Presentation on theme: "Ecology and The Biosphere. Abiotic vs. Biotic l Abiotic (nonliving) l temperature l light l water l nutrients l wind l disturbance l Biotic (living) l."— Presentation transcript:
Abiotic vs. Biotic l Abiotic (nonliving) l temperature l light l water l nutrients l wind l disturbance l Biotic (living) l other individuals of the same species l individuals of different species (predators, prey, parasites)
l Tropical Forests l Thorn l Deciduous l Rain forests l Savannas l Grasslands l Deserts l Chaparral l Coastal Sage Scrub l Temperate Deciduous Forests l Taiga l Tundra
Tropical Rain Forest l The tropical rain forest is a forest of tall trees l An average of 50 to 260 inches (125 to 660 cm.) of rain falls yearly. l The temperature in a rain forest rarely gets higher than 93 °F (34 °C) or drops below 68 °F (20 °C);
Savannahs l A savanna is a rolling grassland scattered with shrubs and isolated trees l Not enough rain falls on a savanna to support forests. l Savannas have warm temperature year round and two very different seasons l long dry season (winter) – 4 inches of rain l very wet season (summer). In the summer there is lots of rain.
Grasslands l Grassland biomes are large, rolling terrains of grasses, flowers and herbs. l Latitude, soil and local climates for the most part determine what kinds of plants grow l Grasslands are a region where the average annual precipitation is great enough to support grasses, and in some areas a few trees. l The precipitation is so erratic that drought and fire prevent large forests from growing.
Chaparral l Chaparral is characterized as being very hot and dry. l Temperature l the winter is very mild and is usually about 10 °C. l the summer. It is so hot and dry at 40 °C that fires and droughts are very common.
Coastal Sage Scrub l Coastal sage scrub is characterized as being very hot and dry. l Temperature l the winter is very mild and is usually about 10 °C. l the summer. It is so hot and dry at 40 °C that fires and droughts are very common.
Temperate Deciduous Forest l Deciduous forests can be found in the eastern half of North America l The average annual temperature in a deciduous forest is 50° F. The average rainfall is 30 to 60 inches a year.
Taiga l The taiga is the biome of the needleleaf forest. l Taiga is the Russian word for forest and is the largest biome in the world. l The winters in the taiga are very cold with only snowfall. l The summers are warm, rainy, and humid. l A lot of coniferous trees grow in the taiga. l The taiga is also known as the boreal forest.
Tundra l Tundra means a barren land. l The ground is permanently frozen 10 inches to 3 feet (25 to 100 cm) down so that trees can't grow there. l rocky ground can only support low growing plants like mosses, heaths, and lichen. l In the winter it is cold and dark and in the summer, when the snow and the top layer of permafrost melt, it is very soggy