Trophic status and assessment of non-point nutrient enrichment of Lake Crescent Olympic National Park
Terence P. Boyle, David R. Beeson
1991, Report
A limited effort study was conducted in Lake Crescent, Olympic National Park to determine the trophic status and assess whether non-point nutrients were leaching into the lake and affecting biological resources. The concentration of chlorophyll a, total nitrogen concentration, and Secchi disk transparency used as parameters of the Trophic...
Brucellosis in free-ranging bison: three perspectives
E. Tom Thorne, M. Meagher, B. Hillman
1991, Book chapter, The greater Yellowstone ecosystem: Redefining America's wilderness heritage
No abstract available....
Marine slope stability: Preface
Homa J. Lee
1991, Marine Geotechnology (10) 3-4
No abstract available....
Movements of Yellowstone grizzly bears
Bonnie M. Blanchard, Richard R. Knight
1991, Biological Conservation (58) 41-67
Ninety-seven grizzly bears Ursus arctos horribilis were radio-located 6299 times during 1975–1987. Annual range sizes differed by sex, age, reproductive status and amount of precipitation. Females exhibited greater fidelity to seasonal and annual ranges than males. Weaned female offspring generally remained in the vicinity of the maternal range, while weaned...
Hydrology of a riparian forested area on Boulder Creek
L.J. Martin
1991, Book, South Platte River resource management: Finding a balance
No abstract available....
Development of assessment methods for hydrologic impacts on western riparian ecosystems
Lee S. Ischinger
1991, Book, South Platte River resource management: Finding a balance
No abstract available....
Status of Sea Otter (Enhydra lutris) populations
J. A. Estes
1991, Book, Proceedings of the V. International Otter Colloquium
No abstract available....
Non-genetic origin of isoenzymic variability in subterranean turions of monoecious and dioecious hydrilla
F.J. Ryan, Joan S. Thullen, D.L. Holmberg
1991, Journal of Aquatic Plant Management (29) 3-6
No abstract available....
Predictive models of riparian vegetation response to altered streamflow
Gregor T. Auble, M. L. Scott, L.J. Martin, Lee S. Ischinger, C.A. Segelquist
1991, Report, South Platte River resource management: Finding a balance
No abstract available....
Geographic information systems
Water Resources Division, U.S. Geological Survey
1991, Report
No abstract available....
Designing state-wide stream surveys for multiple benefits
W.G. Layher, J.w. Terell, L.D. Zuckerman
1991, Report, Warmwater Fisheries Symposium
No abstract available....
Application and partial validation of a habitat model for moose in the Lake Superior region
A.W. Allen, J.W. Terrell, W.L. Mangus, E. L. Lindquist
1991, Alces (27) 50-64
A modified version of the dormant-season portion of a Habitat Suitability Index (HSI) model developed for assessing moose (Alces alces) habitat in the Lake Superior Region was incorporated in a Geographic Information System (GIS) for 490 km2 of Minnesota's Superior National Forest. Moose locations (n=235) were plotted during aerial surveys...
Water quality work plan for pipestone national monument
M.A. Harris, B.C. Kondratieff, T.P. Boyle
1991, Report, Report to Midwestern Regional Science Office
No abstract available....
Additions to the ichthyofauna of the Bahama Islands, with comments on endemic species
William F. Smith-Vaniz, Eugenia B. Bohlke
1991, Proceedings of the Academy of Natural Sciences of Philadelphia (143) 193-206
Literature records or other documentation are given for 57 species of shorefishes added to the Bahaman ichthyofauna since publication of Fishes of the Bahamas; included are 32 new species described or discovered since 1967. Known distribution is specified for each species, including extralimital ranges of non-endemics. Fourteen species are listed as...
An analysis of factors contributing to the stability of benthic macroinvertebrate communities in lotic ecosystems
T.P. Boyle, N.J. Hoefs
1991, Bulletin of the Ecological Society of America (72)
No abstract available....
Riparian vegetation of the Black Canyon of the Gunnison River, Colorado: composition and response to selected hydrologic regimes based on a direct gradient assessment model
Gregor T. Auble, Jonathan M. Friedman, Michael L. Scott
1991, Report
The Black Canyon of the Gunnison National Monument is located along the Gunnison River on the western slope of the Rocky Mountains in Montrose County, Colorado. The canyon is narrow because it is cut into resistant pre-Cambrian gneiss: it has a maximum depth of 900m and a minimum width of...
Directory of assistance centers of the National Water Data Exchange (NAWDEX)
Cassandra D. Blackwell
1991, Open-File Report 91-507
Types of maps
Water Resources Division, U.S. Geological Survey
1991, Report
This booklet lists some of the many types of maps and charts available from the Federal Government-from demographic maps to foreign aeronautical charts....
Physiology
E.H. Studier, Don E. Wilson
1991, Book chapter, Demography and natural history of the common fruit bat, Artibeus jamaicensis, on Barro Colorado Island, Panama
No abstract available....
Survival and relative abundance
A. L. Gardner, C.O. Handley Jr., Don E. Wilson
1991, Book, Demography and natural history of the common fruit bat, Artibeus jamaicensis, on Barro Colorado Island, Panama
No abstract available....
Fire regimes in subtropical south Florida
James R. Snyder
1991, Conference Paper
No abstract available....
Multiple outer-reef tracts along the south Florida bank margin: Outlier reefs, a new windward-margin model
Barbara H. Lidz, A. C. Hine, Eugene A. Shinn, Jack L. Kindinger
1991, Geology (19) 115-118
High-resolution seismic-reflection profiles off the lower Florida Keys reveal a multiple outlier-reef tract system ~0.5 to 1.5 km sea-ward of the bank margin. The system is characterized by a massive, outer main reef tract of high (28 m) unburied relief that parallels the margin and at least two narrower, discontinuous...
Reproduction on Barro Colorado Island
Don E. Wilson, C.O. Handley Jr., A. L. Gardner
1991, Book chapter, Demography and natural history of the common fruit bat, Artibeus jamaicensis, on Barro Colorado Island, Panama
No abstract available....
U-Th-Pb Isotopic Systematics of Lunar Norite 78235
Wayne R. Premo, M. Tatsumoto
1991, Conference Paper, Proceedings: 21st Lunar and planetary science conference
No abstract available....
The impact of introduced vectors and avian malaria on insular Passeriform bird populations in Hawaii
Charles van Riper III
1991, Bulletin of the Society of Vector Ecology (16) 59-83
No abstract available....
