This book meets several of the Next Generation Science Standards (NGSS) along with … A Kid s Guide to Keystone Species in Nature focuses on several ecosystems such as those found in the mountains. This book meets several of the Next Generation Science Standards (NGSS) along with … Like the architectural keystone that supports an arch, from whence the term derives, a keystone species is defined by this: if you remove it, the structure collapses. Without keystone species, the ecosystem would be dramatically different or cease to exist altogether. A keystone species is one whose presence is key to maintaining biodiversity within an ecosystem and to upholding an ecological community’s structure. Keystone Species - Otters, Alligators and Elephants - Read and React. What was the … The report found that at least 137 wildlife species in the Pacific Northwest alone – from caddisflies to orcas – are predators or scavengers of salmon at some stage in their life cycle. Keystone Species. The intertidal sea star, Pisaster ochraceus, of the northwestern United States is a keystone species… 1. A Kid's Guide to Keystone Species in Nature focuses on several ecosystems such as those found in grassland. A keystone species is a plant or animal that plays a unique and crucial role in the way an ecosystem functions. The contributions of a keystone species … What happened to the other species in the coastal waters when the sea otter was hunted almost to extinction: 2. Independent bookshops … Wild Salmon Center’s keystone species logo, created by Ed Hepp, is based on a study by the Washington Department of Natural Resources. All species in an ecosystem, or habitat, rely on each other. Immediately download the Keystone species summary, chapter-by-chapter analysis, book notes, essays, quotes, character descriptions, lesson plans, and more - everything you need for studying or teaching Keystone species.