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Biomes What Is A Biome? If an organism is the simplest level of ecosystems, what level would a biome be? Make a flow chart. Biomes.

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Presentation on theme: "Biomes What Is A Biome? If an organism is the simplest level of ecosystems, what level would a biome be? Make a flow chart. Biomes."— Presentation transcript:

1 Biomes What Is A Biome? If an organism is the simplest level of ecosystems, what level would a biome be? Make a flow chart. Biomes

2 Biome – A large region characterized by a specific type of climate as well as certain plant & animal communities Climate - The weather conditions of an area over a long period of time including temperature, precipitation, and humidity. Describe the climate for a… DesertTemperate Forest

3 Why Are There Different Biomes? Limiting Factor – An environmental factor that limits the growth, reproduction or distribution of a species The limiting factors in a biome are generally related to the temperature and available water. Biodiversity - Measures the variation within a species, or of different species within a community Compare the biodiversity and population density of a… Tundra Tropical Rain Forest

4 Where Are Biomes Found? Latitude – Measures the distance north or south of the equator in degrees 0o to 30o Latitude - Tropical Region 30o to 60o Latitude - Temperate Region Above 60o Latitude - Polar Region At what latitude would you expect to find a… Savanna GrasslandTaiga

5 Is There Snow At The Equator? Altitude – Measures the height above sea level At the base of a mountain, such as Mt. Kilimanjaro, there may be thick vegetation & high levels of biodiversity. Continuing up the mountain, the decrease in temperature and available water creates ecosystems that resemble different biomes. What type of biome would the top of Mount Kilimanjaro resemble?

6 Altitude & Latitude Where is the equator located in this graph? Where are the evergreen trees located in this graph? 29,000 ft 0 ft 0o90o

7 Identifying Terrestrial (Land) Biomes Complete this chart using the terms High, Average, Low and Seasonal. TemperaturePrecipitationBiodiversity Tropical Rain ForestHigh Temperate ForestSeasonalHigh TaigaLowAverage SavannaHighAverage GrasslandSeasonalAverage DesertHighLow TundraLow

8 Biome Pyramid Which layer(s) of the pyramid illustrate 0o, 30o, and 60o Latitude? In which corner of the pyramid would you find the highest amount of biodiversity?

9 Terrestrial Biomes Of The World Color Key Light Purple Yellow Light Green Brown Light Blue Dark Green Dark Blue Biome Temp. Forest Desert Rain Forest Grass/ Savanna TundraTaigaMountain

10 How many biomes are there? 8

11  Tropical Rainforest  Tropical Savanna  Desert  Chaparral  Grassland  Temperate Deciduous Forest  Temperate Boreal Forest  Tundra Although there is some disagreement among scientists on how to divide up the Earth’s biomes, most can agree on the following eight:

12 Tropical Rainforest  Typically found near the equator  Receives more than 200 cm of rain annually  Temperatures typically fall between 20oC and 25oC for the entire year  As many as 50% of all the world’s animal species may be found here

13 Tropical Savanna  Grasslands with a few scattered trees  Experience a wet and dry season  Hot temperatures  Annual rainfall is between 50 and 127 cm  More species of grazing mammals than any other biome

14 Desert  Typically found between 25o and 40o latitude  Receives less than 25 cm of rain each year  Temperatures typically range between 20oC and 25oC but some extreme deserts can reach temperatures higher than 38oC and lower than –15oC

15 Chaparral  Found between 32o and 40o latitude on the west coast of continents  Receives between 35 and 70 cm of rain, usually in the winter  Extremely resistant to drought and weather events

16 Grassland  Because of the dry climate, trees are found only near water sources such as streams  Usually receives between 50 and 90 cm of rainfall each year  Summer temperatures can reach up to 38oC, and winter temperatures can fall to –40oC

17 Temperate Deciduous Forest  Moderate climate  Most trees will lose their leaves in the winter  Temperatures range between – 30oC and 30oC  Averages from 75 to 150 cm of precipitation  Well developed understory

18 Temperate Boreal Forest  Also known as Taiga  Typically found between 45o and 60o North latitude  Cold climate with summer rains  Very few reptiles  Limited understory  Snow is primary form of precipitation (40 – 100 cm annually)

19 Tundra  Means treeless or marshy plain  Characterized by permafrost – permanently frozen soil starting as high as a few centimeters below the surface – which severely limits plant growth  Winter temperatures average – 34oC while summer temperatures usually average below 10oC  Low precipitation (15–25 cm per year) but ground is usually wet because of low evaporation

20 Biome Project You must make a project to present to the class about a specific biome. It must include:  4 animals and 4 plants per biome, endangered species, and the adaptations which allow these plants and animals to survive  Food web  Climate of your biome including the causes of why the climate is this way in your biome  Fun facts

21 Alina says that deserts are hot because there is no water and they are very dry. Darnell says deserts are dry because they are very hot. Who is right? Explain using evidence.

22 Biome News Story with Weather Report for your Biome. PSA about an Environmental Problem facing Biome with possible solution. Silly Sitcom Episode Involving your Biome. Must include info!


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