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Macromoths of northwest forests and woodlands
The macromoths are a group of families within the order Lepidoptera. The macromoths in the woodlands and forests of the Pacific Northwest are represented by 1,200 species in 12 families: Arctiidae, Dioptidae, Drepanidae, Epiplemidae, Geometridae, Lasiocampidae, Lymantriidae, Noctuidae, Notodontidae, Saturniidae, Sphingidae, and Thyatiridae. In...
Miller, Jeffrey C.; Hammond, Paul C.Measurement of milt quality and factors affecting viability of fish spermatotzoa; Cryopreservation aquatic species
No abstract available at this time
Honeyfield, D.C.; Krise, W.F.Historical land cover changes in the Great Lakes Region
Two different methods of reconstructing historical vegetation change, drawing on General Land Office (GLO) surveys and fossil pollen deposits, are demonstrated by using data from the Great Lakes region. Both types of data are incorporated into landscape-scale analyses and presented through geographic information systems. Results from the two...
Sisk, Thomas D.; Cole, K.L.; Davis, M.B.; Stearns, F.; Guntenspergen, G.; Walker, K.Effects of wind turbines on upland nesting birds in Conservation Reserve Program grasslands
Grassland passerines were surveyed during summer 1995 on the Buffalo Ridge Wind Resource Area in southwestern Minnesota to determine the relative influence of wind turbines on overall densities of upland nesting birds in Conservation Reserve Program (CRP) grasslands. Birds were surveyed along 40 m fixed width transects that were placed along wind...
Leddy, K.L.; Higgins, K.F.; Naugle, D.E.Radiotelemetry to determine exposure and effects of organophosphorus insecticides on sage grouse
Brewer, Larry; Fagerstone, Kathleen; Blus, L. J.; Connelly, J.W.Suggestions for new and aspiring graduate students in wildlife science
The transition from an undergraduate to a graduate program can be a difficult experience for students. Many undergraduates are unfamiliar with the process of preparing for graduate school, especially the search for a graduate program. Once in graduate school, they may be unfamiliar with requirements (both written and unwritten) and...
Fischer, Richard A.; King, Sammy L.A model of northern pintail productivity and population growth rate
Our objective was to synthesize individual components of reproductive ecology into a single estimate of productivity and to assess the relative effects of survival and productivity on population dynamics. We used information on nesting ecology, renesting potential, and duckling survival of northern pintails (Anas acuta) collected on the Yukon-...
Flint, Paul L.; Grand, James B.; Rockwell, Robert F.Significance of stomach oil for reproduction in seabirds: An interspecies cross-fostering experiment
Stomach oil, a complex mixture of neutral dietary lipids, is a unique attribute of seabirds in the order Procellariiformes. With the exception of diving-petrels, all procellariiforms produce stomach oil and feed it to their young. We conducted an interspecies cross-fostering experiment on Bird Island, South Georgia, that was designed to reveal how...
Roby, Daniel D.; Taylor, Jan R. E.; Place, Allen R.Habitat use by nesting and brood rearing northern pintails on the Yukon-Kuskokwim Delta, Alaska
We studied habitat use by nesting and brood-rearing northern pintails (Anas acuta) on the coastal Yukon-Kuskokwim (Y-K) Delta, 1991-93. We used a digital habitat map constructed from color infrared aerial photos to assign habitat types to nest and brood locations and estimate habitat availability. Sixty-nine percent of females nested on slough...
Grand, James B.; Flint, Paul L.; Heglund, Patricia J.Proximate composition and energy density of some North Pacific forage fishes
Mature pelagic forage fish species (capelin, sand lance, squid) had greater lipid concentrations than juvenile age-classes of large demersal and pelagic fish species (walleye pollock, Pacific cod, Atka mackerel, greenling, prowfish, rockfish, sablefish). Myctophids preyed on by puffins have at least twice as much lipid per gram compared to mature...
van Pelt, Thomas I.; Piatt, John F.; Lance, Brian K.; Roby, Daniel D.Nesting success of Northern Pintails on the coastal Yukon-Kuskokwim Delta, Alaska
We studied nesting chronology and success of Northern Pintails (Anas acuta) on the coastal Yukon-Kuskokwim Delta, Alaska during the summers of 1991-1993. We found a total of 795 nests during three annual searches of a 27.4 km2 area. Minimum nest density averaged 9.67 nests per km2. Nesting success varied among years and ranged from 43.12% in 1991...
Flint, Paul L.; Grand, James B.Renesting ecology of northern pintails on the Yukon-Kuskokwim Delta, Alaska
We used radio telemetry to study renesting by wild, free-ranging Northern Pintails (Anas acuta) on the coastal Yukon-Kuskokwim Delta in 1994 and 1995. Fifty-six percent of females (n = 39) renested at least once. Propensity to renest declined among females that initiated later first nests. Renesting interval was not related to female weight, year...
Grand, James B.; Flint, Paul L.