Terrestrial (Land) Biomes - QUEENBEGUMSCIENCE · PDF file Terrestrial (Land) Biomes. Biome...

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Transcript of Terrestrial (Land) Biomes - QUEENBEGUMSCIENCE · PDF file Terrestrial (Land) Biomes. Biome...

  • Terrestrial (Land) Biomes

  • Biome

    • An area of land like an

    ecosystem, but on a bigger

    scale…has a spec. climate.

    • Animals/plants have adapted

    to living in these envs.

  • Has permafrost: frozen layer of soil; H2O does not penetrate 

    no trees

  • • 10% of Earth’s land

    • Treeless, lack of sun & water, freezing!

    • Winters: long and dark

    • Summers: 84 days of constant light, tilt!

    • Has permafrost: frozen layer of soil; H2O does not penetrate

    Tundra Summer

    Tundra Winter

    Tundra

  • Tundra Climate

  • T u

    n d

    ra

  • T u

    n d

    ra

  • Tundra

  • WE Tundra

  • P ru

    d h

    o e

    B a

    y , A

    la s

    k a

    !

  • Taiga

    • 20% of Earth

    • Climate: Cooler with elevation

    • Adaptations: hibernate, compact bodies, thick fur, feathers

  • Conifers =

    Evergreen

  • Timber/Tree

    Line

  • Rainshadow Effect

    Windward

    Leeward

  • Taiga

  • Taiga

  • Taiga

  • Human Uses: Timber!

  • Human Uses: Hydroelectricity

  • TEMPERATE

    DECIDUOUS FORESTS

  • Temperate Deciduous Forest

    • Snow in winter,

    hot summers

    • High humidity

    • 4 seasons

    • East Coast US

    Deciduous= TREES DROPS

    LEAVES!! Why???

  • Temperate Deciduous Forest

  • TDF: Spotted Salamander

  • TDF: Bull Elk

  • Human

    Uses:

    Logging

    (99%

    previously

    cut)

  • Human

    Uses:

    Mining

  • GRASSLANDS

    AND

    SAVANNAS

  • Location

    • Grasslands: Mid-latitudes

    • Savannas: Near equator

  • Grasslands

    • Flat/rolling land

    • Richest soil

    • No trees, many grazers

    • Humans: agriculture

  • T h

    e O

    th e r

    W h

    it e

    M e

    a t!

  • Human Uses: Agriculture

     Overused!

    Pesticides!

    Fertilizers!

    Animal

    Feces!

    Global

    Warming!

    Energy

    Waste!

  • Soil Compaction

  • Tropical Rain Forest

  • Tropical Rain Forest

    • Evergreen, broad leaf

    • > 92 inches rainfall/yr

    • Along Equator

    • Top: Canopy (Most light)

  • Look

    How

    Huge!

    Why?

    Peruvian Amazon

  • Human Uses: Drugs!

    • Contains 25% of prescription drug

    ingredients

    • Rosy Periwinkle: 99% success in

    remission of childhood leukemia

  • • Leads to an increase in greenhouse

    Gases (CO2)

    Used for Cattle Grazing, Agriculture, and

    Timber

    Human Impacts: Deforestation

  • Technique: Slash and Burn

    Returns Nutrients temporarily back to

    soil  plant!

  • Chaparral/

    Mediterranean

  • Chaparral

    • 30 - 35 N and S,

    along coasts

    • Hot, dry summers

    and mild, wet

    winters

    • Fire-dependent:

    plants require

    fire to germinate

    (sprout)

  • W e s te

    rn F

    e n

    c e

    L iz

    a rd

  • Manzanita

  • Human Uses: Urbanization

    Loss of Habitat

    for Orgs.

    Intro of Non-

    Natives

    Air Pollution

    Water Pollution

    Increase in

    Disease

  • Deserts

  • Deserts

    • Areas where evaporation > rainfall (12 in.)

    • Drought-adapted plants

    • Low Diversity

    • Found on backs of mtns (rainshadow)

  • D e

    s e

    rts :

    M e e rk

    a ts

  • Human

    Uses:

    Mining