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

More documents

Recommendations

Info

96 Languy and Motombe f 5 q—2˜— w22@IE2—A y2@w—˜A H S IH u 5 5 Figure 1. Bird sampling sites in Takamanda Forest Reserve, Camerooon In addition to general observations, we used mist nets at eight sites (Figure 1 and Table 2) to maximize the chances of recording shy forest species. The bird survey lasted for a total of 36 field days (excluding transport) and was undertaken during three time intervals: 8-29 January 2001, 10-18 March 2001, and 10-22 December 2001. An experienced bird observer (Njie) was in the field during all three intervals and was responsible for data collection. Assistants from nearby villages acted as guides and also helped in erecting the mist nets. Takamanda: the Biodiversity of an African Rainforest 5 w— w— 5 5 5 5 w—— 5 5 5 5 5 3 Results 3.1 Species richness A total of 309 species of birds were recorded during the surveys, not including four species recorded by World Wildlife Fund in 1988 through the use of mist nets. Including those species brings the total to 313 species known to occur in Takamanda—an impressive number when compared to protected areas such as Campo National Park, Dja Faunal Reserve, or Lobeke National Park, which have been more extensively surveyed. We estimate that further surveys at different times of the year and in different sectors (particularly at the highest altitudes) of the Reserve should increase the total number of species.
Assessment of the Bird Fauna Table 1. Location of observations in Takamanda Forest Reserve, Cameroon. Site Name Coordinates Kekpani 06Ê05’841”N: 09Ê23’929”E Mbu 06Ê00’786”N: 09Ê27’389”E Assam 06Ê00’501”N: 09Ê27’559”E Mfakwe 06Ê03’695”N: 09Ê25’520”E Takamanda 06Ê01’146”N: 09Ê16’267”E Takwo 06Ê08’157”N: 09Ê.36.253”E Obonyi I 06Ê07’938”N: 09Ê15’465”E Obonyi III 06Ê07’784”N: 09Ê17’233”E Matene 06Ê16’150”N: 09Ê21’404”E Mende 06Ê19’385”N: 09Ê22’779”E Mbilishi 06Ê11’693”N: 09Ê27’401”E Basho I 06Ê08’366”N: 09Ê27’091”E Akwa 06Ê03’442”N: 09Ê28’500”E Nyang 05Ê57’115”N: 09Ê25’364”E This high diversity is almost certainly the result of the variety of ecosystems found in the Reserve: lowland Guineo-Congolian forest (including forested rivers), montane forests, and high-altitude grasslands. Of special significance is the transition forest between montane and lowland forests, a forest type that suffers from encroachment in Cameroon and Africa in general, but that holds a large variety of birds. Table 2. Location of mist nets in Takamanda Forest Reserve, Cameroon. Site Name Coordinates Obonyi I forest 06Ê07’488”N; 09Ê12’888”E near Magbe River Mende Hills 06Ê19’400”N; 09Ê23’474”E Kekpani forest 06Ê05’841”N; 09Ê23’929”E Takamanda forest 06Ê03’160”N; 09Ê16’794”E Mblishi forest 06Ê11’693”N: 09Ê27’401”E Obonyi III forest 06°07’784”N; 09°17’233”E Mbu 06Ê00’786”N: 09Ê27’389”E Nyang 05Ê57’115”N: 09Ê25’364”E 3.2 Threatened species As shown in Table 3, nine threatened species have been recorded so far in Takamanda. Of these, one—the Whitethroated Mountain Babbler Kupeornis gilberti—is considered “endangered.” Two—Grey-necked Picathartes Picathartes oreas and Bannerman’s Weaver Ploceus bannermani—are “vulnerable,” while six others—Hartlaub’s Duck Pteronetta hartlaubii, Yellowcasqued Wattled Hornbill Ceratogymna elata, Cameroon Montane Greenbul Andropadus montanus, Crossley’s Ground-thrush Zoothera crossleyi, Bangwa Forest Warbler Bradypterus bangwaensis, and White-tailed Warbler Poliolais lopezi—are “near threatened” (BirdLife International 2000). The occurrence of these species confirms the global significance of Takamanda Forest Reserve for imperiled bird species. 3.3 Restricted-range/endemic species A key outcome of the survey was the discovery of 16 species with restricted ranges (Table 4). Restricted-range species have a total world range of less than 50,000 km² and thus are very limited in their distribution. The species are grouped by Endemic Bird Areas (EBA), areas which encompass the overlapping breeding ranges of restrcitedrange bird species, such that the complete ranges of at least two restricted-range species are entirely included within the boundary of the EBA (Stattersfield et al. 1998). Thirteen of the 16 restricted-range species found in Takamanda are confined to the Cameroon-Nigeria mountain chain, and three are restricted to the Cameroon- Gabon lowlands. Such a vast array of restricted-range species shows the importance of Takamanda Forest Reserve as a sanctuary for species that are endemic to the Cameroon mountains. SI/MAB Series #8, 2003 97
