Remagnetization and northward coastwise transport of Franciscan Complex rocks, northern California: A reinterpretation of the paleomagnetic data
Jonathan T. Hagstrum
1990, Tectonics (9) 1221-1233
Previous paleomagnetic studies of accreted oceanic rocks within the Franciscan Complex of northern California have concluded that these rocks originated far to the south of their present positions with respect to the North American continent. Based on positive “fold” tests, the characteristic remanent magnetizations were inferred to predate accretion-related deformation...
Breeding biology and nesting success of palila
S.M. Pletschet, J.F. Kelly
1990, Condor (92) 1012-1021
We studied the breeding biology of Palila (Loxioides bailleui ) at 85 nests from 20 April to 14 September 1988. Eggs were laid over a 139-day period and incubation averaged 16.6 days. The female incubated 85.2% of daylight hours and males fed incubating females. Modal clutch size was 2 (x...
Comparisons of patch-use models for wintering American tree sparrows
M.W. Tome
1990, The Auk (107) 210-211
Optimal foraging theory has stimulated numerous theoretical and empirical studies of foraging behavior for >20 years. These models provide a valuable tool for studying the foraging behavior of an organism. As with any other tool, the models are most effective when properly used. For example, to obtain a robust test...
The influence of social and endocrine factors on urine-marking by captive wolves (Canis lupus)
C. S. Asa, L.D. Mech, U.S. Seal, E.D. Plotka
1990, Hormones and Behavior (24) 497-509
Although serum hormones varied seasonally in all adult animals, only dominant male and female wolves urine-marked. Serum testosterone and urine-marking rates, which increased during the fall/winter breeding season, were positively correlated in both male and female dominant wolves. Estradiol, which increased in conjunction with proestrus and estrus, was not correlated...
Capture-recapture estimation of prebreeding survival rate for birds exhibiting delayed maturation
J.D. Nichols, J. A. Spendelow, J.E. Hines
1990, Journal of Field Ornithology (61) 347-354
Many species of seabirds exhibit delayed maturity and do not return to the natal colony to breed for several years after fledging. Capture-recapture studies are frequently conducted at such breeding colonies and often include marking of young birds. However, because of the absence of these birds from the...
Ecology, behavior, and conservation of the Poo-uli (Melamprosops phaeosoma)
Stephen Mountainspring, T.L.C. Casey, C. B. Kepler, J. M. Scott
1990, The Wilson Bulletin (102) 109-122
Studies of the population density, habitat structure, foraging behavior, and activity budgets of the Poo-uli (Melamprosops phaeosoma) were conducted intermittently between 1973 and 1985 in a 50-ha study area in the upper Hanawi watershed, island of Maui, Hawaii. Poo-uli have apparently declined in density on this site by 80% from...
Flexible models for analysing ring recovery data to estimate survival rates
M.J. Conroy, J.E. Hines
1990, Ring (13) 173-192
We describe MULT, a flexible procedure for analysing ring recovery data. The procedure starts with parametric structures similar to, but more general than, those described by Brownie et al. (1985). Particular models, including those in Brownie et al. (1965), can be obtained by imposing constraints on the general parametric structures....
Raptor road surveys in South America
D. H. Ellis, R.L. Glinski, D.G. Smith
1990, Journal of Raptor Research (24) 98-106
Twenty-six (23 traveling and three point) raptor roadside surveys were conducted during a 29,000 km expedition through nine nations of South America. During roadside surveys, we tallied 41 of the 87 (47%) diurnal raptor species (including vultures) that occur in South America. The number of species observed per route varied...
Modeling and the management of migratory birds
B. Kenneth Williams, J.D. Nichols
1990, Natural Resource Modeling (4) 273-311
Mathematical modeling of migratory bird populations is reviewed in the context of migratory bird management. We focus on dynamic models of waterfowl, since most management-oriented migratory bird models concern waterfowl species. We describe the management context for these modeling efforts, with a focus on large-scale operational data collection programs and...
