1. 5.1 Communities and ecosystems EQ: How do species interact with one another?
Blog: What are some things that you would like to know about ecology?
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3. Curacao

6. Food web
Diagram that shows how food chains are linked together in a complex feeding relationship
The food web has a number of advantages over a food chains including:
Shows the much more complex interactions between species within a community/ ecosystem
More than one producer supporting a community
A single producer being a food source for a number of primary consumers
That a consumer may have a number of different food sources on the same or different trophic levels
That a consumer can be an omnivore, feeding as a primary consumer and as a consumer at higher trophic levels

8. 5.1 Communities and ecosystems EQ: How do species interact with one another?
Finish the food web using the food chains that you created last time. Lay your cards out on the poster paper provided. Draw feeding relationships using markers (not strings).
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9. Biomagnification
Process in which chemical substances become more concentrated at each trophic level
As each individual eats contaminated food, it builds up these chemical substances
When large number of contaminated individuals are eaten, they pass on a high concentration of chemicals to the predator

10. Minamata Disease (1956) Mercury Poisoning
Methylmercury in industrial wastewater from Chisso Corporation’s chemical factory (nitrogenous fertilizer)
Bioaccumulation in fish and shellfish in Minamata Bay
Neurological disorder: general weakness of muscles, coordination disturbance, narrow visual field, insanity, coma death

11. Curacao: Oil refining
Oil refining: purify crude oil into petroleum products (diesel, gasoline)
up to 100 pollutants emitted from the stacks
land is polluted by the large amount of harmful waste from refineries which needs to be dumped
water is polluted by the fallout from air pollution and by refineries discharging chemical pollutants into waterways