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Earth's most complex land biome

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Presentation on theme: "Earth's most complex land biome"— Presentation transcript:

1 Earth's most complex land biome
Tropical Rainforest Location: Found near equator…little variation in temperatures. No distinct seasonal changes. Earth's most complex land biome

2 Tropical Rainforest Abiotic factors high biodiversity and biomass
both hot and moist; ideal for bacteria and other microorganisms; they quickly decompose matter on the forest floor allowing nutrients to be recycled. <1 cm of topsoil About 100 in/yr of rainfall

3 Tropical Rainforest Plant adaptations 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 Bangul Bamboo

4 Tropical Rainforest Animal Adaptations Silvery Gibbon
Many animals are specialists and require special habitat components to survive Camouflage is common Wagler’s pit viper Many symbiotic relationships Live in different levels of canopy Slender Loris

5 Temperate Deciduous Forests
Temperate Deciduous Forests Location: found in temperate zone (about 480 North lat) Much of the human population lives in this biome

6 Temperate Deciduous Forests Characterized by 4 seasons
Temperate Deciduous Forests Abiotic Factors Characterized by an abundance of deciduous (leaf bearing) trees Characterized by 4 seasons Soils: Deep soil layers, rich in nutrients Precipitation: 30–100 in/yr in all forms (snow, rain, hail, fog, etc.)

7 Temperate Deciduous forest Plant adaptations
Lady Fern Temperate Deciduous forest Plant adaptations More diversity in the deciduous forest vs. the coniferous forest due to increased sunlight. Trees adapt to varied climate by becoming dormant in winter White Birch Birchhttp:// Deciduous forests grow in layers More sunlight reaches the ground compared to a rainforest so you will find more ground dwelling plants. Geulder Rose

8 Temperate Deciduous Forest Animal Adaptations
Bald Eagle Temperate Deciduous Forest Animal Adaptations Lose Winter Coat Adapt to many seasons Eat from different layers of the forest Least Weasel Fat Dormouse

9 Desert Ecosystems Location: Depending on type of desert, you will find them in various locations.

10 Desert Abiotic factors
Less than10 in/yr of rain (Less than 25 cm) SOIL: ~Shallow, rocky or gravely ~Little to no topsoil due to high winds. ~Minerals not deep in soil. Temperature: Summer 38 Deg C (100 F) Winter: 7 Deg C (45 F) While there are many types of deserts, they all share one characteristic: They are the driest places on Earth!

11 Joshua Tree http://www.blueplanetbiomes.org/desert_plant_page.htm
Barrel Cactus Desert Plant Adaptations: Spines Succulents Thick, waxy cuticle Shallow, broad roots All adapt to having little water Joshua Tree Ocotollio

12 Desert Animal Adaptations:
Bob Cat Desert Animal Adaptations: Get water from food Thick outer coat Burrow during day Large ears Smaller animals = less surface area Armadillo Lizard Javelina

13 Temperature: Summer:12 D Deg. C(54F)
Tundra Temperature: Summer:12 D Deg. C(54F) Winter: -26 Deg. C (-15F) Location: Found north of the Arctic Circle

14 Tundra Abiotic Factors
Rainfall: Less than 25 inches per year Temp rarely higher than 100C Permafrost layer Short growing season

15 Tundra Plant Adaptations
Reindeer lichen Tundra Plant Adaptations Growing close to the ground Having shallow roots to absorb the limited water resources. Trees grow less than 1 m high! cottongrass

16 Coral Reefs Close to equator Consistent water temperature
Shallow water Low in Nutrients

17 Animal adaptations of the Coral Reef
Breeding area for many fish

18 Threats to the Coral Reefs
Temperature is important, too hot or too cold and the animals can’t live there to create limestone Human intrusion (scuba diving) is damaging if you touch/step on the reef Pollution is also a concern.

19 Oceans http://mbgnet.mobot.org/salt/sandy/

20 Covers nearly ¾ of the Earth’s surface.
Ocean Abiotic factors Covers nearly ¾ of the Earth’s surface. Open ocean is one of the least productive areas on earth, too little sunlight to support plant growth

21 Ocean Plant adaptations
Plants are micro and macroscopic Have floating plants (kelp shown here)

22 Ocean Animal Adaptations
Zooplankton—sea’s smallest herbivores Hammerhead Deep ocean animals feed on detritus—floating debris in the water column. Lion fish

23 Taiga aka Northern Coniferous Forest or Boreal Forest
Location: Found only in Northern Hemisphere

24 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 ecosystems_biomes/biomes_northern_forest.html

25 Taiga Plant Adaptations
Balsam Fir Fireweed 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

26 Animal Adaptations of the Taiga
Moose Animal Adaptations of the Taiga Adapt for cold winters Burrow, hibernate, warm coat, insulation, etc. Great Grey Owl

27 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

28 Tropical Savanna Abiotic Factors
Temperature: Dry Season- 34 Deg C (93 Degrees) Wet Season: 16 Deg. C (61Degrees) ~Rainy and dry season ~ in/yr precipitation ~Fire plays a large role in this ecosystem

29 Tropical Savanna Plant Adaptations
Whistling Thorn Tropical Savanna Plant Adaptations Umbrella Thorn Acacia Grows in Tufts Resistance to Drought Many plants have thorns and sharp leaves to protect against predation. Kangaroos Paws Baobab

30 Steppe (Temperate Grassland) Dry, cold, grasslands
Location: Found in Russia and the Ukraine Temperature: Summer: 30 Degrees C (86F) Winter: 0 Degrees C (32 F) Rainfall:150 cm(59 inches)

31 Steppe Abiotic Factors
Precipitation: Less than 50 inches per year (50-90 cm) Soil: Deep Dark, fertile upper layers. Nutrient rich. Mountains often play a role in climate characteristics

32 Plant adaptations of the Steppe
* Most abundant are plants called Bunch grasses, fine bladed grasses that grow in clumps to preserve water * Trees such as cottonwoods, oaks and willows grow in river valleys. Tumbleweed Sweet Vernal

33 Adaptations of Steppe Animals
Many migrate, hibernate or burrow during extremes in temperatures and precipitation. Types of animals: gazelles, zebras, jack rabbits, coyotes, badgers, skunks, blackbirds, Mongolian Gerbil Saiga Antelope Gazelle herd

34 Prairie and Steppe: Grassland areas 50-75 cm/yr
Prairie and Steppe: Grassland areas 50-75 cm/yr Characteristic high Winds

35 Sod-forming grasses that won’t dry out or blow away in wind.
Prairie Plant Adaptations Sod-forming grasses that won’t dry out or blow away in wind. Fleabane Buffalo Grass

36 Many adaptations to survive extremes
Prairie Animal Adaptations Many adaptations to survive extremes Bobcat Geoffrey’s cat Prairie dog

37 Grasslands http://www.blueplanetbiomes.org/grasslands.htm


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