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Les biomes : les facteurs de distribution
Les biomes : les facteurs de distribution

... Saint-Laurent). In these areas, the mean annual ________________________ is between 8°C and 10°C, and precipitation is high. In Québec, these forests are composed of maple deciduous varieties, such as ________________________ , beech and birch, as well as south conifers. Farther ____________________ ...
roof of the forest. Here, where the sun hits, the trees spread out with
roof of the forest. Here, where the sun hits, the trees spread out with

... wolves here to keep the deer population from getting too large. As the summer ends, it begins to get cooler. There is a chill in the air. Squirrels gather nuts for the cold winter ahead. Some birds, like warblers, migrate to the south where they can find warmer temperatures and more food. Many tempe ...
Oak forest - North Carolina Wildlife Resources Commission
Oak forest - North Carolina Wildlife Resources Commission

... the Piedmont landscape, occurring on ridgetops, upper slopes, south‐facing slopes and other  dry to mesic upland areas with acidic soils.  They are dominated by a variety of oak and hickory  tree species, but pines may also be an important component of both communities.  Shrub  layers are variable i ...
- ERA - University of Alberta
- ERA - University of Alberta

... species will require areas of intact forest for their continued preservation. • Maintaining variation in forest canopy composition at the stand level will preserve the range of substrate types and growing conditions required by different bryophyte species. • Research is needed on the mechanisms and ...
Biomes Powerpoint - Fort Thomas Independent Schools
Biomes Powerpoint - Fort Thomas Independent Schools

... occupy approximately one-third of Earth’s land area account for over two-thirds of the leaf area of land plants contain about 70% of carbon present in living things are major casualties of deforestation, pollution, and industrial usage ...
LAnd biomes - Science main page
LAnd biomes - Science main page

... seasonal distribution of rainfall: moist conifer and evergreen broad-leaved forests: wet winters and dry summers (rainfall is concentrated in the winter months and winters are relatively mild) dry conifer forests: dominate higher elevation zones; low ...
Biomes ppt - Schwichtenberg
Biomes ppt - Schwichtenberg

... occupy approximately one-third of Earth’s land area account for over two-thirds of the leaf area of land plants contain about 70% of carbon present in living things are major casualties of deforestation, pollution, and industrial usage ...
Biome
Biome

... seasonal distribution of rainfall: moist conifer and evergreen broad-leaved forests: wet winters and dry summers (rainfall is concentrated in the winter months and winters are relatively mild) dry conifer forests: dominate higher elevation zones; low ...
Mountains, Rivers, Grass and Trees, All Attain Enlightenment Earth
Mountains, Rivers, Grass and Trees, All Attain Enlightenment Earth

... she  gave  me  a  book  entitled  “The  Hidden  Life  of  Trees,”  by  Peter  Wohlleben.   I  learned  from  reading  the  book  that  trees  support  and  help  each  other.  Trees  that  have   been  chopped  down  can  stay  al ...
What Is a Taiga?
What Is a Taiga?

... sometimes called a boreal forest. These forests are found in the northern Rocky Mountains and Alaska in the US and all across Canada, northern Europe, and northern Asia. Taigas are found south of tundra areas and north of temperate forests. They are also found in the high mountain regions of warmer ...
The forest biodiversity challenge
The forest biodiversity challenge

... impacts on land use continue to cause significant erosion of biodiversity. Reduction of forest cover has greater impact on levels of biodiversity than other threats. Reduction in forest density and forest fragmentation, including through logging, also have severe impacts and can lead to increasing r ...
Prehensile-tailed Porcupine
Prehensile-tailed Porcupine

... They have been observed displaying unusual courtship behavior, including rubbing noses and ‘dancing’ on their hind limbs. Males have also been observed urinating on females while courting! Habitat: Rainforests, forests Lifespan: Up to 17 years in ...
Study Guide Life Science Check
Study Guide Life Science Check

... • Ecosystem – areas of living and nonliving interdependent factors including the interaction of organisms • Biome – large areas with similar geography, climate, plants and animals Key Ideas: • Be able to state what an organism needs from its habitat (food, water, space and shelter) • Be able to give ...
Did you know that the forest that you are currently in is called a
Did you know that the forest that you are currently in is called a

