Imagine we census a population of rabbits (assume females only) that has been occupying a barn for a few decades. On June 30, 2021, we census the population right after the reproductive season. We count 650 individuals and divide them into 4 age classes: 0-­‐6 months, 6 months-­‐1 year, 1 year to 1-­‐and-­‐a-­‐half-­‐years, and 1-­‐ and-­‐a-­‐half to 2 years. 350 are in the first age class, 175 are in the second, 90 are in the third, and 35 are in the fourth. We repeat the census at six months and find that none of the newborns (0-­‐6 months age class) from the first census have produced any offspring, and that 15% of them have died. We find that the 2nd age class had 75% survival and produced 500 offspring. We also find that only 10% of the 3rd age class has survived, and produced 180 offspring. All the rabbits in the 4th age died and produced zero offspring. (a) What is the life table for this population? (i.e., x, bx, sx, lx)

On the mystical island of Lumina, researchers discover the elusive Glowfinch, a bird with radiant feathers that glow in the dark. During a mark-recapture study, 50 Glowfinches are marked with luminescent bands and released. In the second capture, 100 Glowfinches are caught, and 20 of them are found to still shimmer brightly. What is the estimated population size (N) of Glowfinches on Lumina? 0160 250 500 130 O100 200 13

Instructions: From the list below, select the type of reproductive barrier used to maintain species for each of the provided examples. Be aware, some barriers may not be used at all and others may be used more than once. Do not make assumptions, read each example carefully. Hybrid Inviability Hybrid Infertility Spatial Behavioral Mechanical Temporal Gamete Incompability Hybrid Breakdown EXAMPLE BARRIER Two mules mate but never produce offspring Lions (Africa) and tigers (Asia) in the wild An owl (active at night) and a blue jay (active during the day) Why a plant cannot fertilize itself One fish species attracts a mate by humming and a second species by creating an patch of seaweed A goat and a sheep reproduce but the embryo never develops The reproductive openings of one species are 3 mm apart but in a second species the are 7 mm apart

“Calculate the rates specified below (a to c), using the following information about the black population of the United States in 2000 (numbers were modified to simplify calculations) “( be careful to use the correct denominator)   Average population size 28 million, including 7.2 million women aged 15-44. There were 13 million men in this population. Live births: 600,000 Fetal deaths: 4380 Death in the first week of life: 6120 Death in the first 28 days of life (excluded first week): 960 Death in the first year of life (excluding in the first 28 days): 3900 Total deaths in the population: 230,000 Deaths from heart diseases: 75,000, of those 45,000 occurred among men aged 35 years and above     What is the fetal mortality rate? What is post-neonatal mortality rate? What is the sex -specific mortality rate from heart disease

You return to the meadow a year later and find that the population has been reduced to 5,200 butterflies but this smaller population still contains 1,250 black-winged butterflies (bb). What is the new value for q? (Hint: you can calculate q since you know the frequency of the homozygous recessive genotype. You will need a calculator for this particular problem.) O A. 0.41 O B. 0.49 OC.0.59 O D.0.51 QUESTION 20 You return to the meadow a year later and find that the population has been reduced to 5,200 butterflies but this smaller population still contains 1,250 black-winged butterflies (bb). IF the population has returned to H-W equilibrium, how many butterflies would you expect to have the homozygous dominant genotype? O A. 1250 O B. 2599 ОС.3950 O D. 1351

Carrying Capacity and the Bison of Yellowstone National Park The following text is adapted from an article in Yellowstone Science, a journal published by the National Park Service. An important part of the Yellowstone National Park ecosystem, bison are the largest land mammals in North America. Yellowstone bison historically occupied approximately 7,720 square miles (20,000 km²) in the headwaters of the Yellowstone and Madison rivers. Today, this range is restricted to primarily Yellowstone National Park and some adjacent areas of Montana. The bison population is subdivided into the central and northern breeding herds. One of the key issues related to the Yellowstone bison population is how it should be managed. From the beginning of the twentieth century through 1966, bison numbers were kept in check through regular culling. This culling was stopped in 1969. Officials decided to allow bison numbers to fluctuate according to such factors as weather, the availability of resources, and…

A meadow is home to a population of plants of a particular species. Among these individuals are 125 plants that have red flowers and 375 plants that have white flowers. The allele of the flower color gene that produces red flowers (R) is completely dominant over the white flower color allele (r). What is the frequency of the dominant R allele in this population? a- 0.75 b- 0.87 c- 0.13 d- 0.25

A population of rabbits contained 200 individuals in 2017 and 300 in 2018. What was its finite rate of increase, λ, over that one year?

In a longitudinal study, 100 children born on the same day were sampled in a population of interest, and genotyped at one locus that has two alleles, A1 and A2. The children were followed every seven years until adulthood. At the end of the study, 75 reproductive adults remained from the original cohort of 100 children. Genotype A1A1 A1A2 A2A2 Number of Children 48 36 16 Number of Adults 30 27 18 On average, in populations with genotype frequencies as they were in the original sample of 100 children, compare and contrast what changes in genotype and allele frequencies you would expect over time. If the populations were in HWE, compared to the effects of random genetic drift only, compared to the effects of selection with the relative fitnesses: w11 = 0.556, w12 = 0.667, w22 = 1.

In 2011, the city of Calgary had 1,096,833 people living within the city limits. Since then, there have been 245,678 births and 189,753 deaths. A total of 159,753 people moved to Calgary from other cities or countries, while only 12,354 people moved away from Calgary.    How did the population of Calgary change since 2011?    Express your answer using scientific notation in the form of x.yz x 10d people.