Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
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
Osmoregulatory actions of the GH/IGF axis in non-salmonid teleosts Osmoregulatory actions of the GH/IGF axis in non-salmonid teleosts
Salmonid fishes provided the first findings on the influence of the growth hormone (GH)/insulin-like growth factor I (IGF-I) axis on osmoregulation in teleost fishes. Recent studies on non-salmonid species, however, indicate that this physiological action of the GH/IGF-I axis is not restricted to salmonids or anadromous fishes. GH-producing cells in the pituitary of fish acclimated to...
Authors
J. M. Mancera, S. D. McCormick
A classification of quaternary dating methods A classification of quaternary dating methods
No abstract available.
Authors
S.M. Colman, K. L. Pierce
Major occurrences and reservoir concepts of marine clathrate hydrates: Implications of field evidence Major occurrences and reservoir concepts of marine clathrate hydrates: Implications of field evidence
This paper is part of the special publication Gas hydrates: relevance to world margin stability and climatic change (eds J.P. Henriet and J. Mienert). Questions concerning clathrate hydrate as an energy resource, as a factor in modifying global climate and as a triggering mechanism for mass movements invite consideration of what factors promote hydrate concentration, and what the...
Authors
J.S. Booth, W.J. Winters, William P. Dillon, M. B. Clennell, M.M. Rowe
Delineation of contributing areas to selected public-supply wells, western Cape Cod, Massachusetts Delineation of contributing areas to selected public-supply wells, western Cape Cod, Massachusetts
No abstract available.
Authors
John P. Masterson, Donald A. Walter, Denis R. LeBlanc
Water quality in the Connecticut, Housatonic, and Thames River basins, Connecticut, Massachusetts, New Hampshire, New York, and Vermont, 1992-95 Water quality in the Connecticut, Housatonic, and Thames River basins, Connecticut, Massachusetts, New Hampshire, New York, and Vermont, 1992-95
No abstract available.
Authors
Stephen P. Garabedian, J.F. Coles, S. J. Grady, E.C.T. Trench, M.J. Zimmerman
Relation of algal biomass to characteristics of selected streams in the Lower Susquehanna River basin Relation of algal biomass to characteristics of selected streams in the Lower Susquehanna River basin
Seven small tributary streams with drainage areas ranging from 12.6 to 71.9 square miles, representative of both limestone and freestone settings, in the Lower Susquehanna River Basin were sampled for algae, nutrients, water quality, habitat, land use, hydrology, fish, and invertebrates. Nutrients, site characteristics, and selected characteristics of the invertebrate and fish...
Authors
Robin A. Brightbill, Michael D. Bilger