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Tropical%20Rainforest[1]
Tropical%20Rainforest[1]

... trees. Because they are so important to the animals of the tropical rainforest figs are considered a “keystone” species. There is a constant supply of fruit for the animals because different types of figs give fruit at various times of the year. In some areas up to 70% of the animals us figs for the ...
northern goshawk draft fullsize
northern goshawk draft fullsize

... preference to nest in remote forested regions and areas with extensively forested canopy. Breeding territories typically are widely dispersed. Within the South Coast area two subspecies of the northern goshawk occur, A. g. atricapillus and A. g. laingi. The laingi sub-species, known as the “Queen Ch ...
BIOME PROJECT Temperate Deciduous Forest
BIOME PROJECT Temperate Deciduous Forest

... found in the eastern United States, Canada, southern South America, Europe, China, Japan, North Korea and parts of Russia. A temperate deciduous forest consists of trees that lose their leaves every year. Some of these trees include oak, maple, beech, and elm. The temperate deciduous biome can be fo ...
Terrestrial Biomes
Terrestrial Biomes

... and terrestrial biomes • Human activities affect the global water cycle. • The destruction of tropical rain forests reduces the amount of water vapor in the air. • Pumping large amounts of groundwater to the surface for irrigation can increase the rate of evaporation over land, resulting in higher h ...
Tundra
Tundra

... • The small surface area of their needle-shaped leaves reduces water loss • A thick, waxy cuticle protects the leaf stomata from the drying winds and prevents water loss • Dark-colored leaves throughout the year, the evergreen trees are ready to photosynthesize as soon as temperatures rise above 6° ...
Tundra
Tundra

... • The small surface area of their needle-shaped leaves reduces water loss • A thick, waxy cuticle protects the leaf stomata from the drying winds and prevents water loss • Dark-colored leaves throughout the year, the evergreen trees are ready to photosynthesize as soon as temperatures rise above 6° ...
The forest surrounding Lake Mahināpua is home to an array of forest
The forest surrounding Lake Mahināpua is home to an array of forest

... lake and creeks, while rimu tower above the forest canopy. Rimu are easily recognised by their tall trunks and wide reaching branches, with weeping branchlets and needle-like leaves. These trees can grow to more than 35 metres in height, and generally live for 600 – 800 years, with older specimens u ...
Succession and Microclimate Name Honors Ecology Forms IV
Succession and Microclimate Name Honors Ecology Forms IV

... the availability of resources, their tolerances for excesses or shortages of resources, and interactions with other organisms that have a positive, negative, or neutral effect on population size. Plants are influenced by a number of factors such as the availability of light, water, and nutrients. In ...
Topic 4: Distribution and Abundance
Topic 4: Distribution and Abundance

... Plants of the Forest Tropical Rainforests  Exist in the warmer areas of extreme rainfall. They contain few if any eucalypts. There is no understory because the light intensity beneath the dense tree canopy is very poor. The diversity of trees can be huge. 1 hectare can contain more than 200 ...
What are the effects of fire on the environment (3)
What are the effects of fire on the environment (3)

... What are the animal species in a tropical rain forest? What human factors have destroyed the tropical rain forest? What is the connection between elevation and latitude? How do elevations and latitudes affect the types of organisms found in each place? How are aquatic ecosystems divided? Salinity Di ...
Smithsonian Scientists Find That Vines Choke a Forest`s Ability to
Smithsonian Scientists Find That Vines Choke a Forest`s Ability to

... Tropical forests are a sometimes-underappreciated asset in the battle against climate change. They cover seven percent of land surface yet hold more than 30 percent of Earth’s terrestrial carbon. As abandoned agricultural land in the tropics is taken over by forests, scientists expect these new fore ...
Grassland Temperate Forest Rain Forest
Grassland Temperate Forest Rain Forest

... – Herding to preserve body heat ...
summary thesis wassie
summary thesis wassie

... composition was found with minimum altitude difference between forests. Geographical distance had only a weak effect on similarity. Therefore their vast altitudinal distribution gives these forests the opportunity to hold most of the biodiversity resources of the area. This can be confirmed by the n ...
The relevance of resilience
The relevance of resilience

... In the absence of biodiversity there would be no ecosystems and no functioning. There is evidence that complex forest ecosystems are more productive than less diverse ones (under the same conditions), and more productive ecosystems are more resilient than less productive ones. Forests comprised of f ...
Tropical Rainforests of Madagascar Madagascar is home to some of
Tropical Rainforests of Madagascar Madagascar is home to some of

