1 / 17

Exploring Terrestrial and Aquatic Biomes: Characteristics and Diversity

Learn about the major terrestrial and aquatic biomes, their abiotic and biotic components, from tundra to tropical rain forests. Discover how these ecosystems vary in climate, biodiversity, and adaptation. Engage with our Spirit Week schedule activities.

hawn
Download Presentation

Exploring Terrestrial and Aquatic Biomes: Characteristics and Diversity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Do Now 4/27 OBJECTIVE: Identify and describe the characteristics of major terrestrial and aquatic biomes TASK: Copy definition into notes: A biome is a group of ecosystems in the biosphere with similar abiotic and biotic components

  2. Our Spirit Week Schedule • Wednesday 4/27 – Biomes (R) • Thursday 4/28 – Ecology Review (R) • Friday 4/29 – Spirit Fair (BJ) • MONDAY 5/2 – ECOLOGY TEST (BJ)

  3. So how many biomes are there? • No fixed number • 5, 7, 9, or more… depends on how specific you are • We’ll look at 9….

  4. What to do? • Complete your chart as we discuss each biome.

  5. Terrestrial Biomes • Terrestrial biomes are land environments • They are largely defined by patterns of precipitation and temperature.

  6. Tundra • Tundra comes from the Finnish word tunturia, meaning treeless plain. • Extremely cold climate (covered by ice for > 6 months /yr) • Low biotic diversity • Permafrost • Short season of growth and reproduction • Energy and nutrients in the form of dead organic material • Large population oscillations

  7. Taiga • The average temperature is below freezing for six months out of the year • Drier than temperate forest • There are not a lot of species of plants in the taiga because of the harsh conditions. Many coniferous trees. Needle-shaped leaves conserve water • also known as the boreal forest. .

  8. Moderate temperature and rainfall • Diversity of plant and animal species, especially deciduous trees (that lose their leaves in the autumn) • Pronounced seasons • Eastern US & Central Europe

  9. Temperate Grassland • Extremely fertile soil • Dominated by grasses • Semi-arid (10 – 30 inches of rain / year) • “midwest”

  10. Savanna • Hotter & wetter than temperate grassland • warm temperature year round • Dry & Rainy “seasons” • Plants of the savannas are highly specialized to grow in this environment of long periods of drought. • Most of the animals on the savanna have long legs or wings to be able to go on long migrations • Huge areas of savanna are lost to the Sahara desert every year because of overgrazing and farming.

  11. Very Dry! (<10 in. / yr) • Usually hot, but defined by precipitation – Antarctica is a desert too! • Specialized plants adapted to low moisture

  12. Tropical Rain Forest • abundant precipitation ( > 100 in. / year) and year round warmth. • No seasons: each species has evolved its own flowering and fruiting seasons. • Canopy of tree cover • Most biodiverse biome • Many unique, specialized species

  13. Aquatic Biomes • Aquatic biomes are underwater, and there are only two major types: • Freshwater • Marine • Earth is a blue planet: • 70% of surface • Majority of organisms • Majority of photosynthesis • Abiogenesis / evolution

  14. Freshwater Ecosystems • Lakes, streams, rivers, marshes, and estuaries of all types. • Great variety, due to abiotic factors like: • Salt concentration • Light availability • Dissolved O2, CO2, and other nutrients. • Hypotonic environment.

  15. Bull Falls, Shenandoah

  16. Marine Ecosystems

  17. Biome Review • Tundra • Taiga • Temperate Deciduous Forest • Temperate Grassland • Desert • Savanna • Tropical Rain Forest • Others? (Chaparral) • Freshwater / Marine

More Related