Question

7. Metapopulation models and source-sink models both assume that patches of suitable habitat are distributed throughout a matrix of unsuitable babitat. Which of the following best describes how they DIFFER? a. In a metapopulation model, all patches produce emigrants equally; in a source-sink model, patches vary in production of emigrants. b. In a metapopulation model, all patches can be occupied; in a source-sink model, some patches can never be colonized. c. In a metapopulation model, the matrix of unsuitable habitat is uniform; in a source-sink model, different parts of the matrix are less permeable to dispersers. d. All of the above are correct.