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: 3743
Decline of ranid frog species in western North America: Are bullfrogs (Rana catesbeiana) responsible? Decline of ranid frog species in western North America: Are bullfrogs (Rana catesbeiana) responsible?
No abstract available.
Authors
M.P. Hayes, M.R. Jennings
Commercial sunflowers: food for red foxes in North Dakota Commercial sunflowers: food for red foxes in North Dakota
No abstract available.
Authors
A.B. Sargeant, S.H. Allen, J. P. Fleskes
The distribution of manatees and sea turtles in Puerto Rico, with emphasis on Roosevelt Roads Naval Station The distribution of manatees and sea turtles in Puerto Rico, with emphasis on Roosevelt Roads Naval Station
No abstract available at this time
Authors
G. B. Rathbun, Thomas Carr, N. Carr, C.A. Woods
Analysis of forest structure using thematic mapper simulator data Analysis of forest structure using thematic mapper simulator data
No abstract available at this time
Authors
D. L. Peterson, W.E. Westman, N.L. Stephenson, V.G. Ambrosia, J.A. Brass, M.A. Spanner
An ecological study of a slender salamander (Batrachoceps cf. aridus) population at the Guadalupe Creek study site, Santa Rosa Mountains, Riverside County, California An ecological study of a slender salamander (Batrachoceps cf. aridus) population at the Guadalupe Creek study site, Santa Rosa Mountains, Riverside County, California
No abstract available at this time
Authors
R.B. Duncan, T. C. Esque
"Tapping": A technique for capturing tortoises "Tapping": A technique for capturing tortoises
No abstract available.
Authors
P.A. Medica, C.L. Lyons, F.B. Turner
Seed predation by yucca moths on semelparous, iteroparous and vegetatively reproducing subspecies of Yucca whipplei (Agavaceae) Seed predation by yucca moths on semelparous, iteroparous and vegetatively reproducing subspecies of Yucca whipplei (Agavaceae)
Yucca whipplei subspecies are distinguished by differences in reproduction: spp. whipplei and ssp. parishii are semelparous, flowering once and dying; ssp. caespitosa is iteroparous, producing multiple rosettes which may flower in different years; ssp. percursa has clonal reproduction from rhizomes, and ssp. intermedia is intermediate to the latter two. Seed loss due to the symbiotic...
Authors
Jon E. Keeley, Sterling C. Keeley, D. A. Ikeda
Carbon, oxygen and hydrogen isotope abundances inStylites reflect its unique physiology Carbon, oxygen and hydrogen isotope abundances inStylites reflect its unique physiology
Natural abundances of oxygen-18, carbon-14, carbon-13 and deuterium were measured inStylites andicola, a terrestrial vascular plant lacking stomates, and two terrestrial plant species having stomates that grew nearby. No substantial differences in oxygen-18 and carbon-13 abundances were observed among the three species. The deuterium concentration inStylites was much higher than in the...
Authors
Leonel d.S.L Sternberg, Michael J. DeNiro, D. McJunkin, R. Berger, Jon E. Keeley
Temporal and spatial distribution of manatees in Kings Bay, Crystal River, Florida Temporal and spatial distribution of manatees in Kings Bay, Crystal River, Florida
No abstract available.
Authors
Howard I. Kochman, Galen B. Rathbun, James A. Powell
Stomatal mechanism as the basis of evolution of crassulacean acid metabolism Stomatal mechanism as the basis of evolution of crassulacean acid metabolism
No abstract available.
Authors
Jon E. Keeley, C.B. Osmond, J.A. Raven