Both the reading and the lecture are talking about the decline of the frog, which plays a critical role in the ecosystem. The author of the reading part proposes three methods that can prevent frogs from population declining. However, the lecturer disagrees with him. She points out the flaws of each of the methods in the lecture.

To begin with, the author says that chemicals that pesticides include are harmful to the frog. It is said in the reading that once these chemicals get into a frog’s body, they will attack the nervous system of the frog. Therefore, he thinks to make and issue correlated laws to forbid pesticide use is effective to protect frogs. The lecturer stresses that pesticide is crucial for farmers to cultivate crops. Farmers rely on the pesticide to make sure they can have a big harvest. If some regions are restricted by using pesticides, farmers there will in a disadvantage, and it is unfair.

Secondly, the author claims that fungus contributes to the decline of the frog population. He supplies that fungus thickens the skin of frogs. It prevents frogs to absorb water and eventually causes dehydration. He suggests that leveraging medications and heat to treat frogs is feasible. The lecturer argues that this method requires treating each frog separately because every individual faces the same problem. Furthermore, we have to treat them repeatedly when a new year is coming. It indicates that this method is not sustainable and too complicated and expensive.

Finally, the author posits that human activities have invaded the habitat of frogs. The overusing of the water and the draining of the wetland break the condition of the water where frogs lay eggs in. So he notes that humans should be more aware of the protection of water. The lecturer cast her doubt by bringing up the fact that the degradation of the habitat of frogs is caused by global warming. Even though there is enough land for frogs, they still can not survive in these places if the temperature is not adequate. Therefore, only doing efforts on protecting water areas, such as lakes and marshes is useless to solve the problem from the root.