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The Case of the Ivory-billed Woodpecker

by Anthony Carpi, Ph.D.,   Anne E. Egger, Ph.D.

©American Association for the Advancement of Science/Cornell Lab of Ornithology enlarge image

Figure 1: A picture of the cover of Science from June 3, 2005.

At approximately 1:30 in the afternoon on February 11, 2004, Gene Sparling spotted a large black and white woodpecker while kayaking on a rural bayou in Monroe County, Arkansas. The notes he posted to his website about the sighting caught the attention of Tim Gallagher and Bobby Harrison, two university researchers, and triggered a year-long research effort that resulted in the publication of a peer-reviewed paper in the journal Science. The link below gives free access to this research article. To learn more about scientific writing, including how research papers are organized, how they are reviewed, and how they contribute to our understanding of the scientific world, read the article and then try the exercise below.

Fitzpatrick et al. (2005) “Ivory-billed Woodpecker (Campephilus principalis) Persists in Continental North America,” Science 308:1460-1462.

If you are a registered teacher with the Visionlearning web site, you may access a teacher discussion guide by clicking here.

Article Format

1. Indicate where in the article the Introduction section ends and the Materials and Methods section begins and explain why you choose this point in the article.
2. Indicate where in the article the Materials and Methods section ends and the Results section begins and explain why you choose this point in the article.
3. Indicate where in the article the Results section ends and the Discussion section begins and explain why you choose this point in the article.

Article Content

4. What is the hypothesis proposed by the authors of the article?
5. Quality scientific research commonly includes a discussion of a “null” hypothesis, an alternative hypothesis that may be true if the main hypothesis proves incorrect. What is the null hypothesis in this article with respect to the data discussed?
6. What evidence do the researchers present to support their hypothesis?
7. How is the data presented graphically and how do these visual representations help the interpretation of the article?
8. Is the hypothesis presented in the research article now a proven fact?

To learn more about the ivory-billed woodpecker, visit the Rediscovering the Ivory-Billed Woodpecker page at the Cornell Lab of Ornithology.

Related Modules

Scientific Communication: Understanding Scientific Journals and Articles