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TLS Online TPP Program

#Question id: 11768

As documented by peter and rosemary grant, the population of the medium ground finch on the tiny island of Daphne major in the Galápagos archipelago responded how to changes in food resources associated with climate changes:

#Section 2: Evolution
  1. During the drought of 1975-1978, the population decreased
  2. The average beak size of surviving individuals, and their progeny, increased significantly between 1976 and 1978
  3. During the exceedingly wet El niño year of 1983, birds with smaller beaks handled the abundant smaller seeds more efficiently and the average beak size of the population returned to a lower value
  4. All of the above
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TLS Online TPP Program

#Question id: 11354

#Section 1: Ecology

C.B. Huffaker was able to maintain experimental populations of predator and prey (using species of mites) that exhibited recurring oscillations. What feature of Huffaker's experimental design was critical to this outcome?
TLS Online TPP Program

#Question id: 12113

#Section 4: Behavioural Ecology

In belding’s ground squirrels, it is mostly the females that behave altruistically by sounding alarm calls. What is the likely reason for this distinction?
TLS Online TPP Program

#Question id: 10869

#Section 2: Evolution

Parasitoidism is most similar to
TLS Online TPP Program

#Question id: 12296

#Section 1: Ecology

When calculating population growth rate, the symbol r refers to ________________.
TLS Online TPP Program

#Question id: 4714

#Section 2: Evolution

After the drought of 1977, researchers hypothesized that on the Galápagos Island Daphne Major, medium ground finches with large, deep beaks survived better than those with smaller beaks because they could more easily crack and eat the tough Tribulus cistoides fruits. A tourist company sets up reliable feeding stations with a variety of bird seeds (different types and sizes) so that tourists can get a better look at the finches. Which of these events is now most likely to occur to finch beaks on this island?