Review View Page Layout Formulas Data Help File Home Insert PROTECTED VIEW Be careful-files from the Internet can contain viruses. Unless you need to edit, it's safer to stay in Protected H24 D E G Table 2.2 Age-class distribution, total population size for Brook Trout (Salvelinus fontinalis) in the Eastern United States from 1949-1962 as well as average survivorship (P) and age-specific fecundity (F) for each age class (x). Data from McFadden (1961). Age Class Year 0 2 3 Total 4 1949 4471 2036 287 14 6808 1950 3941 2013 304 13 6271 6 1951 4287 851 265 17 6420 7 1952 5033 1763 261 16 7073 8 1953 5367 1637 175 13 7292 9 1954 6325 2035 234 13 8607 10 1955 4235 2325 383 24 6967 11 1956 4949 1612 392 52 7005 12 1957 5703 1796 309 34 8842 13 1958 5097 2653 355 28 8133 14 1959 4038 2395 685 68 7186 15 1960 5057 2217 473 48 7795 16 1961 2809 2017 409 23 5258 17 1962 5037 1574 433 39 7083 18 1963 5106.62 2140.73 102.03 37.24 7386.61 Projections forward using density-dependent factor 19 1964 4234.98 2170.31 53.84 8.77 6467 9 P.* = P, (1-(n,/2500)) 20 1965 3632.33 1799.86 50.09 4.63 5486.91 21 1966 3002.89 1543.74 88.21 4 31 4639.15 22 1967 2811.54 1276.23 103.34 7.59 4198.7 23 1968 2536.36 1194.9 109.33 8.89 3849.48 24 1969 2464.1 1077.95 109.16 9.4 3660.61 25 1970 2296.26 1047.24 107.3 9.39 3460.19 26 1971 2240.8 975.91 106.5 9.23 3332.44 27 1972 2128.14 952.34 104.12 9.16 3193.76 28 1973 2079 88 904.46 103.17 8.95 3096.46 29 1974 2000.84 883.95 101.02 8.87 2994.68 30 1975 1958.13 850.36 100 8.69 2917.18 31 1976 1900.24 832.2 98.2 8.6 2839.24 32 1977 1862.76 807.6 97.16 8 44 2775.96 33 1978 1818.62 791.67 95.67 34 8.36 2714.32 1979 1786.05 772.91 94.67 8.23 35 1980 1751 17 759 07 93 44 2661.86 Trout Data 1949 to 2012 8 14 2611 82 ReadyAge-Structured Fish Populations Below is a set of data taken from the literature that gives the age-class composition of a population of Brook Trout (Salvelinus fontinalis) in the Eastern United States. Today, you will use the output of the Leslie Growth Model that projected the population through time using the average survivorship for each age class (P.) and age-specific projected fecundity (F.) in Table 2.2 and the density dependent PI") Table 3.2 Age-class distribution, total population size for Brook Trout (Salvelinus fontinalis) in the Eastern United States from 1949-1962 as well as average survivorship (P) and age-specific fecundity (F) for each age class (x). Data from McFadden (1961). Age Class Year Total 1949 1471 2036 287 14 6808 1950 3941 2013 304 13 6271 1951 4287 1851 265 17 6420 1952 5033 1763 261 16 7073 1953 5367 1637 175 13 7292 1954 6325 203 5 234 13 8607 1955 4235 2325 383 24 6967 1956 4949 1612 392 52 7005 1957 6703 1796 309 34 8842 1958 5097 2653 355 28 8133 1959 4038 2395 685 68 7186 1960 5057 2217 473 48 7795 1961 2809 2017 409 23 5258 1962 5037 1574 433 39 7083 1963 0.425 0.175 0.086 0 F 0 1.49 5.11 14.0770 LAB 3 - Population Dynamics On a separate page at the end of your assignment: 4. Reflect on and write a 2-4 sentence response to the following questions and statements using examples from your assignment as support. Be honest with yourself and us, it is okay to be unsure, positive, or have other thoughts about your work. The more honest you are the more you will get out of our feedback. Remember, we are not looking for anything specific, please do not write what you think we want to hear. this will not benefit you. This section is not graded but if absent or incomplete will result in a 5% deduction on A3 Final. a) Do you agree or disagree with the following statements and why? i. My figure and caption meet publication standards according to the guidelines. ii. I effectively used the 5 questions and QC statement format in my summary paragraph. ifi. I understand the assumptions of the density-dependent model, know how to apply it and interpret the output. SAVE A3 Draft as a Word document for future labs but SUBMIT it as a PDF document in its Brightspace dropbox 48 hrs before your next lab. This draft is not graded but if late or incomplete will result in a 5% deduction on A3 Final. You