b. In an initial population of 100 snowy plovers, there were 30 births and 20 deaths in one year. Based only on the birth and death rates, identify the expected size of the snowy plover population at the end of the year. (1 point)(1 point)

Answer 1

To determine the expected size of the snowy plover population at the end of the year, we can use the following formula:

\[ \text{End Population} = \text{Initial Population} + \text{Births} - \text{Deaths} \]

In this case:

• Initial Population = 100
• Births = 30
• Deaths = 20

Now we can calculate:

\[ \text{End Population} = 100 + 30 - 20 \] \[ \text{End Population} = 100 + 10 \] \[ \text{End Population} = 110 \]

Therefore, the expected size of the snowy plover population at the end of the year is 110.

Answer 2

make it a sentance

Answer 3

Based on the birth and death rates, the expected size of the snowy plover population at the end of the year is 110.

Answer 4

23 / 10000 Word Limit23 words written of 10000 allowed
Question 20
c. At the end of the year, there were actually 80 snowy plovers in the population. Assuming there were no additional births or deaths, explain why the actual population size differed from the expected population size. (2 points)(2 points)

Answer 5

The actual population size of 80 snowy plovers differed from the expected size of 110 due to unaccounted factors such as immigration, emigration, or environmental impacts that may have caused additional deaths, or reduced survival rates that were not reflected in the initial birth and death counts.

Answer 6

d. Current efforts to conserve plover populations include building wire fences around their nests and making certain beaches off-limits to people during plover breeding season. Explain why making certain beaches off-limits during plover breeding season is a more effective conservation method than building fences around plover nests. (2 points)(2 points)

Answer 7

Making certain beaches off-limits during plover breeding season is a more effective conservation method than building fences around plover nests because it reduces human disturbance in critical habitats, allowing plovers to breed and rear their young without disruption. This approach also minimizes the risk of nest predation and abandonment that can occur even with fences, ultimately enhancing the overall reproductive success and survival of the population.