Australian Food Web Diagram
Scientists estimate that if there are a million producers algae phytoplankton and sea grass in a food web there may only be 10 000 herbivores.
Australian food web diagram. Film series in 10 parts marine ecosystem science learning. Such a food web may support 100 secondary consumers such as tuna. Marine food webs are usually longer than terrestrial food webs. All these organisms support only one apex predator such as a person.
In any given food chain all the species of plants and animals are dependent on each other such that the repercussions of the extinction of a single species are not just felt on the food chain but are felt on the entire food web. For example in the aquatic food web shown below figure 3 on an australian river ecosystem the primary producers in this food web are the algae and the sedge. You can edit this spider diagram using creately diagramming tool and include in your report presentation website. Design a food web pdf.
Trophic levels in food webs. A recommended word count was given for the first question as a guide to the level of depth required by students in their answers. Students worked individually with no access to resources other than the wetland food web diagram. Food web is an important conceptual tool for illustrating the feeding relationships among species within a community revealing species interactions and community structure and understanding the.
A spider diagram showing australian tropical rainforest food web. Since energy is transferred as food food webs basically show what eats what in an ecosystem. A food web is a diagram showing the transfer of energy between species. Food webs are organised by trophic level starting with producers plants which are consumed by herbivores level 1 consumers which in turn are consumed by level 2 consumers and so on.
They were given 40 minutes to complete the task. The rainforest food web diagram shows predator prey relationships in a series of interconnected food chains. When we talk about food webs or food chains we need to understand that they have evolved over the period to reach this stage. Below is a visual diagram style representation of the food web of the great barrier reef featuring some of the core marine animals that can be found in its waters that provides a basic overview with the arrows pointing in the direction of one animal that eats another.