Biology Chapter 50 Summary
Chapter 50
Ecology is the scientific study of the interactions between organisms and their environment.
Concept 50.1 Ecology is the study of interactions between organisms and the environment
Ecology and evolutionary biology are closely related sciences. * Ecology has a long history as a descriptive science. * Modern ecology is also a rigorous experimental science. * Ecology and evolutionary biology are closely related sciences. * Events that occur over ecological time (minutes to years) translate into effects over evolutionary time (decades to millennia). * For example, hawks feeding on field mice kill certain individuals (over ecological time), reducing population size (an ecological effect), altering the gene …show more content…
* In lakes, the littoral zone is the shallow, well-lit water close to shore. * The limnetic zone is the open surface water. * Wetlands are areas covered with sufficient water to support aquatic plants. * Wetlands include marshes, bogs, and swamps. * They are among the most productive biomes on Earth and are home to a diverse community of invertebrates and birds. * Because of the high organic production and decomposition in wetlands, their water and soil are low in dissolved oxygen. * Wetlands have a high capacity to filter dissolved nutrients and chemical pollutants. * Humans have destroyed many wetlands, but some are now protected. * Streams and rivers are bodies of water moving continuously in one direction. * Headwaters are cold, clear, turbulent, and swift. * They carry little sediment and relatively few mineral nutrients. * As water travels downstream, it picks up O2 and nutrients on the way. * Nutrient content is largely determined by the terrain and vegetation of the area. * Many streams and rivers have been polluted by humans, degrading water quality and killing aquatic
Ecology is the scientific study of the interactions between organisms and their environment.
Concept 50.1 Ecology is the study of interactions between organisms and the environment
Ecology and evolutionary biology are closely related sciences. * Ecology has a long history as a descriptive science. * Modern ecology is also a rigorous experimental science. * Ecology and evolutionary biology are closely related sciences. * Events that occur over ecological time (minutes to years) translate into effects over evolutionary time (decades to millennia). * For example, hawks feeding on field mice kill certain individuals (over ecological time), reducing population size (an ecological effect), altering the gene …show more content…
* In lakes, the littoral zone is the shallow, well-lit water close to shore. * The limnetic zone is the open surface water. * Wetlands are areas covered with sufficient water to support aquatic plants. * Wetlands include marshes, bogs, and swamps. * They are among the most productive biomes on Earth and are home to a diverse community of invertebrates and birds. * Because of the high organic production and decomposition in wetlands, their water and soil are low in dissolved oxygen. * Wetlands have a high capacity to filter dissolved nutrients and chemical pollutants. * Humans have destroyed many wetlands, but some are now protected. * Streams and rivers are bodies of water moving continuously in one direction. * Headwaters are cold, clear, turbulent, and swift. * They carry little sediment and relatively few mineral nutrients. * As water travels downstream, it picks up O2 and nutrients on the way. * Nutrient content is largely determined by the terrain and vegetation of the area. * Many streams and rivers have been polluted by humans, degrading water quality and killing aquatic