Effect of an invasive mollusc, American slipper limpet Crepidula fornicata, on habitat suitability for juvenile common sole Solea solea in the Bay of Biscay

Pape, Olivier Le; Guérault, Daniel; Désaunay, Yves

doi:10.3354/meps277107

Cited by 38 publications

(29 citation statements)

References 46 publications

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“…As a mucus-net suspension feeder, it has added a completely new functional group to European shores. Although its effects on native fauna are generally assumed to be negative (e.g., Le Pape et al 2004) recent work suggests it may have positive effects for example on phytoplankton community structure and protection of mussels from predation (Thieltges et al 2006). Its role as a direct competitor of oysters has also been questioned.…”

Section: Recent Changes In Assemblage Compositionmentioning

confidence: 99%

Comparative Ecology of North Atlantic Shores: Do Differences in Players Matter for Process?

Jenkins

Moore

Burrows

et al. 2008

Ecology

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Abstract. The contrasting histories of the western and eastern shores of the North Atlantic Ocean provide an excellent opportunity to consider the implications of past events for present ecological processes and the functioning of marine ecosystems. Similarities and differences in assemblage composition have been driven by large-scale events, such as the trans-Arctic interchange, which has shaped the species pool, and cycles of glaciation, which have determined phases of local or regional extinction and colonization. More recently, anthropogenically induced invasions and local extinctions have significantly altered biogeographic distributions. Here we consider for both hard and soft substrata how the presence or absence of key taxa influences the outcomes of trophic and other biological interactions, and evaluate the consequences for community structure and ecosystem functioning. On intertidal hard substratum shores, biodiversity of epilithic microphagous grazers differs across latitudinal and longitudinal scales. Diversity is high in southern Europe but declines to the north and across the Atlantic. Lower diversity and the absence of patellid limpets in Iceland and the northwest Atlantic compared to Europe result in differences in consumer pressure, and an apparent contrast in the importance of herbivory vs. competitive interactions and predation pressure as community structuring processes. Interestingly, despite differences in ''process,'' community patterns are remarkably similar between the east and west. On soft sediment shores, there are conspicuous geographic differences in importance of bioturbators and large digging predators. Hemichordates can be abundant and important infaunal bioturbators in the western Atlantic, but they generally play a much reduced role in the eastern Atlantic. In addition, the number and diversity of digging predators on western Atlantic shores is high; the horseshoe crab, swimming portunid crabs, large whelks, excavating waterfowl, and an abundance of skates and rays exert intense predation pressure and associated biogenic disturbance to sediments. In Europe, except for excavating waterfowl these taxa are rare or absent. Thus, the importance of large, biological agents of disturbance is lower on European shores as a consequence of both recent anthropogenic pressure and natural processes over larger time scales. Consideration of key structuring taxa over the Atlantic shows that human-mediated transport has had considerable influence. Faunas on both sides of the Atlantic are becoming more similar to the point that some of the key differences in assemblage composition and hence community organization have blurred. Recent introductions as well as planned experimental manipulations provide the opportunity to understand the role of species identity in determining community structure and ecosystem functioning over large spatial scales; the North Atlantic may be an ideal test system to explore these areas.

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Section: Recent Changes In Assemblage Compositionmentioning

confidence: 99%

Comparative Ecology of North Atlantic Shores: Do Differences in Players Matter for Process?

Jenkins

Moore

Burrows

et al. 2008

Ecology

View full text Add to dashboard Cite

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“…Multiple ecosystem impacts have since been documented: sediment transformation (Ehrhold et al 1998), macrozoobenthos modifications (de Montaudouin et al 1999, Le Pape et al 2004) and changes in food web structure (Chauvaud et al 2000).…”

Section: Introductionmentioning

confidence: 99%

Exploitation of natural food sources by two sympatric, invasive suspension-feeders: Crassostrea gigas and Crepidula fornicata

Decottignies¹,

Beninger²,

Rincé³

et al. 2007

Mar. Ecol. Prog. Ser.

