Evolutionary ecology at its best. How to read the study guide. Questions are in (#) Answers from each person are in Letters exp A, B, C...

Monday, March 22, 2010

(3) What are the main elements of climate? How does climate and geography interact to produce abundance and distribution patterns of organisms in the Biosphere?

A.Climate is the long-term average pattern of weather and its main elements are solar radiation, air masses, pressure systems, ocean currents, and topography.
Organisms’ lives depend a lot on the living condition of their habitats. Climate and geography are main factors that determine these conditions – the amount of annual rainfall, the average temperature, the water current, the air current, etc.

B. Solar radiation, Air masses, Pressure systems, Ocean Currents, and Topography.

C. Climate is the long term average pattern of weather. Weather is a combination of atmospheric conditions including temperature, humidity, precipitation, wind and cloudiness to a specific place and time. Geography and climate interact to produce abundance and distribution patterns of organisms. Different organisms need different amounts of water to survive. If there is low amounts of precipitation in an area that has organisms that need lots of water the organism will not survive. Geography provides the space for organisms to grow. If there is a lot of water but only a narrow amount of space because of a geographic feature such as a mountain or canyon then not very many organisms can survive there.

D.Climate is the long-term average pattern of weather and may be local, regional, or global. Geographic variations in climate, primarily temperature and precipitation, govern the large-scale distribution of plants and therefore the nature of terrestrial ecosystems.
Light, heat, moisture, and air movement all vary greatly from one part of the landscape to another, influencing the transfer of heat energy and creating a wide range of localized climates. Climate determines the availability of heat and water on Earth’s surface and influences the amount of solar energy that plant can harness.

E.Elements of climate=long term avg pattern of weather and may be local, regional, or global. (weather=combination of temperature, humidity, precipitation, wind, cloudiness, and other atmos conditions)
Geographic variations in climate, primarily temp and precipitation, govern the large-scale distribution of plants and terrestrial ecosystem. Earth intercepts solar radiation and different depending on season. Air temp decreases with altitude. Moisture content dependent on temperature. Rain shadow effect for mountains (heavy vegetation vs arid desert like)

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