As a result of these two influences, Jasper is generally colder and drier than areas to the west. Climatic differences at different altitudes produce different environments which are inhabited by various combinations of plants, animals, and other forms of life. Ecologically, plants and animals are not independent of their environment or of each other. In the sections that follow, each of these ecosystem components will be described in greater detail. Climatic differences associated with changes in altitude are the main determinants of these differences in biodiversity.
Higher elevations are generally colder and wetter, while lower elevations are warmer and drier.
Local differences in slope angle and direction can create local microclimates. Steeper slopes are generally better drained and drier than moderately sloping or flat areas. The ranges of plants and animals across this altitudinal range are related largely to their tolerances to cold, heat and drought. Other factors that influence distributions include food species, competition with other species, and soil conditions. The wettest areas are occupied by lakes, ponds, marshes and fens.