© 2004 Plano ISD, Plano, TX Introducing

© 2004 Plano ISD, Plano, TX the study of the relationships between biotic and abiotic factors in environments eco (G) root home, abode ecoclimate ecosystem ecotourism log, -o, y (G) suffix study of zoology epidemiology climatology Ecology Eco logy

© 2004 Plano ISD, Plano, TX Biotic Factors Bio bio(s), bio(t) (G) root life include plants, animals, fungi, microorganisms biology biostatistics biography biotechnology biosphere biomechanics biotic biofeedback

© 2004 Plano ISD, Plano, TX Examples of Biotic (living) Factors

© 2004 Plano ISD, Plano, TX Abiotic Factors include air, water, soil, temperature, wind, source of energy (usually sun) A A a, an(G) prefix not, without atoxic amoral abiotic

© 2004 Plano ISD, Plano, TX Examples of Abiotic (non-living) Factors

© 2004 Plano ISD, Plano, TX a large geographic area with specific plant and animal groups. The climate and other abiotic factors determine what type of biome exists. a large geographic area with specific plant and animal groups. The climate and other abiotic factors determine what type of biome exists. Biome Biome

© 2004 Plano ISD, Plano, TX desertdesert grasslandgrassland tropical rain forest deciduous forest coniferous forest tundratundra Major Biomes of the World oceanocean

© 2004 Plano ISD, Plano, TX What biome do we live in? Have you lived in another biome?

© 2004 Plano ISD, Plano, TX Levels of Organization smallest unit of living things group of similar cells organized to work together group of different kinds of tissues working together group of organs working together one individual living thing all organisms of the same kind living in one area all interacting populations in an ecosystem all living and nonliving things interacting within a certain area large region with typical plants and animals that includes several ecosystems cell

© 2004 Plano ISD, Plano, TX 1.How do abiotic factors change as the seasons change? 2.How do biotic components change from summer to winter?

© 2004 Plano ISD, Plano, TX Ecosystem A unit, small or large, that consists of biotic factors (plants, animals, micro- organisms functioning together with abiotic factors (precipitation, sunlight, soil).

© 2004 Plano ISD, Plano, TX do not necessarily have clear boundaries due to biotic (living) and abiotic (non-living) changes Ecosystems BioticBioticAbioticAbiotic migration, seed dispersal flood, erosion, drought can change daily as things move from one ecosystem to another

© 2004 Plano ISD, Plano, TX interact with each other in complex ways Biotic Factors : also interact with abiotic factors in the ecosystem Predator Prey and competitionPredator competition Plants and animals dependent upon water, minerals, temperature, light such as

© 2004 Plano ISD, Plano, TX 1.How does temperature affect your life? (abiotic on biotic) 2. How do predators affect other living systems? (biotic on biotic)

© 2004 Plano ISD, Plano, TX Building from smaller to larger, many ecosystems can be connected to form an An Ecoregion is a unit of land or water that contains a definable group of species, natural communities, and environmental conditions. Dallas is a part of the Blackland Prairie ecoregion. You will be studying your ecoregion this year! Ecoregion.

© 2004 Plano ISD, Plano, TX There are ecoregions in Texas Can you find our Ecoregion? What color?

© 2004 Plano ISD, Plano, TX Ecoregions together make up what?? The difference between “ecoregion” and “biome” is one of scale. Biomes are larger and include several ecoregions.