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NameSamaai, T. (2006). Biodiversity "hotspots", patterns of richness and endemism, and distribution of marine sponges in South Africa based on actual and interpolation data: A comparative approach. Zootaxa. 1358: 1-37.
SourceID9898
AuthorsSamaai, T.
Year2006
TitleBiodiversity "hotspots", patterns of richness and endemism, and distribution of marine sponges in South Africa based on actual and interpolation data: A comparative approach
JournalZootaxa
Suffix1358: 1-37
Type Publication
Full textAvailable for editors  PDF available [request]
Abstract“Hotspots” of biodiversity at a meso-scale diversity were examined for marine sponge populations throughout the temperate, subtropical and tropical South Africa. Actual and interpolated (predicted) data sets are presented in a comparative manner to compare the diversity patterns of South African Demospongiae species and their distribution in contiguous 5°grid sections, to demonstrate current knowledge of the sponge fauna in various coastal regions. Richness and endemism varied considerably between marine areas and grid sections, for species at all spatial scales. Richness and endemism were equally effective indicators of biodiversity “hotspots”, but differed in patterns between the two datasets. Species richness appears to be fairly unevenly distributed along the coast, and marked peaks occur in the south of the country, the greatest being in the area surrounding Cape Town (Sector 11); almost certainly the consequence of a disproportionately intense sampling effort at these locations. Levels of apparent endemism varied considerably between sectors, ranging from zero (Sector 1) to 71 species (Sector 11), with an average of 57% apparent endemic species recorded for all 35 regions based on the actual data, vs. 20% apparent endemics for the predicted data. The Bray-Curtis analysis (without transformations) showed no clear pattern of faunal relationships between the 35 selected sectors for the actual dataset, but the predicted data set showed three distinct faunal groups, the West Coast fauna extending from Cape Point northwards, a South Coast fauna, and an East Coast fauna.
Geographical
term
South Africa
Bibliographical
term
Biodiversity, Taxonomic and ecological diversity
Taxonomic
term
Porifera
Taxa
(61)
Checked: verified by a taxonomic editorAncorina corticata Lévi, 1964 (additional source)
Checked: verified by a taxonomic editorAncorina progressa Lendenfeld, 1907 accepted as Checked: verified by a taxonomic editorStryphnus progressus (Lendenfeld, 1907) (additional source)
Checked: verified by a taxonomic editorAncorina radix Marenzeller, 1889 (additional source)
Checked: verified by a taxonomic editorAurora actinosa Lévi, 1964 accepted as Checked: verified by a taxonomic editorRhabdastrella actinosa (Lévi, 1964) (additional source)
Checked: verified by a taxonomic editorAurora primitiva Burton, 1926 accepted as Checked: verified by a taxonomic editorRhabdastrella primitiva (Burton, 1926) (additional source)
Checked: verified by a taxonomic editorChelotropaena tenuirhabda Lendenfeld, 1907 accepted as Checked: verified by a taxonomic editorPoecillastra tenuirhabda (Lendenfeld, 1907) (additional source)
Checked: verified by a taxonomic editorChelotropella sphaerica Lendenfeld, 1907 (additional source)
Checked: verified by a taxonomic editorChondrilla australiensis Carter, 1873 (additional source)
Checked: verified by a taxonomic editorChondrosia reniformis Nardo, 1847 (additional source)
Checked: verified by a taxonomic editorCorallistes typus Schmidt, 1870 (misapplication)
Checked: verified by a taxonomic editorDercitus incertus (Kirkpatrick, 1903) accepted as Checked: verified by a taxonomic editorTriptolemma incertum (Kirkpatrick, 1903) (additional source)
Checked: verified by a taxonomic editorDercitus natalensis (Burton, 1926) (basis of record)
Checked: verified by a taxonomic editorDiscodermia natalensis Kirkpatrick, 1903 (additional source)
Checked: verified by a taxonomic editorEcionemia baculifera (Kirkpatrick, 1903) (additional source)
