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: 3620
Population trends of the mantled howler monkey groups of La Pacifica, Guanacaste, Costa Rica
A complete survey of La Pacifica in Guanacaste Province, Costa Rica was conducted in July 1984 in order to determine whether the howler (Alouatta palliata) population had declined since 1972 as a result of deforestation. During the 6-day survey, 257 howlers were located, representing 16 different social groupings and nine solitary animals. The total number of howlers, the number and location of gr
Authors
M. R. Clarke, E. L. Zucker, N. J. Scott
Decline of ranid frog species in western North America: are bullfrogs (Rana catesbeiana) responsible?
No abstract available.
Authors
M. P. Hayes, M.R. Jennings
"Tapping": A technique for capturing tortoises
No abstract available.
Authors
P.A. Medica, C.L. Lyons, F.B. Turner
The use of stable isotopes in the study of photosynthesis in freshwater plants
The ratio of 13C/12C for photosynthetic tissues of 22 aquatic species was unrelated to photosynthetic pathway. In three aquatic environments CAM and non-CAM species were shown to have similar δ13C values. Although these CAM species derive up to half of their net carbon gain through dark fixation their δ13C values are similar to associated non-CAM species in part because the carbon source for dark
Authors
Jon E. Keeley, Leonel Sternberg, Michael J. DeNiro
Post fire recovery of chaparral along an elevational gradient in southern California
No abstract available.
Authors
J. E. Keeley, T.J. Soderstrom
Seed germination patterns in coastal sage, chaparral and desert scrub populations of Salvia mellifera
No abstract available.
Authors
J. E. Keeley
Inter-and intralocular distribution of yucca moth larvae in Yucca whipplei (Agavaceae)
No abstract available.
Authors
J. E. Keeley
Relationships between selenium concentrations and avian reproduction
No abstract available.
Authors
H. M. Ohlendorf, R. L. Hothem, C. M. Bunck, T. W. Aldrich, John F. Moore
Natural fire management in national parks
An evolving understanding of ecological processes, together with ambiguities in National Park Service policy, have led to multiple interpretations of the role of management in our large natural area National Parks. National Park Service management policies must be dynamic and responsive to changes in scientific knowledge and societal values. We propose that the principal aim of NPS resource manage
Authors
D.J. Parsons, D.M. Graber, J.K. Agee, J. W. van Wagtendonk
The boundary model: A geographical analysis of design and conservation of nature reserves
It is widely recognised that nearly all parks and reserves are too small to protect their biological diversity. In response to this problem, we have been developing a multidisciplinary ‘boundary model’ that focuses upon the processes of exchange across the administrative edges of nature reserves. The model incorporates known dynamics from various disciplines and describes the interactions of these
Authors
C. Schonewald-Cox, J.W. Bayless
1986 Rare Plant Study Findings. A Report to the California State Dept. of Fish and Game, Endangered Plant Species Program and the Superintendent, Channel Islands National Park
No abstract available at this time
Authors
R. Clark, W. L. Halvorson