* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download World Biomes - Appoquinimink High School
Survey
Document related concepts
Ecosystem services wikipedia , lookup
Restoration ecology wikipedia , lookup
Human impact on the nitrogen cycle wikipedia , lookup
Habitat conservation wikipedia , lookup
Pleistocene Park wikipedia , lookup
Habitat destruction wikipedia , lookup
Theoretical ecology wikipedia , lookup
Old-growth forest wikipedia , lookup
History of wildlife tracking technology wikipedia , lookup
Geography of Somalia wikipedia , lookup
Reforestation wikipedia , lookup
List of ecoregions in North America (CEC) wikipedia , lookup
Biological Dynamics of Forest Fragments Project wikipedia , lookup
Transcript
World Biomes • A group of ecosystems that are related by having a similar type of of vegetation governed by similar climatic conditions – Major Terrestrial Biomes • • • • • • Desserts Grasslands and Prairies Tropical Rainforests Temperate rainforests Coniferous forests Tundra Deserts • Very dry; hot days and cold nights; less than 10in of rain per year • Thorny bushes and shrubs, cacti – scattered Grasslands/ Prairies • Seasonal rainfall; 10-60in of rain per year; frequent fires; soils rich and deep • Grass species – small and tall dependent on rainfall; some bushes and forests Tropical Rain Forests • Non-seasonal; rainfall frequent and heavy; over 95in of rain per year • Soils thin and poor • Average temp of 28oC (84oF) • High diversity of broadleaf evergreens, dense canopy, little understory, vines and epiphytes Temperate Forests • Seasonal; temps below freezing in winter, warmer summers – humid; 30-80 in of rainfall per year; well developed soils • Broadleafed deciduous trees; some conifers (pine trees); shrubby undergrowth –ferns, lichens, and mosses Coniferous forests • Seasonal – long cold winters, light precip in winter, heavier in summer • Soils acidic, much humus and litter • Conifers – spruce, fir, pine, hemlock; some deciduous –birch and maples; poor understory Tundra • Bitter cold – except 8-10wk growing season, precipitation is low, soils thin with permafrost • Low-growing sedges, dwarf shrubs, lichens, mosses and grasses Ecosystem Notes • Ecology- the study of Ecosystems • Ecosystem- an area where organisms thrive • Biome- a group of ecosystems that share the same climatic area. Is determined by type of vegetation and rainfall. • Biotic Factor- all living organisms in an environment, humans, plants, animals • Abiotic Factor- non-living parts of an environment, ex- rock, soil, sun • Habitat- an environment that meets an organism’s needs and functions for survival. Several niches make up a habitat. • Species- a group of organisms that can create offspring. • Population- A group of organisms all of the same species living in the same area at the same time. • Community- A collection of several populations that inhabit a common area. • Population Density- How many individuals occupying a certain area • Limiting Factor- anything that would keep something from surviving and reproducing • Natural Selection- individuals ability to survive into the next generation due to adaptations or an individual evolving to survive. • Niche- job an organism does within the habitat • Carrying Capacity- amount of population an area can contain based on resource availability • Food chain – a chain that hierarchy of different living things each of which feeds on the one below; (basically what eats what…) • Food web – an interlocking food chain within an ecological community; (what everything eats within an ecosystem)