@article {8995, title = {The response of microphytobenthos to physical disturbance, herbicide, and titanium dioxide nanoparticle exposure}, journal = {Marine Pollution Bulletin}, volume = {185}, year = {2022}, month = {Jan-12-2022}, pages = {114348}, abstract = {The microphytobenthos that form transient biofilms are important primary producers in intertidal, depositional habitats, yet we have only a limited understanding of how they respond to the cumulative impacts of the growing range of anthropogenic stressors to which they are exposed. We know even less about how the temporal alignment of exposure {\textendash} such as duration and exposure sequence {\textendash} may affect the response. Estuarine biofilms were cultured in mesocosms and exposed to the herbicide glyphosate and titanium dioxide (TiO2) nanoparticles in different sequences (glyphosate-first or TiO2-first), as well as in the presence and absence of physical disturbance. We found that at environmentally realistic chemical concentrations, the order of exposure was less important than the total stressor scenario in terms of impacts on key functional attributes and diatom community structure. Physical disturbance did not have an impact on functional attributes, regardless of exposure sequence.}, issn = {0025326X}, doi = {10.1016/j.marpolbul.2022.114348}, url = {https://linkinghub.elsevier.com/retrieve/pii/S0025326X2201030X}, author = {Rimmer, James E.V. and C{\'e}dric Hubas and Wyness, Adam J. and Bruno Jesus and Hartley, Morgan and Blight, Andrew J. and Prins, Antoine and Paterson, David M} } @inbook {5882, title = {Microphytobenthic Biofilms: Composition and Interactions}, booktitle = {Mudflat Ecology}, year = {2018}, pages = {63{\textendash}90}, publisher = {Springer International Publishing}, organization = {Springer International Publishing}, address = {Cham}, abstract = {

Microphytobenthic biofilms in mudflats are characterised by a wide variety of microorganisms and the production of large quantities of extracellular polymeric substances (EPS). In this chapter, the diversity of microphytobenthos (MPB) is reviewed and the complex interactions that take place in mudflat biofilms between microalgae and bacteria are discussed. Microbial interaction in natural biofilms is an emerging field of study in mudflat ecosystems. Although emphasis is placed on EPS and EPS-mediated interactions, because they have received most of the research attention, more direct interactions such as communication and defence are also discussed. Most studies to date have dealt with monospecific or multispecific laboratory biofilms, and environmental studies are still very rare. The development of this field of study in mudflat ecosystems is clearly a major requirement in our understanding of the functioning of mudflat biofilms.

}, isbn = {978-3-319-99194-8}, doi = {10.1007/978-3-319-99194-8_4}, url = {https://doi.org/10.1007/978-3-319-99194-8_4}, author = {C{\'e}dric Hubas and Passarelli, C and Paterson, David M}, editor = {Beninger, Peter G.} } @inbook {5883, title = {Mudflat Ecosystem Engineers and Services}, booktitle = {Mudflat Ecology}, year = {2018}, pages = {243{\textendash}269}, publisher = {Springer International Publishing}, organization = {Springer International Publishing}, address = {Cham}, abstract = {

Ecosystem engineers play a fundamental role in the creation, maintenance and transformation of habitats in tidal flats. Highly diverse in terms of size, phylogeny, and effect on their environment, they can facilitate or hinder a number of organisms, but generally have a positive influence on both the abundance and the diversity of mudflat organisms. The magnitude of the engineering effect is, however, largely dependent on the biotic and abiotic environment of the engineer. In particular, stressful habitats such as mudflats host a large number of ecosystem engineers; understanding interactions between them, and how they vary with abiotic variables, is therefore of crucial importance, to evaluate how ecosystem engineers affect benthic communities and ecosystem functioning. Such understanding will also help human populations which benefit from mudflat organisms and/or functioning (i.e. which derive ecosystem services from them), to maintain and manage the sustainably of tidal flats, in a way which maintains human health and well-being.

}, isbn = {978-3-319-99194-8}, doi = {10.1007/978-3-319-99194-8_10}, url = {https://doi.org/10.1007/978-3-319-99194-8_10}, author = {Passarelli, C and C{\'e}dric Hubas and Paterson, David M}, editor = {Beninger, Peter G.} } @article {3385, title = {Relationships between biodiversity and the stability of marine ecosystems: Comparisons at a European scale using meta-analysis}, journal = {Journal of Sea Research}, volume = {98}, year = {2015}, pages = {5-14}, abstract = {

Abstract The relationship between biodiversity and stability of marine benthic assemblages was investigated through meta-analyses using existing data sets (n\ =\ 28) covering various spatial (m{\textendash}km) and temporal (1973{\textendash}2006; ranging from 5 to \>\ 250\ months) scales in different benthic habitats (emergent rock, rock pools and sedimentary habitats) over different European marine systems (North Atlantic and western Mediterranean). Stability was measured by a lower variability in time, and variability was estimated as temporal variance of species richness, total abundance (density or \% cover) and community structure (using Bray{\textendash}Curtis dissimilarities on species composition and abundance). Stability generally decreased with species richness. Temporal variability in species richness increased with the number of species at both quadrat (\<\ 1\ m2) and site (\ \ 100\ m2) scales, while no relationship was observed by multivariate analyses. Positive relationships were also observed at the scale of site between temporal variability in species richness and variability in community structure with evenness estimates. This implies that the relationship between species richness or evenness and species richness variability is slightly positive and depends on the scale of observation. Thus, species richness does not stabilize temporal fluctuations in species number, rather species rich assemblages are those most likely to undergo the largest fluctuations in species numbers and abundance from time to time. Changes within community assemblages in terms of structure are, however, generally independent of biodiversity. Except for sedimentary and rock pool habitats, no relationship was observed between temporal variation of total abundances and diversity at either scale. Overall, our results emphasize that the relation between species richness and species-level measures of temporal variability depends on scale of measurements, type of habitats and the marine system (North Atlantic and Mediterranean) considered.

}, keywords = {Benthic Marine Coastal Habitats, Biodiversity Ecosystem Functioning, Community Variability, Diversity{\textendash}Stability Relationships, Temporal Variability}, issn = {1385-1101}, doi = {http://dx.doi.org/10.1016/j.seares.2014.08.004}, url = {http://www.sciencedirect.com/science/article/pii/S1385110114001609}, author = {Cusson, Mathieu and Tasman P. Crowe and Rita Ara{\'u}jo and Francisco Arenas and Rebbecca Aspden and Fabio Bulleri and Dominique Davoult and Kirstie Dyson and Simonetta Fraschetti and Kristjan Herk{\"u}l and C{\'e}dric Hubas and Stuart Jenkins and Jonne Kotta and Patrik Kraufvelin and Migne, A and Markus Molis and Olwyen Mulholland and Laure M.-L.J. No{\"e}l and Paterson, David M and James Saunders and Paul J. Somerfield and Isabel Sousa-Pinto and Nicolas Spilmont and Antonio Terlizzi and Lisandro Benedetti-Cecchi} }