Textbook Notes (380,719)
CA (168,184)
UTSC (19,294)
BIOA02H3 (153)
Chapter 52

Chapter 52 notes

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Department
Biological Sciences
Course Code
BIOA02H3
Professor
Kamini Persaud

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chapter 52:
52.1:
ecology : is the scientific study of the rich and varied interactions between organisms
and their environment
community: Any ecologically integrated group of species of microorganisms, plants,
and animals inhabiting a given area.
biosphere: All regions of Earth (terrestrial and aquatic) and Earths atmosphere in
which organisms can live.
environment: Whatever surrounds and interacts with a population, organism, or
cell. May be external or internal.
abiotic : nonliving
biotic : living
52.2:
climate: The average of the atmospheric conditions (temperature, precipitation, wind
direction and velocity) found in a region over time. (climate is long term
temperature, weather is short term temp.)
solar energy drives global climate :
intertropical convergence zone: The tropical region where the air rises most
strongly; moves north and south with the passage of the sun overhead.
when a region lies under the intertropical convergence zone it is in the middle of
the wet season
rain shadow: The relatively dry area on the leeward side of a mountain range.
windward side of moutain is wet, leeward side of mountain is dry, due to cloud
climbing up moutain getting cold, release water, going down to leeward side of
mountain, getting hot and absorbing moisture
oranisms must adapt to changes in their environment :
dispersal : Organisms that moved or are moved to a new place
migration: The regular, seasonal movements of animals.
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52.3:
biome: A major division of the ecological communities of Earth, characterized
primarily by distinctive vegetation. A given biogeographic region contains many
different biomes.
Species richness: the number of species present in its communities
tundra is found in the artic and at high elevations in high moutains
arctic tundra : permafrost (frozen ground) does not absord water, making it very
wet.
tropical alpine tundra : more plant growth forms as present in tropical alpine
tundra than in arctic tundra vegetation.
the boreal forest biome is found toward the equator from arctic tundra and at lower
elevations on temperate zone mountains
boreal forest winters are long and very cold
summers are short
temperate evergreen forests also grow along the western coast of continents at
middle to high latitudes in both hemispheres (same places as boreal forest biome)
winters are mild but very wet
summers are cool and dry
home to earth's tallest trees
temperature deciduous forest biome is found in eastern north america, eastern asia,
and europe.
temperatures fluctuate
precipitation is evenly distributed throughout the year
lose leaves during winter, but photosynthesize quick in the summer
the temperate grassland biome is found in many parts of the world
relatively dry for much of the year
hot summers
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Description
chapter 52: 52.1: ecology : is the scientific study of the rich and varied interactions between organisms and their environment community: Any ecologically integrated group of species of microorganisms, plants, and animals inhabiting a given area. biosphere: All regions of Earth (terrestrial and aquatic) and Earths atmosphere in which organisms can live. environment: Whatever surrounds and interacts with a population, organism, or cell. May be external or internal. abiotic : nonliving biotic : living 52.2: climate: The average of the atmospheric conditions (temperature, precipitation, wind direction and velocity) found in a region over time. (climate is long term temperature, weather is short term temp.) solar energy drives global climate : intertropical convergence zone: The tropical region where the air rises most strongly; moves north and south with the passage of the sun overhead. when a region lies under the intertropical convergence zone it is in the middle of the wet season rain shadow: The relatively dry area on the leeward side of a mountain range. windward side of moutain is wet, leeward side of mountain is dry, due to cloud climbing up moutain getting cold, release water, going down to leeward side of mountain, getting hot and absorbing moisture oranisms must adapt to changes in their environment : dispersal : Organisms that moved or are moved to a new place migration: The regular, seasonal movements of animals. www.notesolution.com
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