serikali ya mapinduzi zanzibar care tanzania and department
serikali ya mapinduzi zanzibar care tanzania and department
serikali ya mapinduzi zanzibar care tanzania and department
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Table 4.13: Relative abundance of some vertebrate groups <strong>and</strong> species in Ngezi -<br />
Vumawimbi forest reserves, Pemba (Source: This survey; various sources)<br />
Animal group Species Relative abundance<br />
Mammals<br />
Pemba Blue Duiker<br />
Rare<br />
Shrews<br />
Rare<br />
Galagos<br />
Moderate<br />
Zanzibar Red Colobus<br />
Rare<br />
Bats<br />
Abundant<br />
Pemba flying fox<br />
Abundant<br />
Vervet Monkeys<br />
Abundant<br />
Wild boar<br />
Rare<br />
Rodents<br />
Very abundant<br />
Civets<br />
Rare<br />
Marsh mongoose<br />
Rare<br />
Cape Clawless Otter<br />
Rare<br />
Birds<br />
Waterbids<br />
Pemba scops Owl<br />
Dickson’s Kestrel<br />
Pemba Green Pigeon<br />
Pemba Sunbird<br />
Pemba White Eye<br />
Violet-backed Starling<br />
Crowned Hornbill<br />
Other bird groups<br />
Abundant<br />
Moderate<br />
Abundant<br />
Moderate<br />
Abundant<br />
Abundant<br />
Rare<br />
Abundant<br />
Moderate<br />
Reptiles<br />
Amphibians<br />
Snakes<br />
Chameleons<br />
Lizards <strong>and</strong> skinks<br />
Abundant<br />
Rare<br />
Abundant<br />
Moderate<br />
4.2.3 Animal species richness <strong>and</strong> diversity<br />
The indices of species diversity considered only those species captured in the traps.<br />
The Shannon Weaver diversity index takes into account the number of individuals for<br />
each species as well as the total number of species. Three main taxonomic groups<br />
including mammals (shrews <strong>and</strong> rodents) reptiles <strong>and</strong> amphibians were captured on<br />
the traps. This included 2 species of mammals, 3 species of reptiles <strong>and</strong> 3 species of<br />
amphibians. When other species not captured on the traps are considered then a higher<br />
number of species could be recorded. The number of species trapped on each transect<br />
were: trapline 1 (4 species), trapline 2 (6 species), trapline 3 (2 species), trapline 4 (4<br />
species) trapline 5 (3 species) <strong>and</strong> trapline 6 (4 species). When considering the main<br />
taxonomic groups captured on the diversity was H’ was found to be 0.4965 with H’ max<br />
= of 0.6021 <strong>and</strong> homogeneity J = 0.8246. The species diversity for pooled results<br />
estimate the species diversity H’ = 0.6669 <strong>and</strong> H’ max = 0.9031 <strong>and</strong> homogeneity J =<br />
0.7385. No attempt was made to estimate species diversity for individual transects<br />
due to the poor catch.<br />
4.2.4 Important habitats for animals<br />
54
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