   Adaptation is powered by natural selection. When a trait arises  that allows an organism to better adapt to their environment, it  will be passed on to the next generation. Over time this trait will  accumulate in the population.t can  also refer to a physical or genetic trai â¦ t that helps an organism to  be better suited to survive in their environment.    For example, polar bears are adapted to living in the cold because  they grow thick fur that keeps them warm, and thus allows them to  survive in their frigid environment.
Average Weather in September in West Yellowstone Montana, United States. In West Yellowstone, the month of September is characterized by rapidly falling daily high temperatures, with daily highs decreasing by 12Â°F, from 71Â°F to 59Â°F over the course of the month, and rarely exceeding 79Â°F or dropping below 44Â°F.
Climate: Climate in the taiga is cold, with average annual temperatures from about +5Â° to -5Â° C (see figure at right). I always find it interesting to note that one location with a coniferous forest, Yellowstone National Park in Wyoming, has an average annual temperature of only 1Â° C! Precipitation varies, from about 20 cm of precipitation per year to over 200 cm. Much of the precipitation, of course, is in the form of snow. The winters are cold and long; summers are relatively short and cool. With snowmelt and low temperatures, there is little evaporation in the summer, so the ground is usually very moist during the growing season.