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Ecological Succession the predictable and orderly changes that occur over time in a community of plants and animals Ecological Succession Another phrase for predictable and orderly changes Ecological Succession Begins after a significant interruption takes place in a habitat Primary Succession Formed the beautiful forests of the Hawaiian Islands Primary Succession the series of changes occurring in a newly formed, barren habitat Substrate the base, usually rock or soil, in which an organism lives Pioneer Species the first species to populate or repopulate a barren or distrubed area Colonize to establish growth in an ecological community Ecology the scientific study of relationships between organisms and their environments Ecology A branch of biology Vegetation the plant life in an area Botanist A scientist who studies plant life Sere a stage in the series of communities formed during ecological succession 10/18/1867 Purchase date of Alaska from Russia Seward's Folly Purchase of Alaska because no one saw any worth of the purchase until Gold was discoverd Secondary Succession the series of changes occurring in an area where the existing ecosystem has been disturbed Softwood the wood from conifers or evergreen trees Hardwood The wood from broad-leaved, mostly deciduous trees Pines an example of softwood What does a forest fire promote? Ecosystem health, they clear out the thick underbrush, stimulate the regeneration of certain plants Topography The physical surface features of a place or region Dr Richard Oliver ranger Rick Mount St. Helens a volcano located in southwesterd Washington State Examples of pioneer species moss, lichen & weeds Lichen complex organisms that produce acids to help break down rock. Plants before animals The order of repopulation Examples of interruptions of the balance of an ecosystem hurricanes, floods, fires or tornadoes Examples of softwood conifers such as pine and spruce Examples of hardwood Oak and elm Uses for softwood paints and adhesive from the rosin, fuel, medicine, fabric softeners, cleaners The oil spill of the Exxon Valdez This event is considered the biggest enviromental disaster of in the United States history