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3. The Influence of Climate and Ecosystems
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Giant insects grew and survived in perfect conditions because of the generally warm and humid atmosphere of the time. The rich forests and plenty of vegetation gave insects plenty of food, which helped them to flourish and spread in scope. Large swampy areas dotted throughout the Carboniferous period saw the flourishing of ferns and horsetails, so providing a rich habitat for insects.
Each of these habitats supported a variety of insect species, each suited to use certain resources. Food's availability let insects grow bigger since they could eat more nutrients to sustain their higher body weight. Herbivorous insects, for instance, could eat the plenty of flora, whereas predatory insects pursue smaller prey, therefore helping to explain their proliferation.
Furthermore, the Carboniferous period's mild temperatures helped metabolic activities to enable insects' fast growth. Ectothermic insects—that is, those whose body temperature is controlled by their surroundings— Warmer temperatures can improve their rates of growth and success in reproduction, so producing bigger body sizes.
The ecosystems that supported big insects started to alter as the temperature and humidity changed during millions of years. Many major insect species vanished when the Earth's temperature gradually cooled and dried as their habitats and food sources changed. Knowing how climate shapes the development of insects helps one to appreciate the intricate interactions among creatures and their surroundings.
