Biome Classification and Adaptations, Slides of Biology

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World Biomes

Follow along with your note packet to

add/modify any notes you took as you read

the chapter.

http://www.cotf.edu/ete/modules/msese/earthsysflr/

Tropical

Rainforest

Location: Found near equator…little variation in temperatures. No distinct seasonal changes.

Earth's most complex land biome  high biodiversity and biomass  ideal for bacteria and other microorganisms; they quickly decompose matter on the forest floor allowing nutrients to be recycled

Bougainvillea

 Sunlight is a major limiting factor

 Plants grow in layers (canopy receives most light)

 Shallow, wide roots since soil is so thin and poor in nutrients

 Little sun reaches the floor

Tropical Rainforest

Plant adaptations

Bangul Bamboo

 Many symbiotic relationships

 Live in different levels of canopy

Wagler’s pit viper

Silvery Gibbon

Slender Loris http://www.blueplanetbiomes.org/rnfrst_animal_page.htm

Tropical Rainforest

Animal Adaptations

Many animals are specialists and require special habitat components to survive Camouflage is common

Temperate Deciduous Forests

Location:

 found in temperate zone

(about 48 0 North lat)

 Much of the human population lives in this biome

 Characterized by an abundance of deciduous (leaf bearing)

trees

http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/tbdf/tbdf.html

Characterized by 4 seasons (^)  Soils: Deep soil layers, rich in nutrients  Precipitation: 30–100 in/yr in all forms (snow, rain, hail, fog, etc.)

Temperate Deciduous Forests

Abiotic Factors

http://www.cotf.edu/ete/modules/msese/earthsysflr/taiga.html

 Lose Winter

Coat

 Adapt to many

seasons

 Eat from

different layers

of the forest

Bald Eagle

Fat Dormouse

Least Weasel

http://www.blueplanetbiomes.org/deciduous_animal_page.htm

Temperate Deciduous Forest

Animal Adaptations

Threats to Temperate Deciduous

Forests

http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/tbdf/tbdf.html

Many forests are cleared to provide housing for humans.

Careful use of the resource can provide a renewable system if we don’t take too much habitat away.

Taiga

Abiotic factors

 Winters are long and

cold

 Averages 100 in/yr

precipitation—mostly

snow

 Soil poor in nutrients

and very acidic

 Growing season is

very short http://www.uwsp.edu/geo/faculty/ritter/geog101/modules/

ecosystems_biomes/biomes_northern_forest.html

Balsam Fir

 Coniferous (needle-bearing) trees are abundant

 Roots long to anchor trees

 Needles long, thin and waxy

 Low sunlight and poor soil keeps plants from growing on forest floor http://www.inchinapinch.com/hab_pgs/terres/coniferous/plants.htm

Fireweed

Taiga Plant adaptations

Threats to the Taiga

Mining operations can irreparably damage this fragile ecosystem.

Pollution left behind can also put animals and plants at risk.

http://www.blueplanetbiomes.org/taiga.h Docsity.com

Savannas (Tropical Grasslands) Contain the greatest number of grazing animals on Earth.

Location: Found in the tropics…near equator Amount of precipitation supports tall grasses but only occasional trees. The word savanna stems from an Amerind term for plains http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/savanna/savanna.html

Whistling Thorn

Umbrella Thorn Acacia

Tropical Savanna Plant Adaptations  Grows in Tufts  Resistance to Drought  Many plants have thorns and sharp leaves to protect against predation. http://www.blueplanetbiomes.org/savanna_plant_page.htm

Kangaroos Paws Baobab

Adapt for short rainy

season—migrate as

necessary

Limited food leads to

vertical feeding

Reproduce during rainy

season—ensures more

young survive

http://www.blueplanetbiomes.org/savanna_animal_page.htm

Zebras

Chacma Baboon

Tropical Savanna Animal Adaptations