Concepts in Natural Resources. Concepts we will discuss Concepts we will discuss Renewable Resource...
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Transcript of Concepts in Natural Resources. Concepts we will discuss Concepts we will discuss Renewable Resource...
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Concepts in Natural Resources
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Concepts in Natural Resources
Concepts we will discussConcepts we will discuss Renewable ResourceRenewable Resource Nonrenewable ResourceNonrenewable Resource EnvironmentEnvironment
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Concepts in Natural Resources
Concepts we will discuss (continued)Concepts we will discuss (continued) EcologyEcology EcosystemEcosystem BiomeBiome
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Concepts in Natural Resources
Concepts we will discuss (continued)Concepts we will discuss (continued) Preservation vs. ConservationPreservation vs. Conservation Carrying CapacityCarrying Capacity Food ChainsFood Chains
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Concepts in Natural Resources
Renewable ResourceRenewable Resource Resources that can be replaced by human Resources that can be replaced by human
effortsefforts Can be Renewable forever depending on Can be Renewable forever depending on
the management of the resourcethe management of the resource Example: Forests and Forest ProductsExample: Forests and Forest Products
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Concepts in Natural Resources
Non-Renewable ResourcesNon-Renewable Resources Limited resources that cannot be replaced Limited resources that cannot be replaced
once they are goneonce they are gone Careful use and extend the length of their Careful use and extend the length of their
availabilityavailability Example: Petroleum and Petroleum Example: Petroleum and Petroleum
productsproducts
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Concepts in Natural Resources
EnvironmentEnvironment All of the physical surroundings of a All of the physical surroundings of a
species species
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Concepts in Natural Resources
EcologyEcology Study of the complex relationships among Study of the complex relationships among
living things and their environmentliving things and their environment
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Concepts in Natural Resources
EcosystemEcosystem Any partially self-contained environmental Any partially self-contained environmental
and living thingand living thing Example: A lake, a large valley, or a forestExample: A lake, a large valley, or a forest
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Concepts in Natural Resources
BiomeBiome A major land area characterized by A major land area characterized by
dominant plant life formsdominant plant life forms Established by altitude and rainfallEstablished by altitude and rainfall
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Concepts in Natural ResourcesBiomes (continued)
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Concepts in Natural Resources PreservationPreservation An attempt to prevent An attempt to prevent
the use of a natural the use of a natural resourceresource
Aim is to “preserve” Aim is to “preserve” or keep it intact as it is or keep it intact as it is or wasor was
ConservationConservation An attempt to use a An attempt to use a
natural resource in a natural resource in a way to minimize waterway to minimize water
Aim is to maintain the Aim is to maintain the resource in as good of resource in as good of condition as possiblecondition as possible
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Concepts in Natural Resources
Carrying CapacityCarrying Capacity The ability of an ecosystem to provide food The ability of an ecosystem to provide food
and shelter for a given population.and shelter for a given population.
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Concepts in Natural Resources
Food WebFood Web A group of plants and/ or animals A group of plants and/ or animals related to each other by the fact that one related to each other by the fact that one
feeds or depends for food on the nextfeeds or depends for food on the next
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Concepts in Natural ResourcesFood Web (continued) Pyramidal in shapePyramidal in shape Many producersMany producers Fewer ConsumersFewer Consumers Fewer still predatorsFewer still predators
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Concepts of Natural ResourcesFood Web (continued)
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Concepts of Natural Resources
ProducersProducers• Also known Also known
as autotrophsas autotrophs• Make their Make their
own food own food
ConsumersConsumers• Also known Also known
as hetertrophsas hetertrophs• Organisms Organisms
that feed on that feed on other speciesother species
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Concepts of Natural Resources Food Chains (Continued)Food Chains (Continued)
CarnivoresCarnivores• First-order CarnivoresFirst-order Carnivores
–Carnivores that feed on Carnivores that feed on herbivoresherbivores
• Second-order CarnivoresSecond-order Carnivores–Carnivores that feed on first Carnivores that feed on first
order carnivoresorder carnivores
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Concepts in Natural Resources
Food Chains (continued)Food Chains (continued) OmnivoresOmnivores
““All eaters”All eaters”These critters are both herbivores and These critters are both herbivores and
carnivorescarnivores
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Concepts of Natural Resources
Food Chains (continued)Food Chains (continued) PredatorsPredators
Carnivores that feed on live animalsCarnivores that feed on live animalsExamples: OwlsExamples: Owls
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Concepts in Natural Resources
Food Chains (continued)Food Chains (continued) PreyPrey
Animals that are eaten by predatorsAnimals that are eaten by predatorsExamples: MiceExamples: Mice
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Concepts in Natural Resources
Food Chains (continued)Food Chains (continued) ScavengersScavengers
Critters that feed on dead organismsCritters that feed on dead organismsBoth plants and animalsBoth plants and animalsExamples: snails, crayfish, crowExamples: snails, crayfish, crow
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Concepts in Natural Resources
Food Chains (continued)Food Chains (continued) SaprophytesSaprophytes
Fungi that feed on dead organismsFungi that feed on dead organismsExamples: Fungi, bacteriaExamples: Fungi, bacteria
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Concepts in Natural Resources
Food Chains (continued)Food Chains (continued) DecomposerDecomposer
Break down and feed on non-living Break down and feed on non-living organic matterorganic matter
Examples: Yeasts, moldsExamples: Yeasts, molds