Mgambo Forest Reserve: A biodiversity survey. - Eastern Arc ...

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Mgambo Forest Reserve 18 N Key: Scale: Open woodland Lowland forest Other 450m Figure 6 Sketch map of vegetation types in Mgambo FR (based on vegetation plots). East Usambara Conservation Area Management Programme Technical Paper 59
Mgambo Forest Reserve 19 4.3.1.2 Species Abundance The most abundant species within vegetation plots was Combretum zeyheri representing 9.0% of all individuals sampled. This species was present within 16 vegetation plots and was the most dominant species in 5 vegetation plots (Table 5). Combretum zeyheri was common at low altitudes in open woodland and lowland forest margins. Dombeya shupangae was ranked as the second most abundant species within vegetation plots representing 6.4% of all individuals sampled. This woodland species was found in 12 vegetation plots. All of the most abundant species are widespread in their distribution and common in woodland and lowland forest. Table 5 Ranked abundance of tree and shrub individuals within vegetation plots. Family Species Rank Number of Individuals % of total no. individuals In x plots (n=31) % of total no. plots COMBRETACEAE Combretum zeyheri 1 77 9.0 16 51.6 STERCULIACEAE Dombeya shupangae 2 55 6.4 12 38.7 TILIACEAE Grewia bicolor 3 41 4.8 13 41.9 LEGUMINOSAE Brachystegia spiciformis 4 33 3.8 3 9.7 LEGUMINOSAE Albizia anthelmintica 5 31 3.6 14 45.2 SAPOTACEAE Manilkara sulcata 6 28 3.3 6 19.4 SAPINDACEAE Lecaniodiscus fraxinifolius 7 27 3.1 9 29.0 BIGNONIACEAE Stereospermum kunthianum 7 27 3.1 9 29.0 LEGUMINOSAE Albizia gummifera 9 24 2.8 9 29.0 BORAGINACEAE Cordia ovalis 10 22 2.6 9 29.0 LEGUMINOSAE Lonchocarpus bussei 10 22 2.6 8 25.8 MELIACEAE Turraea holstii 10 22 2.6 7 22.6 TILIACEAE Grewia microcarpa 13 21 2.4 9 29.0 Combretum zeyheri and Dombeya shupangae were present in the greatest numbers of plots (9.0% and 6.4% of total individuals respectively) (Table 5). Both of these are woodland species that are fire tolerant. Combretum zeyheri was also found in the most number of vegetation plots (51.6% of all plots). Albizia anthelmintica, Grewia bicolor and Dombeya shupangae were also found in a large proportion of the vegetation plots (45.2%, 41.6% and 38.7% respectively). These are also all woodland species. 4.3.1.4 Endemic Status Only 4 individual specimens from 1 species recorded in vegetation plots was endemic to the Usambara Mountains, this species was Cassia abbreviata. There were 12 species (11.8% of total) and 97 individuals recorded as near endemic. The majority of species recorded were therefore widespread in their distribution (Table 4). Endemic and near endemic species were found in greater numbers on the western side of the reserve (Figures 7 and 8). Table 6 Summary of endemism for tree and shrub species recorded in the 50m x 20m vegetation plots (based on Table 4). Number of % of species Number of % of individuals species individuals Endemic to the Usambara Mountains (E) 1 1.0 4 0.5 Near endemic (N) 12 11.8 97 11.3 Widespread (W) 81 80.2 741 86.4 Unknown (?) 7 7.0 16 1.8 Total 101 100 858 100 East Usambara Conservation Area Management Programme Technical Paper 59
Page 1 and 2: TECHNICAL PAPER 59 Mgambo Forest Re
Page 3 and 4: Suggested Technical Paper Citation:
Page 5 and 6: Mgambo Forest Reserve i TABLE OF CO
Page 7 and 8: Mgambo Forest Reserve iii TABLE OF
Page 9 and 10: Mgambo Forest Reserve v EXECUTIVE S
Page 11 and 12: Mgambo Forest Reserve vii FOREWORD
Page 13 and 14: Mgambo Forest Reserve 1 1.0 INTRODU
Page 15 and 16: Mgambo Forest Reserve 3 1.2 Report
Page 17 and 18: Mgambo Forest Reserve 5 1.4 Data an
Page 19 and 20: Mgambo Forest Reserve 7 3.0 DESCRIP
Page 21 and 22: Mgambo Forest Reserve 9 N Mgambo F.
Page 23 and 24: Mgambo Forest Reserve 11 4.0 VEGETA
Page 25 and 26: Mgambo Forest Reserve 13 N Transect
Page 27 and 28: Mgambo Forest Reserve 15 Table 4 co
Page 29: Mgambo Forest Reserve 17 Table 4 co
Page 33 and 34: Mgambo Forest Reserve 21 4.3.1.5 Ec
Page 35 and 36: Mgambo Forest Reserve 23 N # # # #
Page 39 and 40: Mgambo Forest Reserve 27 Table 11 T
Page 41 and 42: Mgambo Forest Reserve 29 Table 14 C
Page 43 and 44: Mgambo Forest Reserve 31 4.3.2 Dist
Page 45 and 46: Mgambo Forest Reserve 33 Table 16 D
Page 47 and 48: Mgambo Forest Reserve 35 N pole ext
Page 49 and 50: Mgambo Forest Reserve 37 N a % fire
Page 53 and 54: Mgambo Forest Reserve 41 Ecological
Page 55 and 56: Mgambo Forest Reserve 43 5.0 FAUNA
Page 57 and 58: Mgambo Forest Reserve 45 5.3 Trappi
Page 59 and 60: Mgambo Forest Reserve 47 Table 20 B
Page 61 and 62: Mgambo Forest Reserve 49 Table 22 S
Page 63 and 64: Mgambo Forest Reserve 51 Table 23 c
Page 65 and 66: Mgambo Forest Reserve 53 5.4.2 Bird
Page 71 and 72: Mgambo Forest Reserve 59 An additio
Page 73 and 74: Mgambo Forest Reserve 61 KEY TO ABB
Page 79 and 80: Mgambo Forest Reserve 67 5.4.6 Dist
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Mgambo Forest Reserve 69 Species re
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Mgambo Forest Reserve 71 Number of
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Mgambo Forest Reserve 73 6.0 CONCLU
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Mgambo Forest Reserve 75 7.0 REFERE
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Mgambo Forest Reserve 77 Pohjonen,
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Mgambo Forest Reserve 79 Appendix 2
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Mgambo Forest Reserve 85 Medicinal
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Mgambo Forest Reserve 93 11b Summar
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Mgambo Forest Reserve 95 11b contin
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Mgambo Forest Reserve 99 54. Fronti
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Mgambo Forest Reserve: A biodiversity survey. - Eastern Arc ...

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