2. Biomes
• Regions of the world with similar physical
environments
• Named for most conspicuous types of
vegetation
• Climate factors
Rainfall (precipitation)
Temperature
Altitude
Latitude
• Boundaries are indistinct
4. Tropical Rain Forests
• Equatorial lowlands
• Constant temperature and abundant
rainfall all year long
• Many arboreal animals
• Few terrestrial animals
5.
6. Tropical and Subtropical
Grassland
• Warm temperatures throughout the
year
• Well defined dry season and rainy
season
• Large herbivores
• High grasses
• Scattered trees and shrubs
7.
8. Temperate Grassland
• Hot, humid summer and cold winter
• Precipitation as winter snow and heavy
spring and summer rain
• Short and tall grasses; trees found
only near streams
• Wide variety of animal life
– Large herbivores
– Smaller animals build burrows
9.
10. Deserts
• Identified by lack of precipitation
• Deserts can be cold or hot
– Antarctica is a cold desert
• Nocturnal animal life in hot deserts
• Plants are well adapted to short water
supply
11.
12. Temperate Deciduous Forests
• Deciduous forests of mid-latitude
regions
• Cold winters and hot summers
• Abundant rain and snowfall
• Wide variety of animal life
13.
14. Temperate Rain Forests
• Cold winters and hot summers
• Abundant rain and snowfall
• Conifers (redwood, firs, pines, spruce)
retain their needles.
– Needles conserve water in dry summer and
shed snow in cold winter
• Wide variety of animal life
15.
16. Taiga (Boreal Forest)
• Coniferous (Evergreen) Forests
• Found at high elevations and/or far
northern latitudes
• Snow accounts for most of the
precipitation
• Animals are adapted to long, cold
winters
17.
18. Tundra
• Areas with continuously frozen ground
(permafrost)
• Near polar regions
• Small plants limited by frozen soil and
prolonged dark season
• Animals adapted to extreme cold; birds
often migrate