Forest canopies

Science & technology   |   Biology   |   Presentation   |   11/18/2008   |   .doc   |   12 pages
Document abstract : « Conclusion. Forest canopies TABLE OF CONTENTS: Introduction ----- 2 Definition ...»

Synopsis abstract : «Introduction.. Definition.. Discovery and exploration.. The naturalist and explorer William Beebe.. The scope and extent of canopy studies.. Modern Canopy access systems.. Methods of access.. Climbing techniques and mechanical methods.. Towers and...»

Reproductive ecology of forest trees

Science & technology   |   Biology   |   Presentation   |   11/19/2008   |   .doc   |   8 pages
Document abstract : « Large bees appear to predominate in forest canopies while small bees tend to visit understory trees, though this pattern breaks down in more open dry forest ...»

Synopsis abstract : «Introduction.. General reproductive strategies.. Vegetative reproduction.. Sexual reproduction.. Pollination of angiosperms.. Pollination by vertebrates.. Pollination by invertebrates.. Wind pollination.. Breeding systems and incompatibility.. Seed...»

Sap-sucking insects in forests

Science & technology   |   Biology   |   Presentation   |   11/25/2008   |   .doc   |   5 pages
Document abstract : « Increasing the availability of energy in forest canopies in such areas results in a dramatic increase in the abundance of microorganisms (bacteria, yeasts, and ...»

Synopsis abstract : «Introduction.. Mode of feeding and nitrogen metabolism.. Regional distribution and abundance.. Ecology.. Direct effects of sapsucker infestation.. The presence of the wood ant.. Aphid-infested sycamore saplings.. The width of the annual rings of...»

Aquatic habitats in forest ecosystems

Political science   |   Ecology & environment   |   Presentation   |   11/21/2008   |   .doc   |   8 pages
Document abstract : « This effect is more pronounced in smaller rivers which may have completely closed forest canopies. Water temperatures are lower for the same reason. ...»

Synopsis abstract : «Introduction.. Forested w.etlands. Peat bog forests.. Distribution.. Physicochemical characteristics.. Aquatic biota.. Swamp forests.. Distribution.. Physicochemical characteristics.. Aquatic biota.. Floodplain (Alluvial) forests.. Mangrove...»

Soil erosion control

Political science   |   Ecology & environment   |   Presentation   |   11/28/2008   |   .doc   |   6 pages
Document abstract : « The opening or removal of forest canopies during harvesting or land clearing results in potentially large areas of bare soil being exposed to the erosional ...»

Synopsis abstract : «Introduction.. General principles of soil erosion.. Key factors in soil erosion control.. Soil erosion and forestry operations.. Runoff production and erosion control.. On-site soil erosion control.. Off-site soil erosion contr...»

Natural disturbances in forest environments

Political science   |   Ecology & environment   |   Presentation   |   11/21/2008   |   .doc   |   7 pages
Document abstract : « Therefore as the cohort of pioneers matures and dies their canopies begin to receive trees of these attain dominance in the gap, and the forest growth cycle is ...»

Synopsis abstract : «Introduction.. Small-scale disturbance: gap phase dynamics.. Changes in microclimate and resource availability following gap creation.. Forest regeneration in gaps.. The changes in microclimate and resource availability.. Photoblastic...»

Agroforestry

Science & technology   |   Biology   |   Presentation   |   11/19/2008   |   .doc   |   6 pages
Document abstract : « an important tool for ecosystem rehabilitation in areas where forest conversion to beneath mature stands of some tree crops with light canopies like coconut ...»

Synopsis abstract : «Introduction and definition.. Why agrofestry?. The significance of scale.. Agroforestry practices.. Trees and arable crops.. Trees, livestock and grazed pasture.. Trees and animals without pasture.. Plantation tree crop agroforestry and multistrata...»

Environmental impacts on forests

Political science   |   Ecology & environment   |   Presentation   |   11/21/2008   |   .doc   |   7 pages
Document abstract : « from mass wasting are typically 10 times lower in forest compared to intercepts rainfall, but there is a critical difference: tree canopies readily evaporate ...»

Synopsis abstract : «Introduction.. Effect on soil.. The sustainable productive potential.. The observed boost in agricultural production following a forest cover.. Effect on water.. The effect of trees. Transpiration.. The myth that forests act like a sponge.. The...»

Discovering Barbarian Europe

History & geography   |   Geography   |   Presentation   |   11/28/2008   |   .doc   |   7 pages
Document abstract : « leafy branches to domestic stock would have thinned out canopies, and the of the European ecosystems especially those of the mixed deciduous forest zone into a ...»

Synopsis abstract : «Introduction.. Stonehenge - the famous circle of large upright stones in southern England.. Arrival of the Romans in Britain.. Humans and environments.. Life after the ice age.. Early holocene warming.. The holocene optimum.. Population and...»

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