Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16786
Mute swans and their Chesapeake Bay habitats: proceedings of a symposium
The symposium 'Mute Swans and their Chesapeake Bay Habitats,' held on June 7, 2001, provided a forum for biologists and managers to share research findings and management ideas concerning the exotic and invasive mute swan (Cygnus olar). This species has been increasing in population size and is considered by many to be a problem in regard to natural food resources in the Bay that are used by nati
On the relationships of 'Marmosa' formosa Shamel, 1930 (Marsupialia: Didelphidae), a phylogenetic puzzle from the Chaco of northern Argentina
The holotype and only known specimen of Marmosa formosa Shamel, a nominal species currently synonymized with Gracilinanus agilis Burmeister, is strikingly unlike any other known didelphid marsupial. Phylogenetic analyses based on nonmolecular characters and IRBP sequences suggest that formosa is either the sister-taxon of Thylamys (including Lestodelphys) or Monodelphis. Because neither alternativ
Authors
Robert S. Voss, Afred L. Gardner, Sharon A. Jansa
Water-quality and amphibian population data for Maryland, Washington, D.C., and Virginia, 2001-2004
Data on the chemical composition of water and on amphibian populations were collected at least annually from vernal pool and stream sites in Maryland, Washington, D.C., and Virginia, from 2001 through 2004. The data were collected as part of long-term monitoring projects of the Northeast Region of the Amphibian Research and Monitoring Initiative (ARMI) of the U.S. Geological Survey. Water samples
Authors
K.C. Rice, R.E. Jung
Population dynamics of the California Spotted Owl (Strix occidentalis occidentalis): a meta-analysis
We conducted a meta-analysis to provide a current assessment of the population characteristics of California Spotted Owls (Strix occidentalis occidentalis) resident on four study areas in the Sierra Nevada and one study area in southern California. Our meta-analysis followed rigorous a priori analysis protocols, which we derived through extensive discussion during a week-long analysis workshop. B
Authors
A.B. Franklin, R. J. Gutierrez, J. D. Nichols, M.E. Seamans, Gary C. White, G.S. Zimmerman, J. E. Hines, T.E. Munton, W.S. LaHaye, J.A. Blakesley, G.N. Steger, B.R. Noon, D.W.H. Shaw, J.J. Keane, T. L. McDonald, S. Britting
Occupancy estimation and modeling for rare and elusive populations
No abstract available.
Authors
D.I. MacKenzie, J. Andrew Royle, J.A. Brown, J. D. Nichols
Indexes as surrogates to abundance for low-abundance species
No abstract available.
Authors
P.B. Conn, L.L. Bailey, J.R. Sauer
Whole-ecosystem experiments: replication and arguing from error: commentary
No abstract available.
Authors
W. A. Link
Photographic sampling of elusive mammals in tropical forests
No abstract available.
Authors
K. U. Karanth, J. D. Nichols, S. Kumar
Long-term population studies at Patuxent Wildlife Research Refuge
No abstract available.
Authors
P. Henry
Biological control of ticks
Ticks have numerous natural enemies, but only a few species have been evaluated as tick biocontrol agents (BCAs). Some laboratory results suggest that several bacteria are pathogenic to ticks, but their mode of action and their potential value as biocontrol agents remain to be determined. The most promising entomopathogenic fungi appear to be Metarhizium anisopliae and Beauveria bassiana, strain
Authors
M. Samish, H. Ginsberg, I. Glazer
Invasive herbivory: resident Canada geese and the decline of wild rice along the tidal Patuxent River
While concern grows over the increasing numbers of exotic mute swans (Cygnus olor) on the Chesapeake Bay, less attention seems to be given to the highly familiar and native Canada goose (Branta canadensis) which has over time developed unprecedented nonmigratory, or resident, populations. Although nuisance flocks of Canada geese have been well advertised at city parks, athletic fields, and golf co
Authors
G. Michael Haramis, Gregory D. Kearns