will receive general oral feedback on your draft by your TA and opportunities to ask questions on it during the next lab to improve the quality of your work, SUBMIT A3 Final as a PDE document in its Brightspace dropbox 48 hrs before your next lab. If A3 Final is not submitted by the deadline, it will be considered late and a 10% per day penalty will be levied (see the lab assignments section of the syllabus for more details)35 1980 1751.17 759.07 93.44 8.14 2611.82 36 1981 1723.06 744.25 92.5 8.04 2567.85 1982 1694.69 732.3 91.47 7.96 2526.42 1983 1670.47 720.24 90.61 7.87 2489.19 39 1984 1646.88 709.95 89.73 7.79 2454.35 40 1985 1625.99 699.93 88.96 7.72 2422.6 41 1986 1606.05 691.05 88.19 7.65 2392.94 42 1987 1587.97 682.57 87.5 7.58 2365.62 43 1988 1570.9 674.89 86.84 7.53 2340.16 44 1989 1555.2 667.63 86.22 7.47 2316.52 45 1990 1540.44 660.96 85.63 7.42 2294.45 46 1991 1526.75 654.69 85.09 7.36 2273.89 47 1992 1513.9 648.87 84.57 7.32 2254.66 48 1993 1501.91 643.41 84.08 7.27 2236.67 49 1994 1490.65 638.31 83.62 7.23 2219.81 50 1995 1480.11 633.53 83.18 7.19 2204.01 51 1996 1470.2 629.05 82.77 7.15 2189.17 52 1997 1460.9 624.84 82.38 7.12 2175.24 53 1998 1452.15 620.88 82.02 7.09 2162.14 54 1999 1443.91 617.16 81.67 7.05 2149.79 55 2000 1436.15 613.66 81.34 7.02 2138.17 56 2001 1428.83 610.36 81.03 2127.22 57 2002 1421.93 607.25 80.74 6.97 2116 89 58 2003 1415.41 604.32 80.46 6.94 2107.13 59 2004 1409.26 601.55 80.19 6.92 2097.92 60 2005 1403.44 598.94 79.94 6.9 2089.22 61 2006 1397.95 596.46 79.7 6.87 2080.98 62 2007 1392.74 594.13 79.48 6.85 2073.2 63 2008 1387 82 591.92 79.26 6.84 2065.84 64 2009 1383.16 589.82 79.06 6.82 2058.86 65 2010 1378 74 587.84 78.87 6.8 2052.25 66 2011 1374.56 585.97 78.68 6.78 2045.99 67 2012 1370.59 584.19 78.51 6.77 2040.06 68 P 0.425 0.175 0.086 O 69 F 1.49 5.11 14.07ASSIGNMENT 3 Be sure to follow the Assignment Format Guidelines and include a Title Page. A3 is worth an overall of 4% of your FINAL grade. Questions & Dataset Download the "Trout Data 1949-2012" Excel file from your A3 Dropbox. Using ecological theory from Boyce et al. (2010), determine the effect of phytoplankton declines on our trout stock by answering the questions below. 1. Beginning in 1949, graph the total population size over time. What type of growth is this population experiencing? In a summary paragraph (50s), describe what is happening to the population. 2. You will need to go back to the example you chose in PL-Q3 that best explains K as well as think about and understand how a natural population typically behaves to be able to fully answer this question. On a graph, what does a natural population reaching K look like relative to a modeled population? Does the modeled population (after 1962) reach K in your figure? What about the natural population (before 1962)? Is there more than one K on the graph? If not, explain why there is only one using your figure and ecological theory. If so, how much is the "new" K larger or smaller than the K before the model? Using concepts you are learning about population dynamics, explain how it is possible to have more than one K. Based on your figure, is the survival of the modeled population (after 1962) in jeopardy? What if it behaved like a real population? Be specific in your explanation and refer to your figure. What would happen to the population if we also opened a commercial fishery in 2012 where they continually harvest fish from the wild as food for humans? A commercial fishery takes fish from the wild and processes them to be sold for food, the fish are not captured and grown in captivity. Be sure to think about the goal of a commercial fishery for use as human food to understand which age class( es) they would target in the population. How would the fishing pressure affect the total population size and age structure? Would adding fishing pressure affect any life history characteristics (not sure what these are? Check the list in Concept 9.2 of your textbook)? If so. which ones and how? If not. why not? Be specific by referring to the data in Table 3.2 and your textbook