Learning Targets - Bunse Biology
Transcript of Learning Targets - Bunse Biology
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Learning Targets
Discuss the impact of biotic and abiotic factors on their environment and the significant ecological levels of organization.
Explain the difference between an organism’s habitat and niche and how these are determined by the characteristics of an ecosystem.
Describe how species interact with one another in biological communities, such as competition, predation, and symbiotic relationships.
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Introduction to
Ecology
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What is Ecology?
Ecology- the study of interactions
between:
organisms and organisms
organisms and their environment
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Where do we fit in?
(What is our environment?)
The Biosphere: Water, Land, Air,
and Rock!
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Factors that effect us:
1. Abiotic Factors
Wind/Air currentsMoisture
Soil
Light
Temperature
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A- stands for non
Bio- stands for living
Abiotic Factors- nonliving factors
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2. Biotic Factors:
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Biotic- Living factors
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What is the organization of Ecological
Study?
Population
Community
Ecosystem
Biosphere
Organism
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Levels of Organization
Individual- one
organism (living)
Ex. a moose
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Levels of Organization
Population-groups of individuals that belong to the species and live in the same area. (living-living same species)
Ex. many moose
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Levels of Organization
Community- groups of different populations (more than one population or different groups of species)
Ex. many groups of moose, beavers, trees, grass (all living)
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Levels of Organization
Ecosystem- all organisms in a particular area along with the nonliving. (living and nonliving)
Ex. many groups of moose, beavers, trees, grass, rocks, water, mountains
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Levels of Organization Biome- group of
ecosystems that have the same climate and similar dominant communities
Biomes: tropical rain forest, tropical dry forest, tropical savannah, temperate grassland, desert, temperate woodland and shrubland, temperate forest, northwestern coniferous forest, boreal forest (taiga), tundra, mountains and ice caps
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Levels of Organization
Biosphere- all of
the planet where
life exists, includes
land, water, and
air
Life extends 8 km
up and 11 km
below the surface
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IN AN ECOSYSTEM:
Organisms live in a Habitat
Organisms fit into a Niche of the environment
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Habitat vs. Niche Habitat- an area where an organism lives
Niche- an organisms role in its environment The Long Version full range of physical and
biological conditions in which an organism lives and the way in which the organism uses those conditions. Includes where in the food chain it is, where an organism feeds
Habitat is like an address in an ecosystem and a niche is like an occupation in an ecosystem.
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Community Interactions
when organisms live together in an
ecological community they interact
constantly.
Three types of interactions
Competition
Predation
Symbiosis
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Competition- competing for resources
occurs due to a limited number of resources
Resource- any necessity of life. water, nutrients, light, food.
Competitive exclusion principle- no two species can occupy the same niche in the same habitat at the same time
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PredationPredation- when
an organism captures and feeds on another organism.
Predator- hunter
Prey- hunted
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Symbiosis
Symbiosis- any relationship where two
species live closely together. (3 types)
Mutualism
Commensalism
Parasitism
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Symbiosis
Mutualism- both
species benefit
from a
relationship.
Lichens (fungus
and Algae)
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Symbiosis Commensalism – One
member of a symbiotic relationship benefits and the other is neither helped or harmed
Ex. Holes used by bluebirds in a tree were chiseled out by woodpeckers after it has been abandoned .
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Symbiosis
Parasitism- One creature benefits and one creature is harmed
Ex tapeworm. Feeds in a humans intestines absorbing his/her nutrients.
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Relationships: Symbiosis = Living Together
a) commensalism
b) mutualism
c) parasitism
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Ecological Equivalents
Unrelated organisms that occupy similar
habitats and resemble each other.