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Geology topics

David J. Germano

Publications and source records attributed to David J. Germano.

3 recordsLinked to original sources

Differences in habitat use by blanding's turtles, Emydoidea blandingii, and painted turtles, Chysemys picta, in the Nebraska sandhills

We sampled a variety of wetlands in the Nebraska sandhills at Valentine National Wildlife Refuge. Significantly more individuals of painted turtles ( Chrysemys picta ) occurred in lakes and open waters than in marshes or small ponds, and the opposite was true for Blanding's turtles ( Emydoidea blandingii ). Besides this marked difference in habitat use, 46% of the captured E. blandingii in pond/marsh habitat were juveniles, but only 31.6% in lakes and open water. Current information suggests that marshes and small ponds are important habitat for juvenile turtles, especially Emydoidea blandingii .

Nebraska

Western pond turtles (Clemmys marmorata) in the central valley of California: Status and population structure

A sensitive resettable odometer reading to 0.01 mile facilitated censusing breeding male redwinged blackbirds (Agelaius phoeniceus) from a vehicle. Territorial males along roadsides were 'marked' with recorded mileage readings rather than with landmarks of the types employed by Hewitt for censuses based on the Lincoln index principle. Sensitive odometers that can be reset have many potential uses in wildlife investigations.

Transactions of the Western Section of the Wildlif