Read about Biodiversity
Hotspots and find the hotspot nearest to you.
1.In your own words, define a biodiversity hotspot.
2. How many biodiversity hotspots have been identified?
3. Which hotspot is geographically nearest to you?
4. How many endemic insects are in this hotspot?
Use the Species Database to see the threatened species. PubMed,
Google Scholar are indexes
to articles published in medical and scientific journals.
5. Check out PubMedm Highwire, and Google Scholar by looking for
an article on one of the endemic mammals or amphibians in this
hotspot. Give the article's citation in the proper
format. Note that PubMed, Highwire, and Google Scholar are
not the citation and not in the citation.
Go to The Tree of
Life (TOL). Click on phylogeny in the text below the
6. Paraphrase into your own words, what is meant by "the
phylogeny of organisms"?
7. Click on the root of the tree. What domain are animals in?
8. Follow that domain. Which of the following is most closely
related to fungi? Animals, plants, bacteria
Tipulids are common around your home and college.They eat nectar
or do not eat at all. Type tipulidae in the TOL search box then
follow the link
9. How many wings does it have?
10. This places it in the order: ___________. The hind wings of
this order are modified into little gyroscopes. Describe them.
11. Tipulid larvae can be found in streams and lawns. Follow the
links on the right of the TOL tipulid page to view the larva.
Describe the larva.
The San Francisco Bay Estuary is the nation's second largest
and perhaps the most biologically significant estuary on the Pacific
Coast. Go to the U.S.
Fish and Widlife Service and follow the link to the Flyways
California is a helpful reference.
12. How many shorebirds pass through San Francisco Bay each day
during winter migration? ______________
How is it possible for such a large number of similar bird species
such as avocets, curlews,and stilts to exist in an apparently
homogeneous habitat? They all eat aquatic snails, insects, worms,
and some small fry of fishes.
13. Mark the Pacific Flyway route of the Black-necked Stilt,
Long-billed Curlew and American Avocet on
14. The birds shown below are found in San Francisco Bay..
Type Birds into the Tree of Life
search box and follow the links to identify their family.
a. To what family do they belong?
b. What do they eat?
15. Read about Invasive Species.
San Francisco Bay has the most non-native species in the world. One example is Caprella mutica (skeleton shrimp).
a. How do invasive species get into the bay?
To answer (b), read the article: Byrnes, J.E., P. L. Reynolds, and J. J. Stachowicz. (2007). "Invasions and Extinctions Reshape Coastal Marine Food Webs." PLoS ONE 2(3): e295. doi:10.1371/journal.pone.0000295
What effect could this shrimp have on the birds in question 14.