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Conclusion: Seasonal variation in group size is due to difference in mortality rates of young voles.lucas211 wrote:Hello BTG
Would appreciate a little help on the following question:
The prairie vole, a small North American grassland rodent, breeds year around, and a group of voles living together consists primarily of an extended family, often including two or more litters. Voles commonly live in large groups from late autumn to winter; from spring thru early autumn, however, most voles live in far smaller groups. The seasonal variation in groups size can probably be explained by a seasonal variation in mortality among young voles.
Which of the following, if true, provides the strongest support for the explanation above?
A) It is the spring and in the early summer that prairie vole communities generally contain the highest proportion of young voles.
B) Prairie vole populations vary dramatically in size from year to year.
C) The prairie vole subsists primarily on broad-leaved plants that are abundant only in spring.
D) Winters in prairie vole's habitat are often harsh, with temperatures that drop well below freezing.
E) Snakes, a major predator of young prairie voles, or active only from spring thru early autumn.
Thanks in advance
Premise: The voles are in abundance from autumn to winter, but are very few in number from spring through autumn. This is explained because of the mortality in your voles.lucas211 wrote:Hello BTG
Would appreciate a little help on the following question:
The prairie vole, a small North American grassland rodent, breeds year around, and a group of voles living together consists primarily of an extended family, often including two or more litters. Voles commonly live in large groups from late autumn to winter; from spring thru early autumn, however, most voles live in far smaller groups. The seasonal variation in groups size can probably be explained by a seasonal variation in mortality among young voles.
Which of the following, if true, provides the strongest support for the explanation above?
A) It is the spring and in the early summer that prairie vole communities generally contain the highest proportion of young voles.
B) Prairie vole populations vary dramatically in size from year to year.
C) The prairie vole subsists primarily on broad-leaved plants that are abundant only in spring.
D) Winters in prairie vole's habitat are often harsh, with temperatures that drop well below freezing.
E) Snakes, a major predator of young prairie voles, or active only from spring thru early autumn.
Thanks in advance
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