Question
Explain the defence mechanisms evolved in preys to avoid overpopulation of their predators.
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Answer
- Certain insect species and frogs have camouflage (cryptic colouration) to avoid detection by their predators
- Some animals are highly distasteful to their predators, e.g. monarch butterfly accumulates a chemical by feeding on a poisonous weed during its caterpillar stage.
- Some prey are poisonous and hence are avoided by predators.
- Plants have developed thorns and spines as defence mechanism against browsing animals.
- Some plants produce certain chemicals which affect the metabolism of the herbivores.
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