- Plant Rat Snake Hawk.
- Aquatic food chains :
- Phytoplanktons Zooplanktons Small crustacians
Predator insect Small fish Large fish Crocodile
- Phytoplanktons Zooplanktons Small fish Large fish
Shark
- Phytoplanktons Zooplanktons Fish Crane Hawk.
15.3 FOOD WEB :
In nature, the food chins are not isolated sequences but are rather
interconnected with one another. “A network of food chains which are
interconnected at various trophic levels, so as to form a number o
feeding connection amongst different organisms of a biotic community
is called as food web. The food web opens several alternate pathways
fro the flow of energy. Generally, food web operates according to test
and food performances of the organisms at each trophic level, yet
availability of food source and other compulsions are equally important.
The concept of food web appears to be more real than that of simple
food chain. The food web increases the stability of an ecosystem by
providing alternate source of the food and allowing endangered
population to grow in size. Many food chains are interlinked together to
form food web in a big ecosystem in which flow of food takes place
through many directions such as forest. A food web which is present in
forest ecosystem is a highly complex and permanent (stable) type of
food web.
