energy flow in an ecosystem l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Energy Flow in an Ecosystem PowerPoint Presentation
Download Presentation
Energy Flow in an Ecosystem

Loading in 2 Seconds...

play fullscreen
1 / 24

Energy Flow in an Ecosystem - PowerPoint PPT Presentation


  • 151 Views
  • Uploaded on

Energy Flow in an Ecosystem. Energy Flow. Energy in an ecosystem originally comes from the sun Energy flows through Ecosystems from producers to consumers Producers (make food) Consumers (use food by eating producers or other consumers). Producers.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Energy Flow in an Ecosystem


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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
energy flow
Energy Flow
  • Energy in an ecosystem originally comes from the sun
  • Energy flows through Ecosystems from producers to consumers
    • Producers (make food)
    • Consumers (use food by eating producers or other consumers)
producers
Producers
  • Sunlight is the main source of energy for most life on earth.
  • Producers contain chlorophyll & can use energy directly from the sun
autotrophs
Autotrophs
  • An Autotroph is any organism that can produce its own food supply!
  • Autotrophs are also called Producers
  • Plants, algae, some protists, & some bacteria are examples
niche of a producer
Niche of a Producer
  • Captures energy and transforms it into organic, stored energy for the use of living organisms.
  • May be photoautotrophs using light energy (e.g. plants)
  • May be chemoautotrophs using chemical energy (e.g. cyanobacteria)
photoautotroph
Photoautotroph

Producer That Captures Energy from the sun by:

  • Photosynthesis
    • Adds Oxygen to the atmosphere
    • Removes Carbon Dioxide from the Atmosphere

Algae

habitat of photoautotrophs
Habitat of Photoautotrophs
  • On Land
    • Plants
  • In The Sea
    • Algae
  • Tidal Flats & Salt Marshes
    • Cyanobacteria
chemoautotrophs
Chemoautotrophs
  • Capture energy from the bonds of inorganic molecules such as Hydrogen Sulfide
  • Process is called Chemosynthesis
  • Often occurs in deep sea vents or gut of animals

Called a Black smoker (thermal vent)

consumers
Consumers

Heterotrophs eat other organisms to obtain energy. (e.g. animals)

  • Herbivores
    • Eat Only Plants
  • Carnivores
    • Eat Only Other Animals
consumers11
Consumers

Heterotrophs eat other organisms to obtain energy.

  • Omnivores (Humans)
    • Eat Plants & Animals
  • Detritivores (Scavengers)
    • Feed On Dead Plant & Animal Remains (buzzards)
  • Decomposers
    • Fungi & Bacteria
feeding relationships
Feeding Relationships

Energy flows through an ecosystem in one direction

from producers to various levels of consumers

feeding relationships13
Feeding Relationships
  • Food Chain
    • Simple Energy path through an ecosystem
  • Food Web
    • More realistic path through an ecosystem made of many food chains
food chain
Food Chain

3rd Order consumer

2nd Order Consumer

1st order Consumer

4th Order Consumer

Producer(trapped sunlight & stored food)

trophic levels
Trophic Levels

Each Level In A Food Chain or Food Web is a Trophic Level.

  • Producers
    • Always The First Trophic Level
    • How Energy Enters The System
  • Herbivores
    • Second Trophic Level
trophic levels20
Trophic Levels
  • Carnivores/Omnivores
    • Make Up The Remaining Trophic Levels

Each level depends on the one below it for energy.

ecological pyramids
Ecological Pyramids

Graphic Representations Of The Relative Amounts of Energy or Matter At Each Trophic Level

May be:

Energy Pyramid

Biomass Pyramid

Pyramid of Numbers