Page 2 and 3:
Smithsonian Institution SI/MAB Biod
Page 4 and 5:
ii 10. Fisheries in the Southern Bo
Page 6 and 7:
Mercy Abwe Dione Dept. of Biology,
Page 8 and 9:
The Smithsonian Institution has lon
Page 10 and 11:
The editors of this publication ext
Page 12 and 13:
2 Sunderland-Groves et al. Figure 1
Page 14 and 15:
4 Sunderland-Groves et al. Rainfall
Page 16 and 17:
6 Sunderland-Groves et al. 7 Conser
Page 18 and 19:
8 Sunderland-Groves et al. Europe,
Page 20 and 21:
10 Comiskey and Dallmeier 2 Challen
Page 22 and 23:
12 Comiskey and Dallmeier 5 Adaptiv
Page 24 and 25:
14 Comiskey and Dallmeier identifie
Page 26 and 27:
16 Comiskey and Dallmeier 5.4 Evalu
Page 28 and 29:
18 Takamanda: the Biodiversity of a
Page 30 and 31:
20 Sunderland et al. preliminary la
Page 32 and 33:
22 Sunderland et al. avoided protru
Page 34 and 35:
24 Sunderland et al. Table 2. Summa
Page 36 and 37:
26 Sunderland et al. lowland forest
Page 38 and 39:
28 Sunderland et al. impressive cat
Page 40 and 41:
30 Sunderland et al. Herbaceous flo
Page 42 and 43:
32 Sunderland et al. Table 3. Compa
Page 44 and 45:
34 Sunderland et al. 5.5 Economic P
Page 46 and 47:
36 Sunderland et al. Table 5. Summa
Page 48 and 49:
38 Sunderland et al. monitoring pro
Page 50 and 51:
40 Sunderland et al. Letouzey, R. 1
Page 52 and 53:
42 Sunderland et al. Appendix 1. Pl
Page 54 and 55:
44 Sunderland et al. Agelaea pentag
Page 56 and 57: 46 Sunderland et al. Afzelia pachyl
Page 58 and 59: 48 Sunderland et al. Rhabdophyllum
Page 60 and 61: 50 Sunderland et al. Aningeria robu
Page 62 and 63: 52 Sunderland et al. Nervilia sp. P
Page 64 and 65: 54 Sunderland et al. g—2˜— @y
Page 66 and 67: 56 O’Kah f22 y2@w—˜A g—22@IE
Page 68 and 69: 58 O’Kah Table 3. Species found i
Page 70 and 71: 60 O’Kah Table 6. Indicators of s
Page 72 and 73: 62 O’Kah Larsen, T. B. 1997. Butt
Page 74 and 75: 64 O’Kah Appendix 1 (cont.). Chec
Page 76 and 77: 66 O’Kah Appendix 1 (cont.). Chec
Page 78 and 79: 68 O’Kah Species distribution Tak
Page 80 and 81: 70 O’Kah Species distribution Tak
Page 82 and 83: 72 Takamanda: the Biodiversity of a
Page 84 and 85: 74 h—2@y——A 2 IE2— y2@w—
Page 86 and 87: 76 The sites which have been survey
Page 88 and 89: 78 species from a phylogenetic poin
Page 90 and 91: 80 Appendix 1. Species list and sam
Page 92 and 93: 82 Family / Species Notes Locations
Page 94 and 95: 84 LeBreton et al. 3 Methods A team
Page 96 and 97: 86 LeBreton et al. Bothrolycus ater
Page 98 and 99: 88 LeBreton et al. an important par
Page 100 and 101: 90 LeBreton et al. Perret, J.-L. 19
Page 102 and 103: 92 LeBreton et al. Appendix 1 (cont
Page 104 and 105: 94 LeBreton et al. Appendix 1 (cont
Page 108 and 109: 98 Languy and Motombe Table 3. Thre
Page 110 and 111: 100 Languy and Motombe encroachment
Page 112 and 113: 102 Languy and Motombe Appendix 1.
Page 114 and 115: 104 Languy and Motombe Appendix 1 (
Page 122 and 123: 112 Sunderland-Groves and Maisels h
Page 124 and 125: 114 Sunderland-Groves and Maisels T
Page 126 and 127: 116 Sunderland-Groves and Maisels T
Page 128 and 129: 118 Sunderland-Groves and Maisels B
Page 130 and 131: 120 Sunderland-Groves and Maisels S
Page 132 and 133: 122 Sunderland-Groves and Maisels A
Page 138 and 139: 128 Takamanda: the Biodiversity of
Page 140 and 141: 130 Sunderland-Groves et al. In mor
Page 142 and 143: 132 Sunderland-Groves et al. proved
Page 144 and 145: 134 Sunderland-Groves et al. q—2
Page 146 and 147: 136 Sunderland-Groves et al. Table
Page 148 and 149: 138 Sunderland-Groves et al. from m
Page 150 and 151: 140 Sunderland-Groves et al. Sander
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
Page 174 and 175:
No. of individuals (n = 1065) 1000
Page 176 and 177:
Gnetum spp. Piper guineensis Site T
Page 178 and 179:
Resource Impacts of seasonality Ava
Page 180 and 181:
Box. Large-scale exploitation of no
Page 182 and 183:
Sunderland, T. C. H. 2001. Cross Ri
Page 184 and 185:
174 Slayback 7 H S IH type of autom
Page 186 and 187:
176 Slayback (ridge or lowland). On
Page 188 and 189:
178 Slayback Table 2: Areas of outp
Page 190 and 191:
180 Takamanda: the Biodiversity of
Page 192:
182 Sunderland-Groves et al. Mone F
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?