CLASSIFICATION KINGDOM FUNGI
SECONDARY
CONSUMERS:
These form
the third trophic level.
- They feed on primary consumers
- This level can be followed by tertiary consumers which feed on secondary consumer then quaternary consumer feed on tertiary consumers.
DECOMPOSERS
These are
organisms that decompose dead organic matter
- This is the final trophic level.
- These organisms feed on dead matter and break it down there by facilitating decomposition.
- The two main decomposers are the saprophytic fungi and saprophytic bacteria.
- The relationship between organisms at different trophic levels can be presented diagrammatically as follows;
FOOD CHAINS- a
food chain is a linear relationship among the organisms of a community in which
each organism feeds on the one preceding it.
- It presents energy flow from one trophic level to the next.
- Each organism feeds on therefore derives energy from the proceedings one in return it is eaten by and therefore provides energy for the one following it.
- The arrows indicate the direction of energy flow
Example of
food chain:
FOOD WEBS
A food web refers to the several
food chains interlinking together
- Most herbivores consume more than one kind of plants and omnivores consume more than one kind of plant and animal and the decomposer consume more than one kind of herbivore
Example
of food web
