Diversity of invertebrate colonists on simple and complex substrates at hydrothermal vents on the Juan de Fuca Ridge

Kelly, Noreen E.; Meta×as, Anna

doi:10.3354/ab00085

Cited by 20 publications

(12 citation statements)

References 40 publications

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“…On the other hand, boring bivalves such as L. lithophaga, P. lithophaga, and R. dubia settled in this calcareous formation, bore the calcareous substrate by their glandular secretions and act as bio-eroders [65][66][67]. The occurrence of sand-burrowing bivalve species, such as Venus casina and Papillicardium papillosum, accounts for the heterogeneity of bioconstruction, well-known as a promoter of biodiversity [35,[68][69][70].…”

Section: Discussionmentioning

confidence: 99%

Comparative Analysis of Mollusc Assemblages from Different Hard Bottom Habitats in the Central Tyrrhenian Sea

et al. 2019

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Composition, trophic structure, and species-substrate relationships of molluscan assemblages inhabiting different hard bottom habitats (Sabellaria alveolata reef, photophilic bottoms, Phyllophora crispa sciaphilic assemblage, and coralligenous bioconstruction) were studied in two different sites of the Tyrrhenian Sea. In particular, molluscs from the Sabellaria alvevolata (Linnaeus, 1767) reef and coralligenous concretion were investigated, testing the hypothesis that bioconstructions increase the diversity and abundance of associated biota compared to the surrounding habitats. A total of 3134 individuals belonging to the classes of Polyplacophora (5 species, 24 individuals), Bivalvia (39 sp., 2734 ind.), and Gastropoda (53 sp., 376 ind.) were identified. These three taxonomic groups showed different distribution patterns in the studied habitats. Multivariate analyses revealed significant inter-habitat differences in the composition of mollusc assemblages, especially between bioconstructions and the other habitats. S. alveolata and coralligenous host the highest rich molluscan fauna when compared to the neighboring hard bottom habitats characterized by photophilic and sciaphilic assemblages. The first ones were dominated by bivalve suspension feeders, mainly represented by sessile and sedentary organisms, which act as bio-constructors, bio-eroders, or simply inhabit the several microhabitats provided by the bioconstructions, while the second ones host a rich molluscan fauna dominated by gastropod grazers and predators. The present study increases the comparative knowledge of molluscan assemblages inhabiting habitats of littoral plans of the Mediterranean Sea, providing pivotal information regarding biodiversity of coastal zones.

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Section: Discussionmentioning

confidence: 99%

Comparative Analysis of Mollusc Assemblages from Different Hard Bottom Habitats in the Central Tyrrhenian Sea

et al. 2019

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“…In addition to, or instead of, having nutritional symbionts, for some vent species that have limited access to tolerable conditions in high temperature or fluid flux gradients, the ability to form 3D structures may enable them to modulate flow and/or access specific habitats (Bates, Lee, Tunnicliffe, & Lamare, ; Bates, Tunnicliffe, & Lee, ; Kelly & Metaxas, ; Tsurumi & Tunnicliffe, ). Common Lepetodrilus fucensis limpets access and alter fluid flow patterns by stacking vertically (see Bates et al., ), like epiphytes on forest trees.…”

Section: Discussionmentioning

confidence: 99%

Both rare and common species make unique contributions to functional diversity in an ecosystem unaffected by human activities

