Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16740
Reproduction and environmental contamination in tree swallows nesting in the Fox River drainage and Green Bay, Wisconsin, USA Reproduction and environmental contamination in tree swallows nesting in the Fox River drainage and Green Bay, Wisconsin, USA
Concentration, accumulation, and effects of polychlorinated biphenyls (PCBs) o nreproduction in tree swallows (Tachycineta bicolor) were studied at four sites in the Fox River drainage and in Green Bay, Lake Michigan, Wisconsin, USA, in 1994 and 1995. Total PCBs in eggs and newly hatched young (mean = 3.01 μg/g wet weight, years and sites combined) and 12-d-old nestlings (mean = 2.34 μg...
Authors
Christine M. Custer, Thomas W. Custer, P. David Allen, Kenneth L. Stromborg, Mark J. Melancon
Predaceous diving beetles in Maine: Faunal list and keys to subfamilies Predaceous diving beetles in Maine: Faunal list and keys to subfamilies
Records of predaceous diving beetles (Coleoptera: Dytiscidae) collected in Maine are summarized. These records are augmented by field surveys of beetles in Aroostook Co., Maine during 1993-95. Keys to subfamilies are presented with color plates for selected species. A list of diving beetles that have been collected near Maine (state or province) is presented so that investigators will...
Authors
L.R. Boobar, P.J. Spangler, K.E. Gibbs, J. R. Longcore, K.M. Hopkins
The seventy-second Christmas bird count. 302. Southern Dorchester County, Md The seventy-second Christmas bird count. 302. Southern Dorchester County, Md
We located 511 Acadian Flycatcher (Empidonax virescens) nests in bottomland hardwood forest of eastern Arkansas. Microhabitat characteristics were measured and their relationship with nest success evaluated. Fifty-two percent of all nesting attempts resulted in predation. Attributes of nest placement were similar between successful and unsuccessful nests, although successful nests were...
Authors
R.R. Wilson, R.J. Cooper
Metal concentrations in aquatic macrophytes as influenced by soil and acidification Metal concentrations in aquatic macrophytes as influenced by soil and acidification
Bioavailability of metals to aquatic plants is dependent on many factors including ambient metal concentration, pH of soil or water, concentration of ligands, competition with other metals for binding sites, and mode of exposure. Plants may be exposed to metals through water, air, or soil, depending on growth form. This paper examines the influence of soil type under two regimens of...
Authors
D. W. Sparling, T. P. Lowe
Analysis of factors affecting population viability and reintroduction attempts of native mammals in Acadia National Park Analysis of factors affecting population viability and reintroduction attempts of native mammals in Acadia National Park
No abstract available.
Authors
M. Chilelli, B. Griffith, J.R. Gilbert, A.F. O'Connell
Effects of hunting on survival and habitat use by American Woodcock on breeding and migration areas Effects of hunting on survival and habitat use by American Woodcock on breeding and migration areas
No abstract available.
Authors
D.G. McAuley, J. R. Longcore, R.B. Allen, G.F. Sepik
Demography of forest birds in Panama: How do transients affect estimates of survival rates? Demography of forest birds in Panama: How do transients affect estimates of survival rates?
Estimates of annual survival rates for a multispecies sample of neotropical birds from Panama have proven controversial. Traditionally, tropical birds were thought to have high survival rates for their size, but analyses by Kart et al. (1990. Am. Nat. 136:277-91) contradicted that view, suggesting tropical birds may not have systematically high survival rates. A persistent criticism of...
Authors
J. D. Brawn, J.R. Karr, J.D. Nichols, W.D. Robinson
International impact research and management International impact research and management
To be sustainable, ecotourism requires the protection of natural environments and processes both from development and operation of the tourism infrastructure, and from the activities of ecotourists within protected areas. This book chapter reviews the international literature on the study of visitor or recreation-related resource impacts with special reference to ecotourism. Four case...
Authors
J. L. Marion, Y. Leung
Check-list of North American Birds: the species of birds of North America from the Arctic through Panama, including the West Indies and Hawaiian Islands Check-list of North American Birds: the species of birds of North America from the Arctic through Panama, including the West Indies and Hawaiian Islands
No abstract available.
Authors
R.C. Banks
Determination of phylogenetic relationships of Flavobacterinium psychrophilum (Flexibacterin psychrophilus), Flavobacterinium columnare (Flexibacterin columnaris), and Flexibacterin maritimus by sequence analysis of 16S ribosomal RNA genes amplified by po Determination of phylogenetic relationships of Flavobacterinium psychrophilum (Flexibacterin psychrophilus), Flavobacterinium columnare (Flexibacterin columnaris), and Flexibacterin maritimus by sequence analysis of 16S ribosomal RNA genes amplified by po
The nearly complete small subunit 16S ribosomal RNA (rRNA) gene sequence amplified by polymerase chain reaction was determined for Flavobacterium psychrophilum (formerly Flexibacter psychrophilus) by using automated nucleotide sequencing. The sequence was found to be 1,465 base pairs (bp) in length, a size consistent with previously determined sequences for 14 other bacterial species...
Authors
J.A. Bader, E. B. Shotts
A new view into the Cascadia subduction zone and volcanic arc: Implications for earthquake hazards along the Washington margin A new view into the Cascadia subduction zone and volcanic arc: Implications for earthquake hazards along the Washington margin
In light of suggestions that the Cascadia subduction margin may pose a significant seismic hazard for the highly populated Pacific Northwest region of the United States, the U.S. Geological Survey (USGS), the Research Center for Marine Geosciences (GEOMAR), and university collaborators collected and interpreted a 530-km-long wide-angle onshore-offshore seismic transect across the...
Authors
T. Parsons, A.M. Trehu, J.H. Luetgert, K. Miller, F. Kilbride, R.E. Wells, M. A. Fisher, E. Flueh, Uri S. ten Brink, N.I. Christensen