potential to be used in practical monitoring applications (i.e. operationalized).Five key requirements were identified for the practical application of BEF relationships: 1) a complete understanding of strength, direction and prevalence of marine BEF relationships, 2) an understanding of which biological components are influential within specific BEF relationships, 3) the biodiversity of the selected biological components can be measured easily, 4) detail which ecological mechanisms are the most important for generating marine BEF relationships, e.g. identity effects or complementarity, and 5) establish what proportion of the overall functional variance is explained by biodiversity, and hence BEF relationships.Many positive and some negative BEF relationships were found within the literature, although many reproduced poorly the natural species richness, trophic structures or multiple functions of real ecosystems. Null relationships were also reported. The consistency of the positive and negative relationships was often low that compromised the ability to generalize BEF relationships and confident application of BEF within marine monitoring. Equally, some biological components and functions have received little or no investigation.Expert judgement was used to attribute biological components using spatial extent, presence and functional rate criteria. This approach highlighted the main contributing biological components to the ecosystem functions, and that many of the particularly influential components were found to have received the least amount of research attention.The need for biodiversity to be measureable (requirement 3) is possible for most biological components although difficult within the functionally important microbes. 3Identity effects underpinned most marine BEF relationships (requirement 4). As such, processes that translated structural biodiversity measures into functional diversity were found to generate better BEF relationships.The analysis of the contribution made by biodiversity, over abiotic influences, to the total expression of a particular ecosystem function was rarely measured or considered (requirement 5). Hence it is not possible to determine the overall importance of BEF relationships within the total ecosystem functioning observed. In the few studies where abiotic factors had been considered, it was clear that these modified BEF relationships and have their own direct influence on functional rate.Based on the five requirements, the information required for immediate 'operationalization' of BEF relationships within marin...

show abstract

“…However, the functional diversity of marine protists could be studied using a biological trait approach, following the examples of research on terrestrial plants (Lavorel and Garnier, 2002), or benthic (Rigolet et al, 2014) and pelagic macroorganisms (Mouillot et al, 2014). Trait-based approaches are a field of functional ecology that consist in using functional traits to predict the performances of species within ecosystems (i.e.…”

Section: Introductionmentioning

confidence: 99%

Coupling between taxonomic and functional diversity in protistan coastal communities

Ramond

Sourisseau

Simon

et al. 2019

Environmental Microbiology

View full text Add to dashboard Cite

Summary The study of protistan functional diversity is crucial to understand the dynamics of oceanic ecological processes. We combined the metabarcoding data of various coastal ecosystems and a newly developed trait‐based approach to study the link between taxonomic and functional diversity across marine protistan communities of different size‐classes. Environmental DNA was extracted and the V4 18S rDNA genomic region was amplified and sequenced. In parallel, we tried to annotate the operational taxonomic units (OTUs) from our metabarcoding dataset to 30 biological traits using published and accessible information on protists. We then developed a method to study trait correlations across protists (i.e. trade‐offs) in order to build the best functional groups. Based on the annotated OTUs and our functional groups, we demonstrated that the functional diversity of marine protist communities varied in parallel with their taxonomic diversity. The coupling between functional and taxonomic diversity was conserved across different protist size classes. However, the smallest size‐fraction was characterized by wider taxonomic and functional groups diversity, corroborating the idea that nanoplankton and picoplankton are part of a more stable ecological background on which larger protists and metazoans might develop.

show abstract

Benthic control freaks: Effects of the tubiculous amphipod Haploops nirae on the specific diversity and functional structure of benthic communities

Cited by 23 publications

References 102 publications

Investigating isotopic functional indices to reveal changes in the structure and functioning of benthic communities

Investigating isotopic functional indices to reveal changes in the structure and functioning of benthic communities

Marine biodiversity and ecosystem function relationships: The potential for practical monitoring applications

Coupling between taxonomic and functional diversity in protistan coastal communities

Contact Info

Product

Resources

About