Regional variation of coastal morphology in southwestern Australia: a synthesis

Sanderson, Peta G.; Eliot, Ian; Hegge, Bruce; Maxwell, Sara M.

doi:10.1016/s0169-555x(99)00132-4

Cited by 43 publications

(23 citation statements)

References 16 publications

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“…Geographic position (x-axis) and abundances (y-axis) are relativized (see 'Materials and methods'). Geographic position is expressed on a scale from -1 (south-eastern limit) to +1 (northern limit) sively replaced by granite reefs from Hamelin Bay to Esperance (Sanderson et al 2000), and there is a shift in the major algal habitats, with a decline in the dominance of the mono-specific kelp Ecklonia radiata beds and a matching increase in the dominance of fucalean algae (Wernberg et al 2003). A local-scale study from Hamelin Bay showed that reef fish assemblages differed between kelp-dominated limestone reefs and fucalean-dominated granite reefs (Harman et al 2003).…”

Section: Discussionmentioning

confidence: 99%

Testing the ‘abundant centre’ hypothesis on endemic reef fishes in south-western Australia

Tuya¹,

Wernberg²,

Thomsen³

2008

Mar. Ecol. Prog. Ser.

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The abundance of a species is generally expected to peak at the centre of its distribution range and decline towards the range limits. Empirical evidence for such 'abundant centre' patterns is, however, limited, particularly for subtidal species. We tested the 'abundant centre' hypothesis for 8 fish species endemic to the shallow rocky reefs of south-western Australia. Fish abundances were quantified at 6 locations (18 reefs) across ca. 1700 km of coastline, and patterns of distribution were determined by testing the goodness of fit of 3 biogeographical models: (1) 'normal' (i.e. 'abundant centre' distributions), (2) 'ramped' (increase in abundance towards one of the distributional limits), and (3) 'skewed normal' (skewed 'abundant centre' distributions). Two species had their maximum abundances at the centre of their ranges ('normal' patterns), while one species had its highest abundance near its south-eastern range limit ('skewed normal' pattern). Two species increased progressively in abundances towards their south-eastern range limits ('ramped' patterns), and 3 species showed no apparent patterns across their distribution ranges. Consequently, the expectation that species are most abundant at the centre of their ranges was not supported as a general model by the present study.

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Section: Discussionmentioning

confidence: 99%

Testing the ‘abundant centre’ hypothesis on endemic reef fishes in south-western Australia

Tuya¹,

Wernberg²,

Thomsen³

2008

Mar. Ecol. Prog. Ser.

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“…A reason may be the hydrology and geomorphology of the coast-line. Unpredictable disturbance due to extreme swell and wave action may seriously affect or destroy halacarid populations and the large and finegrained high-energy beaches and swell-exposed almost bare granite rocks (Sanderson et al, 2000;Short, 2006) offer only few habitats for a permanent or temporary colonization and hence stepping stones to isolated or defaunated areas.…”

Section: Biogeographical Remarksmentioning

confidence: 99%

Halacarid mites (Acari: Halacaridae) from Esperance, Western Australia: Notes on taxonomy and faunal distribution of non-Copidognathinae

Bartsch¹

2007

Rec West Aust Mus

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“…Klein e Menezes (2001) ao estudarem algumas praias de enseadas no litoral de Santa Catarina, também não encontraram esta relação, relatando inclusive que para o caso de praias abrigadas sua classifi cação deve ser mais centrada na análise dos parâmetros morfológicos em si, do que incluir variáveis externas a estes ambientes. Da mesma forma Sanderson et al (2000), com estudos realizadas baseados no modelo de Hegge et al (1996), não encontraram forte relação entre a morfologia praial e a dinâmica costeira, o qual ressalta que a herança geológica é o maior responsável pelo perfi l praial.…”

Section: Discussionunclassified

Caracterização Morfológica, Hidrodinâmica E Sedimentar Das Praias Abrigadas Cardoso E Lagoa Na Baia De Tijucas, Bombinhas- Sc.

Longarete

Dalinghaus

Abreu

2016

Rev. Bras. Geomorfol.

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Resumo:Este trabalho teve como objetivo a caracterização morfodinâmica e sedimentar das praias abrigadas do Cardoso e da Lagoa, ambas localizadas na baía de Tijucas, ao sul do município de Bombinhas-SC. Para esta caracterização realizaram-se levantamentos topográfi cos em cinco perfi s ao longo de cada praia, coletas de amostras sedimentares e medições visuais da altura e período de ondas. As amostragens ocorreram em saídas de campo com periodicidade sazonal. A partir dos dados de campo, foram analisadas as modifi cações dos perfi s ao longo do período amostral, as variáveis estatísticas do sedimento e os parâmetros ômega e ômega teórico propostos para praias expostas. As praias também foram classifi cadas segundo modelos propostos para ambientes protegidos e, por último, calculou-se a forma das praias. Os resultados mostraram que ambas as praias se enquadram na classifi cação de praias refl etivas por apresentarem valor de ômega inferior a 1, com granulometria de areia grossa e mais infl uenciadas pela

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Regional variation of coastal morphology in southwestern Australia: a synthesis

Cited by 43 publications

References 16 publications

Testing the ‘abundant centre’ hypothesis on endemic reef fishes in south-western Australia

Testing the ‘abundant centre’ hypothesis on endemic reef fishes in south-western Australia

Halacarid mites (Acari: Halacaridae) from Esperance, Western Australia: Notes on taxonomy and faunal distribution of non-Copidognathinae

Caracterização Morfológica, Hidrodinâmica E Sedimentar Das Praias Abrigadas Cardoso E Lagoa Na Baia De Tijucas, Bombinhas- Sc.

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