Functional traits provide new insight into recovery and succession at deep‐sea hydrothermal vents

Dykman, Lauren N.; Beaulieu, Stace E.; Mills, Susan W.; Solow, Andrew R.; Mullineaux, Lauren S.

doi:10.1002/ecy.3418

Cited by 16 publications

(12 citation statements)

References 68 publications

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“…For instance, Boschen-Rose et al (2021) used trait-based analyses to estimate the sensitivity of macrofaunal assemblages from the Kermadec volcanic arc to different types of mining impacts (such as sediment plume and seafloor disturbance by mining equipment) and produced local maps of vulnerable communities. Dykman et al (2021) highlighted the need for trait-based impact assessments by showing that communities' functional diversity (a proxy for ecosystem stability and resilience) recovered more slowly than species diversity following an eruption in the EPR.…”

Section: How Diverse and Variable Are Community Functional Traits?mentioning

confidence: 99%

Structure and Connectivity of Hydrothermal Vent Communities Along the Mid-Ocean Ridges in the West Indian Ocean: A Review

Perez

Sun

et al. 2021

Front. Mar. Sci.

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To date, 13 biologically active hydrothermal vent (HTV) fields have been described on the West Indian Ocean ridges. Knowledge of benthic communities of these vent ecosystems serves as scientific bases for assessing the resilience of these ecosystems under the global effort to strike an elegant balance between future deep-sea mining and biodiversity conservation. This review aims to summarize our up-to-date knowledge of the benthic community structure and connectivity of these Indian vents and to identify knowledge gaps and key research questions to be prioritized in order to assess the resilience of these communities. The HTVs in the West Indian Ocean are home to many unique invertebrate species such as the remarkable scaly-foot snail. While distinct in composition, the macrofaunal communities of the Indian HTVs share many characteristics with those of other HTVs, including high endemism, strong zonation at the local scale, and a simple food web structure. Furthermore, Indian vent benthic communities are mosaic compositions of Atlantic, Pacific, and Antarctic HTV fauna possibly owning to multiple waves of past colonization. Phylogeographic studies have shed new light into these migratory routes. Current animal connectivity across vent fields appears to be highly influenced by distance and topological barriers. However, contrasting differences in gene flow have been documented across species. Thus, a better understanding of the reproductive biology of the Indian vent animals and the structure of their population at the local scale is crucial for conservation purposes. In addition, increased effort should be given to characterizing the vents’ missing diversity (at both the meio and micro-scale) and elucidating the functional ecology of these vents.

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Section: How Diverse and Variable Are Community Functional Traits?mentioning

confidence: 99%

Structure and Connectivity of Hydrothermal Vent Communities Along the Mid-Ocean Ridges in the West Indian Ocean: A Review

Perez

Sun

et al. 2021

Front. Mar. Sci.

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“…Parasites may take longer to colonize and spread in the invertebrate community after disturbance, since transmission among invertebrates is more a function of relative host densities than of host feeding rates. Since our samples of the vent community were taken 13-15 years after the 2006 eruption, when the community was already in advanced stages of recovery [38,39], time since the (b) Successful life histories in island-like, disturbed habitats…”

Section: Discussionmentioning

confidence: 99%

Parasite diversity at isolated, disturbed hydrothermal vents

Dykman

Tepolt

Kuris³

et al. 2023

Proc. R. Soc. B.

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Habitat isolation and disturbance are important regulators of biodiversity, yet it remains unclear how these environmental features drive differences in parasite diversity between ecosystems. We test whether the biological communities in an isolated, frequently disturbed marine ecosystem (deep-sea hydrothermal vents) have reduced parasite richness and relatively fewer parasite species with indirect life cycles (ILCs) compared to ecosystems that are less isolated and less disturbed. We surveyed the parasite fauna of the biological community at the 9°50′N hydrothermal vent field on the East Pacific Rise and compared it to similar datasets from a well-connected and moderately disturbed ecosystem (kelp forest) and an isolated and undisturbed ecosystem (atoll sandflat). Parasite richness within host species did not differ significantly between ecosystems, yet total parasite richness in the vent community was much lower due to the low number of predatory fish species. Contrary to expectation, the proportion of ILC parasite species was not lower at vents due to a high richness of trematodes, while other ILC parasite taxa were scarce (nematodes) or absent (cestodes). These results demonstrate the success of diverse parasite taxa in an extreme environment and reinforce the importance of host diversity and food web complexity in governing parasite diversity.

