Subsidy by Ascophyllum nodosum increases growth rate and survivorship of Patella vulgata

Davies, Andrew J.; Johnson, Mark P.; Maggs, Christine A.

doi:10.3354/meps07453

Cited by 10 publications

(8 citation statements)

References 27 publications

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“…On many more sheltered shores, P. vulgata aggregate around established stands of Ascophyllum nodosum and Fucus vesiculosus, and 'bite marks' are visually apparent on the algal fronds. The fronds are often much shorter than might be expected, consistent with the ends being directly grazed away by the nearby limpets (Davies et al 2007(Davies et al , 2008, G. M. Notman & S. J. Hawkins pers. obs.).…”

Section: Introductionmentioning

confidence: 53%

Macroalgae contribute to the diet of Patella vulgata from contrasting conditions of latitude and wave exposure in the UK

Notman

McGill²,

Hawkins³

et al. 2016

Mar. Ecol. Prog. Ser.

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Section: Introductionmentioning

confidence: 53%

Macroalgae contribute to the diet of Patella vulgata from contrasting conditions of latitude and wave exposure in the UK

Notman

McGill²,

Hawkins³

et al. 2016

Mar. Ecol. Prog. Ser.

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“…Herbivorous feeding activity increases the breakage of A. nodosum 's fronds (Viejo and Åberg , Toth and Pavia ) and limpets might cause the removal of a considerable amount of biomass (Davies et al. , , Lorenzen ). Population growth of A. nodosum in Portugal is highly sensitive to an increase in breakage of fronds (Araújo et al.…”

Section: Discussionmentioning

confidence: 99%

Trade‐offs between life‐history traits at range‐edge and central locations

Araújo

Serrão

Sousa-Pinto

et al. 2015

Journal of Phycology

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The allocation of resources to different life-history traits should represent the best compromise in fitness investment for organisms in their local environment. When resources are limiting, the investment in a specific trait must carry a cost that is expressed in trade-offs with other traits. In this study, the relative investment in the fitness-related traits, growth, reproduction and defence were compared at central and range-edge locations, using the seaweed Ascophyllum nodosum as a model system. Individual growth rates were similar at both sites, whereas edge populations showed a higher relative investment in reproduction (demonstrated by a higher reproductive allocation and extended reproductive periods) when compared to central populations that invested more in defence. These results show the capability of A. nodosum to differentially allocate resources for different traits under different habitat conditions, suggesting that reproduction and defence have different fitness values under the specific living conditions experienced at edge and central locations. However, ongoing climate change may threaten edge populations by increasing the selective pressure on specific traits, forcing these populations to lower the investment in other traits that are also potentially important for population fitness.

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“…Algal growth is also high during early successional stages after placement of new structures in the sea , Moschella et al 2005. Recent work has also shown that Ascophyllum is vulnerable to limpet grazing (Davies et al 2008), perhaps due to milder winters encouraging limpet recruitment coupled with increased wave action. Further south in Europe (Brittany), more anecdotal observations suggest Ascophyllum is being reduced due to limpet grazing (Lorenzen 2007 , Moore et al 2007a).…”

Section: Changes In Fucoid Canopiesmentioning

confidence: 92%

Consequences of climate-driven biodiversity changes for ecosystem functioning of North European rocky shores

Hawkins¹,

Sugden²,

Mieszkowska³

et al. 2009

Mar. Ecol. Prog. Ser.

247

208

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We review how intertidal biodiversity is responding to globally driven climate change, focusing on long-term data from rocky shores in the British Isles. Physical evidence of warming around the British Isles is presented and, whilst there has been considerable fluctuation, sea surface temperatures are at the highest levels recorded, surpassing previous warm periods (i.e. late 1950s). Examples are given of species that have been advancing or retreating polewards over the last 50 to 100 yr. On rocky shores, the extent of poleward movement is idiosyncratic and dependent upon life history characteristics, dispersal capabilities and habitat requirements. More southern, warm water species have been recorded advancing than northern, cold water species retreating. Models have been developed to predict likely assemblage composition based on future environmental scenarios. We present qualitative and quantitative forecasts to explore the functional consequences of changes in the identity, abundance and species richness of gastropod grazers and foundation species such as barnacles and canopy-forming algae. We forecast that the balance of primary producers and secondary consumers is likely to change along wave exposure gradients matching changes occurring with latitude, thereby shifting the balance between export and import of primary production. Increases in grazer and sessile invertebrate diversity are likely to be accompanied by decreasing primary production by large canopy-forming fucoids. The reasons for such changes are discussed in the context of emerging theory on the relationship between biodiversity and ecosystem functioning.

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Subsidy by Ascophyllum nodosum increases growth rate and survivorship of Patella vulgata

Cited by 10 publications

References 27 publications

Macroalgae contribute to the diet of Patella vulgata from contrasting conditions of latitude and wave exposure in the UK

Macroalgae contribute to the diet of Patella vulgata from contrasting conditions of latitude and wave exposure in the UK

Trade‐offs between life‐history traits at range‐edge and central locations

Consequences of climate-driven biodiversity changes for ecosystem functioning of North European rocky shores

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