Influence of Ecklonia radiata kelp canopy on structure of macro-algal assemblages in Marmion Lagoon, Western Australia

Kendrick, Gary A.; Lavery, Paul; Phillips, Julia C.

doi:10.1007/978-94-011-4449-0_32

Cited by 30 publications

(53 citation statements)

References 23 publications

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“…The lagoon contains patchy high-and low-relief reefs with diverse algal assemblages (Phillips et al 1997, Kendrick et al 1999. Ecklonia radiata and Sargassum sp., form canopies underlain by a highly diverse understorey.…”

Section: Methodsmentioning

confidence: 99%

Use of d15N signatures of different functional forms of macroalgae and filter-feeders to reveal temporal and spatial patterns in sewage dispersal

Gartner¹,

Lavery²,

Smit³

2002

Mar. Ecol. Prog. Ser.

148

110

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Section: Methodsmentioning

confidence: 99%

Use of d15N signatures of different functional forms of macroalgae and filter-feeders to reveal temporal and spatial patterns in sewage dispersal

Gartner¹,

Lavery²,

Smit³

2002

Mar. Ecol. Prog. Ser.

148

110

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“…The southwest coast of Western Australia is one of the most species-rich 84 areas for macroalgae in the world (Bolton 1994). The composition and structure of algal 85 assemblages differ among regions at different latitudes in this region (Wernberg et al 2003; 86 Smale et al 2010), and between reefs of different geology (Harman et al 2003), 87 geomorphology (Toohey et al 2007), and wave exposure (Kendrick et al 1999 (Wahl and Mark 1999), the epibiota of basibionts such as T. torquatus represent 'samples' of 97 local communities. Patterns of epibiota richness on widespread basibionts may thus be 98 informative of regional and local drivers of community structure more generally as well as for 99 epibiota specifically.…”

Section: Al 2006) 57 58mentioning

confidence: 99%

Turban snails as habitat for foliose algae: contrasting geographical patterns in species richness

Wernberg

Tuya

Thomsen

et al. 2010

Mar. Freshwater Res.

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Understanding patterns of species richness is a major goal for ecologists, especially in space-limited habitats where many organisms live on top of others (epibiosis, e.g. by algae growing on gastropods in marine environments). We tested the hypotheses that species richness of epiflora on the gastropod Turbo torquatus would not differ between regions with similarly rich algal floras, and that epifloral richness would increase with increasing gastropod size. Macroalgal floras of Hamelin Bay (HB), Marmion (M), Jurien Bay (JB) and Kalbarri (K), Western Australia, ranged from ∼20 to 40 species reef–1 (JB = HB = M ≥ K). Epiflora on small T. torquatus (shell area <150 cm2) did not differ among regions but epifloral richness increased with increasing basibiont size. Large T. torquatus (>150 cm2) were only found in Hamelin Bay and Marmion, where epifloral richness differed substantially. Epifloral richness was positively related to basibiont size in Marmion but not in Hamelin Bay. However, densities of patellid limpets on large T. torquatus were ∼4× higher in Hamelin Bay than in Marmion, implying that limpet grazing suppresses epifloral richness. Epifloral richness on turbinids is not simply associated with regional species pools or gastropod size; rather, biological interactions at the scale of individual basibionts apparently govern broad scale patterns of epibiosis.

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“…Kelp beds are dominated by Ecklonia radiata in temperate WA, which forms large monospecific stands and may reduce small scale richness through competitive exclusion (Kendrick, Lavery, Phillips, 1999;Wernberg, Kendrick, Toohey, 2005). However, removal of the kelp canopy by wave disturbance and substantial habitat heterogeneity on subtidal reefs promote and maintain local assemblage richness and structure in space and time (Toohey, Kendrick, 2008;Toohey, Kendrick, Harvey, 2007;Wernberg, Goldberg, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…For these systems, the few explicit tests of spatial variability in assemblage structure have demonstrated high patchiness at small spatial scales (meters), which is superimposed onto large scale biogeographic shifts between regions (1000s of km) (Kendrick, Lavery, Phillips, 1999;Wernberg, Kendrick, Phillips, 2003). Furthermore, the only explicit test of taxonomic sufficiency (Goldberg, Kendrick, Walker, 2006), showed that aggregation to family level does not, in most instances, lead to unacceptable loss of ecological pattern, although this study was spatially restricted.…”

Section: Introductionmentioning

confidence: 99%

Assemblage turnover and taxonomic sufficiency of subtidal macroalgae at multiple spatial scales

Smale

Kendrick

Wernberg

2010

Journal of Experimental Marine Biology and Ecology

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Spatial variability in the structure of subtidal macroalgal assemblages in southwest Australia was examined at multiple spatial scales using a three-factor hierarchal design. Spatial extents ranged from metres (between quadrats) to many hundreds of kilometres (between regions), and the study encompassed >2000 km of temperate coastline. In addition, the influence of taxonomic resolution, from species level data through to class level, on spatial patterns was investigated to assess the potential evolutionary timescales of the pattern and for developing cost effective regionally applicable surrogates for biodiversity monitoring. Almost 300 species were identified from 14 sites, representing considerable biodiversity and a significant subset of the total benthic macroalgal diversity in the region (~1000 species). Multivariate variability was significant at all spatial scales examined, but most prominent at smallest spatial scales, regardless of taxonomic resolution. Assemblage and species turnover was pronounced at scales of metres to hundreds of metres. Generally, small scale patchiness was a ubiquitous pattern for all individual taxa examined, regardless of taxonomic resolution, while variability at the scale of 10s km was less important. Even so, differences in spatial variability between taxa were observed, and ecological and historical reasons for such differences are proposed. Taxonomic aggregation to family level had minimal effect on spatial patterns, but aggregation to order level led to changes in some aspects of patterns of assemblage structure. The unique and speciose macroalgal assemblages on subtidal reefs in southwest Australia are shaped by a complex array of historical and contemporary processes that act at multiple spatial (and temporal) scales. Understanding the relative importance of these processes requires that further manipulative and correlative work is conducted across a range of ecologically-important spatial scales.

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Influence of Ecklonia radiata kelp canopy on structure of macro-algal assemblages in Marmion Lagoon, Western Australia

Cited by 30 publications

References 23 publications

Use of d15N signatures of different functional forms of macroalgae and filter-feeders to reveal temporal and spatial patterns in sewage dispersal

Use of d15N signatures of different functional forms of macroalgae and filter-feeders to reveal temporal and spatial patterns in sewage dispersal

Turban snails as habitat for foliose algae: contrasting geographical patterns in species richness

Assemblage turnover and taxonomic sufficiency of subtidal macroalgae at multiple spatial scales

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