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“…Biological traits analysis (BTA), which looks at trait structure and composition, has been increasingly used to better assess responses of coastal species in stressed ecosystems (Beukema et al 1999;Bremner et al 2006;Bremner 2008). BTA has also been applied to fauna subject to hydrogen sulfide stress at deep-sea methane seeps (Levin et al 2017) and hydrothermal vents (Dykman et al 2022). Species may be characterized by a suite of lifehistory, trophic, allometric, and mobility traits that link to stress vulnerability.…”

Section: Hypoxia In Restricted Mouth Low-inflow and Intermittently Cl...mentioning

confidence: 99%

Consequences of Mouth Closure and Hypoxia-Induced State Changes in Low-Inflow Estuaries: Benthic Community and Trait-Based Response

Levin

Mendoza

Neira

et al. 2022

Estuaries and Coasts

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The southern California coastline hosts low-inflow estuaries that have mouths that periodically close. Low-inflow estuaries can become hypoxic and are then often opened mechanically. The consequences of mouth closure and hypoxia (< 2 mg L−1 O2) on macrobenthic densities, species richness, diversity, composition, and biological traits were evaluated for legacy data generated by the Pacific Estuarine Research Lab for Los Peñasquitos Lagoon (LPL) (1991–2006) and Tijuana Estuary (TJE) (1988–2004). LPL closed at least annually and TJE remained open during the study period. Effects were moderated by zone within the estuary (relative to the mouth) and season. Periodic closure in LPL was associated with raised macrofaunal density and diversity, especially at the mouth, and with suppressed seasonality. Closure favored soft-bodied (non-calcified) non-bioturbating, mobile, epifaunal taxa in LPL with planktotrophic development, large branchiae, and no vision. There were more spionid and capitellid polychaetes, Traskorchestia traskiana, Cerithideopsis californica, Tagelus californianus, and phoronids during closure. In contrast, hypoxia (< 2 mg L−1) measured during faunal sampling was associated with lower densities in LPL and different taxonomic composition, but no difference in taxon richness or diversity. There were more corophiid amphipods, small snails, tubificid oligochaetes, Palaemon macrodactylus (shrimp), and Trichorixa reticulata (insects) under hypoxic conditions, and retention of taxa with very large or small bodies and with vision. TJE densities were nearly double those of LPL; taxon richness and diversity (H’) were also higher in TJE. TJE hosted more burrowing, large-bodied, highly calcified taxa with planktotrophic development and no vision than LPL. Differences in composition and traits between the two estuaries disappeared in the middle and upper reaches, where ocean flushing was more limited. Historical long-term monitoring data for benthos, such as the data set analyzed here, offer a valuable baseline for evaluating ecosystem response to changes induced by climate, infrastructure development, contamination, or restoration.

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Functional traits provide new insight into recovery and succession at deep‐sea hydrothermal vents

Abstract: Functional traits provide new insight into recovery and succession at deep-sea hydrothermal vents

Cited by 16 publications

References 68 publications

Structure and Connectivity of Hydrothermal Vent Communities Along the Mid-Ocean Ridges in the West Indian Ocean: A Review

Structure and Connectivity of Hydrothermal Vent Communities Along the Mid-Ocean Ridges in the West Indian Ocean: A Review

Parasite diversity at isolated, disturbed hydrothermal vents

Consequences of Mouth Closure and Hypoxia-Induced State Changes in Low-Inflow Estuaries: Benthic Community and Trait-Based Response

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