Honors Biology Communities and Biomes Notes (Continued)
Limiting Factors

Any factor that ___________________ the _______________________,
________________________, or distribution of organisms is called a ________________ factor.

Includes ___________________, climate, _____________________, water,
___________________, fire, soil chemistry, and ______________, and other living things
Tundra

Average precipitation: __________________ cm per year

Temperature range: _______________________

Geographic location: South of the _____________ ice caps in the _______________ Hemisphere

Abiotic factors: soggy summers; _________________; cold and __________ much of the year
Boreal Forest

Average precipitation: _______________ cm per year

Temperature range: ______________________

Geographic location: northern part of North America, ______________, and _____________

Abiotic factors: summers are _______________ and moist; winters are long, cold, and _______
Temperate Forest

Average precipitation: ___________________ cm per year

Temperature range: _________________

Geographic location: south of the boreal forests in ___________________ North America,
eastern _____________, ________________________, and Europe

Abiotic factors: well-defined __________________; summers are hot, winters are cold
Grassland

Average precipitation: _______________cm per year

Temperature range: _____________________

Geographic location: North America, South America, Asia, Africa, and Australia

Abiotic factors: summers are ______; winters are ________; moderate rainfall; _______ possible
Desert

Average precipitation______________ cm per year

Temperature range: high: ________________; low: _________________

Geographic location: every ______________________ except Europe

Abiotic factors: varying temperatures; low ____________________
Savanna

Average precipitation: _______________ cm per year

Temperature range: ______________________

Geographic location: ______________, South America, and _______________________

Abiotic factors: summers are ______ and _____________; winters are ________ and ______
Tropical Rainforest

Average precipitation: ___________________ cm per year

Temperature range: ____________________

Geographic location: ____________ and ___________ America, southern ____________,
western Africa, and northeastern _______________________

Abiotic factors: ________________ all year; hot and wet