Checked: verified by a taxonomic editorEcionemia nigra Sollas, 1888 (additional source)
Checked: verified by a taxonomic editorErylus amorphus Burton, 1926 (additional source)
Checked: verified by a taxonomic editorErylus gilchristi Burton, 1926 (additional source)
Checked: verified by a taxonomic editorErylus polyaster Lendenfeld, 1907 (additional source)
Checked: verified by a taxonomic editorGastrophanella mammilliformis Burton, 1929 (additional source)
Checked: verified by a taxonomic editorGeodia basilea Lévi, 1964 (additional source)
Checked: verified by a taxonomic editorGeodia dendyi Burton, 1926 (additional source)
Checked: verified by a taxonomic editorGeodia gallica (Lendenfeld, 1907) (additional source)
Checked: verified by a taxonomic editorGeodia globosa (Baer, 1906) (additional source)
Checked: verified by a taxonomic editorGeodia libera Stephens, 1915 (additional source)
Checked: verified by a taxonomic editorGeodia littoralis Stephens, 1915 (additional source)
Checked: verified by a taxonomic editorGeodia megaster Burton, 1926 (additional source)
Checked: verified by a taxonomic editorGeodia ovifractus Burton, 1926 (additional source)
Checked: verified by a taxonomic editorGeodia perarmata Bowerbank, 1873 (additional source)
Checked: verified by a taxonomic editorGeodia robusta Lendenfeld, 1907 (additional source)
Checked: verified by a taxonomic editorGeodia stellata Lendenfeld, 1907 (additional source)
Checked: verified by a taxonomic editorIsops gallica Lendenfeld, 1907 accepted as Checked: verified by a taxonomic editorGeodia gallica (Lendenfeld, 1907) (additional source)
Checked: verified by a taxonomic editorLithobactrum forte Kirkpatrick, 1903 (additional source)
Checked: verified by a taxonomic editorMacandrewia auris Lendenfeld, 1907 (additional source)
Checked: verified by a taxonomic editorPachastrella caliculata Kirkpatrick, 1902 (additional source)
Checked: verified by a taxonomic editorPachastrella monilifera Schmidt, 1868 (additional source)
Checked: verified by a taxonomic editorPachymatisma areolata Bowerbank, 1872 (additional source)
Checked: verified by a taxonomic editorPachymatisma monaena Lendenfeld, 1907 (additional source)
Checked: verified by a taxonomic editorPenares alata (Lendenfeld, 1907) (additional source)
Checked: verified by a taxonomic editorPenares sphaera (Lendenfeld, 1907) (additional source)
Checked: verified by a taxonomic editorPetromica plumosa (Kirkpatrick, 1903) represented as Checked: verified by a taxonomic editorPetromica (Petromica) plumosa Kirkpatrick, 1903 (additional source)
Checked: verified by a taxonomic editorPoecillastra compressa (Bowerbank, 1866) (additional source)
Checked: verified by a taxonomic editorPoecillastra tuberosa (Lévi, 1964) (additional source)
Checked: verified by a taxonomic editorPsammoclema inordinatum (Kirkpatrick, 1903) (additional source)
Checked: verified by a taxonomic editorPsammopemma inordinatum Kirkpatrick, 1903 accepted as Checked: verified by a taxonomic editorPsammoclema inordinatum (Kirkpatrick, 1903) (additional source)
Checked: verified by a taxonomic editorSidonops globosa Baer, 1906 accepted as Checked: verified by a taxonomic editorGeodia globosa (Baer, 1906) (additional source)
Checked: verified by a taxonomic editorStelletta agulhana Lendenfeld, 1907 (additional source)
Checked: verified by a taxonomic editorStelletta agulhana var. paucistella Burton, 1926 (additional source)
Checked: verified by a taxonomic editorStelletta capensis Lévi, 1967 (additional source)
Checked: verified by a taxonomic editorStelletta cyathioides Burton, 1926 (additional source)
Checked: verified by a taxonomic editorStelletta farcimen Lendenfeld, 1907 (additional source)
Checked: verified by a taxonomic editorStelletta grubii Schmidt, 1862 (misapplication)
Checked: verified by a taxonomic editorStelletta grubioides Burton, 1926 (additional source)
Checked: verified by a taxonomic editorStelletta herdmani Dendy, 1905 (additional source)
Checked: verified by a taxonomic editorStelletta purpurea var. parvistella Ridley, 1884 accepted as Checked: verified by a taxonomic editorStelletta purpurea Ridley, 1884 (additional source)
