If a toxic chemical were introduced into the environment of the jaguar, it would bring much destruction. For example, pesticides might be used on banana trees to produce higher yields by killing off insects. The toxin would bioaccumulate in the banana trees. Spider monkeys would then eat the bananas, take some of their biomass, and the pesticide would biomagnify into the monkeys. Jaguars would then eat the spider monkeys, take some of their biomass, and in turn the toxin would biomagnify into the jaguar. Both spider monkeys, jaguars, and any other animal that eats either bananas, animals that eat bananas, or animals that eat those animals would die off due to ingesting the pesticides.
Additionally, if all jaguars died, then spider monkeys would overpopulate. With numerous spider monkeys, they will eat more macaws. With less macaws, Brazil nut trees would overpopulate and all the animals that eat macaws wouldn't have as much food. As a result, some animals such as green anacondas that eat macaws will die due to starvation. The chain then repeats throughout the whole food web with these different animals causing great chaos with overpopulation and extinction of species.
Additionally, if all jaguars died, then spider monkeys would overpopulate. With numerous spider monkeys, they will eat more macaws. With less macaws, Brazil nut trees would overpopulate and all the animals that eat macaws wouldn't have as much food. As a result, some animals such as green anacondas that eat macaws will die due to starvation. The chain then repeats throughout the whole food web with these different animals causing great chaos with overpopulation and extinction of species.