Abstract
Burnupia mooiensis was already described in 1912 from specimens from the Mooi River, Potchefstroom while the oldest sample in the National Freshwater Snail Collection (NFSC) dates back to 1956. There are currently 14 species on record; however, to date the geographical distribution and habitat requirements of only two species were published. The geographical distribution of the 224 samples of B. mooiensis on record in the database of the NFSC and certain aspects of their sampling sites were analysed and the frequency of occurrence in different waterbodies, water conditions and substrata presented in tables. Data was statistically treated to determine habitat requirements. The largest percentage of samples came from rivers (57.59%), streams (18.30%) and the majority was collected in perennial habitats with stony substrata. Burnupia mooiensis is distributed mainly in the south-eastern areas of North-West, central areas of Gauteng and the south-western areas of Mpumalanga. In contrast to this, the distribution of B. capensis and B. stenochorias covers a much wider area, in spite of the fact that all three were already described by 1912 from sites in South Africa and that they share similar habitat requirements. The 14 species of Burnupia are spread over 556 different loci (0.0625°<sup>2</sup>) and therefore is one of the most widespread freshwater snail genera in South Africa. In view of its wide distribution, largely sessile, benthic lifestyle and the fact that they feed on epilithon, it is recommended that the feasibility to utilise them as bio-indicators of heavy metal pollution in waterbodies in different areas of South Africa be confirmed.
Highlights
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Die geografiese verspreiding van die 224 monsters van B. mooiensis wat in die databasis van die Nasionale Varswaterslakversameling (NVWSV) op rekord is en bepaalde aspekte van die vindplekke is ontleed, terwyl die voorkomsfrekwensie by verskillende watermassatipes, watertoestande en substrata in tabelle weergegee is
The geographical distribution of the 224 samples of B. mooiensis on record in the database of the National Freshwater Snail Collection (NFSC) and certain aspects of their sampling sites were analysed and the frequency of occurrence in different waterbodies, water conditions and substrata presented in tables
Summary
Die verspreiding en habitats van Burnupia mooiensis in Suid-Afrika: (Walker 1912 [Gastropoda: Ancylidae]). & Wolmarans, C.T., 2016, ‘Die verspreiding en habitats van Burnupia mooiensis in Suid-Afrika: (Walker 1912 [Gastropoda: Ancylidae])’, Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 35(1), a1372. Die 14 spesies van Burnupia is oor 556 verskillende lokusse (0.0625°2) versprei en is derhalwe van die mees wyd verspreide varswaterslakgenusse in Suid-Afrika. Distribution and habitats of Burnupia mooiensis in South Africa: (Walker 1912 [Gastropoda: Ancylidae]). The distribution of B. capensis and B. stenochorias covers a much wider area, in spite of the fact that all three were already described by 1912 from sites in South Africa and that they share similar habitat requirements. Alhoewel die voorkoms van Ancylidae in Suid-Afrika reeds in 1848 deur Krauss gerapporteer is, is die eerste omvattende studie van hierdie familie eers in 1923 deur Walker gepubliseer. Die volgende belangrike bydrae oor die Ancylidae is deur Connolly (1939) gemaak en drie dekades later het Oberholzer en Van Eeden (1969) die resultate van ’n indringende studie van die morfologie van Burnupia mooiensis gepubliseer
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