BIO120H1 Chapter Notes - Chapter Biomes: Seed Predation, Food Web, Succulent Plant
36
BIO120H1 Full Course Notes
Verified Note
36 documents
Document Summary
Biomes are determined by the amount and seasonality of temperature and precipitation. Abiotic factors: long growing season, precipitation ample year-round, water available for evaporative cooling to prevent overheating of leaves, adequate moisture and soil nutrients. Abiotic factors: generally found in the northern hemisphere, short growing season, cold temperatures, sandy, leached, nutrient-poor soil, due to combination of, acidic leaf litter from conifer needles, substantial rain and heavy snow. Abiotic factors: high latitude, too cold for trees (one long winter, nutrient-poor soil because cold temperatures limit microbial action, low productivity. Insect-pollinators (bees, flies at higher elevations: large mammals move to sheltered sites at lower elevations during. Grasslands and prairie biome (aka savannah, aka plains) Abiotic factors: similar to a seasonal desert but wetter and more productive, hot, rainless summers, warm, rainy winters, very little frost. Animals: some small mammals that use shrubs as cover (rabbits, woodcock, grouse, some large predatory animals (owls, lynxes, snakes, reptiles)
