Biome: Tundra
Flora: Low growing lichens, mosses, grasses, sedges, dwarf shrubs, small plants typically ground hugging or warmth preserving in some way, rosettes. Most of the plants are small, grow close together and close to the ground. This protects them from the cold temperatures and the strong winds. Some flowering plants have fuzzy coverings on the stems, leaves and buds to provide protection from the wind. Some have woolly seed covers
Fauna: Arctic Fox
large, compact bodies following Bergmann's and Allen's rules
a thick insulating cover of feathers or fur
pelage and plumage that turns white in winter, brown in summerPhysiological adaptations
ability to accumulate thick deposits of fat during the short growing season. Fat acts as insulation and as a store of energy for use during the winter, when animal species remain active.
cyclical fluctuations in population size, best seen perhaps in the lemming, a small rodent which is the major herbivore in the tundra's simple food chain. Predator populations and plant populations respond in kind to the peaks and crashes of the herbivore populations.
large, compact bodies following Bergmann's and Allen's rules
a thick insulating cover of feathers or fur
pelage and plumage that turns white in winter, brown in summerPhysiological adaptations
ability to accumulate thick deposits of fat during the short growing season. Fat acts as insulation and as a store of energy for use during the winter, when animal species remain active.
cyclical fluctuations in population size, best seen perhaps in the lemming, a small rodent which is the major herbivore in the tundra's simple food chain. Predator populations and plant populations respond in kind to the peaks and crashes of the herbivore populations.
No comments:
Post a Comment