Food Webs
Food webs are united food chains, in which a community of organisms are interrelated at many different levels. Food chains/webs are connected and they depend on each other to survive, if one of the species becomes extinct, the rest will die out because eventually there would be no food for the animals that are higher up in the food chain. Wetlands are extremely valuable for the survival of food webs/chains because they nurture flora and fauna and create and care for a diverse range of organisms.
Due to Bicentennial park being next to a main road, pollution is very common and it has a devastating effect on the ecosystem. Some of the environmental pressures are: rubbish - from people not using the bins that are provided.
- pollution - this is from all of the harmful chemicals and smoke that come from factories and transport, such as car pollution.
We researched about a particular food web in Bicentennial park, it contained most of the plants and animals that live there. Some of these being: snails, bacteria, crabs and more. We learnt that in Bicentennial park they not only have a producer and a consumer, but also a decomposer. When learning all of this we recorded a chart to see which animals were what.
Organism
Where does it get its energy?
Is it a producer, consumer or a decomposer?
Snails - Biofilm/bacteria - Consumer
Bacteria - Plant and animal matter - Decomposer
Crabs - Biofilm and leaves - Consumer
Birds - Crabs and snails - Consumer
Algae - Sun - Producer
Mangrove - Sun - Producer
Due to Bicentennial park being next to a main road, pollution is very common and it has a devastating effect on the ecosystem. Some of the environmental pressures are: rubbish - from people not using the bins that are provided.
- pollution - this is from all of the harmful chemicals and smoke that come from factories and transport, such as car pollution.
We researched about a particular food web in Bicentennial park, it contained most of the plants and animals that live there. Some of these being: snails, bacteria, crabs and more. We learnt that in Bicentennial park they not only have a producer and a consumer, but also a decomposer. When learning all of this we recorded a chart to see which animals were what.
Organism
Where does it get its energy?
Is it a producer, consumer or a decomposer?
Snails - Biofilm/bacteria - Consumer
Bacteria - Plant and animal matter - Decomposer
Crabs - Biofilm and leaves - Consumer
Birds - Crabs and snails - Consumer
Algae - Sun - Producer
Mangrove - Sun - Producer
This is an example of pollution in Bicentennial Park, and how the people who work there try to stop it.
The Food Chain of Bicentennial Park
The Producer
Producers are self-nourishing organisms that perform photosynthesis, green plants are common producers and they become food for other organisms. producers bring energy into an ecosystem, the energy travels through all of the stages (producer, consumer, decomposer) but it gradually gets smaller as each organism takes the energy it needs and only passes on a small percentage of whats left.
The Consumer
Consumers are organisms from an ecological food chain that receive their energy by consuming other organisms. It will continue to eat other organisms until it has a satisfactory amount of energy. Consumers will eat any organisms, that being living or dead. Consumers can be, -
- herbivores - it will only eat plants
- carnivores - it will only eat meat (other animals)
- omnivores - it will eat both plants and meat.
- herbivores - it will only eat plants
- carnivores - it will only eat meat (other animals)
- omnivores - it will eat both plants and meat.
The Decomposer
Decomposers are organisms that break down the tissue and/or structures or dead organisms. They would also break down the waste of other organisms. There are two types of decomposers, scavengers and decomposers. Scavengers find dead plants and animals and eat them, in doing so they break it up into small pieces. Once the scavenger is done, the decomposer comes in and finishes of the job, many different types of decomposers are microscopic, meaning they cannot be seen with the naked eye.