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Page 2563, results 64051 - 64075

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Discovery of 100-160-year-old iceberg gouges and their relation to halibut habitat in Glacier Bay, Alaska
P.R. Carlson, P.N. Hooge, G.R. Cochrane
2005, American Fisheries Society Symposium (41) 235-243
Side-scan sonar and multibeam imagery of Glacier Bay, Alaska, revealed complex iceberg gouge patterns at water depths to 135 m on the floor of Whidbey Passage and south to the bay entrance. These previously undiscovered gouges likely formed more than 100 years ago as the glacier retreated rapidly up Glacier...
Monitoring temporal change in riparian vegetation of Great Basin National Park
Erik A. Beever, David A. Pyke, Jeanne C. Chambers, Fred Landau, S.D. Smith
2005, Western North American Naturalist (65) 382-402
Disturbance in riparian areas of semiarid ecosystems involves complex interactions of pulsed hydrologic flows, herbivory, fire, climatic effects, and anthropogenic influences. We resampled riparian vegetation within ten 10-m × 100-m plots that were initially sampled in 1992 in 4 watersheds of the Snake Range, east central Nevada. Our finding of...
Factors affecting plant diversity during postfire recovery and succession of mediterranean-climate shrublands in California, USA
Jon E. Keeley, C. J. Fotheringham, Melanie Baer-Keeley
2005, Diversity and Distributions (11) 535-537
Plant community diversity, measured as species richness, is typically highest in the early post-fire years in California shrublands. However, this generalization is overly simplistic and the present study demonstrates that diversity is determined by a complex of temporal and spatial effects. Ninety sites distributed across southern California were studied for...
Morphometry, gross morphology and available histopathology in North Atlantic right whale (Eubalaena glacialis) mortalities (1970 to 2002)
M.J. Moore, A.R. Knowlton, S.D. Kraus, W.A. McLellan, R. K. Bonde
2005, Journal of Cetacean Research and Management (6) 199-214
Fifty-four right whale mortalities have been reported from between Florida, USA and the Canadian Maritimes from 1970 to 2002. Thirty of those animals were examined: 18 adults and juveniles, and 12 calves. Morphometric data are presented such that prediction of body weight is possible if the age, or one or...
Diseases of salamanders
K. A. Converse, D. E. Green
S.K. Majumdar, J.E. Huffman, F.J. Brenner, A.I. Panah, editor(s)
2005, Book chapter, Wildlife diseases: Landscape epidemiology, spatial distribution and utilization of remote sensing technology
Few diseases are reported in salamanders. Two notable exceptions are infections by Ranavirus and Ichthyophonus. Except for mortality events associated with ranaviruses in tiger salamanders (Ambystoma tigrinum) and spotted salamanders (A. maculatum), dieoffs of salamanders are rarely detected or reported. Diseases presented in this chapter are those encountered in free-living...
Plot shape effects on plant species diversity measurements
Jon E. Keeley, C. J. Fotheringham
2005, Journal of Vegetation Science (16) 249-256
Abstract. Question: Do rectangular sample plots record more plant species than square plots as suggested by both empirical and theoretical studies?Location: Grasslands, shrublands and forests in the Mediterranean-climate region of California, USA.Methods: We compared three 0.1-ha sampling designs that differed in the shape and dispersion of 1-m2 and 100-m2 nested...
Aggregate measures of ecosystem services: Can we take the pulse of nature?
L.A. Meyerson, Jill Baron, J. M. Melillo, R.J. Naiman, R.I. O’Malley, G. Orians, Margaret A. Palmer, Alexander S.P. Pfaff, S. W. Running, O.E. Sala
2005, Frontiers in Ecology and the Environment (3) 56-59
National scale aggregate indicators of ecosystem services are useful for stimulating and supporting a broad public discussion about trends in the provision of these services. There are important considerations involved in producing an aggregate indicator, including whether the scientific and technological capacity exists, how to address varying perceptions of the...
Alien plant dynamics following fire in Mediterranean-climate California shrublands
Jon E. Keeley, M. Baer-Keeley, C. J. Fotheringham
2005, Ecological Applications (15) 2109-2125
Over 75 species of alien plants were recorded during the first five years after fire in southern California shrublands, most of which were European annuals. Both cover and richness of aliens varied between years and plant association. Alien cover was lowest in the first postfire year in all plant associations...
Parasitism, productivity, and population growth: response of Least Bell's Vireos (Vireo bellii pusillus) and Southwestern Willow Flycatchers (Empidonax traillii extimus) to cowbird (Molothrus spp.) control
Barbara E. Kus, Mary J. Whitfield
2005, Ornithological Monographs (57) 16-27
Cowbird (Molothrus spp.) control is a major focus of recovery-oriented management of two endangered riparian bird species,the Least Bell's Vireo (Vireo bellii pusillus) and Southwestern Willow Flycatcher (Empidonax traillii extimus). During the past 20 years, annual trapping of cowbirds at Least Bell's Vireo and Southwestern Willow Flycatcher breeding sites has...
Diseases of tadpoles
K. A. Converse, D. E. Green
S.K. Majumdar, J.E. Huffman, F.J. Brenner, A.I. Panah, editor(s)
2005, Book chapter, Wildlife Diseases: Landscape Epidemiology, Spatial Distribution, and Utilization of Remote Sensing Technology
This chapter is devoted to the diseases of anuran larvae that cause morbidity( illness) and mortality (death). The purpose of this chapter is to describe diseases that may be encountered in free-living tadpoles of the United States and Canada. Much of the information in this chapter comes from unpublished diagnostic...
Bufo exsul (Myers, 1942): Black toad
Gary M. Fellers
Michael Lannoo, editor(s)
2005, Book chapter, Amphibian declines: The conservation status of United States species
No abstract available....
A synthesis of ecological and fish-community changes in Lake Ontario, 1970-2000
E.L. Mills, J.M. Casselman, R. Dermott, J.D. Fitzsimons, G. Gal, K. T. Holeck, J.A. Hoyle, O. E. Johannsson, B.F. Lantry, J.C. Makarewicz, E.S. Millard, I.F. Munawar, M. Munawar, R. O'Gorman, R.W. Owens, L. G. Rudstam, T. Schaner, T.J. Stewart
2005, Technical Report 67
We assessed stressors associated with ecological and fishcommunity changes in Lake Ontario since 1970, when the first symposium on Salmonid Communities in Oligotrophic Lakes (SCOL I) was held (J. Fish. Res. Board Can. 29: 613-616). Phosphorus controls implemented in the early 1970s were undeniably successful; lower food-web studies showed declines...
A surficial hydrogeologic framework for the Mid-Atlantic Coastal Plain
Scott W. Ator, Judith M. Denver, David E. Krantz, Wayne L. Newell, Sarah K. Martucci
2005, Professional Paper 1680
A surficial hydrogeologic framework was developed for the Mid-Atlantic Coastal Plain, from New Jersey through North Carolina. The framework includes seven distinct hydrogeologic subregions within which the primary natural physical factors affecting the flow and chemistry of shallow ground water and small streams are relatively consistent. Within most subregions, the...
Stakeholder survey results for Lake Umbagog National Wildlife Refuge: Completion report
Natalie R. Sexton, Susan C. Stewart, Lynne Koontz, Katherine D. Wundrock
2005, Open-File Report 2005-1378
Lake Umbagog is a newly established Refuge (in 1993) with an increasing visitation. Current visitation numbers are around 55,000 visits/year. Though limited visitor services are currently offered, additional services will be proposed in the CCP. The purpose of this survey is to assess interested publics' and stakeholders' satisfaction with existing...