Checked: verified by a taxonomic editorStelletta retroclada (Lévi, 1967) (additional source)
Checked: verified by a taxonomic editorStelletta rugosa Burton, 1926 (additional source)
Checked: verified by a taxonomic editorStelletta sphaerica Burton, 1926 (additional source)
Checked: verified by a taxonomic editorStelletta trisclera Lévi, 1967 (additional source)
Checked: verified by a taxonomic editorStoeba natalensis Burton, 1926 accepted as Checked: verified by a taxonomic editorDercitus natalensis (Burton, 1926) (additional source)
Checked: verified by a taxonomic editorStryphnus ponderosus (Bowerbank, 1866) (additional source)
Checked: verified by a taxonomic editorTriptolemus incertus Kirkpatrick, 1903 accepted as Checked: verified by a taxonomic editorTriptolemma incertum (Kirkpatrick, 1903) (additional source)
Distributions
(79)
Agulhas Bank for Checked: verified by a taxonomic editorAplysilla rosea (Barrois, 1876)  (inaccurate)
Agulhas Bank for Checked: verified by a taxonomic editorErylus polyaster Lendenfeld, 1907
Agulhas Bank for Checked: verified by a taxonomic editorGeodia gallica (Lendenfeld, 1907)
Agulhas Bank for Checked: verified by a taxonomic editorGeodia perarmata Bowerbank, 1873
Agulhas Bank for Checked: verified by a taxonomic editorGeodia robusta Lendenfeld, 1907
Agulhas Bank for Checked: verified by a taxonomic editorGeodia stellata Lendenfeld, 1907
Agulhas Bank for Checked: verified by a taxonomic editorIsops gallica Lendenfeld, 1907
Agulhas Bank for Checked: verified by a taxonomic editorPachastrella caliculata Kirkpatrick, 1902
Agulhas Bank for Checked: verified by a taxonomic editorPachymatisma monaena Lendenfeld, 1907
Agulhas Bank for Checked: verified by a taxonomic editorStelletta farcimen Lendenfeld, 1907
Cape Town for Checked: verified by a taxonomic editorGeodia globosa (Baer, 1906)
Cape Town for Checked: verified by a taxonomic editorSidonops globosa Baer, 1906
East London for Checked: verified by a taxonomic editorGeodia dendyi Burton, 1926
East London for Checked: verified by a taxonomic editorPetromica plumosa (Kirkpatrick, 1903)
False Bay (South Africa) for Checked: verified by a taxonomic editorGeodia perarmata Bowerbank, 1873
False Bay (South Africa) for Checked: verified by a taxonomic editorPachymatisma areolata Bowerbank, 1872
False Bay (South Africa) for Checked: verified by a taxonomic editorPenares alata (Lendenfeld, 1907)
False Bay (South Africa) for Checked: verified by a taxonomic editorStelletta trisclera Lévi, 1967
Hermanus for Checked: verified by a taxonomic editorAncorina progressa Lendenfeld, 1907
Hermanus for Checked: verified by a taxonomic editorChelotropaena tenuirhabda Lendenfeld, 1907
Hermanus for Checked: verified by a taxonomic editorChelotropella sphaerica Lendenfeld, 1907
Hermanus for Checked: verified by a taxonomic editorMacandrewia auris Lendenfeld, 1907
Hermanus for Checked: verified by a taxonomic editorPenares alata (Lendenfeld, 1907)
Hermanus for Checked: verified by a taxonomic editorPenares obtusus Lendenfeld, 1907
Hermanus for Checked: verified by a taxonomic editorStelletta agulhana Lendenfeld, 1907
Hermanus for Checked: verified by a taxonomic editorStelletta rugosa Burton, 1926
Hout Bay for Checked: verified by a taxonomic editorGeodia libera Stephens, 1915
Hout Bay for Checked: verified by a taxonomic editorGeodia perarmata Bowerbank, 1873
Knysna for Checked: verified by a taxonomic editorStelletta agulhana var. paucistella Burton, 1926
Mossel bay for Checked: verified by a taxonomic editorPenares alata (Lendenfeld, 1907)
Mossel bay for Checked: verified by a taxonomic editorStelletta agulhana Lendenfeld, 1907
Mossel bay for Checked: verified by a taxonomic editorStelletta agulhana var. paucistella Burton, 1926
Mossel bay for Checked: verified by a taxonomic editorStelletta rugosa Burton, 1926
Namaqua for Checked: verified by a taxonomic editorStelletta agulhana Lendenfeld, 1907
Namaqua for Checked: verified by a taxonomic editorStelletta trisclera Lévi, 1967
