12 Hare de ty relative to 4 Quizzes 2 trols 8 0 Control Predators excluded Food added Predators excluded, food added Looking at the data above, what conclusion can you draw about the lynx/hare experiment? (select all that apply) Food is a factor in controlling hare population size. The effect of excluding predators and adding food in the same experiment is greater than the sum of excluding lynx alone plus adding food alone. Excluding lynx is a factor in controlling hare population size.
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- Kudu Scenario Kudu are an antelope species found in easterm and southerm Africa. Male kuou have dramatically spiraled homs, which makes them a target of trophy hunters. Begin by setting up the following parameters: k= 100, r= 0.26, N, = 10. Use the gear icon to adjust the min & max values of N, and k to 2 and 200, respectively. Set the max value oft to 50. 25. At what time ("T value) do kudu populations reach their carrying capacity, given these parameters? 28. What happens to the growth rate of a kudu population as it gets closer and closer to its carrying сарacity? 27. What sorts of environmental changes might cause k to increase in this environment? What might cause k to decrease? 28. Trophy hunters move into the area, leading to an increased death rate, which decreases the growth rate rto 0.13. Exolain how this change will impact the population growth patten. [Hint Look at when the population now reaches its carrying capacity, given this decrease in r. Compare your original curve…What does this information tell you abou the success of certain animals (large vs. small mammals, insects, etc) within an urban ecosystem?Thẻ graphs below represent h What can you conclude from the researcher's results? Cactus Corner Desert Valley 20 • Short horns O Long horns 0. 6. 12 12 Weeks Weeks The hypothesis that longer horns offer greater protection against predation is supported. • The hypothesis that longer horns offer greater protection against predation is NOT supported. The experiment is well designed, but the results are inconclusive about the hypothesis. The experiment is not well designed to test the hypothesis. MacBook Pro Surviving Lizards 20
- 1. Suppose that rabbits are the only prey and food supply of foxes, and that the predator-prey interaction follows Lotka-Volterra dynamics. The mortality rate of foxes in the absence of rabbits is 0.1 per week, and the intrinsic growth rate of rabbits in the absence of predation is 0.2 per week. The capture efficiency is 0.002, and the efficiency at which rabbit biomass is converted into fox biomass is 0.2. a. If there are 30 foxes in a population and 400 rabbits are present, the rate at which prey will be killed (consumption rate) is per week. b. If there are initially 30 foxes and 400 rabbits, the overall rate of change in the rabbit population will be: c. If there are initially 30 foxes and 400 rabbits, the net growth rate in the fox population will be: d. If the number of rabbits and foxes double, but the search efficiency stays the same, what will happen to the number of rabbits killed? Does it double, too?Survival (%) 100- 80- 60- 40- 20- 0-t T 2.1 ( T T T - 1.9 2 2.2 2.3 2.4 2.5 2.6 2.7 Log SVL (mm) Martin Wikelski and L. Michael Romero (Body size, performance and fitness in Galápagos marine iguanas, Integrative and Comparative Biology 43 [2003]:376-86) measured the snout-to-vent (anus) length of Galápagos marine iguanas and observed the percent survival of different-sized animals, all of the same age. The graph above shows the log snout-vent length (SVL, a measure of overall body size) plotted against the percent survival of these different size classes for males (dashed line) and females (solid line). Based on the figure above what type of selection for body size appears to be occurring in female marine iguanas? (A) balancing selection (B) disruptive selection C) stabilizing selection (D) directional selection (E) sexual selectionNeed help Please answer both.All it is one question. 1. List down and describe methods used for marking animals in population estimate studies? 2. What would be the effect of the following circumstances on your estimate of population size, P? Will your estimate be too high or too low in each of the following situations? 1. some animals lose their mark 2. marked animals have higher death rates 3. marked animals hide 4. marked animals are sluggish 5. immigration occurs
- question will save this response. Question 8 What does the Lotka-Volterra model simulate? O mutualistic relationships O predator and prey populations O Leibig's law of the minimum O parasitism risk A Moving to another question will save this response. f2 esc f7 2$ % & 2 # M(A) G = rN K – N) (В) K (C) (х-аxis) Question: What does the dotted line represent? O a. carrying capacity O b. plateau ability O c. log phase O d. lag phase (y-axis)Tuskless Females A bbhosted.cuny.edu NY My Guttman Bb Lab 11 - Ecology - 2021 Spring Term (1).. Bb Take Test: Lab 11B - Tusklessness in Ele... Bb Lab 11 - Ecology - 2021 Spring Term * Question Completion Status: Path: p Words:60 QUESTION 7 The civil war in Mozambique ended in 1992. Based on the data above, predict whether the percentage of tuskless females born after the civil war was: A. more or less than the percentage of tuskless females that were civil war survivors (bar on the right) B. more or less than the percentage of tuskless females in populations with less poaching (bar on the left) Explain your reasoning. OL Less Poaching Heavy Poaching 09 All Ages Civil War Survivors (uea 0 For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). TTTT Paragraph -Font fam -Font sizs 553 A) More than percentage of tuskless females that were civil war survivors because they endured a higher level of 50% poaching
- 1. Giving up density is a way to measure the conditions under which an animal is willing to experience risks in feeding. One way to approach an GUD experiment is to mix food in with inedible particles, then to measure what percent of the mix is food when an animal stops collecting or eating food. How could this method be used to study optimal foraging conditions? 2 wk1. Based on the graph, determine the population of carabao in: i. 4 years: 2. Based on the graph, determine the population of carabao in: ii. 5 years:3. Based on the graph, determine the population of carabao in: iii. 6 years:4. What is the maximum carrying capacity of carabao in the given ecosystem? 5. How many years did it take for the carabao to reach its carrying capacity? Explain your answerinate S_Q1_Science_Biology_2022-2023 Question 1 200 TIDO D D BO 70 60 550 40 30 20 10 OF 0 5 X me graph shows the growth of the P caudatum population when it is grown separately. P. caudatum Alone 250 200 150 5 V 10 Time (days) Q Zoom 10 Time (days) 15 15 The graph shows the growth of the P. aurelia and P. caudatum populations when they are grown together. Both Species Grown Together 20 2022 Illuminate Education TM, Inc. Question 1 Which statement is supported by the graphs? A A B C D Accessibility Tools Signed in as: Zavion Ma Q Review/✔ Finish T ABG P. caudatumrand P. aurelia competed equally for resources. P. aurelia and P. caudatum did not compete for resources. P. aurelia was better able to compete for resources than P. caudatum P. caudatum was better able to compete for resources than P. aurelia Z