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Page 3101, results 77501 - 77525

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Prey: Thamnophis hammondii (Two-striped Garter Snake)
E.L. Ervin, Robert N. Fisher
2001, Herpetological Review (32) 265-266
Pox infection has occurrcd in mourning doves in at least 8 states on 12 separate occasions. Unsuccessful attempts were made to transmit both fowl pox (chicken isolate) and passerine pox (cowbird isolate) to mourning doves....
Topography and flooding of coastal ecosystems on the Yukon-Kuskokwim Delta, Alaska: Implications for sea level rise
Torre Jorgenson, Craig R. Ely
2001, Journal of Coastal Research (17) 124-136
We measured surface elevations, stage of annual peak flooding, and sedimentation along 10 toposequences across coastal ecosystems on the Yukon-Kuskokwim (Y-K) Delta in western Alaska during 1994-1998 to assess some of the physical processes affecting ecosystem distribution. An ecotype was assigned to each of 566 points, and differences in elevations...
Estimation of brood and nest survival: Comparative methods in the presence of heterogeneity
Bryan F.J. Manly, Joel A. Schmutz
2001, Journal of Wildlife Management (65) 258-270
The Mayfield method has been widely used for estimating survival of nests and young animals, especially when data are collected at irregular observation intervals. However, this method assumes survival is constant throughout the study period, which often ignores biologically relevant variation and may lead to biased survival estimates. We examined...
Breeding bird response to juniper woodland expansion
Steven S. Rosenstock, Charles van Riper III
2001, Journal of Range Management (54) 226-232
In recent times, pinyon (Pinus spp.)-juniper (Juniperus spp.) woodlands have expanded into large portions of the Southwest historically occupied by grassland vegetation. From 1997-1998, we studied responses of breeding birds to one-seed juniper (J. monosperma) woodland expansion at 2 grassland study areas in northern Arizona. We sampled breeding birds in...
Contaminant profiles of two species of shorebirds foraging together at two neighboring sites in south San Francisco Bay, California
Clifford A. Hui, John Y. Takekawa, Sarah E. Warnock
2001, Environmental Monitoring and Assessment (71) 107-121
The San Francisco Bay estuary isused by over one million shorebirds during springmigration and is home to several hundred thousandduring the winter. Most shorebird use occurs in thesouthern reach of the estuary (South Bay). Thereduced water circulation and discharge fromindustrial sources in the South Bay are responsiblefor the highest levels...
Effects of gull predation and weather on survival of emperor goose goslings
Joel A. Schmutz, Bryan F.J. Manly, Christian P. Dau
2001, Journal of Wildlife Management (65) 248-257
Numbers of emperor geese (Chen canagica) have remained depressed since the mid-1980s. Despite increases in glaucous gulls (Larus hyperboreus), a primary predator of goslings, little information existed to assess whether recent patterns of gosling survival have been a major factor affecting population dynamics. We used observations of known families of...
Intraspecific variation in nutrient reserve use during clutch formation by Lesser Scaup
Daniel Esler, J. Barry Grand, Alan D. Afton
2001, The Condor-810
We studied nutrient reserve dynamics of female Lesser Scaup (Aythya affinis) to identify sources of intraspecific variation in strategies of nutrient acquisition for meeting the high nutritional and energetic costs of egg formation. We collected data from interior Alaska and combined these with data for Lesser Scaup from midcontinent breeding...
Drepanidine movements in relation to food availability in subalpine woodland on Mauna Kea, Hawai'i
Steven C. Hess, Paul C. Banko, Michelle H. Reynolds, Gregory J. Brenner, Leona P. Laniawe, James D. Jacobi
2001, Studies in Avian Biology (22) 154-163
Flowers of the mamane tree (Sophoru chrysophylla) are the primary nectar source for Hawaiian honeycreepers in subalpine woodland on Mauna Kea Volcano on the island of Hawai‘i. Mamane seeds are the primary food resource of the endangered Palila (Loxioides bailleui), which is now restricted to subalpine woodland on Mauna Kea....
Range expansion of pileated woodpecker in North Dakota
Jill A. Dechant
2001, Prairie Naturalist (33) 163-182
Natural history writings from explorers such as M. Lewis, W. Clark, J. J. Audubon, S. F. Baird, and E. Coues failed to mention the pileated woodpecker (Dryocopus pileatus ) in North Dakota throughout the 1800's. The first published reference to the species was in the early 1900's in the valley...
The Hawai'i rare bird search 1994-1996
Michelle H. Reynolds, Thomas J. Snetsinger
2001, Studies in Avian Biology (22) 133-143
We compiled the recent history of sightings and searched for 13 rare and missing Hawaiian forest birds to update status and distribution information. We made 23 expeditions between August 1994 and April 1996 on the islands of Hawai‘i, Maui, Moloka‘i, and Kaua‘i totaling 1,685 search hours, 146 field days, and...
[Book review] Wetlands, by W. J. Mitch and J. G. Gosselink
R.G. Boustany
2001, Journal of the American Water Resources Association (37) 479-481
Review of: Wetlands (Third Edition) / W.J. Mitch and J.G. Gosselink / John Wiley & Sons, Inc., 605 Third Avenue, New York, NY 10158-0012. 2000. 920 pages. ISBN 0-471-29232-X....
Field soil aggregate stability kit for soil quality and rangeland health evaluations
J. E. Herrick, W. G. Whitford, A. G. de Soyza, J. W. Van Zee, K. M. Havstad, C. A. Seybold, M. Walton
2001, Catena (44) 27-35
Soil aggregate stability is widely recognized as a key indicator of soil quality and rangeland health. However, few standard methods exist for quantifying soil stability in the field. A stability kit is described which can be inexpensively and easily assembled with minimal tools. It permits up to 18 samples to...
Organochlorine concentrations and eggshell thickness in failed eggs of the California Clapper rail from south San Francisco Bay
Steven E. Schwarzbach, John D. Henderson, Carmen Thomas, Joy D. Albertson
2001, Condor (103) 620-624
In 1992 we collected 22 failed California Clapper Rail (Rallus longirostris obsoletus) eggs from four tidal marshes of south San Francisco Bay for organochlorine analysis and determination of eggshell thickness. Mean eggshell thickness of these eggs (262 microns) was not statistically distinguishable from that of pre-1932 museum eggs (271 microns)....