Ecology

Biodiversity

Biodiversity

Habitats

Alterations to Habitats

Cycling of Materials in Ecosystems

Make a list of anything you have used in the lastweek that had been previously recycled, or wasmade of recycled materials. After you have madeyour list, discuss what the item is recycled from, ifknown, and the advantages or disadvantages ofrecycling each item.

Ecology

Living things depend on nonliving things for life. At the organism level living things depend on natural resources, and at the molecular level, they depend on chemical cycles.

Glacier Bay: An Example of Succession

Primary succession will begin after the following:A) Glaciations (Continental glaciers & Alpine glaciers) -

Plants and other life colonize the bare rock.B) Volcanic Lava Flows - Ex.: Hawaii, Columbia

Basalts of ancient Oregon.C) Volcanic Explosions - Mt. St. Helens, Mt. Mazama

(Crater Lake)D) Faulting raising sea floor - All of the above examples provide pioneer plants with

bare rock or soil to begin succession with.

Causes of Succession

Glacier Bay: An example of Succession

Plant Succession

Water Cycle

Water, carbon, nitrogen, phosphorus, and other elements are re-cycled back and forth between organisms and their environments. Water, carbon, and nitrogen are necessary for life to exist.

Carbon Cycle Carbon is acquired by

plants (producers) by photosynthesis used by animals (consumers) for food and protein synthesis.

Chemical recycling occurs through respiration, the excretion of waste products and, of course, the death of organisms.

The Nitrogen Cycle

Ecology

All plant life are known as producers which means they capture the energy from the sunlight and convert it into chemical energy (carbohydrates)

Producers and Consumers

An ecosystem’s producers (plants and photosynthetic microorganisms) are primarily responsible for the productivity

Conditions that threaten the stability of producer and decomposer populations in an ecosystem jeopardize the availability of energy and the capability of matter to recycle in the rest of the biological community.

Decomposition

Fungi and microorganisms are primarily responsible for recycling of organic matter

Flow of Energy

Producers 1 consumers 2 consumers