Brain cholinesterase inhibition in songbirds from pecan groves sprayed with phosaline and disulfoton
Donald H. White, J.T. Seginak
1990, Journal of Wildlife Diseases (26) 103-106
Brain cholinesterase (ChE) activities of songbirds collected in pecan groves 6 to 7 hr after separate applications of the organophosphorus pesticides, phosalone and disulfoton, were compared to mean ChE activities of controls (normals) as a measure of insecticide exposure. In general, reduction of...
Age and origin of Cretaceous planktonic foraminifers from limestone of the Franciscan Complex near Laytonville, California
W.V. Sliter, I. Premoli-Silva
1990, Paleoceanography and Paleoclimatology (5) 639-667
Detailed planktonic foraminiferal biostratigraphy from eight measured sections of Cretaceous limestone near Laytonville, California, indicates a composite sequence that extends in age from late Albian to early Turonian. The sequence contains seven biozones and two subzones based on the first and last appearance datums of planktonic foraminifers examined in thin...
Statistical inference for capture-recapture experiments
Kenneth H. Pollock, James D. Nichols, Cavell Brownie, James E. Hines
1990, Book, Wildlife Monographs
This monograph presents a detailed, practical exposition on the design, analysis, and interpretation of capture-recapture studies. The Lincoln-Petersen model (Chapter 2) and the closed population models (Chapter 3) are presented only briefly because these models have been covered in detail elsewhere. The Jolly- Seber open population model, which...
Wood duck population trends from the North American Breeding Bird Survey
J.R. Sauer, Sam Droege
Leigh H. Fredrickson, George V. Burger, Stephen P. Havera, David A. Graber, Ronald E. Kirby, T. Scott Taylor, editor(s)
1990, Book chapter, The 1988 North American Wood Duck Symposium
The North American Breeding Bird Survey (BBS) has been conducted yearly since 1966, and can be used to describe relative population density and trends of birds in North America north of Mexico. Wood ducks (Air sponsa) are difficult to survey using conventional waterfowl monitoring techniques, but a large portion of...
Estimation of annual indices from roadside surveys
J.R. Sauer, P.H. Geissler
J.R. Sauer, Sam Droege, editor(s)
1990, Report, Survey Designs and Statistical Methods for the Estimation of Avian Population Trends
Most of the surveys presently used to estimate population trends on a large geographic scale depend upon repeated visits to a number of randomly selected routes or monitoring points. As these surveys cannot be analyzed by modeling annual mean densities among routes within a region, no natural annual index of...
Role of heat and detachment in continental extension as viewed from the eastern basin and range province in Arizona
Ivo Lucchitta
1990, Tectonophysics (174) 77-114
The Bill Williams River area of west-central Arizona includes not only the Rawhide-Buckskin metamorphic core complex, which is part of the lower Colorado River highly extended terrane (HET), but also the boundary between the extended terranes of the Basin and Range Province and the less deformed Arizona Transition Zone/Colorado Plateau....
Continental extension, magmatism and elevation; formal relations and rules of thumb
Arthur H. Lachenbruch, Paul Morgan
1990, Tectonophysics (174) 39-62
To investigate simplified relations between elevation and the extensional, magmatic and thermal processes that influence lithosphere buoyancy, we assume that the lithosphere floats on an asthenosphere of uniform density and has no flexural strength. A simple graph relating elevation to lithosphere density and thickness provides an overview of expectable conditions...
Pre- and poststack migration of GLIMPCE reflection data
Bernd Milkereit, Alan G. Green, Myung W. Lee, Warren F. Agena, Carl Spencer
1990, Tectonophysics (173) 1-13
GLIMPCE deep Seismic reflection profiles across the Midcontinent Rift System beneath Lake Superior reveal a central asymmetric rift with an enormous thickness of volcanic and sedimentary rocks. True amplitude cmp-processing, poststack and prestack migration and forward modelling are used to improve images of steeply dipping faults, unconformities and other discontinuities...
