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Page 3481, results 87001 - 87025

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Publication Extents

Not all publications have extents, not all extents are completely accurate
An analysis of relationships among climate forcing and time-integrated NDVI of grasslands over the U.S. northern and central Great Plains
Limin Yang, Bruce K. Wylie, Larry L. Tieszen, Bradley C. Reed
1998, Remote Sensing of Environment (65) 25-37
Time-integrated normalized difference vegetation index (TI NDVI) derived from the multitemporal satellite imagery (1989–1993) was used as a surrogate for primary production to investigate climate impacts on grassland performance for central and northern Great Plains grasslands. Results suggest that spatial and temporal variability in growing season precipitation, potential evapotranspiration, and...
West margin of North America - A synthesis of recent seismic transects
G. S. Fuis
1998, Tectonophysics (288) 265-292
A comparison of the deep structure along nine recent transects of the west margin of North America shows many important similarities and differences. Common tectonic elements identified in the deep structure along these transects include actively subducting oceanic crust, accreted oceanic/arc (or oceanic-like) lithosphere of Mesozoic through Cenozoic ages. Cenozoic...
The San Gabriel Mountains bright reflective zone: Possible evidence of young mid-crustal thrust faulting in southern California
T. Ryberg, G. S. Fuis
1998, Tectonophysics (286) 31-46
During the Los Angeles Region Seismic Experiment (LARSE), a reflection/refraction survey was conducted along a line extending northeastward from Seal Beach, California, to the Mojave Desert, crossing the Los Angeles basin and San Gabriel Mountains. Shots and receivers were spaced most densely through the San Gabriel Mountains for the purpose...
Higher temporal variability of forest breeding bird communities in fragmented landscapes
T. Boulinier, James D. Nichols, James E. Hines, John R. Sauer, Curtis H. Flather, Kenneth H. Pollock
1998, Proceedings of the National Academy of Sciences (95) 7497-7501
Understanding the relationship between animal community dynamics and landscape structure has become a priority for biodiversity conservation. In particular, predicting the effects of habitat destruction that confine species to networks of small patches is an important prerequisite to conservation plan development. Theoretical models that predict the occurrence of species in...
A key to the anuran tadpoles of the United States and Canada
R. Altig, R.W. McDiarmid, K.A. Nichols, P.C. Ustach
1998, Contemporary Herpetology Information Series (1998)
A key in a different format is presented for the tadpoles of the United States and Canada. More details of ontogenetic variation are included than in many keys and more attention is paid to identifying species by using characteristics of living tadpoles....
Retrospective study of the diagnostic criteria in a lead-poisoning survey of waterfowl
W. Nelson Beyer, J. Christian Franson, Lou N. Locke, R. K. Stroud, L. Sileo
1998, Archives of Environmental Contamination and Toxicology (35) 506-512
Between 1983 and 1986 the National Wildlife Health Center (NWHC) conducted a nationwide study of lead poisoning of waterfowl from federal and state refuges. This survey was done to assist in identifying zones with lead-poisoning problems. One thousand forty one moribund or dead waterfowl were collected and examined. The presence...
Ou (Psittirostra psittacea)
Thomas J. Snetsinger, Michelle H. Reynolds, Christina M. Herrmann
1998, Birds of North America No. 335
The ‘Ö‘ü and the Läna‘i Hookbill are plump, predominantly olive green, thick-billed Hawaiian honeycreepers. The ‘Ö‘ü is now very rare and restricted to remote, high-elevation native forest, and the Läna‘i Hookbill is extinct. They are closely related species, belonging to a specialized tribe, Psittirostrini, consisting of nine historically known Hawaiian...
Hydrology of Central Florida Lakes - A Primer
Donna M. Schiffer
1998, Circular 1137
INTRODUCTION Lakes are among the most valued natural resources of central Florida. The landscape of central Florida is riddled with lakeswhen viewed from the air, it almost seems there is more water than land. Florida has more naturally formed lakes than other southeastern States, where many lakes are created by building...
The Loma Prieta, California, earthquake of October 17, 1989: Landslides
David K. Keefer, Michael W. Manson, Gary B. Griggs, Nathaniel Plant, Robert L. Schuster, Gerald F. Wieczorek, David G. Hope II, Edwin Harp, J. M. Nolan, Gerald E. Weber, William F. Cole, Dale R. Marcum, Patrick O. Shires, Bruce R. Clark
David K. Keefer, editor(s)
1998, Professional Paper 1551-C
Central California, in the vicinity of San Francisco and Monterey Bays, has a history of fatal and damaging landslides, triggered by heavy rainfall, coastal and stream erosion, construction activity, and earthquakes. The great 1906 San Francisco earthquake (MS=8.2-8.3) generated more than 10,000 landslides throughout an area of 32,000 km2; these...
Status yields and trends of nutrients and sediment and methods of analysis for nontidal data-collection programs, Chesapeake Bay basin, 1985-96
Michael J. Langland, Robert E. Edwards, Linda C. Darrell
1998, Open-File Report 98-17
Data from more than 200 sites in nontidal portions of the Chesapeake Bay were compiled to document annual nutrient and sediment loads and trends for the period 1985 through 1996 as part of the 1997 Reevaluation of the Chesapeake Bay Program goal of reducing nutrient loads 40 percent by the year 2000. Annual...
Long-term hydrologic effects on marsh plant community structure in the southern Everglades
David E. Busch, W.F. Loftus, O. L. Bass Jr.
1998, Wetlands (18) 230-241
Although large-scale transformation of Everglades landscapes has occurred during the past century, the patterns of association among hydrologic factors and southern Everglades freshwater marsh vegetation have not been well-defined. We used a 10-year data base on the aquatic biota of Shark Slough to classify vegetation and describe...
Evaporation from a small prairie wetland in the Cottonwood Lake area, North Dakota - An energy-budget study
R.S. Parkhurst, T. C. Winter, D.O. Rosenberry, A.M. Sturrock
1998, Wetlands (18) 272-287
Evaporation from Wetland P1 in the Cottonwood Lake area of North Dakota, USA was determined by the energy-budget method for 1982–85 and 1987. Evaporation rates were as high as 0.672 cm day−1. Incoming solar radiation, incoming atmospheric radiation, and long-wave radiation emitted from the water body are the largest energy...
Diel acid fluctuations in C4 amphibious grasses
Jon E. Keeley
1998, Photosynthetica (35) 273-277
Orcuttieae is a small tribe of C4 grasses endemic to seasonal pools in the southwestern U.S., comprising the basal genus Neostapfia, Tuctoria, and the most derived group, Orcuttia. Growth is initiated underwater, and when pools dry, species undergo a metamorphosis replacing aquatic foliage with terrestrial foliage. O. californica and O....
Paleomagnetic evidence that the central block of Salinia (California) is not a far-traveled terrane
K.J. Whidden, S.P. Lund, D.J. Bottjer, D. Champion, D. G. Howell
1998, Tectonics (17) 329-343
New paleomagnetic results from Late Cretaceous (75–85 m.y.) red beds on the central block of Salinia indicate that Salinia was located within 6° (in latitude) of its current cratonal North American position during the Late Cretaceous (after correction for Neogene San Andreas Fault transport). The red beds formed as alluvial-fan...