... understory consists of tree saplings that have only slightly grown because of their lack of sunlight. As the deer population grows, the saplings are trampled and over-browsed, resulting in the formation of an open, parklike area with little vegetation on the lower levels of the forest. So instead of ...
Bottomland hardwoods description
Bottomland hardwoods description

... insects, crayfish, worms, and micro-organisms. Nutrients increase during these periods as floodwaters drop sediment and organic matter. When dry, the soil is able to release stored nutrients and take in oxygen. Soil within bottomland hardwoods varies from clay-rich organic mixtures in the panhandle ...
Rain Forest Biome
Rain Forest Biome

... • Savannahs closer to equator & receive more rain up to 120 cm. • Have scattered shrubs & small trees • Grasslands support the largest animals on Earth • Video • http://www.thewildclassroom.com/biomes/grassland s.html • http://www.thewildclassroom.com/biomes/tropicals avanna.html ...
Zonation and characteristics of the vegetation of Mt
Zonation and characteristics of the vegetation of Mt

... lower elevations. This has been distinguished on a Landsat TM satellite scene. There is a sharp edge between forest and cultivations in each slope of the massif (Figure 2). The Landsat MSS satellite scene from 1976 reveals that the upper montane forest was a continuous belt around Mt. Kenya. As the ...
raven – ch6 - WordPress.com
raven – ch6 - WordPress.com

... A. A biome is a large, relatively distinct terrestrial region with a similar climate, soil, plants, and animals i. It encompasses many interacting ecosystems ii. It is considered the next level of ecological organization above those of community, ecosystem, and landscape B. Tundra (arctic tundra): c ...
The role of forests and forestry in the prevention and rehabilitation of
The role of forests and forestry in the prevention and rehabilitation of

... geographic convergence or very steep slopes and those opened up and exposed to gullying usually have higher levels of landslide hazard. In cases of continuous heavy rainfall or earthquakes the increased stability that trees provide is more frequently negated. Activity within these high-risk zones sh ...
Forest Fires
Forest Fires

... Forest fires are classified as crown fires, surface fires and ground fires on the basis of their intensity. The occurrence and intensity of fire in a forest depends on the topography, weather (precipitation and humidity, temperature and winds) and the forest type. These factors are popularly known a ...
LIDAR REFERENCES Antonarakis A.L.S., Saatchi S.S., Chazdon
LIDAR REFERENCES Antonarakis A.L.S., Saatchi S.S., Chazdon

... Asner G.P., Kellner J.R., Kennedy-bowdoin T., Knapp D.E., Anderson C., & Martin R.E. (2013a) Forest Canopy Gap Distributions in the Southern Peruvian Amazon. PLoS ONE, 8, e60875. Asner G.P., Mascaro J., Anderson C., Knapp D.E., Martin R.E., Kennedy-bowdoin T., Breugel M. Van, Davies S., Hall J.S., M ...
WHERE ARE THE RAINFORESTS
WHERE ARE THE RAINFORESTS

... 1. Bark ...
AP Biology
AP Biology

... 7. Explain how mountains affect rainfall. What local mountains cause the lower desert (Palm Springs area) to remain dry? What mountains in Orange County block significant rainfall from the Temecula Valley? ...
Forest Fires 3 -4 - Indian Academy of Sciences
Forest Fires 3 -4 - Indian Academy of Sciences

... Forest fires are classified as crown fires, surface fires and ground fires on the basis of their intensity. The occurrence and intensity of fire in a forest depends on the topography, weather (precipitation and humidity, temperature and winds) and the forest type. These factors are popularly known a ...
Redwood Forest - Fort Hays State University
Redwood Forest - Fort Hays State University

... habitat for lichens and epiphytic vascular plants, such as ferns, shrubs, and even trees. This increase the structural diversity of the Coast Redwood canopy provides habitat for a variety of animals, including the Wandering Salamander (Aneides vagrans). About 10‒20% of Coast Redwood leaves are shed ...
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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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