Spiders of the World

Checking the Data

The next step in the World Wide Spider Count is to compare the data collected by students with known information such as the number of species per family found worldwide and the relative abundance of these families at PIN locations (Europe including the U.K., North America-Canada, U.S. including Hawaii, Bermuda and Mexico). Knowing the number of species in each family may suggest how many spiders one would expect to find in a given area. We can compare this information with the data collected by students at PINS and independant sites.

Students can make a new bar chart or simply compare the reported data with the known information. Look for similarities and differences in the numbers for each spider family. If the numbers vary greatly, try to explain the difference. Look at the distribution of the spiders to see if they are easy to find or are more common at the majority of PINS.

Spiders of the World


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Gene Carl Feldman (gene@seawifs.gsfc.nasa.gov) (301) 286-9428
Todd Carlo Viola, JASON Foundation for Education (todd@jason.org)