Chapter 8 Community Ecology: Structure‚ Species Interactions‚ Succession‚ and Sustainability I. Appearance and Species Diversity A. The structure or spatial distribution of a community or ecosystem can be described by: a. Physical Appearance : relative sizes‚ stratification‚ and distribution of its population and species b. Species Diversity or Richness : the number of different species c. Species Abundance : the number of individuals of each species d. Niche Structure : the number of ecological
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THE CONCEPT OF SPECIES What are species? Species are the basic taxonomic units of biological classification. This grouping of organisms of "like kind" into discrete and stable units has been traced at least from the time of Plato and Aristotle. The term derives from the Latin "specere" (to look at‚ to behold)‚ with the meaning of "kind‚“ "quality‚" "appearance‚" "shape‚" or "a peculiar sort.“ In the past‚ species were classified according to their shape. Carl Linnaeus (1707-1778)‚ the
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Invasive Ductal Carcinoma‚ sometimes known as Infiltrating Ductal Carcinoma is a type of breast cancer. I picked this cancer because my aunt was diagnosed with it a couple years back. Any type of breast cancer normally starts in the inner lining of the milk ducts or the lobules that supply them with milk. A breast cancer that started off in the lobules is known as Lobular Carcinoma. Whereas‚ breast cancer that starts off in the ducts are known as Ductal Carcinoma. IDC is a ductal breast cancer because
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Invasive cardiology deals with working on the heart. They deal with a lot of heart attack and I learned that the intensive cardiologists can fix a heart attack within fifteen minutes and can save a life. Heart attacks are the number one cause of death in America and invasive cardio is changing that. When I was two I had ventricular septal defect and I had to have open heart surgery. Invasive cardio can fix murmurs in people by going up either the arm or leg and there will be no scar from where the
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I got the chance to observe a couple of invasive Cath-lab procedures on February 23‚ 2016. I was extremely nervous upon arrival‚ primarily because I wasn’t quite sure what to expect mentally. Immediately at 0630‚ invasive cardiac unit has a quick huddle for important announcements and a brief explanation for the procedures for this specific day. They made an announcement about having twenty scheduled procedures for the day and that it was going to be a slow a day; since they typically schedule around
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Casey Sullivan Mrs. Stephens English 1101 23 April 2013 Dangers of Invasive Pythons in Florida To analyze the dangers posed by pythons in Florida‚ one looks at the information on case study‚ location‚ statistics‚ dangers to the ecosystem‚ methods of control and laws. It is a fact that large pythons do pose a major threat to numerous aspects of life. Wildlife biologist Skip Snow states‚ “We’re bringing them into the country under the idea that they’re all innocent until proven guilty” (Kessler
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Juliet C. Rosauro BSBA-MM 2-4D Loss of Biodiversity: How many species are endangered ? ENDANGERED SPECIES: has so few individual survivors that the species could soon become extinct overall or most of its natural range. Characteristics of Extinction-Prone Species: -Low reproductive rate -Specialized feeding habits -Feed at high trophic levels -Large size -Limited or specialized nesting or breeding areas -Found in only one place or region -Fixed migratory patterns -Preys on livestock
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Endemic Species Derek Bunkofske ENVS 201 Conservation Ecology Charles Cole Buena Vista University Endemic Species I chose option 2 for the workshop three assignment which involves defining endemic and finding two endemic species and describe them and their location‚ and what risks they have due to their location and their specific needs. Determine a region with a high percentage of endemic species and a region with a low percentage of endemic species. Explain the specific reasons that
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Species Interaction * The relationships between two species in an ecosystem. * The interactions between two species need not be through direct contact. Species may affect each other through intermediaries such as shared resources or common enemies. Major factors in evolution and adaptation: * Predation * Competition for scarce resources Terminologies: * Habitat – the actual physical location where a species lives. * Conditions – physical or chemical attributes of the
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A keystone species is defined as one that has a critical role in determining and maintaining the overall relationship of plants and animals within an ecosystem. If a keystone species is removed or declines‚ the nature of the ecosystem will change dramatically. Sea Otters — A Classic Keystone Species The classic tale of a keystone species is that of the sea otter‚ which was once found in abundance along the West Coast of North America. The story goes something like this: 1. European and
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