Variations in fluvial deposition on an alluvial plain: An example from the Tongue River Member of the Fort Union Formation (Paleocene), southeastern Powder River Basin, Wyoming, U.S.A.
E. A. Johnson, F. W. Pierce
1990, Sedimentary Geology (69) 21-36
The Tongue River Member of the Paleocene Fort Union Formation is an important coal-bearing sedimentary unit in the Powder River Basin of Wyoming and Montana. We studied the depositional environments of a portion of this member at three sites 20 km apart in the southeastern part of the basin. Six...
Expression of seasonal and ENSO forcing in climatic variability at lower than ENSO frequencies: Evidence from Pleistocene marine varves off California
R.Y. Anderson, B.K. Linsley, J.V. Gardner
1990, Palaeogeography, Palaeoclimatology, Palaeoecology (78) 287-300
Upper Pleistocene marine sediments along the upper continental slope off northern and central California contain alternations of varved and bioturbated sediments and associated changes in biota and sediment composition. These alternations can be related to conditions that accompany El Niño and anti-El Niño (ENSO) circulation. Anti-El Niño conditions are characterized...
Chronology of expansion and contraction of four great Basin lake systems during the past 35,000 years
L. V. Benson, D.R. Currey, R.I. Dorn, K. R. Lajoie, Charles G. Oviatt, S.W. Robinson, G.I. Smith, S. Stine
1990, Palaeogeography, Palaeoclimatology, Palaeoecology (78) 241-286
During the past 35,000 years, Lake Bonneville, Lake Russell, and Lake Searles underwent a major period of lake-level change. The lakes were at moderate levels or dry at the beginning of the period and seem to have achieved highstands between about 15,000 and 13,500 yr B.P. The rise of Lake...
Dolomite dissolution rates and possible Holocene dedolomitization of water-bearing units in the Edwards aquifer, south-central Texas
R.G. Deike
1990, Journal of Hydrology (112) 335-373
Rates of dolomite dissolution can be used to test the concept, based on geomorphologic evidence, that a major part of the Edwards aquifer could have formed within the Holocene, a timeframe of approximately 10,000 years. During formation of the aquifer in the Edwards limestone (Cretaceous, Albian) of the Balcones fault...
Monitoring moisture storage in trees using time domain reflectometry
J. Constantz, F. Murphy
1990, Journal of Hydrology (119) 31-42
Laboratory and field tests were performed to examine the feasibility of using time domain reflectometry (TDR) to monitor changes in the moisture storage of the woody parts of trees. To serve as wave guides for the TDR signal, pairs of stainless steel rods (13 cm long, 0.32 cm in diameter,...
Topographic effects on flow path and surface water chemistry of the Llyn Brianne catchments in Wales
D.M. Wolock, G.M. Hornberger, T.J. Musgrove
1990, Journal of Hydrology (115) 243-259
Topographic shape is a watershed attribute thought to influence the flow path followed by water as it traverses a catchment. Flow path, in turn, may affect the chemical composition of surface waters. Topography is quantified in the hydrological model TOPMODEL as the relative frequency distribution of the index ln(atanB), where...
Storm-runoff generation in the Permanente Creek drainage basin, west central California - An example of flood-wave effects on runoff composition
K.M. Nolan, B. R. Hill
1990, Journal of Hydrology (113) 343-367
Variations in the isotopic and chemical composition of storm runoff in the 10.6-km2 Permanente Creek basin, Santa Clara County, California, indicate that changes in water composition lag behind changes in streamflow. This lag occurs even though field observations and rainfall-runoff modeling indicate that much of the storm runoff must be...
Theory and application of an approximate model of saltwater upconing in aquifers
C. McElwee, M. Kemblowski
1990, Journal of Hydrology (115) 139-163
Motion and mixing of salt water and fresh water are vitally important for water-resource development throughout the world. An approximate model of saltwater upconing in aquifers is developed, which results in three non-linear coupled equations for the freshwater zone, the saltwater zone, and the transition zone. The description of the...
