Freshwater Ecosystem By: Alicia C. and Luke

Examples: Ponds, lakes, inland seas, wetlands, marshes, swamps, bogs, fens, creeks, steams, and rivers. These places can be anywhere where there is a depression in the earth.

Climate factors Anywhere from -50F to 110F The vegetation is mangroves and pickle weed, water lilies, algae, duckweed, cattails, reeves, and certain mosses

The average rainfall is about 50in This is enough to support the fresh water ecosystem

Climate factors (cont) Animals amphibians, reptiles, birds, furbearers, and insects Amphibians: frogs and newts Reptiles: snakes and alligators Birds: bald eagle, craine, great blue heron Furbearers: bobcat, beaver, deer, racoon, Insects: drangon flies, Earth worm, mosquito, snails, spiders

Limiting factors Light oxygen temperature Salinity food space ph nutrients and nitrates

Net primary production For lakes and streams 250gC/m²/yr

location Anywhere at any latittude outside of the polar regions

Uses Drinking Energy and transportation Boating and fishing Fishermen and researchers Hydroelectric power Humans destroy habitat 40% of fish species live in fresh water This has declined by 20% in the last 20 years

Dam's block fish migration routes and destroy plants and animals Pollution from runoff of agriculture and urban areas Global warming produces devastating floods and droughts Invasion of exotic species harm native animals and plants