habitat vs. niche
DESCRIPTION
“The niche of an organism depends not only on where it lives but also on what it does. It may be said that the habitat is the organism's ‘ address ’, and the niche is its ‘ profession ’, biologically speaking.” Odum - Fundamentals of Ecology. - PowerPoint PPT PresentationTRANSCRIPT
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“The niche of an organism depends not only on where it lives but also on what it does. It may be said that the habitat is the organism's ‘address’, and the niche is its ‘profession’, biologically speaking.”
Odum - Fundamentals of Ecology
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Habitat vs. NicheNiche - the role a species plays in a community (job)
-Ex: a honey bees niche (job) is to pollinate flowers to make honey
Habitat- the place in which an organism lives out its life (address)
-Ex: the honey lives in the bee hive, which is in the forest.
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Survival Relationships In Ecology - SYMBIOSIS
Studies have shown that most species survive because of the relationships they have with other species
The relationship in which there is a close association between organisms of different species is called symbiosis
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Symbiotic Relationships
Biotic (LIVING) factors in an ecosystem interact in 2 major ways1. Symbiotic Relationships2. Feeding Relationships
Symbiosis- two species living together
3 Types of symbiosis:
1. Mutualism
2. Commensalism
3. Parasitism
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Symbiotic RelationshipsMutualism- beneficial to both species (it is GOOD for both)
Ex. cleaning birds and cleaner shrimp
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Symbiotic RelationshipsMutualism- beneficial to both species
Ex. lichen
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Symbiotic RelationshipsCommensalism- one species benefits and the other is not harmed or helped
Ex. orchids on a tree
Epiphytes: A plant, such as a tropical orchid or a bromeliad, that grows on another plant upon which it depends for mechanical support but not for nutrients. Also called aerophyte, air plant.
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Symbiotic RelationshipsCommensalism- one species benefits and the other is neither harmed nor helped
Ex. polar bears and cyanobacteria
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Symbiotic RelationshipsParasitism- parasite-hostOne organism benefits and the other is harmed
The parasite attacks while the organism is still LIVINGEx. fleas,ticks,tapeworm
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What type of Symbiosis is pictured?
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What type of Symbiosis is pictured?
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What type of Symbiosis is pictured?
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What type of relationship is pictured?
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AutotrophsUse energy from the sun to make their food.
Also called ProducersExamples: Plants
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Autotrophs or Producers
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HeterotrophsOrganisms that do not make their own food
Also called a Consumer Consume other organisms in order to live
Ex. Rabbits, Deer, Lions, Humans
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Heterotrophs
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Feeding Relationships
Consumer- Organisms that eat (consume) other organisms for energy (animals)
4 types of heterotrophs/consumers:HerbivoresCarnivoresOmnivores
Decomposers
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Feeding Relationships
Consumers- HerbivoresEat only plants
What is the Niche of a Herbivore?
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Feeding Relationships
Consumers-Carnivores-Eat only meat
What is the Niche of a Carinvore?
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Feeding Relationships
Consumer- Omnivores -eat both plants and animals
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Feeding Relationships
Consumer- Decomposers
Eats dead and decaying matter. Returns matter to the soil.
What is the Niche of a Decomposer?
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Scavengers
Scavenger: Organism eats the remains of a dead animal after another has already killed it
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Predator - Prey
PREDATION (Predator – Prey): Organisms that hunt and kill another organism for food
As the PREY increase, so does the PREDATOR.
When the PREY decreases, so does the PREDATOR.
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How are PREDATION and PARASITISM Different?
Both relationships are GOOD for one organism and BAD for the other
BUT: Predation = the harmed organism is DEAD when it is harmed
Parasitism = the harmed organisms is ALIVE when it is harmed