18 terms

Ecology - Biomes

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biome
a group of ecosystems with similar climates and organisms
climate
the average annual conditions of temperature, precipitation, winds, and clouds in an area
desert
a dry region that on average receives less than 25 centimeters of precipitation per year (some of the driest deserts may not receive any precipitation in a year)
rainforest
are forests in which large amounts of rain fall year-round (a forest that receives at least 2 meters of rain per year, mostly occurring in the tropical wet climate zone)
canopy
a leafy roof formed by tall trees in a rainforest (up to 50 meters tall)
understory
a layer of shorter trees and vines that grows in the shade of a forest canopy
grassland
An area that is populated by mostly grasses and other nonwoody plants that gets 25-75 centimeters of rain per year (fires and droughts are common in this biome), also called a prairie.
savanna
a grassland located close to the equator that may include shrubs and small trees and receives as much as 120 centimeters of rain per year
deciduous tree
a tree that sheds its leaves during a particular season and grows new ones each year (examples: oaks & maples)
boreal forest
dense forest of evergreens located in the upper regions of the Northern Hemisphere (also known as Taiga or Coniferous Forest)
coniferous tree
a tree that produces its seeds in cones and that has needle-shaped leaves coated in a waxy substance to reduce water loss (
tundra
an extremely cold, dry biome climate region characterized by short, cool summers and bitterly cold winters
permafrost
permanently frozen soil found in the tundra biome climate region
freshwater
includes lakes, streams, and rivers
estuary
where freshwater meets the ocean
wetlands
consists of marshes and swamps, water saturates soil
chaparral
temperate shrublands, frequent fires, found in California
marine
ecosystems in salt water, oceans and seas, has a photic and aphotic zone
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