Beavers are powerful ecological engineers. When they dam flowing streams they can create ponds and wetlands. Select all of statements indicating the way that beavers change energy flow and element cycling by damming streams. CEMATE TAM Beavers have no effects on energy flow through the brown and green food web Beaver dams indirectly increase net primary productivity by creating wetlands and ponds Beavers indirectly reduce secondary productivity Beavers indirectly decrease primary productivity by turning streams into ponds or wetlands Beavers indirectly cause greater releases of carbon to the atmosphere by damning streams ✔ Beavers indirectly increase energy flow through the green and brown food wegs ✔Beavers indirectly increase net secondary productivity Beavers indirectly increase carbon storage in organic matter

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