5th Grade - Interdependence in Ecosystems

In Glogpedia

by kpduda
Last updated 5 years ago

Discipline:
Science
Subject:
Ecosystems

Toggle fullscreen Print glog
5th Grade - Interdependence in Ecosystems

Food Webs & Food Chains:food web: a community of organisms where there are several interrelated food chains. Food chain: a community of organisms where each member is eaten in turn by another member. Energy is passed through food chains, beginning with energy form the sun.

Interdependence in Ecosystems

Competition for Resources:The attempt of different organisms to obtain the same limited resource, whether or not the organisms interact with each other.

•Organisms that depend on the same resource compete for that resource when it is limited.•Both plants and animals compete for resources.•Competition may be between individuals of the same species or between individuals of different species.•Competition for resources does not necessarily imply direct confrontation between organisms, and sometimes competition involves finding or using the resource first.

Misconception: Plants do not compete for resources. (Believed by 31% of 6-8th graders)Correct: Plants compete for water, space, and light when those resources are limited.

Misconception: If a population in a food web is disturbed, there will be little or no effect on populations that are not within the linear sequence in the food web. (Believed by 31% of 6-8th graders)Correct: When organisms eat or are eaten by other organisms, it may effect other populations that are not eating/being eaten by those organisms. This is because once an organism is eaten, it's no longer food for other populations & will no longer eat other organisms..

Online Activity: Choose one of four food webs to create using leveled categories to place pictures of organisms in the food web. website:http://www.gould.edu.au/foodwebs/kids_web.htm

My Antarctic Food Web

Diagram of Humans in Food Web

Try this! Students act out the interactions that occur in food webs by holding a section of one long piece of string to represent an organism in the food chain. This activity shows students how the string links organisms to other organisms within the same food chain and to other organisms in other food chains, creating a food web.

Try this! Students act out competition by competing in groups (plants) to build the most "roots" or linking cubes in 30 seconds. The winner is the best competitor because they will get the most water from their roots.

•Organisms that depend on the same resource compete for that resource when it is limited.•Both plants and animals compete for resources.•Competition may be between individuals of the same species or between individuals of different species.•Competition for resources does not necessarily imply direct confrontation between organisms, and sometimes competition involves finding or using the resource first.

How do species interact with one another and shape marine ecosystems?

National Geographic Website: http://education.nationalgeographic.com/education/activity/ecological-relationships/?ar_a=1


Comments

    There are no comments for this Glog.