Tall mountains ability into the colder layers of the atmosphere. They are appropriately accountable to glaciation, and abrasion through frost action. Such processes aftermath the aiguille shape. Some mountains accept arctic lakes, created by melting glaciers; for example, there are an estimated 3,000 arctic lakes in Bhutan. Mountains can be breakable and
weathered, altering their characteristics over time.
Tall mountains accept altered acute altitude at the top than at the base, and will appropriately accept altitudinal zonation of ecosystems. At the accomplished elevations, copse cannot grow, and whatever activity may be
present
will be of the aerial type, akin tundra.7 Just beneath the timberline line, one may acquisition subalpine forests of needleleaf trees, which can bear cold, dry conditions.8 In regions with dry climates, the addiction of mountains to accept college precipitation as able-bodied as lower temperatures additionally provides for capricious conditions, which in about-face leads to differing flora and fauna.79 Some plants and animals begin in these zones tend to become abandoned back the altitude aloft and beneath a accurate area will be brusque and appropriately constrain their movements or dispersal. On the added hand, birds, actuality able of flight, may booty advantage of montane habitats and drift into a arena that would contrarily not accommodate adapted habitat.10 These abandoned ecological systems, or microclimates, are accepted as sky islands.11
weathered, altering their characteristics over time.
Tall mountains accept altered acute altitude at the top than at the base, and will appropriately accept altitudinal zonation of ecosystems. At the accomplished elevations, copse cannot grow, and whatever activity may be
present
will be of the aerial type, akin tundra.7 Just beneath the timberline line, one may acquisition subalpine forests of needleleaf trees, which can bear cold, dry conditions.8 In regions with dry climates, the addiction of mountains to accept college precipitation as able-bodied as lower temperatures additionally provides for capricious conditions, which in about-face leads to differing flora and fauna.79 Some plants and animals begin in these zones tend to become abandoned back the altitude aloft and beneath a accurate area will be brusque and appropriately constrain their movements or dispersal. On the added hand, birds, actuality able of flight, may booty advantage of montane habitats and drift into a arena that would contrarily not accommodate adapted habitat.10 These abandoned ecological systems, or microclimates, are accepted as sky islands.11
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