Factors Affecting Population Growth Types of Population Growth Density-dependent limiting factor Density- independent limiting factor Logistic Population Growth Exponential Population Growth
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Choose one factor from what's listed above and explain how it affects population growth in an ecosystem.
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- There are particular factors that quantitatively influence population growth. Choose the correct factor that is being described (mortality, natuality, immagration, emigration) 1. The number of individuals that leave the population; can be due to aniotic factors (e.g., escape from fire, drought, flood, or climate change) or biotic factors (e.g., increased competition). __________________ 2. Number of births; tend to increase with food supply and decrease with competition _____________________ 3. Death; maybe due to kill-off (predation) or die-off (disease, starvation, or exposure) ___________________ 4. The number of individuals entering the population from outside; can be due to abiotic factors (e.g., escape from fire, drought, flood, or climate change) or biotic factors (e.g., increased competition) __________________Explain the stages in the population growth curve and its practicalimportance.Explain how the percentage of undernourished peopledecreased from 2007–2009 to 2010–2012 while thenumber of undernourished people stayed roughly the same.
- What are the two key concepts for this section? Listthree variables that affect the growth and decline ofhuman populations. How can we calculate the population change of an area? Define the total fertilityrate (TFR). How has the global TFR changed since1955? Summarize the story of population growth inthe United States. List six changes in lifestyles thathave taken place in the United States during the 20thcentury, leading to a rise in per capita resource use.If a population growing exponentially double in size in 3 years,what is the intrinsic rate of increase® of the population?There are 10 people in age class 0, 10 in age class 1 and 5 in age class 2. Annual survival rates are S0=0.7, S1=0.5 and S2=0. The fecundities are F0=0, F2=1 and F2=5. What is the asymptotic population growth rate and it is reached after approximately how many years of population growth?
- Examine the characteristics of logistic growth by completing each statement. Not all choices will be used. *1 S exponential four competition follicular lag two J stable equilibrium Logistic growth results in a(n) curve when graphed. This growth curve exhibits time. The phase exhibits a slow growth rate due to the small number of individuals within the population early on. Exponential growth slows as increases during the deceleration phase. As the population size grows, the growth rate will accelerate due to biotic potential during what is called the growth phase. -shaped growth distinct phases over Finally, the carrying capacity is reached during the < Prey n for resources phase where birth and death rates are equalASAPType III survivorship curves are characterized by v [ Select ] low high death rates early in life and [ Select ] similar ones later in life Type I survivorship curves are characterized by [ Select ] death rates early in life and [ Select ] ones later in life
- identify and describe this type of population growth pattern. I put fluctuation growth pattern as it matched up with what i have previously learned but just wanted to double check. i know there is exponential growth, logistic growth, fluctuations and cycles when it comes to population dynamicsDeer Population on an Island 120 100 96 80 78 60 6아 40 36 20 TO 1 2 3 4 5 6 7 8 9 10 11 12 Number of Months Dear population 1-During which months was the growth of the deer population exponential? | 2-Give one possible reason why the population decreased after 5 months 3-What is the approximate carrying capacity of the island? 4-Explain "carrying capacity" 5-What type of density independent factors may cause the population to decrease (name 2)? 6-What type of density dependent factors may cause the population to decrease (name 2)? 7-Overall, do deer populations seem to exhibit exponential or logistic growth? Explain why Number of DeerWhich of the following are true for a population that is increasing according to the exponential growth equation? Choose all that are true. per capita birth rate is always greater than per capita death rate O r is constant O ris greatest when the population is greatest the population would continue to grow forever the population grows as if resources are never limiting growth doubling time is constant