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The natural diets of the introduced suspension-feeders Crassostrea gigas (Thunberg) and Crepidula fornicata (L.) were determined at a mid-latitudinal oyster-farming site within their European range (Bourgneuf Bay, France). Carbon and nitrogen stable isotope deviations of Pacific oysters and slipper limpets were compared with potential food sources on 3 sampling dates (March, July and November 2003). Four end-members were assimilated by the 2 species: C 3 angiosperm detritus, macroalgae-C 4 plant detritus, marine phytoplankton and benthic diatoms. Given the lack of source digestibility data for suspension-feeders, and these 2 species in particular, extreme feasible combinations of relative end-member contributions were calculated according to 2 assimilation scenarios, using either IsoSource software or a concentration-dependent model. For both Crassostrea gigas and Crepidula fornicata, benthic and planktonic microalgae dominated diets on the 3 sampling dates. Planktonic microalgae were ingested in greater proportions than benthic species in July and November; however, benthic diatoms also formed a constant and significant part of diets in these months, and were consumed in greater proportions than planktonic species in March. Plant (especially macroalgal) detritus played a major role in the diets of the 2 suspension-feeders, notably in March 2003 when it became the principal ingested source. The substantial contribution of plant detritus to the natural diets of these species has not previously been reported. Although Crassostrea gigas and Crepidula fornicata showed significantly different isotopic deviations in March and July 2003, trophic niches of Crassostrea gigas and Crepidula fornicata overlapped on all 3 sampling dates, with a greater ingestion of identical sources in November. These 2 invasive species could therefore be trophic competitors in the context of end-member supply limitation. Contrary to previous analyses conducted on these 2 species in Europe, this study reports significant dietary overlap. Ecosystemspecific diet studies of invasive species are thus necessary in order to understand trophic overlap/ competition as a function of the diversity and availability of local food sources.

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“…Owing to an excess of zero counts, the GAM models were fitted using a 2-step approach, a delta model (Le Pape et al 2004, Potts & Elith 2006) with a presence/ absence part fitted with a binomial error distribu tion, and a positive part in which bird density was fitted with a gamma error distribution and a log link (Stefánson 1996). The standard error of the density predictions was calculated using the formula for the variances of the product of 2 random variables (Webley et al 2011).…”

Section: Distribution Modelsmentioning

confidence: 99%

Real-time species distribution models for conservation and management of natural resources in marine environments

Skov¹,

Heinänen²,

Thaxter³

et al. 2016

Mar. Ecol. Prog. Ser.

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Species distribution models in marine environments typically use static variables, partly due to the limited availability of fine-resolution dynamic predictor variables and sufficiently detailed species abundance data. Our aim was to describe and quantify the dynamic coupling between the distribution of marine species (seabirds) and the natural variability of their habitat in real time through the combination of a high-resolution hydrodynamic model, aerial digital surveys and real-time species distribution modelling. We used a 2-step (delta) generalized additive model at 500 m spatial resolution for assessment and prediction of the changing patterns of wintering red-throated divers (RTDs) Gavia stellata in the outer Thames estuary, United Kingdom. Our dynamic species distribution models successfully resolved the major oscillations in the distribution of RTDs and confirmed their tight association with frontal zones where the probability of prey encounter was higher. The relative model standard errors (%) were generally below 30% in the high-density areas. Area under the curve (AUC) values indicated that the models were capable of distinguishing presence from absence about 75% of the time. The predictive power of the achieved distribution models made it possible to accurately identify areas where RTDs were concentrated. Comparisons between visual aerial and digital stills aerial surveys documented that, in spite of similar patterns, the aerial digital surveys generally recorded significantly higher densities of RTDs than the visual aerial surveys. This study demonstrates how marine distribution models with assimilation of habitat variables from a well-calibrated fine-resolution hydrodynamic model coupled with the use of digital aerial surveys can facilitate the capture of detailed associations between seabirds and their dynamic habitats.

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Effect of an invasive mollusc, American slipper limpet Crepidula fornicata, on habitat suitability for juvenile common sole Solea solea in the Bay of Biscay

Cited by 38 publications

References 46 publications

Comparative Ecology of North Atlantic Shores: Do Differences in Players Matter for Process?

Comparative Ecology of North Atlantic Shores: Do Differences in Players Matter for Process?

Exploitation of natural food sources by two sympatric, invasive suspension-feeders: Crassostrea gigas and Crepidula fornicata

Real-time species distribution models for conservation and management of natural resources in marine environments

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