4-6 Species Role in Ecosystems
Concept to Understand• Each species plays a specificecological role called its niche.
Ecological Niche• Every species occupy unique niches and play specificroles in an ecosystem
Ecological Niche• Generalist species – can live many different places,eat many things, tolerate wide variety ofenvironment...
Cockroach Information• Existed for 350 million years – 3,500 known species• Highly adapted, rapidly producing generalists▫...
Ecological Niche• Specialist species – can only survive in very specifichabitat▫ Examples: most salamanders, giant pandas
Ecological Niche• Native species – naturally found in that ecosystem• Nonnative species – invasive, alien, exotic• Spread ...
Indicator Species• Indicator Species - Early warningsystem, damage to the environmentcauses this species population decline.
Keystone Species• Keystone Species - Significant role inecosystem food web: large affect on otherspecies in an ecosystem.•...
Keystone Species• Elimination mayalter structureand/or functionof ecosystem• Pollinators –bees, butterflies,hummingbirds,b...
Keystone Species• Top predators – alligator, wolf, lion,sharks
Keystone Species• Keystone species create habitat/ecosystem & help to keep itfunctioning.
Foundation Species• Create habitats and ecosystems• Ex. Beavers, Elephants, Seed dispersers
Upcoming SlideShare
Loading in …5
×

4 6 species role in ecosystems

5,864 views

Published on

Published in: Education, Technology
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
5,864
On SlideShare
0
From Embeds
0
Number of Embeds
738
Actions
Shares
0
Downloads
6
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

4 6 species role in ecosystems

  1. 1. 4-6 Species Role in Ecosystems
  2. 2. Concept to Understand• Each species plays a specificecological role called its niche.
  3. 3. Ecological Niche• Every species occupy unique niches and play specificroles in an ecosystem
  4. 4. Ecological Niche• Generalist species – can live many different places,eat many things, tolerate wide variety ofenvironmental conditions▫ Examples: people, mice, cockroaches
  5. 5. Cockroach Information• Existed for 350 million years – 3,500 known species• Highly adapted, rapidly producing generalists▫ Consume almost anything▫ Endure food shortage▫ Survive everywhere except polar regions▫ Avoid predation• Carry human diseases
  6. 6. Ecological Niche• Specialist species – can only survive in very specifichabitat▫ Examples: most salamanders, giant pandas
  7. 7. Ecological Niche• Native species – naturally found in that ecosystem• Nonnative species – invasive, alien, exotic• Spread to new ecosystems (because of humans)• Problems:• 1. No predators• 2. Kill native specieswhich lack adaptation
  8. 8. Indicator Species• Indicator Species - Early warningsystem, damage to the environmentcauses this species population decline.
  9. 9. Keystone Species• Keystone Species - Significant role inecosystem food web: large affect on otherspecies in an ecosystem.• Ex. Algae
  10. 10. Keystone Species• Elimination mayalter structureand/or functionof ecosystem• Pollinators –bees, butterflies,hummingbirds,bats
  11. 11. Keystone Species• Top predators – alligator, wolf, lion,sharks
  12. 12. Keystone Species• Keystone species create habitat/ecosystem & help to keep itfunctioning.
  13. 13. Foundation Species• Create habitats and ecosystems• Ex. Beavers, Elephants, Seed dispersers

×