Tag: population ecology

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Questions Related to population ecology

Multiple choice zoology human population population ecology population size population and how it changes

An individual in local hawk populations must increasingly compete for a limited number of nesting sites. This is an example of

  1. A convergent dispersion pattern within the population

  2. A uniform dispersion pattern within the population

  3. A random dispersion pattern within the population

  4. A clumped dispersion pattern within the population

  5. Multiple individuals simultaneously occupying the same nest
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dispersion pattern is a species-specific feature and shows the spatial relationship between population members present in the specific area. When members of same species inhibit the growth of another individual of the same species present nearby or those with defined territories exhibits the uniform pattern of distribution. In the present example, hawk population faces intraspecific competition for limited nesting sites and therefore will be present at a uniform distance from each other. 

So, the correct answer is option B.

Multiple choice zoology human population population ecology population size population and how it changes

Volume and surface area of a deer is 1,50,000 c$m^3$ and 19,000 c$m^2$ and of a squirrel is 625 c$m^3$ and 530 c$m^2$. The area available for heat loss per c$m^3$ of squirrel will be approximately

  1. Seven times more than the deer

  2. Eleven times less than the deer

  3. Three times more than the deer

  4. Eleven times more than the deer
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Surface area to volume ratio determines heat loss. For deer: 19000/150000 = 0.126. For squirrel: 530/625 = 0.848. Ratio 0.848 / 0.126 is approximately 6.7, which is close to 7.

Multiple choice zoology human population population ecology population size population and how it changes

Density of population (D) is 

  1. $D=\dfrac{S(size)}{W (weight)}$
  2. $D=\dfrac{S(space)}{N (Number)}$
  3. $D=\dfrac{N(number)}{S (space)}$

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The population density of a place is a number that defines the crowd in that place. It is calculated by dividing the population by the given area.
D = N/S = Number/Space