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- Community 1 contains 100 individuals distributed amongfour species: 5A, 5B, 85C, and 5D. Community 2 contains100 individuals distributed among three species: 30A, 40B,and 30C. Calculate the Shannon diversity (H) for eachcommunity. Which community is more diverse?Whichstatement about organisms’ “niches” is false?a.The niche summarizes environmental factors influencing growth, survival,and reproduction of a species.b.The niche concept was developed by Joseph Grinnell and Charles Elton.c.The “fundamental” niche refers to physical, but notbiological, aspects of the environment.d.Interactions such as competition and parasitism may restrict the size ofan organism’s niche.e.In the laboratory, two species with identical niches are especially easyto maintain in a mixed culture.Biodiversity: Values & Threats 1. In terms of the number of species in various taxonomic groups, what types of organisms represent thegreatest diversity on our planet? And how do we know we’re not “done” cataloging all of life on earth? 2. When scientists try to estimate the number of species that actually exist on earth today, why is thefigure so variable? 3. Describe the global biodiversity patterns found in relation these parameters:Latitude Precipitation Elevation 4. In a well-crafted paragraph (5-7 descriptive sentences) specifically describe 4 key ways thatbiodiversity benefits mankind. Use examples to support each of your statements.
- How can a great biologicaldiversity protect an ecosystemfrom environmental damage?Why are less biodiverseecosystems at risk of sufferingdeep biological harm ifsubmitted to even smallchanges?INTRODUCTION: The environment may be changed by the things within the biotic community, as well as relationship between organisms and the nonliving environment. The carrying capacity of an ecosystem is the maximum number of organisms that an area can support over time. The density of a population may cause huge changes in the environment so that the environment becomes unstable for the survival of that species. Humans can mess up natural selection and have either a positive or negative effect. OBJECTIVES Graph data on the Kaibab deer population of Arizona from 1905-1939. Analyze the factors that caused the changes in the deer population. PROCEDURE: Before 1905, there was an estimated 4000 deer on almost 30,000 hectacres of land on the Kaibab Plateau in Arizona. The average carrying capacity of the land at that time was estimated to be about 30,000 deer. Being concerned about the low number of deer, President Theodore Roosevelt created the Grand Canyon National Game Preserve to…Explain how the three major types of deserts differin their climate and vegetation. Why are desert ecosystems vulnerable to long-term damage? How dodesert plants and animals survive? Explain how thethree major types of grasslands differ in their climateand vegetation. What is a savanna? Explain howsavanna animals survive seasonal variations in rainfall (Core Case Study). Why is the elephant an important component of the African savanna? DescribeTuy Sereivathana’s efforts to prevent elephants frombecoming extinct in Cambodia. Why have manyof the world’s temperate grasslands disappeared?Describe Arctic tundra and define permafrost?Explain how the three major types of forests differin their climate and vegetation. Why is biodiversityso high in tropical rain forests? Why do most soils intropical rain forests hold few plant nutrients. Whydo temperate deciduous forests typically have a thicklayer of decaying litter? What are coastal coniferousor temperate rain forests? How do most species…
- Assignment- Biodiversity and Conservation Enlist major In-situ & Ex-Situ conservation areas of the world Note: You may explain any 3 for both conservation methods, but with complete details Details include: (Name, Area or Country, Major Purpose )Anthropogenic Land-use. A. Human activity engineers landscapes into a highly heterogenous environments which according to the biodiversity global patterns (specie area curves) should drive up the number of species present in that landscape. Explain why this is not the case in human dominated landscapes. B. How does fragmentation drive decision making in land conservation? is there a better approach, over others, for anthropogenic landscapes? (hint -SLOSS) C. Why do mainland (continental islands) generally support greater diversity than oceanic islands? reason your opinion.nd biodiversity of sites in their own community, students performed a leaf litter lab where leaf litterwas collected from two sites: one from beneath the trees in an organically managed, commercial landscapeestablished one year ago and one from beneath the trees in a nearby nature preserve that have not been trimmed ormanaged in over twenty years. The students hypothesized that there would be more insect biodiversity in the leaflitter at the nature preserve than at the managed site. The leaf litter from each site was placed into a funnel with alight shone on the top to drive any insects out of the litter. Species were collected in an alcohol-filled containerbelow the funnel, and the species were identified using magnifying lenses and a key
- Create a food web and Trophic Pyramid for an identified ecosystem. Only drawings Requirements: Identify your ecosystem (desert, rainforest, artic, etc) Food Web - 1. at least 15 organisms 2. 5 levels represented 3. Correct arrow movement 4. Circle an organisms that you believe will have an impact of the web if it went extinct Pyramid - 1. draw and label 2. Use examples from the web for the levels 3. Include the rule of 10Given a hierarchy of ecological systems, indicate what attributes will be of interest toyou at each level as an ecologist. Provide a reason for each answer.i. Ecosystemii. Landscapeiii. Biomeiv. BiosphereYou are a defense attorney arguing in court for sparing a tropical rain forest from being cut down. Give your three best arguments for the defense of this ecosystem. Do the same for sparing a threatened coral reef. If you had to choose between protecting a tropical rainforest and a coral reef, which one would you select? Explain.Miller, G. Tyler. Environmental Science (p. 164). Cengage Learning. Kindle Edition.