Give proof that amphibians need protection?

Various amphibians are now greatly affected by the actions of people. Many bodies of water are being drained. First of all, this applies to swamps. People destroy them in order to create a new community on the site of the swamp. But in such cases, not only amphibians suffer, but all living organisms that depend on the reservoir. Also, amphibians can suffer from various poisons and waste that enter the water. People can conduct their activities near water bodies, which negatively affects animals. But in our time, there is no great threat to amphibians.