Chapman

Tunnicliffe

Bates

2018

Diversity and Distributions

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Aim: Rare species typically contribute more to functional diversity than common species. However, humans have altered the occupancy and abundance patterns of many species-the basis upon which we define "rarity." Here, we use a globally unique dataset from hydrothermal vents-an untouched ecosystem-to test whether rare species over-contribute to functional diversity. Location: Juan de Fuca Ridge hydrothermal vent fields, Northeast Pacific Ocean. Methods:We first conduct a comprehensive review to set up expectations for the relative contributions of rare and common species to functional diversity. We then quantify the rarity and commonness of 37 vent species with relevant trait information to assess the relationship between rarity and functional distinctiveness-a measure of the uniqueness of the traits of a species relative to traits of coexisting species. Next, we randomly assemble communities to test whether rare species over-contribute to functional diversity in artificial assemblages ranging in species richness. Then, we test whether biotic interactions influence functional diversity contributions by comparing the observed contribution of each species to a null expectation. Finally, we identify traits driving functional distinctiveness using a distance-based redundancy analysis.Results: Across functional diversity metrics and species richness levels, we find that both rare and common species can contribute functional uniqueness. Some species always offer unique trait combinations, and these species host bacterial symbionts and provide habitat complexity. Moreover, we find that contributions of species to functional diversity may be influenced by biotic interactions.Main conclusions: Our findings show that many common species make persistent, unique contributions to functional diversity. Thus, it is key to consider whether the abundance and occupancy of species have been reduced, relative to historical baselines, when interpreting the contributions of rare species to functional diversity. Our work highlights the importance of testing ecological theory in ecosystems unaffected by human activities for the conservation of biodiversity. K E Y W O R D Sbiological trait, conservation, diversity, functional distinctiveness, human impact, hydrothermal vent, rarity, review, species richness, unique trait combinationThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…Under these conditions, it can be difficult to distinguish between effects of changing environmental conditions and biological succession. The influence of species interactions, however, are very clear in cases when foundation species provide complex physical structures that enhance the surface area and the range of chemical regimes (e.g., warmer hydrothermal fluid at the base of giant tubeworm clusters, and more moderate and cooler regimes at the top) potentially facilitating colonization of other species and playing an important role in succession (Sarrazin et al, 1997;Govenar and Fisher, 2007;Kelly and Metaxas, 2008;Marcus et al, 2009).…”

Section: Regional and Local Influences On Successionmentioning

confidence: 99%

Exploring the Ecology of Deep-Sea Hydrothermal Vents in a Metacommunity Framework

et al. 2018

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Species inhabiting deep-sea hydrothermal vents are strongly influenced by the geological setting, as it provides the chemical-rich fluids supporting the food web, creates the patchwork of seafloor habitat, and generates catastrophic disturbances that can eradicate entire communities. The patches of vent habitat host a network of communities (a metacommunity) connected by dispersal of planktonic larvae. The dynamics of the metacommunity are influenced not only by birth rates, death rates and interactions of populations at the local site, but also by regional influences on dispersal from different sites. The connections to other communities provide a mechanism for dynamics at a local site to affect features of the regional biota. In this paper, we explore the challenges and potential benefits of applying metacommunity theory to vent communities, with a particular focus on effects of disturbance. We synthesize field observations to inform models and identify data gaps that need to be addressed to answer key questions including: (1) what is the influence of the magnitude and rate of disturbance on ecological attributes, such as time to extinction or resilience in a metacommunity; (2) what interactions between local and regional processes control species diversity, and (3) which communities are "hot spots" of key ecological significance. We conclude by assessing our ability to evaluate resilience of vent metacommunities to human disturbance (e.g., deep-sea mining). Although the resilience of a few highly disturbed vent systems in the eastern Pacific has been quantified, these values cannot be generalized to remote locales in the western Pacific or mid Atlantic where disturbance rates are different and information on local controls is missing.

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Diversity of invertebrate colonists on simple and complex substrates at hydrothermal vents on the Juan de Fuca Ridge

Cited by 20 publications

References 40 publications

Comparative Analysis of Mollusc Assemblages from Different Hard Bottom Habitats in the Central Tyrrhenian Sea

Comparative Analysis of Mollusc Assemblages from Different Hard Bottom Habitats in the Central Tyrrhenian Sea

Both rare and common species make unique contributions to functional diversity in an ecosystem unaffected by human activities

Exploring the Ecology of Deep-Sea Hydrothermal Vents in a Metacommunity Framework

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