logging in or signing up Ecology-PATEL aSGuest137262 Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Copy Does not support media & animations WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 28 Category: Entertainment License: All Rights Reserved Like it (0) Dislike it (0) Added: June 13, 2012 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... Premium member Presentation Transcript Ecological Principles: Ecological Principles P.MEGARAJ PATELObjectives: Objectives Define Ecology Compare and contrast biotic and abiotic factors Describe the three types of symbiosisECOLOGY: ECOLOGY is the study of the interactions among organisms and their environment studied by an ecologistPowerPoint Presentation: An organism’s surroundings Composed of living ( biotic ) and nonliving ( abiotic )things Biotic Factors: humans, plants, birds, fungi , bacteria, protists Abiotic Factors: water , light, temperature , air, soilPowerPoint Presentation: Describes the associations that organisms have with other organisms of a different species within the environmentSymbiosis: Symbiosis A relationship between organisms in which at least one of them benefits Three types of symbiosis in ecosystems are mutualism, commensalism , and parasitism .Mutualism (+, +): Mutualism (+, +) Both species benefit from being in relationship with one another ex. honeybee & flowerCommensalism (+, 0): Commensalism (+, 0) One organism benefits while the other is unaffected (neither helped nor harmed) Ex. robin in a treeParasitism (+, -): Parasitism (+, -) One organism benefits at the expense of the other One organism benefits, other harmed but not not killed Example: deer tick on a deerPredation (+, -): Predation (+, -) one organisms benefits by hunting , killing , and feeding on another organism AKA predator – prey relationship fox & rabbitPowerPoint Presentation: predator = organism that hunts, kills, and feeds off another prey = organism that is hunted & killedCompetition: Competition Occurs when organisms in the same ecosystem are competing with each other for resources such as food, water, sunlight, and living spacesObjectives: Objectives Describe plants and animals found in various biomes Identify the biome that we live inBIOMES: BIOMESPowerPoint Presentation: A large region that contains similar plant and animal ecosystems and is characterized by certain climate conditions. Biomes can be terrestrial (land) or aquatic (water).Terrestrial Biomes: Terrestrial BiomesTemperate Deciduous Forest: Temperate Deciduous Forest Trees ( birch, oak, maple, elm ) lose leaves in fall Animals such as bears, deer , rabbits, squirrels , & many species of birdsConiferous Forest: Coniferous Forest Cone shaped trees (fir, pine, spruce) Moose , bears, lynxes wolves Snow covered ground during long wintersPowerPoint Presentation: Made up of tall trees with broad leaves that form a dense canopy of vegetation Animals include a wide variety of snakes , lizards , colorful birds , and many kinds of monkeysGrassland: Grassland Made up of grasses & plants that produce colorful flowers Called a prairie in U.S.PowerPoint Presentation: Has rich, fertile soil Well suited for growing crops Animals include bison, mice, and prairie dogsDesert: DesertPowerPoint Presentation: Arid or dry Very little yearly rainfall Vegetation sparse , consists of plants like cacti Animals include snakes, lizards , and jackrabbitsTundra: TundraPowerPoint Presentation: Very cold conditions Very little vegetation Contains permafrost (permanently frozen soil located underneath topsoil Animals include musk oxen & wolvesAquatic Biomes: Aquatic Biomes Aquatic biomes can be freshwater or marinePowerPoint Presentation: Freshwater biomes include rivers, streams, lakes, ponds, and wetlands Wetlands are land areas that remain wet for all or part of the year. They include swamps & marshesPowerPoint Presentation: O ceans have 4 distinct zones: intertidal neritic oceanic benthicPowerPoint Presentation: Intertidal – where ocean meets the land. Animals include shellfish & birds Neritic – numerous fishes, sea turtles, squids, coral reefsPowerPoint Presentation: Oceanic – open ocean; most of zone cold & dark; not much life. Fishes & whales Benthic – ocean floor; bottom feeder animals like starfish, anemones, sponges You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.