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Publications

Below is a list of WERC's peer-reviewed publications. If you are searching for a specific publication and cannot find it in this list, please contact werc_web@usgs.gov

Filter Total Items: 3696

Gas exchange characteristics of the submerged aquatic Crassulacean acid metabolism plant, Isoetes howellii Gas exchange characteristics of the submerged aquatic Crassulacean acid metabolism plant, Isoetes howellii

The submerged aquatic plant Isoetes howellii Engelmann possesses Crassulacean acid metabolism (CAM) comparable to that known from terrestrial CAM plants. Infrared gas analysis of submerged leaves showed Isoetes was capable of net CO2 uptake in both light and dark. CO2 uptake rates were a function of CO2 levels in the medium. At 2,500 microliters CO2 per liter (gas phase, equivalent to 1...
Authors
Jon E. Keeley, G. Bowes

Alcatraz Island Alcatraz Island

No abstract available at this time
Authors
J. Howell

Status and distribution of ants in the Crater District of Haleakala National Park Status and distribution of ants in the Crater District of Haleakala National Park

The Crater District of Haleakala National Park was surveyed for ants. Three species were found. Argentine ants (Iridomyrmex humilis) occurred only within I km of the park headquarters and the nearby research facility. Hypoponera opaciceps was found in small numbers throughout the Crater District. Cardiocondyla emeryi was present only at the head of Kaupo Gap. Possible impacts of these...
Authors
JoanH Fellers, Gary Fellers

Scavenging rates of invertebrates in an eastern deciduous forest Scavenging rates of invertebrates in an eastern deciduous forest

Rates at which scavengers located three types of dead insects were measured. All dead insects were taken by ants with a median time of 3.75 min (range 0.33-36 min). This gives strong indirect evidence that such food is in short supply.
Authors
Gary Fellers, Joan Fellers
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