Namaqua for Checked: verified by a taxonomic editorStelletta trisclera Lévi, 1967
Natal for Checked: verified by a taxonomic editorAncorina corticata Lévi, 1964
Natal for Checked: verified by a taxonomic editorAurora actinosa Lévi, 1964
Natal for Checked: verified by a taxonomic editorDercitus incertus (Kirkpatrick, 1903)
Natal for Checked: verified by a taxonomic editorDercitus natalensis (Burton, 1926)
Natal for Checked: verified by a taxonomic editorEcionemia baculifera (Kirkpatrick, 1903)
Natal for Checked: verified by a taxonomic editorErylus amorphus Burton, 1926
Natal for Checked: verified by a taxonomic editorGeodia basilea Lévi, 1964
Natal for Checked: verified by a taxonomic editorGeodia dendyi Burton, 1926
Natal for Checked: verified by a taxonomic editorGeodia littoralis Stephens, 1915
Natal for Checked: verified by a taxonomic editorGeodia megaster Burton, 1926
Natal for Checked: verified by a taxonomic editorGeodia ovifractus Burton, 1926
Natal for Checked: verified by a taxonomic editorPachymatisma areolata Bowerbank, 1872
Natal for Checked: verified by a taxonomic editorPenares sphaera (Lendenfeld, 1907)
Natal for Checked: verified by a taxonomic editorStelletta horrens Kirkpatrick, 1902
Natal for Checked: verified by a taxonomic editorStelletta purpurea Ridley, 1884
Natal for Checked: verified by a taxonomic editorStelletta purpurea var. parvistella Ridley, 1884
Port Elisabeth for Checked: verified by a taxonomic editorStelletta grubioides Burton, 1926
Port Nolloth for Checked: verified by a taxonomic editorHalisarca dujardinii Johnston, 1842  (inaccurate)
Port Nolloth for Checked: verified by a taxonomic editorPenares sphaera (Lendenfeld, 1907)
Saldanha Bay for Checked: verified by a taxonomic editorAplysilla rosea (Barrois, 1876)  (inaccurate)
Saldanha Bay for Checked: verified by a taxonomic editorGeodia libera Stephens, 1915
Saldanha Bay for Checked: verified by a taxonomic editorGeodia perarmata Bowerbank, 1873
Saldanha Bay for Checked: verified by a taxonomic editorPachymatisma areolata Bowerbank, 1872
South African Exclusive Economic Zone for Checked: verified by a taxonomic editorStelletta farcimen Lendenfeld, 1907
Sri Lanka for Checked: verified by a taxonomic editorGeodia perarmata Bowerbank, 1873
Still Bay for Checked: verified by a taxonomic editorAncorina progressa Lendenfeld, 1907
Still Bay for Checked: verified by a taxonomic editorChelotropaena tenuirhabda Lendenfeld, 1907
Still Bay for Checked: verified by a taxonomic editorChelotropella sphaerica Lendenfeld, 1907
Still Bay for Checked: verified by a taxonomic editorChondrosia reniformis Nardo, 1847  (inaccurate)
Still Bay for Checked: verified by a taxonomic editorMacandrewia auris Lendenfeld, 1907
Still Bay for Checked: verified by a taxonomic editorPachymatisma areolata Bowerbank, 1872
Still Bay for Checked: verified by a taxonomic editorPenares alata (Lendenfeld, 1907)
Still Bay for Checked: verified by a taxonomic editorPenares obtusus Lendenfeld, 1907
Still Bay for Checked: verified by a taxonomic editorPenares sphaera (Lendenfeld, 1907)
Still Bay for Checked: verified by a taxonomic editorStelletta agulhana Lendenfeld, 1907
Still Bay for Checked: verified by a taxonomic editorStelletta agulhana var. paucistella Burton, 1926
Still Bay for Checked: verified by a taxonomic editorStelletta grubii Schmidt, 1862
Still Bay for Checked: verified by a taxonomic editorStelletta grubioides Burton, 1926
Still Bay for Checked: verified by a taxonomic editorStelletta rugosa Burton, 1926
Table Bay for Checked: verified by a taxonomic editorAplysilla rosea (Barrois, 1876)  (inaccurate)
Table Bay for Checked: verified by a taxonomic editorGeodia perarmata Bowerbank, 1873
Table Bay for Checked: verified by a taxonomic editorHalisarca dujardinii Johnston, 1842  (inaccurate)
Table Bay for Checked: verified by a taxonomic editorPachymatisma areolata Bowerbank, 1872
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2013-01-12 18:30:12Z  created  db_admin
2017-07-21 08:00:38Z  changed  Boury-Esnault, Nicole
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