Terrestrial Molluscs of Pemba Island, Zanzibar, Tanzania
Author Information
Author(s): B. Rowson, B. H. Warren, C. F. Ngereza
Primary Institution: Biodiversity & Systematic Biology, National Museum of Wales
Hypothesis
The extent to which the biota support the hypothesis of greater oceanicity has been debated.
Conclusion
Pemba's land-snail fauna shows no clear evidence of impoverishment, imbalance, or a high rate of endemism, suggesting it is not significantly more oceanic than Unguja's.
Supporting Evidence
- At least 49 species of land-snails were found on Pemba Island.
- Only 4% to 8% of the species were island-endemic.
- 45% of the species found are restricted to forest reserves.
Takeaway
Scientists studied snails on Pemba Island and found that they are not as unique or rare as previously thought, meaning the island isn't as isolated as some believed.
Methodology
The study involved surveying various habitats on Pemba Island to document land-snail species and their distribution.
Limitations
The survey may not have captured all species due to the inherent challenges in inventorying slug faunas.
Digital Object Identifier (DOI)
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