Population Ecology

The black rhinoceros is a mammal found in Africa. Weighing in at up to 1,350 kg, these rhinos can live roughly 35 years. Gestation in the black rhino lasts for 15-16 months, with calves staying under the mother’s parental care for up to four years.

Black rhinos have been hunted extensively by humans for their horns. Poaching pressure has reduced the black rhino population to an endangered level. Ongoing efforts are attempting to save the animal from extinction.

How can the black rhino survivorship strategy be categorized?

• K-selection, type I

• K-selection, type III

• r-selection, type I

• r-selection, type III

Tags

NGSS.HS-LS4-4

In 1976, the dominant finch on Daphne Major in the Galapagos Islands was the medium ground finch, with a population of 1,200. In 1977, a drought struck the island negatively affecting most of the vegetation. As a result, the population of medium ground finch dropped to 180 due to starvation. In 1983, however, a large amount of rainfall fell on the island creating optimal conditions for vegetation. The medium ground finch population increased to 1,100. What type of factor affected medium ground finch populations in 1977 and 1983?

• Density independent

• Logistic

• Density dependent

• Biotic

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

In 1976, the dominant finch on Daphne Major in the Galapagos Islands was the medium ground finch, with a population of 1,200. In 1977, a drought struck the island negatively affecting most of the vegetation. As a result, the population of medium ground finch dropped to 180 due to starvation. In 1983, however, a large amount of rainfall fell on the island creating optimal conditions for vegetation. The medium ground finch population increased to 1,100. After the rainfall of 1983, what type of population growth did the medium ground finch experience?

• Logistic

• Quantitative

• Exponential

• Abiotic

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Which letter shows the the exponential growth of a population?

• A
• B
• C
• D

Which point on the graph represents carrying capacity?

• A
• B
• C
• D

Tags

NGSS.HS-LS2-1

Refer to a population of 500 that experiences 55 births and 5 deaths during a one year period.
If the population maintains the current growth pattern, a plot of its growth would resemble which of the following?

• exponential growth
• fluctuating growth
• K-selected growth
• logistic growth

Tags

NGSS.HS-LS2-6

__________ growth shows growth of a population under environmental constraints (carrying capacity-K) that sets a maximum population size 

• logistic
• exponential
• niche
• uniform

Tags

NGSS.HS-LS2-1

These types of organisms which multiply rapidly in numbers 

• R-strategists
• K-strategists
• predators
• mutualists

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

________ grow slowly over time, cares for its young over a long period of time and is usually near the carrying capacity of its ecosystem.

• K-strategists
• R-strategists
• Uniform strategists
• environmentalists

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-6

Which of these populations is experiencing the fastest growth?

• A
• B
• C
• D

Tags

NGSS.HS-LS2-2