Resurveying California's Wildlife
KQED, Teachers' Domain
Video length 7:42 min.Learn more about Teaching Climate Literacy and Energy Awareness»
See how this Video supports the Next Generation Science Standards»
Middle School: 4 Disciplinary Core Ideas, 2 Cross Cutting Concepts
High School: 6 Disciplinary Core Ideas, 2 Cross Cutting Concepts
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Teaching Tips | Science | Pedagogy |
About the Science
- The video contains a discussion of the original wildlife surveys done by Grinnell. The specimens collected around 1908 have provided a basis of comparison for recent re-surveys in Yosemite. These comparisons indicate that as temperatures rise, low-altitude species are shifting their habitat up in elevation or are dying out. The next effect is a loss of genetic diversity.
Comments from expert scientist:
- Provides history of wildlife surveys and shows the importance of the records
- Shows importance of field notes and maps
- Shows that animals have moved to higher elevations (9 species of small mammals)
- Shows that some animals (alpine chipmunks) have not moved elevation, but rather have died off
- Introduces natural selection and biodiversity significance
About the Pedagogy
- The material is presented in a story-like format with historic photographs and a strong human interest element. It describes the original Grinnell survey, the development of specimen collections, and the comparison with the recent survey.
- A good blend of how science and observations of the past are used in the context of modern science and technology.
- Can be used to teach the nature of science because it shows how data collected in the past can be used with current studies for comparison.
- There is a lesson plan, educator's guide, and background material on the web page for this video.