2 Life In A CommunityA community is alive, and each population or factor in it contributes something important to the life of the community.Various combinations of abiotic and biotic factors interact in different places around the world.
3 BiomesA biome is large group of ecosystems that share the same type of climax community.
4 Characteristics of Aquatic Biomes Marine Biomes- Ocean based biomes that is divided into two areas.Photic zones- Portion of earth that is shallow enough to allow sunlight to penetrate. These consist of coastal ecosystems.Examples are bays, rocky shores, sandy beaches, mudflats, and estuaries, and coral reefs.
5 Aquatic BiomesAphotic Zones- Includes the deepest and least explored areas of the ocean.
6 Aquatic BiomesEstuaries- a coastal body of water, partially surrounded by land, in which freshwater and saltwater mix.These areas are thick in grasses which trap lots of food and become fish nurseries.Example: The Arroyo
7 The Effects of TidesIntertidal Zones- The portion of the shoreline that lies between the high and low tides. These areas have high levels of sunlight, nutrients, and oxygen.
8 Freshwater BiomesPonds- lots of plant life due to its shallow water which allows plenty of sunlight t penetrate to the bottom of the pond.Lakes- Lots of plant life along the edge of the lake. This is due to shallow water and plenty of sunlight.Rivers and Streams- Contains lots of nutrients because of run offs, but very difficult for plant life to grow due to its constant flow.
9 Terrestrial Biomes These Land Biomes are based on Latitude Climate RainfallTemperature
10 TundraA treeless land with long summer days and short periods of winter sunlight.ConditionsNever rises above freezingPermanently frozen layerTopsoil so thin it can’t support lifeLifeGrasses, short shrubs and cushion plantsSmall mammalCaribou, Musk oxen, reindeer
11 Taiga A continuous belt of coniferous forest. Conditions Are somewhat warmer and wetterLong severe winter and short mild summersLifeAbundance of trees ( more food and shelter for life)Lynx, snowshoe hare, caribou, moose and migratory birds.
12 DesertThe driest biome, a region with sparse to nonexistent plant life.ConditionsLess than 25 cm of rainHot during day cold during night.LifeDrought resistant trees, shrubs and grassAnnual plants that germinate during sporadic rainfalls.Nocturnal animalsHawks, coyotes and owls.
13 GrasslandsLarge communities covered with rich soil, grasses and similar plants.Conditions25-75 cm of precipitationExperience dry seasonsSummers hot and winter coldLifeGrassesSome trees found near streams.Grazing animalsPrairie dogs, foxes, insects, birds, reptiles.
14 Temperate ForestAre dominated by broad leaved hardwood trees that lose their foliage annually.Conditionscm precipitation per yearTemperate weatherLifeDeciduous treesBears, rabbits, migratory birds.
15 Rain ForestsHave warm temperatures, wet weather, and lush plant growth. Located near the Equator.ConditionsAverage temp: 25ºCAverage rainfall: 400 cm per yearLifeDiverse Group of species due to an abundance of habitats.Three major storiesCanopy- tree topsUnderstory- below canopy and above groundGround- forest floor