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TLS Online TPP Program

#Question id: 3288

Migration causes changes in the allelic frequency of a population by introducing alleles from other populations. The magnitude of change due to migration depends on

#Section 2: Evolution

  1. Both the extent of migration and the difference in allelic frequencies between the source and the recipient populations.

  2. The extent of migration

  3. The difference in allelic frequencies between the source and the recipient populations.

  4. Depend on sex ratio of source population

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TLS Online TPP Program

#Question id: 12147

#Section 1: Ecology

Climax forests
TLS Online TPP Program

#Question id: 12148

#Section 1: Ecology

If asked to find the cause of regular fluctuations in a population's size not associated with seasonal environmental variation, you would probably first seek evidence for: 
TLS Online TPP Program

#Question id: 12149

#Section 1: Ecology

In a discrete-time population model, which of the following behaviours is associated when 1 < r < 2? 
TLS Online TPP Program

#Question id: 12150

#Section 1: Ecology

You are studying population dynamics in three species of small aquatic invertebrates called water fleas. Among these species, which is most likely to exhibit regular population cycles? 
TLS Online TPP Program

#Question id: 12151

#Section 1: Ecology

The basic model of metapopulation dynamics predicts a shifting mosaic of occupied and unoccupied sites under which of the following combinations of extinction (E) and colonization (C) rates? 
TLS Online TPP Program

#Question id: 12152

#Section 1: Ecology

When immigration from large, productive subpopulations keeps declining subpopulations from dwindling to extinction, the phenomenon is called the __________.