Ecological Succession

Master ecological succession! Understand primary, secondary, pioneer species & climax communities with this biology worksheet.

Ecological Succession Watch this video as a review and then answer the questions below. What type of succession is shown in the image above? Primary Succession Secondary Succession Neither is correct What type of succession is shown in the image above? Primary Succession Secondary Succession Neither is correct Matching Match the correct definition to the correct term. Ecological Succession The sequence of events within an ecosystem following a disturbance Primary Succession The rebuilding of an ecosystem when soil is not present at the start. Secondary Succession The rebuilding of an ecosystem with soil present at the start. Pioneer Species The first organisms to colonize a barren area. Climax Community The last stage of succession when an ecosystem is back at equilibrium. Primary vs. Secondary Sort the descriptions into Primary and Secondary Succession Primary Succession Glacier melts revealing bare rock Takes 1000s of years Soil must be created over time Lava creates new rock Pioneer species: Lichens Lichens break down rock into soil Secondary Succession Abandoned farm Flash flood sweeps through desert Pioneer species: Grasses Soil is already present Takes 100s of years Fire sweeps through forest Pond drying up