Consistency and variation in kelp holdfast assemblages: Spatial patterns of biodiversity for the major phyla at different taxonomic resolutions

Anderson, Marti J.; Diebel, Carol E.; Blom, Wilma M.; Landers, Todd J.

doi:10.1016/j.jembe.2004.12.023

Cited by 132 publications

(144 citation statements)

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“…Habitat volume has been shown to be an important factor in determining the richness and abundance of holdfast assemblages (Anderson et al, 2005;Blight and Thompson, 2008) and it is likely that the greater internal living space within the perennial kelps' holdfasts allowed for development of a more speciose and abundant assemblage. Moreover, the structure of L. ochroleuca holdfasts was notably more complex than the other kelp species, with the arrangement of haptera forming an intricate 3-dimensional matrix.…”

Section: Discussionmentioning

confidence: 99%

“…Mobile invertebrate assemblages associated with kelps can be highly diverse and abundant and represent an important component of the kelp forest biota (Anderson et al, 2005;Tuya et al, 2011) that warrant further research. Secondly, our quantification of biodiversity patterns was performed at the scale of individual sporophyte and additional work is needed at larger spatial scales, specifically that of the kelp-dominated habitat.…”

Section: Discussionmentioning

confidence: 99%

“…Kelp forests exhibit high levels of primary productivity (Mann, 1973;Krumhansl and Scheibling, 2012), form an important component of inshore food webs (Leclerc et al, 2013), and provide habitat for a wide range of associated flora and fauna (Anderson et al, 2005;. The ecological structure and functioning of kelp forest ecosystems is, however, being impacted by a range of environmental change stressors, including oceanic warming Vergés et al, 2014), extreme climatic events (Byrnes et al, 2011;Wernberg et al, 2013), reduced water quality (Gorgula and Connell, 2004;Moy and Christie, 2012), altered trophic interactions (Tegner and Dayton, 2000;Ling et al, 2009) and the spread of non-native species (Saunders and Metaxas, 2008).…”

Section: Introductionmentioning

confidence: 99%

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The structure of biogenic habitat and epibiotic assemblages associated with the global invasive kelp Undaria pinnatifida in comparison to native macroalgae

et al. 2015

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Kelp forests dominate temperate and polar rocky coastlines and represent critical marine habitats because they support elevated rates of primary and secondary production and high biodiversity. A major threat to the stability of these ecosystems is the proliferation of nonnative species, such as the Japanese kelp Undaria pinnatifida ('Wakame'), which has recently colonised natural habitats in the UK. We quantified the abundance and biomass of U. pinnatifida on a natural rocky reef habitat over 10 months to make comparisons with three native canopy-forming brown algae (Laminaria ochroleuca, Saccharina latissima, and Saccorhiza polyschides). We also examined the biogenic habitat structure provided by, and epibiotic assemblages associated with, U. pinnatifida in comparison to native macroalgae. Surveys conducted within the Plymouth Sound Special Area of Conservation indicated that U. pinnatifida is now a dominant and conspicuous member of kelp-dominated communities on natural substrata. Crucially, U. pinnatifida supported a structurally dissimilar and less diverse epibiotic assemblage than the native perennial kelp species. However, U. pinnatifidaassociated assemblages were similar to those associated with Saccorhiza polyschides, which has a similar life history and growth strategy. Our results suggest that a shift towards U. pinnatifida dominated reefs could result in impoverished epibiotic assemblages and lower local biodiversity, although this could be offset, to some extent, by the climate-driven proliferation of L. ochroleuca at the poleward range edge, which provides complex biogenic habitat and harbours relatively high biodiversity. Clearly, greater understanding of the long-term dynamics and competitive interactions between these habitat-forming species is needed to accurately predict future biodiversity patterns.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The structure of biogenic habitat and epibiotic assemblages associated with the global invasive kelp Undaria pinnatifida in comparison to native macroalgae

et al. 2015

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“…The quantification of assemblages' natural variability is imperative in order to identify relevant scales for investigating either natural processes or anthropogenic impacts on ecological systems (Anderson et al 2005b). Different environmental and biological processes responsible for shaping assemblage structure act at different temporal and spatial scales.…”

Section: Introductionmentioning

confidence: 99%

Spatial variability in intertidal macroalgal assemblages on the North Portuguese coast: consistence between species and functional group approaches

et al. 2012

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Natural assemblages are variable in space and time; therefore, quantification of their variability is imperative to identify relevant scales for investigating natural or anthropogenic processes shaping these assemblages. We studied the variability of intertidal macroalgal assemblages on the North Portuguese coast, considering three spatial scales (from metres to 10 s of kilometres) following a hierarchical design. We tested the hypotheses that (1) spatial pattern will be invariant at all the studied scales and (2) spatial variability of macroalgal assemblages obtained by using species will be consistent with that obtained using functional groups. This was done considering as univariate variables: total biomass and number of taxa as well as biomass of the most important species and functional groups and as multivariate variables the structure of macroalgal assemblages, both considering species and functional groups. Most of the univariate results confirmed the first hypothesis except for the total number of taxa and foliose macroalgae that showed significant variability at the scale of site and area, respectively. In contrast, when multivariate patterns were examined, the first hypothesis was rejected except at the scale of 10 s of kilometres. Both uni-and multivariate results indicated that variation was larger at the smallest scale, and thus, smallscale processes seem to have more effect on spatial variability patterns. Macroalgal assemblages, both considering species and functional groups as surrogate, showed consistent spatial patterns, and therefore, the second hypothesis was confirmed. Consequently, functional groups may be considered a reliable biological surrogate to study changes on macroalgal assemblages at least along the investigated Portuguese coastline.

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“…Comunidades bentônicas marinhas possuem um enorme potencial para a determinação desses padrões (e.g. Rex et al, 2005;Engle e Summers, 1999;Anderson et al, 2005).…”

Section: Francisco Carlos Rocha De Barros Junior Igor Cristino Silva unclassified

Baía de todos os santos: aspectos oceanográficos

Andrade¹,

Hatje²

2009

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Este livro agrega informações que subsidiam o entendimento da oceanografia da Baía de Todos os Santos. Propicia o embasamento científico para a interpretação de sua situação atual com vistas ao planejamento de futuros projetos de pesquisa e de ações gerenciais que venham a garantir a recuperação e a preservação de sua riqueza natural, como recifes de corais, estuários, manguezais, bem como a promoção da qualidade de vida das populações do Recôncavo Baiano.

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Consistency and variation in kelp holdfast assemblages: Spatial patterns of biodiversity for the major phyla at different taxonomic resolutions

Cited by 132 publications

References 59 publications

The structure of biogenic habitat and epibiotic assemblages associated with the global invasive kelp Undaria pinnatifida in comparison to native macroalgae

The structure of biogenic habitat and epibiotic assemblages associated with the global invasive kelp Undaria pinnatifida in comparison to native macroalgae

Spatial variability in intertidal macroalgal assemblages on the North Portuguese coast: consistence between species and functional group approaches

Baía de todos os santos: aspectos oceanográficos

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