... level study is needed to measure this. 12 B. Nature Conservation Natural resources conservation includes preserving natural ecosystems like wetlands, forests and meadows, conserving endangered ... analysis could be done for other natural areas in the United States, the different types of forests, lakes, deserts, grasslands, etc. Lack of conservation of natural resources presents a degradation ... thousands of smaller natural areas in the United States. The DOI report gives an overall synopsis of all DOI activities and includes details for topics beyond the realm of natural resources conservation....