TY - BOOK AU - Slade, Suzanne AU - Schwartz, Carol TI - What if there were no lemmings?: A Book about the tundra ecosystem SN - 9781404863965 PY - 2010/// CY - Mankato, MN PB - Picture Window Books KW - Tundra Ecology KW - Juvenile literature KW - Arctic Regions KW - Lemmings KW - Habitat N1 - Discusses the tundra ecosystem and the role of lemmings as a keystone species in helping to maintain it, describing the lemmings' place on the food chain and what would happen to the tundra if they were to become extinct ER -