High Diversity and Regional Endemism in Land-Snails of Eastern Tanzania

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dc.contributor.authorEmberton, Kenneth C.
dc.contributor.authorPearce, Timothy A.
dc.contributor.authorKasigwa, Peter F.
dc.contributor.authorTattersfield, Peter
dc.contributor.authorHabibu, Zambia
dc.date.accessioned2016-07-11T14:53:05Z
dc.date.available2016-07-11T14:53:05Z
dc.date.issued1997
dc.descriptionFull text can be accessed at http://link.springer.com/article/10.1023/A:1018384101789en_US
dc.description.abstractIn February/March 1995 we collected land snails (including slugs) at 12 stations in eastern Tanzania. A total of 571 person-hours yielded 9174 snails assigned to 159 morpho-species. The richest two sites each (<4ha of uniform forest) had 50 species (Amboni Cave) and 48 species (near Amani, Usambaras), nearly as great as the most species-rich sites known in the world; sieving of litter and soil would probably yield more species. In lowland (coastal) forests, both diversity and endemism seemed to decrease from north to south. Most snail species were found within only one of four coastal or one montane geographic regions, indicating substantial regional endemism. Only one species (Achatina fulica) appeared in all five regions, and 84% of all other species were found in only one (61%) or two regions (23%). The predatory streptaxids comprised about half the species and a third of the individuals at the Usambara site, an extremely high ratio of carnivores. Small snails (< 5mm greatest adult shell dimension) – many of which are probably undescribed species – comprise a substantial proportion of Tanzanian molluscan diversity; more surveys are needed, especially because of human pressures on the few forest patches remaining.en_US
dc.identifier.citationEmberton, K.C., Pearce, T.A., Kasigwa, P.F., Tattersfield, P. and Habibu, Z., 1997. High diversity and regional endemism in land snails of eastern Tanzania. Biodiversity & Conservation, 6(8), pp.1123-1136.en_US
dc.identifier.doi10.1023/A:1018384101789
dc.identifier.urihttp://hdl.handle.net/20.500.11810/3076
dc.language.isoenen_US
dc.publisherSpringer Linken_US
dc.subjectGastropodaen_US
dc.subjectLand snailsen_US
dc.subjectSlugsen_US
dc.subjectEast Africaen_US
dc.subjectBiodiversityen_US
dc.subjectTropical rainforestsen_US
dc.titleHigh Diversity and Regional Endemism in Land-Snails of Eastern Tanzaniaen_US
dc.typeJournal Article, Peer Revieweden_US
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