: 13.0 POPULATION ECOLOGY (2 HOURS) Learning outcomes : 13.1 Population Growth (a) Explain biotic potential (r) and environmental resistance and their effect on population growth (b) Explain carrying capacity and its importance (c) Describe natality and mortality and their effects on the rate of population growth Learning outcomes : 13.1 Population Growth (d) Explain population growth curves (state the basic forms of growth curves) i. Exponential growth curve (human) ii
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NameVersilis Tyson Per Chapter 52 Reading Quiz 1. _True True/False Ecology is the study of both living and nonliving factors. 2. List three abiotic factors. _ 3. Fill in the blanks for the levels of ecological organization: → population → community → _ 4. _ 5. _ habitats. 6. _ → biosphere True/False Warm air rises‚ and cool air sinks. List one type (there are three we talked about!) of disturbance in ecological True/False When an ecologist studies a organism‚ they could
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matters and even microbes. The presence of water pollutants alters the amount of dissolved oxygen and biochemical oxygen demand. Dissolved oxygen (DO) is the amount of oxygen present in the aquatic system that is available for aquatic life and is essential for sustaining the plant and animal life in any aquatic system. The Biochemical Oxygen Demand (BOD) is a measure of the oxygen required by aerobic micro-organisms to bio-chemically oxidize the organic matter present in the waste and is expressed
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that in an organism water will cross a semi-permeable layer‚ tissues in cell walls in this case‚ from an area of lesser concentration of salts to an area of greater concentration (Campbell). To maintain the proper balance of salts and water in the aquatic environment fish‚ and all vertebrates‚ evolved to utilize a very specialized organ to solve this problem: The Glomerular/ Vertebrate Kidney (Washinton). In early evolving species‚ fish were beginning to live in freshwater systems after entire millennia
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stressed and the algae on which it depends for food and color die out‚ leaving an underlying white or bleached skeleton of calcium carbonate; this occurs because of increased water temperatures and runoff of silt from the land. 2. The two major aquatic life zones are saltwater (marine) and freshwater life zones. 3. Phytoplankton (plank plankton) are multiple types of algae; Zooplankton (animal plankton) are primary and secondary consumers which feed off phytoplankton (primary consumers) or other
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Marine Ecology Final Exam Review Difference between broadcast spawners‚ brooders‚ direct developers‚ lecithotrophic and planktotrophic larvae * Many marine organisms have a dispersal phase in their life history * Dispersal can occur as eggs‚ sperms‚ fertilized eggs‚ larvae‚ juveniles or adults * Many species only disperse as juveniles or adults * Other species take advantage of high density of water to disperse during very early life stages: eggs/sperm/fertilized eggs/larvae
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between ecosystem and ecology? Ecosystem is the physical system (an open system) in which the mutual interaction between biotic and aboitic component motored by the energy component is studied. While the Ecology is the science which study the interrelation between Abiotic (inorganic) and Biotic (organic) components as well as the interaction among the biotic component. To make it more clear‚ ecosystem is the fundamental unit of ecological study. Ecology vs Ecosystem Ecology and ecosystem are
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Discuss the ways in which distinctive ecologies can develop along routeways (10 marks) Routeways such as roads‚ railways and canals can provide habitats for many species of plant and insect life because they often act as protected areas in which ecological succession can occur. There are several ways in which this can happen. One way in which ecologies can develop along routeways is that plant seeds‚ e.g. Oxford ragwort or buddleia‚ that have become windborne can be transported along by cars or trains
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Cited: Dyer‚ Andrew. 2002. Burning and Grazing Management in a California Grassland: Effect on Bunchgrass Seed Viability. Restoration Ecology‚ v10(1): pp. 107-111. Gurevitch‚ Scheiner‚ Fox. 2002. The Ecology of Plants‚ Sinauer Assoc.‚ Inc.‚ Sunderland‚ MA. Lamont‚ B.‚ Groom‚ P.‚ Richards‚ M.‚ Witkowski‚ E. 1999. Recovery of Banksia and Hakea communities after fire in Mediterranean Australia – the role of species identity
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Taylor Weaver Eng 101 MWF 8am Deep Ecology v. Native American Beliefs Born in 1912‚ philosopher Arne Naess created the ideas‚ and term “Deep Ecology” to portray the ideas that nature itself‚ has greater value than just its use by human beings. He states that all life forms have the right to flourish and reach its full potential without human interference (First Principle). He expressed these ideas through the 8 principles of Deep Ecology‚ which‚ in my eyes are extremely similar to traditional
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