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

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74 h—2@y——A 2 IE2— y2@w—˜A H S IH u Figure 1. Odonata sampling locations in Takamanda Forest Reserve, Cameroon frequently have behaviour patterns which mean that they only visit water rarely. Feeding and mating often take place in the tree canopy, and females only descend for oviposition. Larvae are surprisingly easy to find in the small streams and rainforest pools which the rarest species occupy. The breeding of larvae to adulthood therefore provides us with an unequivocal determination and is often the only way to build up data for larval keys. We have already produced keys to African Anax spp. (Chelmick 1999) and to African Aeshna spp. (Chelmick 2001), and descriptions of larvae of three of the most interesting damselflies (Nubiolestes diotima, Stenocnemis pachystigma and Pentaphlebia stahli; Vick 1998). A provisional version of the larval key is presently being tested in the field (Chelmick in prep). Once keys are available it will be relatively easy for non-experts and Takamanda: the Biodiversity of an African Rainforest w— w— w—— Vick para-taxonomists to improve odonate site databases. Breeding also provides records of species which are never seen as adults. Another method which has been very successful is the use of emergence traps which are placed over trickles and seepages in the forest; adults are discovered with the larval shucks and this provides another method of associating the two stages. The larval work has been one of the most productive aspects of the Project and it is an excellent way of involving local people who enjoy the practical side of the work and the wonder of seeing such a beautiful creature emerge from a drab aquatic ‘grub’. The research conducted in Takamanda is a collaborative effort between CDP, the Smithsonian Institution and the World Wildlife Fund.
Odonate assessment Table 1. Collection locations within the Takamanda and Mone Forest Reserves and the Mbulu Forest, 1997-2001. (TFR = Takamanda Forest Reserve; MFR = Mone Forest Reserve: MF = Mbulu Forest AREA CODE / DESCRIPTION CO-ORDINATE / ALTITUDE 01 Akwa Village, MFR 9Ê29©E, 6Ê03©N, 98m 02 Ashunda Hill, MF 9Ê35©E, 6Ê10©N,
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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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128 Takamanda: the Biodiversity of
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132 Sunderland-Groves et al. proved
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140 Sunderland-Groves et al. Sander
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142 Mdaihli et al. Basin and is sep
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144 Table 1. Type and number of fis
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146 Migrating Labeo spp. make up 10
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148 Mdaihli et al. Mochokidae Barbu
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150 Monthly yield (t) 200 160 120 8
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152 Mdaihli et al. of Forests Aroun
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154 Mdaihli et al. Appendix 1 (cont
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156 Sunderland et al. Table 1. Majo
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158 Sunderland et al. resources and
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160 Sunderland et al. No. of indivi
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No. of individuals (n = 315) 200 15
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No. of individuals (n = 1065) 1000
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Gnetum spp. Piper guineensis Site T
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Resource Impacts of seasonality Ava
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Box. Large-scale exploitation of no
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Sunderland, T. C. H. 2001. Cross Ri
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174 Slayback 7 H S IH type of autom
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176 Slayback (ridge or lowland). On
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178 Slayback Table 2: Areas of outp
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180 Takamanda: the Biodiversity of
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182 Sunderland-Groves et al. Mone F
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Fisheries in the Southern Border Zone of Takamanda - Impact ...

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