Presentation on theme: "4.4 Biomes Regional climates:"— Presentation transcript:
1 4.4 Biomes Regional climates: For example~ a state or country with a ocean borderign it is involved in a cold ocean current that flows north to south, which makes summers cooler.Moist air will travel and expand to make clouds.Rain or snow will drop from the clouds to change the weather pattern
2 BiomesGroups of regional climate communities described in terms of the abiotic factors like:ClimateSoil typeAnd biotic factors like:PlantsAnimals
3 Characterized BYThe adaptations that allow them to survive and reproduce.
10 Tropical dry forest’sTropical dry forests grow in areas with rainy seasons alternate with dry seasons. In some cases after a period of rain is instantly followed by prolonged periods of drought.
11 Abiotic factorsTropical dry forests are warm all year round, and have rich soils that are subject to erosion.
12 Biotic FactorsPlant Life: plants have adapted to survive the dry seasons by loss of leaves.Plant Life: Some plants also have an extra thick waxy layer over their leaves to lower water loss and to store water in their tissue.
13 Biotic factors (Continued) Animal Life: to survive the dry seasons animals can reduce their needs for water by entering long periods of inactivity called estivation. Other animals including many birds and primates move to the areas where water is available for them during a dry season.
15 Answer 1: deciduous Answer 2: plant life, animal life What is a plant that sheds its leaves during a specific season?What are the two biotic factors of tropical dry forests?Answer 1: deciduous Answer 2: plant life, animal life
17 Tropical Grassland/ Savanna More rainfall than deserts but less than tropical dry forestsGrassy area usually with trees and shrubsFrequent firesAction of larger animals sometimes prevents area from turning dryIE: rhinoceroses and elephants
18 Abiotic and Biotic Factors Seasonal rainfallFires set by lightningBioticPlant life (adaptations)Animal life (migration)
19 Desert Less than 25 centimeters of rain annually Deserts undergo extreme daily temperature changes100⁰ F during the day to under 30⁰ F at night
20 Abiotic and Biotic Factors Low rainfallSoil rich in minerals but low in organic materialBioticPlant life (cacti)Animal life (avoid heat, get water)
22 Temperate grasslandGrasslands are areas where the vegetation is dominated by grasses.Temperatures don’t get too hot or too cold
23 Abiotic factors of the Temperate Grassland Abiotic factors- non-living tings that shape an ecosystem.Examples- warm to hot summers; cold winters; moderate sea soil precipitation, fertile soils; occasional fires.
24 Biotic factors of the Temperate Grassland Biotic factors- living things that shape an ecosystem.Examples- grasses and birds.
25 Abiotic factors of temperate woodland and scrubland Abiotic factors- non-living things that shape an ecosystem.Examples- hot bry summers; cool moist winters; thin, nutrient- poor soils; periodic fires.
26 Biotic factors of temperate woodland and scrubland Biotic factors- living things that shape an ecosystem.Examples- plants and white-tailed deer.
27 Temperature forests Clayton welch 4.4Temperature forestsClayton welch
28 Conifers Conifers produce seed bearing cones. They have leaves shaped like needles.Waxy substance reduces water loss.Soils are rich in humus, formed from decaying leaves and other organic matter.
29 Abiotic factors Cold to moderate winters. Warm summers Year round precipitationFertile soils
30 Plant life- Deciduous trees. Biotic factorsPlant life- Deciduous trees.Animal life- Animals cope with changing weather others migrate to warmer climates.Animals that do not migrate may use camouflage to escape predators in the winter when bare trees leave them exposed