... Tropical Rainforests of Madagascar Madagascar is home to some of the richest rainforests on Earth. Well over half of Madagascar's species are found in these forests, which lie on the east coast of the island. A rainforest is a tropical biome characterized by regular rainfall (exceeding 100 inches -- ...
PART V - Classroom Websites
PART V - Classroom Websites

... debt to act as custodians of protected forest reserves in order for debt to be forgiven. 4. We must develop an international system for evaluating and certifying that tropical timber has been produced by sustainable methods. 5. Loggers can harvest trees more gently: canopy vines being cut saves dama ...
leslie weldon - The Trail Posse
leslie weldon - The Trail Posse

... In November 2011, Leslie Weldon was named Deputy Chief for National Forest System with the USDA Forest Service. In this role, Leslie is the lead executive responsible for policy, oversight and direction for the natural resource programs for managing the 193 million acres of National Forests and Gras ...
Interactive PowerPoint
Interactive PowerPoint

... The tropical rainforest receives an average of 50 to 260 inches of rain per year. There are four layers of trees in the rain forest: the emergent, the upper canopy, the lower canopy, and the forest floor. The tropical rain forest produces 40% of Earth’s oxygen. The tropical rainforest is generally l ...
Birds in Mixed-conifer Hardwood Forests
Birds in Mixed-conifer Hardwood Forests

... Without fire, high volume conifer stands become more abundant. A variety of restoration techniques are being designed to simulate the effects of mixed-severity fire and increase lower volume mixed-conifer hardwood conditions across the landscape. These changes in vegetation can cause bird species co ...
4.2 Biomes (pp. 91-108)
4.2 Biomes (pp. 91-108)

... 75 cm of precipitation annually • soils have considerable humus content • usually experience a dry season where insufficient water exists to support forests –example organisms - more than 100 different species per acre, large herds of grazing animals, bison, buffalo, wolves, coyotes, prairie dogs, f ...
Science - Biomes
Science - Biomes

... 75 cm of precipitation annually • soils have considerable humus content • usually experience a dry season where insufficient water exists to support forests –example organisms - more than 100 different species per acre, large herds of grazing animals, bison, buffalo, wolves, coyotes, prairie dogs, f ...
Tropical rainforest. The tropical rain forest is a forest of tall trees in a
Tropical rainforest. The tropical rain forest is a forest of tall trees in a

... obtained from weathered rocks. The rainforest has a very short nutrient cycle. Nutrients generally stay in an ecosystem by being recycled and in a rainforest are mainly found in the living plants and the layers of decomposing leaf litter. Various species of decomposers like insects, bacteria, and f ...
Pine Flatwoods Study Guide for Juniors
Pine Flatwoods Study Guide for Juniors

... organism’s natural habitat is usually found within its ecological range. Predators - Organisms that survive by feeding upon, or preying, on other organisms. Shelter - A place that protects organisms from heat, rain, wind, or predators. Staple food - The basic food that an animal needs to survive. Ri ...
Landscape analysis of ecosystem diversity
Landscape analysis of ecosystem diversity

... • Add a road bisecting the landscape (government initiative). • The road width is negligible but it provides immediate access to the grid squares traversed and those immediately adjacent to them (150m back from the road). These are converted to agriculture. • Convert adjacent forests to edge habitat ...
Exam practice answers 3
Exam practice answers 3

... canopy (20–30 metres). There, leaves, fruits and seeds support a diverse array of animals, including insects, reptiles, birds and mammals. The tallest trees (50 metres or more in height) rise above the canopy to form a discontinuous emergent layer. Forest trees are typically umbrella-shaped to captu ...
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Forest



A forest is a large area of land covered with trees or other woody vegetation. Hundreds of more precise definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing and ecological function. According to the widely-used United Nations Food and Agriculture Organization definition, forests covered an area of four billion hectares (15 million square miles) or approximately 30 percent of the world's land area in 2006.Forests are the dominant terrestrial ecosystem of Earth, and are distributed across the globe. Forests account for 75% of the gross primary productivity of the Earth's biosphere, and contain 80% of the Earth's plant biomass.Forests at different latitudes form distinctly different ecozones: boreal forests near the poles tend to consist of evergreens, while tropical forests near the equator tend to be distinct from the temperate forests at mid-latitude. The amount of precipitation and the elevation of the forest also affects forest composition.Human society and forests influence each other in both positive and negative ways. Forests provide ecosystem services to humans and serve as tourist attractions. Forests can also impose costs, affect people's health, and interfere with tourist enjoyment. Human activities, including harvesting forest resources, can negatively affect forest ecosystems.
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