EcosystemsEcosystemsMr. Clark

Bethpage High School

EcosystemsEcosystems

Basic Ecological principlesBasic Ecological principles

EcosystemsEcosystems

Matter cyclesMatter cycles

Ecosystem studiesEcosystem studies

Ecological OrganizationEcological Organization

OrganismsOrganisms

PopulationsPopulations

CommunitiesCommunities

EcosystemsEcosystems

BiosphereBiosphere

Earth’s SpheresEarth’s Spheres

AtmosphereTroposphereStratosphereMesosphereThermosphere

AtmosphereTroposphereStratosphereMesosphereThermosphere

Hydrosphere Hydrosphere

Lithosphere Lithosphere

Biosphere Biosphere

Biosphere

How is Life Sustained on Earth?

Energy flow Energy flow

Biogeochemical Cycles: recycling of matter

Biogeochemical Cycles: recycling of matter

Gravity Gravity

Flow of Energy to Earth

BiomesBiomes

Biomes Biomes

Role of climate

Role of climate

Aquatic life zones

Aquatic life zones

Factors affecting Ecosystems

Abiotic factorsAbiotic factors

Biotic factorsBiotic factors

Limiting factorsLimiting factors

Factors affecting Ecosystems

Range of tolerance Range of tolerance

Components of Ecosystems

Biotic FactorsAutotrophsHeterotrophsDecomposers

Biotic FactorsAutotrophsHeterotrophsDecomposers

Energy Flow Energy Flow

Material Cycles Material Cycles

Abiotic factors Abiotic factors

Biodiversity

Genetic biodiversity within a species Genetic biodiversity within a species

Species biodiversity or biodiversity Species biodiversity or biodiversity

Ecological biodiversity of ecosystems Ecological biodiversity of ecosystems

Functional biodiversity of biogeochemical cycles or energy flow

Functional biodiversity of biogeochemical cycles or energy flow

Energy Flow in EcosystemsEnergy Flow in Ecosystems

Trophic LevelsTrophic Levels

Food websFood webs

Food chainsFood chains

Food ChainsFood Chains

Food Webs A food web shows all the feeding

relationships in an ecosystem. Food webs are more accurate illustrations. Food chains are strands of food webs.

Trophic Levels

Producer trophic level Primary consumer (herbivore)

Producer trophic level Primary consumer (herbivore)

Secondary consumer (carnivore) Secondary consumer (carnivore)

Tertiary consumer Tertiary consumer

Omnivores Omnivores Detritivores and scavengers Detritivores and scavengers

Decomposers Decomposers

Ecological Pyramids Pyramid of

energy flow

Pyramid ofenergy flow

Ecologicalefficiency

Ecologicalefficiency

Pyramid ofbiomass

Pyramid ofbiomass

Pyramid ofnumbers

Pyramid ofnumbers

Primary ProductivityPrimary Productivity Gross primary productivity (GPP) Gross primary productivity (GPP)

Net primary productivity (NPP) Net primary productivity (NPP)

Soils

Origins Importance Maturity and Horizons Variations with Climate and Biomes Variations in Texture and Porosity

Origins Importance Maturity and Horizons Variations with Climate and Biomes Variations in Texture and Porosity

Soil Profiles in Different Biomes

Biogeochemical Cycles Matter Recycling in EcosystemsBiogeochemical Cycles Matter Recycling in Ecosystems

Hydrologic (Water) cycle Hydrologic (Water) cycle

Carbon cycle Carbon cycle

Phosphorus cycle Phosphorus cycle

Nitrogen cycle Nitrogen cycle

Sulfur cycle Sulfur cycle

Hydrologic (Water) Cycle

The Carbon Cycle (Marine)

The Carbon Cycle (Terrestrial)

The Nitrogen Cycle

The Phosphorus Cycle

The Sulfur Cycle

How Do Ecologists Learn About Ecosystems?How Do Ecologists Learn About Ecosystems?

Field research Field research

Remote sensing Remote sensing

Geographic information systems (GIS) Geographic information systems (GIS)

Laboratory research Laboratory research

Systems analysis Systems analysis

Geographic Information System (GIS)

Orlando Florida

Systems AnalysisComputer Modeling