Fisheries in the Southern Border Zone of Takamanda - Impact ...

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No. of individuals (n = 1065) 1000 900 800 700 600 500 400 300 200 100 0 where there are greater proportions of secondary forest, and common in Obonyi I and Mfakwe. The cumulative size-class distribution indicates good regeneration and recruitment and no immediate impacts of utilization (Figure 6). 4.6 Fever bark (Annickia chlorantha) Table 8 summarizes the transect data for Fever bark. Compared to the other three sites, Takamanda is characterized by fewer individuals of A. chlorantha. Matene and Mfakwe in particular have high 50 Size-class (cm) concentrations of individuals with a high proportion of productive stems. The cumulative size-class distribution for this species exhibits good regeneration and recruitment and no immediate impacts of utilization (Figure 7). 4.7 Lianas: Eru (Gnetum spp.) and bush pepper (Piper guineensis) Piper guineensis shows a greater abundance in Takamanda Forest Reserve at 6.45 individuals/ha (Table 9) than in Mokoko Forest Reserve as 4 stems/ha. Although there are no comparative figures for Gnetum
No. of individuals (n = 175) 100 90 80 70 60 50 40 30 20 10 0 spp. and these data do not show the species as uncommon, there are many reports of local scarcity in areas of high exploitation. 4.8 Rattan palms 50 As Table 10 indicates, both commercial species of rattan (L. secundiflorum and E. macrocarpa) can be considered abundant. Regeneration and recruitment for these species are significant, and rattan is not at risk of over-harvesting in Takamanda Forest Reserve. Size-class (cm) 4.9 Results from interviews and surveys The remainder of this paper is based primarily on the results of our literature review, interviews, and market surveys. 4.9.1 Sustainability issues In general, NTFP exploitation that is not destructive (for example, the removal of the fruits of bush mango) can be described as relatively sustainable as long as there is evidence that the population is not declining over time through the constant removal of reproductive material (Cunningham 1999). Destructive harvesting practices that are undertaken at low levels of exploitation such as
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Smithsonian Institution SI/MAB Biod
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ii 10. Fisheries in the Southern Bo
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Mercy Abwe Dione Dept. of Biology,
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The Smithsonian Institution has lon
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The editors of this publication ext
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2 Sunderland-Groves et al. Figure 1
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4 Sunderland-Groves et al. Rainfall
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6 Sunderland-Groves et al. 7 Conser
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8 Sunderland-Groves et al. Europe,
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10 Comiskey and Dallmeier 2 Challen
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12 Comiskey and Dallmeier 5 Adaptiv
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14 Comiskey and Dallmeier identifie
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16 Comiskey and Dallmeier 5.4 Evalu
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18 Takamanda: the Biodiversity of a
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20 Sunderland et al. preliminary la
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22 Sunderland et al. avoided protru
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24 Sunderland et al. Table 2. Summa
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26 Sunderland et al. lowland forest
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28 Sunderland et al. impressive cat
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30 Sunderland et al. Herbaceous flo
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32 Sunderland et al. Table 3. Compa
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34 Sunderland et al. 5.5 Economic P
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36 Sunderland et al. Table 5. Summa
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38 Sunderland et al. monitoring pro
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40 Sunderland et al. Letouzey, R. 1
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42 Sunderland et al. Appendix 1. Pl
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44 Sunderland et al. Agelaea pentag
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46 Sunderland et al. Afzelia pachyl
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48 Sunderland et al. Rhabdophyllum
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50 Sunderland et al. Aningeria robu
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52 Sunderland et al. Nervilia sp. P
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54 Sunderland et al. g—2˜— @y
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56 O’Kah f22 y2@w—˜A g—22@IE
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58 O’Kah Table 3. Species found i
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60 O’Kah Table 6. Indicators of s
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62 O’Kah Larsen, T. B. 1997. Butt
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64 O’Kah Appendix 1 (cont.). Chec
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66 O’Kah Appendix 1 (cont.). Chec
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68 O’Kah Species distribution Tak
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70 O’Kah Species distribution Tak
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72 Takamanda: the Biodiversity of a
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74 h—2@y——A 2 IE2— y2@w—
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76 The sites which have been survey
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78 species from a phylogenetic poin
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80 Appendix 1. Species list and sam
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82 Family / Species Notes Locations
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84 LeBreton et al. 3 Methods A team
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86 LeBreton et al. Bothrolycus ater
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88 LeBreton et al. an important par
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90 LeBreton et al. Perret, J.-L. 19
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92 LeBreton et al. Appendix 1 (cont
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94 LeBreton et al. Appendix 1 (cont
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96 Languy and Motombe f 5 q—2˜
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98 Languy and Motombe Table 3. Thre
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100 Languy and Motombe encroachment
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102 Languy and Motombe Appendix 1.
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104 Languy and Motombe Appendix 1 (
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112 Sunderland-Groves and Maisels h
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Page 152 and 153: 142 Mdaihli et al. Basin and is sep
Page 154 and 155: 144 Table 1. Type and number of fis
Page 156 and 157: 146 Migrating Labeo spp. make up 10
Page 158 and 159: 148 Mdaihli et al. Mochokidae Barbu
Page 160 and 161: 150 Monthly yield (t) 200 160 120 8
Page 162 and 163: 152 Mdaihli et al. of Forests Aroun
Page 164 and 165: 154 Mdaihli et al. Appendix 1 (cont
Page 166 and 167: 156 Sunderland et al. Table 1. Majo
Page 168 and 169: 158 Sunderland et al. resources and
Page 170 and 171: 160 Sunderland et al. No. of indivi
Page 172 and 173: No. of individuals (n = 315) 200 15
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Page 184 and 185: 174 Slayback 7 H S IH type of autom
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Page 188 and 189: 178 Slayback Table 2: Areas of outp
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