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Stream Ecology


pH 1-6


pH 8-14

stream ecology

study of living things in the stream habitat

stream pH

pH of 6-8

acid rain

air polluted with nitrogen and sulfur make the rain acidic

bio monitoring

use a biotic index to count animals in each taxa

dissolved oxygen

oxygen dissolved in stream water

riparian zone

amount of vegetation on each side of the stream

abiotic factors
(pH, dissolved oxygen, temp, pollutants)

non living factors

biotic factors

living factors


make their own food
( plants)


consume plants or animals for food


recycle dead things in nature
( fungi, bacteria, mold, mildew)

invasive species

non-native plants or animals that disrupt the habitat they invade

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