Explain how and why the percent of consumed Net Primary Productivity (NPP) varies greatly when comparing the consumption of primary producers in lakes, grasslands, and forest. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIU Paragraph Arial
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Population Growth
R and K Selection
R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.
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- Question: The Jack Rabbit population of the Bowl grows from 49 to 1004 individuals over 10 years. a) Grounds Keepers decide to examine the Jack Rabbit population around the Education building. Initial surveys find 23 individuals. They hire you to predict the size of the Education population in 5 years based on the observations in the Bowl. The following formulas are available for use:QUESTION 3 (a) What is resource partitioning? (b) Fully describe an excellent example of resource partitioning. Samsung Triple Camera Shot with my Galaxy A03sQUESTION 28 Countries that are considered less-developed have more land that is protected from development than other countries, where development prevents the protection of land. True False
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- Question 48 Define ecological efficiency, including ranges of ecological efficiencies in nature. The proportion of energy in the biomass of the primary producers of an ecosystem, ranging from 50-80%. The percent transfer of energy from the top of the food web to the bottom, ranging from 1-3%. The percentage of energy in the biomass of herivores transferred to decomposers, ranging from 20-50%. The percentage of energy in the biomass at a lower trophic level that is transferred to the next higher trophic level, ranging from 5 to 20%.Question 1: In the land between the lakes, Elk and Bison Prairie, we currently have 125 bison and 15 elk. These species are known to compete for some but not all of their resources. We are able to determine that the carrying capacity of the bison K1 is 200 and that the alpha (competition coefficient) is 4. The carrying capacity for Elk (K2) is 100 and the beta (competition coefficient) is 1. Part a) At what population size of elk will the isocline of the bison intersect (K1/alpha)? Round up to the nearest whole numberQuestion:- Using the following terms to describe a grassland ecosystem NPP ,GPP ,Re , primary production, secondary production, trophic efficiency, grazer food web, detrital food web, and consumption efficiency. Simple definitions will not receive full credit
- QUESTION 37 Overgrazing is a type of human activity that has a major impact human on grassland ecosystems. True FalseQUESTION 3 Below are 12 statements related to an ecological succession. Read through the list and place the numbers in thg text boxes, in the appropriate section of the Venn diagram. 1. 2. No previously existing life. 3. Occurs after a storm. 4. A climax community eventually forms at the end. 5. Triggered by a fire 6. Starts as the result of a receding glacier 7.. Previously existing life in habitat. 8. Features pioneer species. 9. Starts in a lake with sediment and a community. 10. Starts on bare rock. 11. Pioneer organisms form soil. 12. Happens relatively slowly. 13. Happens relatively quickly Primary succession Secondary successionQuestion 49 Communities that lie at increasing elevations exhibit the same changes as seen in ecosystems that evolve over time in communities throughout different seasons across the United States from east to west in biomes at decreasing latitudes.