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

Notman, Gillian M.; McGill, Rona A. R.; Hawkins, Stephen J.; Burrows, Michael T.

doi:10.3354/meps11691

Cited by 23 publications

(4 citation statements)

References 34 publications

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“…Whilst limpets can prevent establishment of fucoids in the north-east Atlantic, once a patch becomes established, juvenile Patella vulgata move under these patches along with adults (Hawkins & Hartnoll, 1983 b ; Hartnoll & Hawkins, 1985). Not only do the limpets benefit from shelter (amelioration of tide-out temperatures and relative humidity), but recent observations and work using isotopes (Davies et al ., 2007; Notman et al ., 2016) have confirmed that the limpets also eat the fucoids, confirming earlier work (Jones, 1948). Thus, a complex mix of positive and negative interactions plus chance recruitment events help generate and maintain patchiness on moderately exposed shores in the north-east Atlantic (Hawkins et al ., 1992).…”

Section: Positive Interactionssupporting

confidence: 85%

Rocky shores as tractable test systems for experimental ecology

et al. 2020

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Rocky shore ecology has been studied for a long time, starting with qualitative descriptions and becoming more quantitative and experimental over time. Some of the earliest manipulative experimental ecological studies were undertaken on rocky shores. Many, over time, have made considerable contributions to ecological theory, especially highlighting the importance of biological interactions at the community level. The suitability of rocky shores as convenient test systems for ecological experimentation is outlined. Here we consider contributions from rocky shores to the emerging concepts of supply-side ecology, the roles of competition, predation and grazing, disturbance and succession and positive interactions in structuring communities along environmental gradients. We then address alternative stable states, relationships between biodiversity and ecosystem functioning, and bottom-up and top-down control of ecosystems. We briefly consider the feedback and synergies between ecological concepts and experimental work on rocky shores, whilst still emphasizing the traditional values of marine natural history upheld in JMBA since its first publication. The importance of rigorous experimental designs championed by Underwood and co-workers is emphasized. Recent progress taking advantage of new technologies and emerging approaches is considered. We illustrate how experimental studies have shown the importance of biological interactions in modulating species and assemblage-level responses to climate change and informed conservation and management of coastal ecosystems.

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Section: Positive Interactionssupporting

confidence: 85%

Rocky shores as tractable test systems for experimental ecology

et al. 2020

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“…Future work using approaches such as gut content analysis (e.g. Notman et al 2016) and feeding preference experiments (e.g. Underwood & Clarke 2005) are needed to refine the interpretation of our current findings (Fry 2013) and allow a better understanding of the trophic interactions occurring in these tropical shores.…”

mentioning

confidence: 94%

Biodiversity surveys and stable isotope analyses reveal key differences in intertidal assemblages between tropical seawalls and rocky shores

Lai¹,

Loke²,

Bouma³

et al. 2018

Mar. Ecol. Prog. Ser.

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As coastal cities around the world expand, and sea levels and the frequency of storms rise, natural shorelines are steadily being replaced by artificial defences such as seawalls. A growing number of studies have documented the assemblages that inhabit these novel environments, and some have contrasted them against those found in their natural analogues: rocky shores. Most of this work has, however, been conducted in temperate regions, and there is limited research on seawalls in the tropics. To address this, we conducted monthly surveys of adjacent seawall and rocky shores at multiple sites around Singapore for 1 yr. Our results concur with previous temperate studies -artificial seawalls support a lower diversity but share a substantial number of species with rocky shores. Multivariate analyses reveal that assemblage differences were largely driven by species that were found in both habitats (e.g. detritivore Ligia exotica, grazer Monodonta labio and carnivorous whelk Drupella margariticola) but occurred in different abundances. We also conducted (for the first time on seawalls) stable isotope analyses to elucidate the diets of the common species found in both habitats. Turf algae, which were found to be present in significantly lower abundances on seawalls, could possibly contribute substantially to the diets of many dominant herbivores. Future seawall enhancement efforts in the tropics could therefore look into whether enhancing turf algae will improve biodiversity.

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“…Over time the larger plants died, dislodged by wave action (Jonsson et al, 2006) or eaten by the limpets (Notman et al, 2016). This led to a period in which the abundance of canopy algae massively declined ( Fig.…”

Section: Case Study 2 -The Torrey Canyon Oil Spillmentioning

confidence: 99%

Distinguishing globally-driven changes from regional- and local-scale impacts: The case for long-term and broad-scale studies of recovery from pollution

Hawkins

Evans

Mieszkowska

et al. 2017

Marine Pollution Bulletin

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Marine ecosystems are subject to anthropogenic change at global, regional and local scales. Global drivers interact with regional- and local-scale impacts of both a chronic and acute nature. Natural fluctuations and those driven by climate change need to be understood to diagnose local- and regional-scale impacts, and to inform assessments of recovery. Three case studies are used to illustrate the need for long-term studies: (i) separation of the influence of fishing pressure from climate change on bottom fish in the English Channel; (ii) recovery of rocky shore assemblages from the Torrey Canyon oil spill in the southwest of England; (iii) interaction of climate change and chronic Tributyltin pollution affecting recovery of rocky shore populations following the Torrey Canyon oil spill. We emphasize that "baselines" or "reference states" are better viewed as envelopes that are dependent on the time window of observation. Recommendations are made for adaptive management in a rapidly changing world.

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

Cited by 23 publications

References 34 publications

Rocky shores as tractable test systems for experimental ecology

Rocky shores as tractable test systems for experimental ecology

Biodiversity surveys and stable isotope analyses reveal key differences in intertidal assemblages between tropical seawalls and rocky shores

Distinguishing globally-driven changes from regional- and local-scale impacts: The case for long-term and broad-scale studies of recovery from pollution

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