|Habitat loss causes the greatest threat to species. The world's forests, plains, lakes, and other habitats continue to disappear as they are harvested for human consumption and cleared to make way for agriculture, housing, roads, pipelines and the other industrial development. Without a plan to create terrestrial and marine protected areas important ecological habitats will continue to be lost.
When an ecosystem has been dramatically changed by human activities such as agriculture, oil and gas exploration, commercial development or water diversion it may no longer be able to provide the food, water, cover, and places to raise young.
Journal articles are most often Primary Research Articles. However, they can also be Review Articles. These types of articles have different aims and requirements. Sometimes, an article describes a new tool or method. Because articles in scientific journals are specific, meticulously cited and peer-reviewed, journal databases are the best place to look for information on previous research on your species. Without a background in the field, journal articles may be hard to understand - however, you do not need to understand an entire article to be able to get valuable information from it.