Chapter 6 - Part 3 Ecosystems of the world
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Chapter 6 - Part 3 Chapter 6 - Part 3 Ecosystems of the Ecosystems of the world world p. 101 - 109 p. 101 - 109
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Chapter 6 - Part 3 Ecosystems of the world. p. 101 - 109. 17. Define “climax vegetation” p. 102. The natural vegetation in the last possible stage of vegetation development. Climax vegetation is stable and in balance with the climatic conditions - PowerPoint PPT Presentation
Transcript of Chapter 6 - Part 3 Ecosystems of the world
Chapter 6 - Part 3 Chapter 6 - Part 3 Ecosystems of the Ecosystems of the worldworld
p. 101 - 109p. 101 - 109
17. 17. Define “climax Define “climax vegetation” p. 102vegetation” p. 102
The natural The natural vegetation in the last vegetation in the last possible stage of possible stage of vegetation vegetation development.development.
Climax vegetation is Climax vegetation is stable and in balance stable and in balance with the climatic with the climatic conditionsconditions
It should change very It should change very little if left little if left undisturbedundisturbed
18. 18. Describe “climax vegetation” in Describe “climax vegetation” in coniferous coniferous forest. P. 102forest. P. 102
Evergreen treesEvergreen trees Needle like Needle like
leavesleaves Thick barkThick bark Conical shapeConical shape Dense growing Dense growing
which blocks sun which blocks sun
Coniferous forests
19.19. Analyze world Analyze world ecosystem map.ecosystem map.
a.a. Boreal Forest & tundra Boreal Forest & tundra are wide spread in high are wide spread in high latitudeslatitudes
b.b. Tropical Rain Forests Tropical Rain Forests occur in low latitudesoccur in low latitudes
c.c. Tropical Rain forest is Tropical Rain forest is most predominant in most predominant in South America.South America.
d.d. South America, Africa, South America, Africa, Australia and Antarctica Australia and Antarctica do not have tundra.do not have tundra.
e.e. Boreal forest is our Boreal forest is our ecosystemecosystem
20.20.Ecosystems vs. climatic Ecosystems vs. climatic regions p.104regions p.104 • Ecosystems of the Ecosystems of the
world are largely world are largely defined by their climax defined by their climax vegetation. vegetation.
• Example: tropical rain Example: tropical rain forest, grasslands, forest, grasslands, boreal forests, cacti, boreal forests, cacti, etc.etc.
• Climax Vegetation is Climax Vegetation is determined by climate. determined by climate. Therefore, ecosystems Therefore, ecosystems parallel climate zonesparallel climate zones
Climate zones
Ecosystem zones
20.20.Continued Continued (Ecosystems vs. climatic (Ecosystems vs. climatic regions p.104)regions p.104)
Arid gives Desert
Semi-Arid gives Grassland
Tropical Wet gives Tropical Rain forest
Temperate cold winter gives Boreal Forest
Temp. mild winter gives Temp. deciduous Forest
Worksheet 6.2 reviews this well.
21. Altitudinal succession vs. latitudinal 21. Altitudinal succession vs. latitudinal succession p. 104succession p. 104
The changes in ecosystems that occur as The changes in ecosystems that occur as one moves from the equator to the poles is one moves from the equator to the poles is very similar to the changes in ecosystems very similar to the changes in ecosystems seen moving from the base of an tropical seen moving from the base of an tropical mountain to the summit. mountain to the summit.
22.22.Ecosystem climatic Ecosystem climatic conditions p.104conditions p.104
TundraTundra Polar – sub arctic Polar – sub arctic
climateclimate Short summersShort summers Avg. mo nthly temp. Avg. mo nthly temp.
always below 10always below 10ooCC Very cold long Very cold long
winterwinter Light precipitationLight precipitation
22.22.Continued Continued (Ecosystem climatic (Ecosystem climatic conditions p.104)conditions p.104)
Boreal ForestBoreal Forest Temperate cold Temperate cold
winter climatewinter climate Warm summersWarm summers Moderate Moderate
precipitationprecipitation
22.22.Continued Continued (Ecosystem climatic (Ecosystem climatic conditions p.104)conditions p.104)
Temperate Deciduous Temperate Deciduous ForestForest
Temperate Mild winter Temperate Mild winter climateclimate
Warm – hot summersWarm – hot summers Moderate - heavy Moderate - heavy
precipitationprecipitation
22.22.Continued Continued (Ecosystem climatic (Ecosystem climatic conditions p.104)conditions p.104)
Temperate Temperate GrasslandGrassland
Semi-arid climate or Semi-arid climate or temperate cold wintertemperate cold winter
Light precipitation, most Light precipitation, most of it occurs in summerof it occurs in summer
Warm to hot summerWarm to hot summer Cold wintersCold winters
22.22.Continued Continued (Ecosystem climatic (Ecosystem climatic conditions p.104)conditions p.104)
SavannaSavanna Tropical wet & Dry Tropical wet & Dry
to semi-arid to semi-arid climateclimate
High temperatures High temperatures most of the yearmost of the year
Light to Moderate Light to Moderate precipitation precipitation usually all in one usually all in one seasonseason
22.22.Continued Continued (Ecosystem climatic (Ecosystem climatic conditions p.104)conditions p.104)
DesertDesert Arid climateArid climate High High
temperatures temperatures year roundyear round
little precipitationlittle precipitation
22.22.Continued Continued (Ecosystem climatic (Ecosystem climatic conditions p.104)conditions p.104)
Tropical Rain Tropical Rain ForestForest
Tropical Wet climateTropical Wet climate High temperatures High temperatures
year roundyear round High precipitation High precipitation
year roundyear round
22.22.Continued Continued (Ecosystem climatic (Ecosystem climatic conditions p.104)conditions p.104)
MountainMountain Different Different
climates at climates at different different elevationselevations
High elevations High elevations often like tundraoften like tundra
Lab /Practice Lab /Practice questionsquestions Questions #23 24, 25 p. 105-106 Questions #23 24, 25 p. 105-106
make a nice practice or even a make a nice practice or even a lab!!lab!!
