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Biodiversity Monitoring & Management Procedures

Biodiversity Monitoring & Management Procedures. H.J. van Hensbergen, A. Danby, D. Pepler, T. Orr, P. de la Roux Wildhorus Limited. Scope. Botanical Survey pre-planting Habitat Quality Monitoring Birds Butterflies. Floristic Survey. Tree layer of Miombo well known and described.

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Biodiversity Monitoring & Management Procedures

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  1. Biodiversity Monitoring & Management Procedures H.J. van Hensbergen, A. Danby, D. Pepler, T. Orr, P. de la Roux Wildhorus Limited

  2. Scope • Botanical Survey pre-planting • Habitat Quality Monitoring • Birds • Butterflies

  3. Floristic Survey • Tree layer of Miombo well known and described. • Rare Species known and protected. • Field layer not known • Risk of unknown impacts of conversion due to site specificity of teak. Are teak sites special? • Community analysis of field layer vegetation using Braun-Blanquet Relevee and Twinspan. • Identify plant communities. • Indicator Species • Produce preliminary map. • Identify rare species • Produce species list.

  4. Communities identified. • 5 major communities exist. • Forest communities • A.1 Raphia farinifera swamp community • A.2 Micrococca scariosa evergreen and riverine forest community • A.3 Mariscus – Hyparrhenia rufa open Miombo community • A.4 Diospyros usambarensis dense Miombo community • Grassland community • B. Setaria pumilia grasslands with scattered trees

  5. Preliminary Vegetation Map of Nakafulu

  6. Conservation Issues • 215 plant species identified from Nakafulu block. • No rare or endangered species found • Raphia farinifera community is of conservation value. • Diagnostic species are • Raphia farinifera • Imperata cylindrica • Cyperus tenuispica • Christella dentata • Macuna pruriens var. pruriens • Gallium sp. • Jussiaea leptocarpa • Ficus sur • It is being used and should be protected. • Two areas earmarked for conversion to teak should be withdrawn since they include some high forest.

  7. Habitat Quality • Birds sampled • 20 minute walk through surveys. • Visual and sound identification. • Survey stratified to include • Heavily altered • Lightly altered • Pristine. • September & March • Butterflies • 20 minute walk through surveys • Butterflies identified visually. • Caught if necessary • Stratified as for birds • January

  8. Bird Species Richness & Counts

  9. Ordination of Communities

  10. Ordination March

  11. Birds as a monitoring tool. • Rainy season bird communities clearly distinct in Heavily altered habitat. • Late dry season, species richness and counts indicative of degraded habitats.

  12. Butterflies

  13. Monitoring recommendations • Annual sample counts of birds in September. • Biennial community analysis of birds. • Can be done with a reduced set of 33 more common species. • Biennial community analysis of butterflies. • Can be done with a reduced set of 26 more common species. • Results will indicate changes in quality of a series of fixed transects.

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