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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: 3724

Quantitative variation and the ecological role of vulpinic acid and atranorin in thallus of Letharia vulpina Quantitative variation and the ecological role of vulpinic acid and atranorin in thallus of Letharia vulpina

High pressure liquid chromatography was used to determine concentrations of vulpinic acid and atranorin in the thaullus of Letharia vulpina. Vulpinic acid concentration is lowest in the old basal branches of the thallus and increases toward the young branch tips, whereas the reverse is true for atranorin. The suggested role of vulpinic acid as an anti-herbivore defense compound is...
Authors
Nathan L. Stephenson, Philip W. Rundel

Prescribed fire job qualification guide Prescribed fire job qualification guide

No abstract available at this time
Authors
W.L. McCleese, L. Bancroft, G. Ferry, R. French, J.T. Hance, J. Hickman, R. Mutch, J. W. van Wagtendonk, F. Zontek

Mesurol--it's for the birds Mesurol--it's for the birds

No abstract available at this time
Authors
T.J. Zabadal, R. L. Hothem

Exploitation of marine mammals: r-selection of K-strategists? Exploitation of marine mammals: r-selection of K-strategists?

The importance of marine mammals as predators to the organization of marine communities is poorly known, although in several structurally analogous systems the ecological and evolutionary roles of predators are known to be of considerable importance. Occupation of the marine environment by mammals probably carried physiological constraints for single-young pregnancies thereby limiting...
Authors
J. A. Estes
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