While i agree that loss of biodiversity especially in tropical forests, is a catastrophe, i don't think that keeping a few more insects and birds in our fields

While i agree that loss of biodiversity especially in tropical forests, is a catastrophe, i don't think that keeping a few more insects and birds in our fields helps. In fact it forces us to use more space for agriculture and destroy more of valuable forests. Also most of the plants we cultivate are invasive species, and their main pests are invasive as well, so we have plenty of opportunities to experiment on this invasive species before before we kill native species in their original habitats.