In the contemporary world environmental changes are effecting all spices not only a mankind. The negative phenomenon can lead to the dying out of beautiful animals, insects and so on. In order to prevent this it is necessary to spot a decline and identify its main causes in time. Of course, ecosystems are complex and there could be several negative factors. Even if not all of them could be controlled, it is essential to take all possible precautions.
Introduction
Monarch butterfly (Danaus plexippus) are colored black-orange-and-white. (Monarch Butterfly n.d.)They are the only mass migrating butterflies in North America. The ...