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Ecosystems

Educational Technology
by

Amanda Poracky

on 13 November 2013

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Transcript of Ecosystems

What is an Ecosystem?
Interactions in Ecosystems
Amanda Poracky
Educational Technology
Module 5

Living Things
Non-Living Things

Food Chains
Food Webs
Food Pyramids

Populations
Communities
Niches

What makes up parts of an ecosystem?

What makes up parts of an Ecosystem?

The Population & Community
The Niche
Every organism has a Niche.
A Niche is the role the organism plays in the ecosystem.
All of the roles the organisms play within the ecosystem keeps it balanced.


The Flow of Energy in an Ecosystem
Energy is needed for organisms to live.
Energy is passed through an ecosystem when food is eaten, but some energy is changed to heat and is not passed on.

The Flow of Energy in an Ecosystem
Animals
Plants
Organisms
The Habitat
The area, that which the organisms live in together is known as the habitat.
Case Study:
An owl is the hunter of a forest. He eats small animals like mice and his habitat is in the trees. The population of the owls balances out the population of mice. If the number of mice in an ecosystem decreases, then owls will have less food, which will make the number of owls decrease as well. If there are an abundant amount of mice in the ecosystem, the number of owls will increase because they will have more food available to them.
The Process

There are many processes that move the flow of energy through organisms, such as food chains, energy pyramids, or food webs.

Food Chains show the energy flow from one producer to the herbivore, the carnivore, and then the decomposer.
Food Chains
Food Webs help to view the energy flow of an entire ecosystem because it includes how consumers eat many types of organisms and not just one.
Food Webs

Energy Pyramids are used to show the amounts of energy that flows through each level of a food chain.

Since producers get the most energy from sunlight they harvest the most energy. Therefore, they are located at the base of the pyramid. Higher levels in the pyramid recieve less energy

Food Pyramids
A group of organism of one species that live in the same area.
Population
“WILDLIFE & HABITAT DIORAMAS” © 2011 Asterio Tecson , used under a Creative Commons Attribution 2.0 Generic
An ecosystem is all the living and non-living things interacting in an area.
What is an Ecosystem?
Nonliving Things
Water
Soil
Sunlight
Sand
Rocks

Non-living Slide: “Ocean,” © 2005 Jeremy Nobly, used under a Creative Commons Attribution 2.0 Generic
Living Things:
“Racket-Tailed Drongo,” © 2011 Sri Harsha, used under a Creative Commons Attribution 2.0 Generic
Community
All the population of different species in the same area.
They all depend on each other for food, shelter, and reproduction.

“Coral reef ecosystem at Palmyra Atoll National Wildlife Refge,” © 2011 USFWS- Pacific Region, used under a Creative Commons Attribution 2.0 Generic

“Owl,” © 2007 Farfid Fleifel, used under a Creative Commons Attribution 2.0 Generic

“Simplified Food Chain,” ©2012 LadyoHats, used under a Creative Commons CC0 1.0 Universal Public Domain Dedication

“Chesapeake Waterbird Food Web,” © 2008 Mathew C. Perry, used under a Creative Commons CC0 1.0 Universal Public Domain Dedication
The Process in depth
“What are Trophic Levels? | Ecology and Environment |,” ©2013 Devendra Banhart, used from Youtube.com
“The Food Chain,” ©2010 Dgies, used under a Creative Commons Attribution 2.0 Generic
Full transcript