|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.
Scholarly journal is a peer-reviewed journal in which scholarship relating to a particular academic discipline is published. Scholarly journals serve as forums for the introduction and presentation for scrutiny of new research, and the critique of existing research. Content typically takes the form of articles presenting original research, review articles, and book reviews. The term Scholarly journal applies to scholarly publications in all fields; this article discusses the aspects common to all academic field journals.