The annotated bibliography must include a minimum of 5 citations from the primary scientific literature. Your annotated bibliography must include complete, properly formatted citations and a description of the article, including how it relates to your topic statement. At least 2 citations should address the evolutionary concept (e.g., review articles, theoretical papers, history, or perspectives) and at least 2 should be for evidence or examples supporting the topic. One citation may be general background, such as natural history, on the focal species or system. Include your Topic Statement at the top of the Annotated Bibliography assignment.
my Topic will be on
Criteria | Ratings | Pts | ||
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This criterion is linked to a Learning OutcomeCitations |
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10.0 pts |
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This criterion is linked to a Learning OutcomeAnnotations |
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40.0 pts |
Example: Vestigial wings and the evolution of flightlessness in Galapagos Island cormorants (Phalacrocorax harrisi)
Keywords: vestigiality, flightlessness, Galapagos Island cormorants
McNab, B.K., 1994. Energy conservation and the evolution of flightlessness in birds. The American Naturalist, 144(4), pp.628-642. https://doi.org/10.1086/285697
The author examined the hypothesis that energy conservation contributes to the evolution of flightlessness in birds by comparing the factors correlated with basal metabolic rate in flighted and flightless rails and ducks. They found support for their hypothesis in flightless birds, except penguins, which use their wings for locomotion in water. The authors concluded that a lack of selective pressure for flight (lack of predators) combined with a high metabolic demand to maintain flight capability, contributes to vestigiality (reduction of wings and pectoral muscles) in environments where resources are limited. This article is relevant to my topic statement because it addresses a hypothesis about how flightlessness and vestigial wings evolved in birds, more generally
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