2 What Biome am I? Located near the equator Over 200 cm rain each year Warm temperatures, lots of sunlightLots of vegetation of plants and animalsBiotic factors include large trees that form canopies, parrots, many insects, leopards, etcPoor soil qualityTemperature, rain, soil quality and amount of sunlight are biotic or abiotic factors?Vegetation, and animal diversity is biotic or abiotic factor?
4 Tropical Rainforest Typically found near the equator Receives more than 200 cm of rain annuallyTemperatures typically fall between 20oC and 25oC for the entire yearAs many as 50% of all the world’s animal species may be found here
5 What Biome am I? Located between poles and equator Very few trees with lots of grassesMost fertile soil of all biomesTemperatures between degrees CPrecipitation between cmAnimals include antelope, bison (US Buffalo), prairie dogs, groundhogs
7 GrasslandBecause of the dry climate, trees are found only near water sources such as streamsUsually receives between 50 and 90 cm of rainfall each yearSummer temperatures can reach up to 38oC, and winter temperatures can fall to –40oC
8 What Biome am I? Located at the poles Less than 25 cm rain per year Temps range from degrees CHas a layer of permafrostAnimals include migrating birds in summers, polar bears, reindeer
10 Tundra Means treeless or marshy plain Characterized by permafrost – permanently frozen soil starting as high as a few centimeters below the surface – which severely limits plant growthWinter temperatures average –34oC while summer temperatures usually average below 10oCLow precipitation (15–25 cm per year) but ground is usually wet because of low evaporation
11 What Biome am I? Located near the equator Less than 25 cm rain per yearPoor soil qualityTemperatures between -15 to 38 degrees CPlants such as cactusesAnimals such as snakes, lizards, rats and scorpionsWhat are the biotic and abiotic factors that make up this biome?
13 Desert Typically found between 25o and 40o latitude Receives less than 25 cm of rain each yearTemperatures typically range between 20oC and 25oC but some extreme deserts can reach temperatures higher than 38oC and lower than –15oC
14 What Biome am I? Located between equator and poles Forests have many deciduous trees that lose leaves in fallFertile soilTemperatures range from -40 to 20 degrees CRainfall between 30 to 90 cmAnimals include foxes, bears deer, squirrels
16 Temperate Deciduous Forest Moderate climateMost trees will lose their leaves in the winterTemperatures range between –40oC and 20oCAverages from 30 to 90 cm of precipitationWell developed understory
17 What Biome am I? Located at the poles Precipitation between 41-61 cm Temps range from degrees FAcidic soilTrees are mostly conifersAnimals are moose, bears, rabbits
19 Temperate Boreal Forest Also known as TaigaTypically found between 45o and 60o North latitudeCold climate with summer rainsVery few reptilesLimited understorySnow is primary form of precipitation (40 to 61 cm annually)
20 What Biome am I? Located near the equator Lots of grasses with a few trees mixed inBetween degrees FAbout 100 cm average rainfallAnimals include giraffes, zebra, lions, crocodiles and elephants
22 Tropical Savanna Grasslands with a few scattered trees Experience a wet and dry seasonHot temperaturesAnnual rainfall is between 50 and 127 cmMore species of grazing mammals than any other biome
23 What Biome am I? Located between poles and equator Cool winter, hot dry summersPoor nutrient rocky soilsPrecipitation between cmTemperatures between degrees FVegetation includes lots of shrubsAnimals include coyotes, mountain lions, jackal, jack rabbits
25 ChaparralFound between 32o and 40o latitude on the west coast of continentsReceives between 35 and 70 cm of rain, usually in the winterExtremely resistant to drought and weather events
26 ReviewWhy do tropical rain forests, and temperate forests have so much life?Why do deserts and the tundra have so little life?
27 Biosphere All life on earth Includes all of the ecosystems and biomes that we have talked about
28 BiodiversityThe degree of variation in life forms of a given species, ecosystem, or biome.Includes genetic variation within a species or populations of ecosystems
29 Examples of Biodiversity Tropical rain forest may have 300 species in square meters (hectre) of landA temperate forest in the US may only have 30 speciesBiodiversity increases towards the equator.
30 Why is Biodiversity important? All life is interdependentAnimals need plants to surviveFlowering plants need animals for pollinationPlants need decomposers that break down decaying matter into nutrientsIf one species is lost from an ecosystem it has a cascade effect on the rest of the ecosystem
31 Bees Honeybees are especially important for maintaining biodiversity Honeybee populations are declining which impacts our food sourcesImportant for pollination of plants around the world
32 Why is Biodiversity important? StabilityA single pest may be able to destroy an entire corn fieldA single pest is not likely to destroy all plant life in a rainforestScattered plant or animal life is less likely to be destroyed due to the genetic variation
33 Loss of BiodiversityLoss of a single species can domino effect the entire ecosystem, which can destroy itSpecies such as frogs are becoming endangered and could become extinct
34 Domino effectRemoving sea otters from kelp forest on west coast have shown to disrupt the entire ecosystem
35 Polar BearsBecause of global warming Polar Bears are endangered of becoming extinct