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Conservation Genetics: Plants

This web page presents samples of genetics and genomics research from the USGS Biological Resources Discipline about the conservation genetics of plants.

  • John A. Young sampling American ginseng (Panax quinquefolius) for genetic analysis.

Native Plants, Insects and Ecosystems

The geographical isolation of the Hawaiian Islands has resulted in the evolution of a highly endemic biota: approximately 80 percent of Hawaii's plants, 100 percent of its forest birds, and 67 percent of its arthropods are found nowhere else in the world. But human colonization of the Islands has severely impacted native plant and animal More...

  • Image of Haleakala silversword (Argyroxiphium sandwicense macrocephalum)

Nonnative Grass Invasions and Fire in the Sonoran Desert

This issues overview and its resources deal with the spread of nonnative grasses in the Sonoran desert of Arizona has increased the risk of devastating fires by ignited fuel. The saguaro cactuses and desert tortoises have suffered catastrophic population losses as a result of these fires fueled by nonnative grasses. Read more about nonnative More...

  • Burned saguaros and yuccas, 1995 Rio Fire in the Phoenix area