Trophic Transfers from Seagrass Meadows Subsidize Diverse Marine and Terrestrial Consumers

Heck, Kenneth L.; Carruthers, Tim J. B.; Duarte, Carlos M.; Hughes, A. Randall; Kendrick, Gary A.; Orth, Robert J.; Williams, Susan W.

doi:10.1007/s10021-008-9155-y

Cited by 328 publications

(221 citation statements)

References 84 publications

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“…The allochthonous inputs of nutrients for beach fauna are ubiquitous on exposed sandy shores worldwide and the pulse subsidies have multiple effects on food web dynamics on coastal areas (Heck et al, 2008;McLachlan and Brown, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies highlighted the influence of beach wrack on the shore face as food resources for primary consumers (e.g. Crawley et al, 2009;Heck et al, 2008;Hyndes and Lavery, 2005;Rossi et al, 2010) and its role as an habitat for abundant beach invertebrates (e.g. Colombini et al, 2000;Duong and Fairweather, 2010;MacMillan and Quijón, 2012;Olabarria et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Niche segregation amongst sympatric species at exposed sandy shores with contrasting wrack availabilities illustrated by stable isotopic analysis

Bessa

Baeta

Marques

2014

Ecological Indicators

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a b s t r a c tWrack supplies (macroalgae, seagrasses and carrion) are a common feature of sandy beaches worldwide. These allochthonous inputs are a potential high-quality food subsidy for beach fauna, but little is known about the feeding ecology and niche segregation strategies of these species in beaches with limited wrack availabilities. We used stable isotopic ratios of nitrogen and carbon to examine the diets and niche segregation among three sympatric crustaceans, the amphipods Talitrus saltator and Talorchestia brito, and the isopod Tylos europaeus, in two temperate beaches, Cabedelo and Quiaios, on the Portuguese Atlantic coast, with contrasting wrack availabilities, over winter and summer. In the beach with limited wrack (Quiaios), consumers showed significantly different interspecific and temporal isotopic signatures, suggesting a distinct foraging habitat and niche differentiation. Mixing models outputs (SIAR) revealed in this case a seasonal shift in the diet of consumers from terrestrial sources in winter towards marinebased sources (phytoplankton) in the summer. In contrast, at Cabedelo, consumers showed clear overlap in isotopic signatures, with similar contributions of the available wrack to their diets. As a whole, an opportunistic and generalist feeding behaviour was described for these species, namely for T. saltator. Isotopic profiles support the occurrence of spatial overlap during summer but different foraging strategies of the three species in these beaches during winter. Our results show that on temperate beaches with ephemeral wrack supplies, consumers might need to adopt different foraging strategies and niche segregation for their subsistence, and additionally illustrate the viability of using stable isotopes to capture subtle changes in trophic niches.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Niche segregation amongst sympatric species at exposed sandy shores with contrasting wrack availabilities illustrated by stable isotopic analysis

Bessa

Baeta

Marques

2014

Ecological Indicators

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“…References to in situ studies were extracted from previous reviews concerning seagrass seascapes (Boström et al, 2006(Boström et al, , 2011Connolly and Hindell, 2006;Grober-Dunsmore et al, 2009;Heck et al, 2008;Horinouchi, 2007;Kendrick et al, 2005a;Vacchi et al, 2017). To complete this first approach, a search was then performed using the Scopus and Google Scholar data bases, using the keywords 'seagrass'; 'landscape'; 'seascape'; 'patch'; 'structure' and 'architecture'.…”

Section: Bibliographical Researchmentioning

confidence: 99%

Seascape ecology in Posidonia oceanica seagrass meadows: Linking structure and ecological processes for management

Abadie

Pace

Gobert

et al. 2018

Ecological Indicators

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A B S T R A C TSeagrass meadows constitute marine habitats in shallow water temperate and tropical coastal areas worldwide that have a high ecological and economic importance. Amongst the 60 or so seagrass species, the endemic Mediterranean species Posidonia oceanica forms meadows that are arguably the most important shallow water coastal habitat in the region but which are subjected to high anthropogenic pressures. Because of the relatively large size of the plant, the meadows formed by this seagrass have high architectural and morphological complexity, which results in different morphotypes or seascapes. While numerous studies of P. oceanica architectural characteristics for continuous meadows of the seagrass are available, few works have addressed seascape ecological features and the influence of environmental factors (natural and anthropogenic) thereon. In the present review, we give an overview of P. oceanica meadow architectural and morphological characteristics and how these contribute to Mediterranean landscapes and seascapes. Studies addressing the influence of natural and anthropogenic factors on morphometric features of different meadow types and landscape ecological characteristics of P. oceanica habitat are also reviewed, as well as their influence on ecosystem processes. Finally, by considering the available data and tools for seascape studies, we present a discussion on methods to assess seagrass seascapes within the framework of coastal management. Our review highlights several gaps in P. oceanica seascape ecology knowledge such as the lack of data on the spatial distribution of this engineer species, and the possibility to use modern techniques and procedures for analysing structural and ecosystemic data.

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“…One possible reason is that the hydras or algae were transported to the location of the partner. Many animals and plants are transported worldwide by humans and migratory birds (Mack and Lonsdale, 2001;Heck et al, 2008). A previous study on the phylogenetic relationships of several hydra species showed that many did not match their geographic origins (Martinez et al, 2010).…”

Section: Why Do Not Most Of the H Vulgaris Group Strains With Endosymentioning

confidence: 99%

Two-step evolution of endosymbiosis between hydra and algae

Ishikawa

Shimizu

Nozawa

et al. 2016

Molecular Phylogenetics and Evolution

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Trophic Transfers from Seagrass Meadows Subsidize Diverse Marine and Terrestrial Consumers

Cited by 328 publications

References 84 publications

Niche segregation amongst sympatric species at exposed sandy shores with contrasting wrack availabilities illustrated by stable isotopic analysis

Niche segregation amongst sympatric species at exposed sandy shores with contrasting wrack availabilities illustrated by stable isotopic analysis

Seascape ecology in Posidonia oceanica seagrass meadows: Linking structure and ecological processes for management

Two-step evolution of endosymbiosis between hydra and algae

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