Plant Community Structure, Fire Disturbance, and Recovery in ...

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Delta Amacuro .................................................................................................................. Regional and Global Affinities ......................................................................................... CONCLUSION ....................................................................................................................... CHAPTER 3. THE MANGROVE PALM NYPA FRUTICANS WURMB.: A WIDESPREAD EXOTIC SPECIES IN NORTHWESTERN GUYANA INTRODUCTION ................................................................................................................... NYPA HISTORY AND RANGE .............................................................................................. NYPA FRUTICANS OUTSIDE OF ITS MODERN NATIVE RANGE .................................. DISPERSAL OF NYPA TO TRINIDAD ................................................................................. POSSIBLE SOURCES OF PRESENT NEOTROPICAL NYPA POPULATIONS ................ ECOLOGICAL CONSIDERATIONS .................................................................................... CONTROL OF NYPA .............................................................................................................. NEEDS FOR ADDITIONAL STUDY .................................................................................. CONCLUSIONS .................................................................................................................... CHAPTER 4. STRUCTURE OF BURNED AND UNBURNED AVICENNIA L. FOREST, WAINI PENINSULA,GUYANA INTRODUCTION ................................................................................................................... METHODS .............................................................................................................................. Study Site .......................................................................................................................... Plot Establishment ............................................................................................................ Measurements .................................................................................................................. Alness Village Plot ........................................................................................................... Dispersion Patterns of Trees ............................................................................................. Biomass ............................................................................................................................ Comparison with Other Plot Data ..................................................................................... RESULTS ................................................................................................................................ Tree Mapping and Inventory ............................................................................................ Dbh and Tree Height ......................................................................................................... Basal Area ......................................................................................................................... Dispersion ......................................................................................................................... Density and Population Turnover in the Avicennia Forest ................................................ Biomass ............................................................................................................................ Small Woody Plants .......................................................................................................... Herbaceous Plants ............................................................................................................ Well Levels ....................................................................................................................... DISCUSSION .......................................................................................................................... Guyana Plots ..................................................................................................................... Dispersion ......................................................................................................................... Biomass ........................................................................................................................... Comparisons with Worldwide Plot Basal Area Data ........................................................ Population Turnover in the Avicennia Forest .................................................................... Herbs and Seedlings ......................................................................................................... Role of Water Levels ......................................................................................................... CONCLUSION ....................................................................................................................... CHAPTER 5. DISPERSAL AND ESTABLISHMENT OF MANGROVE PROPAGULES FOLLOWING FIRES INTRODUCTION .................................................................................................................. Seed Dispersal .................................................................................................................. 45 45 46 49 49 50 51 52 54 55 55 56 59 60 60 61 62 63 63 64 64 64 64 64 67 67 68 68 68 69 72 73 73 74 75 75 76 76 77 78 81 81
Dispersal in Mangrove Swamps ....................................................................................... Dispersal in Disturbed Mangrove Swamps ...................................................................... METHODS .............................................................................................................................. Study Site .......................................................................................................................... Propagule Dispersal and Establishment ........................................................................... Propagule Plantings .......................................................................................................... RESULTS ................................................................................................................................ Propagule Dispersal and Establishment ........................................................................... Propagule Plantings .......................................................................................................... DISCUSSION .......................................................................................................................... Propagule Dispersal and Establishment ........................................................................... Propagule Plantings ......................................................................................................... REFERENCES .......................................................................................................................... APPENDIX 1: Mangrove Ecosystems and Fire in the Tropics .................................................. 112 APPENDIX 2: Plant Species Listed for the Waini Peninsula, with Synonymy ........................ 129 APPENDIX 3: Preliminary Species List of the Vascular Plants of the Northwest District of Guyana ..................................................................................... APPENDIX 4: Species Disparities Between the Northwest District, Guyana and Delta Amacuro, Venezuela .................................................................................... 155 82 83 84 84 85 85 86 86 87 93 93 97 99 136
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130 Ipomoea violacea L. Merremia ci
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138 Guatteria flexilis R.E. Fr. Gua
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142 Diospyros tetrandra Hiern Elaeo
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144 Aniba hostmanniana (Nees) Mez A
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148 Rhizophora racemosa G. Mey. Con
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150 Turneraceae Turnera scabra Mill
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158 Asplundia glandulosa (Gleason)
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160 Bellucia grossularioides (L.) T
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162 Psychotria wessels-boeri Steyer
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164 Celastraceae Elaeodendron xyloc
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