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In which year was the deer starvation greatest? Using the data presented and your knowledge of ecology, explain why so many deer died.
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- Population size increases whena. the sum of birth rate and death rate exceeds the sum ofimmigration and emigration.b. the sum of birth rate and immigration exceeds the sum of deathrate and emigration.Figure 37.20 Opportunistic and Equilibrium Species:A Summary.• High reproduction rate• Many ospring• Each ospring receives littleparental care• Low survival rate for juveniles• Early reproductive maturity• Type III survivorship curve:Opportunistic life history Equilibrium life history• Low reproduction rate• Few ospring• Each ospring receivesextensive parental care• High survival rate for juveniles• Late reproductive maturity• Type I survivorship curve:AgeSurvivorsAgeSurvivors764 UNIT SEVEN The Ecology of Lifehoe2420X_ch37_748-765.indd 764 12/15/16 11:45 PMc. the sum of birth rate and emigration exceeds the sum of death rateand immigration.d. the sum of death rate and immigration exceeds the sum of birthrate and emigration.87)The life table below is for a species of lizard. Use it to answer the questions below. It can be copied and pasted in excel or downloaded here. What is the generation time for this species (rounded to the closest full number)? x nx bx 0 678 0 1 102 0 2 31 0 3 19 10 4 14 12 5 12 12 6 10 14 7 10 10 8 8 11 9 7 10 Question 87 options: 5 years 12 years 3 years 10 yearsThe number of currently described species on the planet is about ________.a. 17,000b. 150,000c. 1.5 milliond. 10 million
- 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.Using the above graph, what is the approximate percent of the population in the US and Kenya that is under the age of 15? (number order represents US, Kenya) A24,26 B12,28 C32,62 D16,36Date Juncos previously banded (r) Captured, already banded (r) Captured, new individual Total number captured on that date (s) Estimated population size (N) 11-Jan 39 14 9 16 - Jan 48 4 7 23 - Jan 55 2 8 30 - Jan 63 8 2 6 - Feb 65 6 5 Complete the table by following the Mark Recapture Formula.
- The following text has six gaps, which are indicated by The Roman numerals (I, II, III, IV, V, VI). Fill in these gaps by correctly matching the appropriate words/terms.Namaqualand daisies don't have populations with ___________ (I) generations. The species is regarded as a/n _________ (II) strategist, and individuals produce __________ (III) numbers of offspring that have a relatively ________ (IV) size. The probability of an individual not surviving to middle-age is relatively ___________ (V), and the age-specific survival rate of young individuals is relatively ___________ (VI). A. overlapping B. large C. small D. high E. r F. low 1. I 2. II 3. III 4. IV 5. V 6. VIThe data below represent a cohort of organism “X”, tracked from birth to death. Time period* Number alive at start of period Proportion surviving at start of time interval Deaths during period Rate of mortality during time period "0-1" 432 1.00 390 0.90 "1-2" 42 0.10 29 0.69 "2-3" 13 "3-4" 11 "4-5" 10 "5-6" 9 "6-7" 7 "7-8" 3 "8-9" 0 * Numbers are reported over eight equal sized time periods – these could represent days, weeks, months or years. 1.Complete the table by recording survivorship (proportion alive at the start of the time period), the number of deaths and the mortality rate for each time period. For each column you need to ensure you indicate how you performed your calculation (e.g. show one example calculation or provide a formula). 2.Plot a survivorship curve for species X using semi-log graph paper.Remember that survivorship is, by convention, plotted as a proportion of…The data below represent a cohort of organism “X”, tracked from birth to death. Time period* Number alive at start of period Proportion surviving at start of time interval Deaths during period Rate of mortality during time period "0-1" 432 1.00 390 0.90 "1-2" 42 0.10 29 0.69 "2-3" 13 "3-4" 11 "4-5" 10 "5-6" 9 "6-7" 7 "7-8" 3 "8-9" 0 * Numbers are reported over eight equal sized time periods – these could represent days, weeks, months or years. a) Complete the table by recording survivorship (proportion alive at the start of the time period), the number of deaths and the mortality rate for each time period. For each column you need to ensure you indicate how you performed your calculation (e.g. show one example calculation or provide a formula). b) Plot a survivorship curve for species X using semi-log graph paper. A template sheet has been uploaded to the Problem Set 2 folder. Remember…
- Draw a graphic for world population from 1 million years up to 2015can you draw the survivalship curve of this data? use digital graphing please day animal survivors 0 50 2 44 4 39 7 26 9 24 11 23 14 23 16 23 18 20 21 20https://media.hhmi.org/biointeractive/click/lionfish-invasion/introduction.html Now you'll tie together what you've learned. Read over the information on what's happening with the study of lionfish (you can ignore the questions on this page). Answer the question here on Canvas. 18)Based on what you've learned about the invasive lionfish population in the Atlantic, and the various types of factors that may limit population growth, which ONE factor (intraspecific competition, interspecific predation, disease & parasites, social behavior) do you think would be the MOST limiting? Why?