Madrean pine-oak woodlands Reference Libraries
Sky Islands are mountains located within ranges that are isolated by valleys in which other ecosystems are located. As a result, mountain ecosystems are isolated from each other, and species can develop separately, as occurs on island groups such as the GalÃ¡pagos Islands. The best known example of sky islands are the northern end of the Sierra Madre Occidental in New Mexico, Arizona,...
- Bad luck; misfortune.
- The smallest amount possible or the most worthless thing.