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TLS Online TPP Program

#Question id: 12611

Researchers in the Netherlands studied the effects of parental caregiving in European kestrels over 5 years. The researchers transferred chicks among nests to produce reduced broods (three or four chicks), normal broods (five or six),  and  enlarged  broods  (seven  or  eight).  They then measured the percentage of male and female parent birds that survived the following winter. (Both males and females provide care for chicks.) Brood Size Manipulations in the Kestrel: Effects on Offspring and Parent Survival

 
Which of the following is a conclusion that can be drawn from this graph?

#Unit 10. Ecological Principles
  1. Female survivability is more negatively affected by larger brood size than is male survivability. 
  2. Male survivability decreased by 50% between reduced and enlarged brood treatments.
  3. Both males and females had increases in daily hunting with the enlarged brood size.
  4. There appears to be a negative correlation between brood enlargements and parental survival.
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TLS Online TPP Program

#Question id: 24570

#Unit 10. Ecological Principles

Geometric growth describes the population growth where is the N0= 100 is the number of females currently in the population,  what is the population size after the five generation if R0= 1.4 ?
TLS Online TPP Program

#Question id: 24571

#Unit 10. Ecological Principles

In which case the population eventually decline to extinction?
TLS Online TPP Program

#Question id: 24572

#Unit 10. Ecological Principles

Find out the characteristics of geometric growth?
a. It can grow for both periodic and continuous breeders
b. depends on the activity of net reproductive growth rate
c. unlimited Population Growth Leads to J-shaped
d. unlimited Population Growth Leads to S-shaped
e. resources are not limited
TLS Online TPP Program

#Question id: 24573

#Unit 10. Ecological Principles

Calculate the finite rate of increase, if ecologists count the number of birds in the population, N0= 100, the next year ecologists count 110 birds in the same population, 
TLS Online TPP Program

#Question id: 24574

#Unit 10. Ecological Principles

If number of birds in the population N0= 100 next year ecologists count 110 birds in the same population, consider a population of birds growing at a rate of 5% per year. After 5 years how many birds would there be?
TLS Online TPP Program

#Question id: 24575

#Unit 10. Ecological Principles

If the initial population size 1000 then given population birth rate is 0.55, and death rate is 0.45, then calculate the change in population per unit time?