Applying radar technology to migratory bird conservation and management: Strengthening and expanding a collaborative
Janet M. Ruth, Albert Manville, Ron Larkin, Wylie C. Barrow, Lori Johnson-Randall, Deanna K. Dawson, Robert H. Diehl, Yufang Wang, Richard S. Sojda, Rafal Angryk, Robert W. Klaver, Reggie Mead, John Paxton, Patricia J. Heglund, Eileen Kirsch, Manuel J. Suarez, Larry Robinson, Sidney A. Gauthreaux Jr., Carroll G. Belser, Steven J. Franke, Bruno Bruderer, Jeffrey J. Buler, Frank R. Moore, David S. Mizrahi, Robert Fogg, T. Adam Kelly, Paul M. Cryan, Tim Crum, Terry J. Schuur, Dave Krueper, Robb Diehl, Tom Will
Janet M. Ruth, editor(s)
2007, Open-File Report 2007-1361
Executive Summary Understanding the factors affecting migratory bird and bat populations during all three phases of their life cycle—breeding, nonbreeding, and migration—is critical to species conservation planning. This includes the need for information about these species’ responses to natural challenges, as well as information about the effects of human activities and...
Functional groups in a single pteridosperm species: Variability and circumscription (Pennsylvanian, Nova Scotia, Canada)
E.L. Zodrow, Maria Mastalerz
2007, International Journal of Coal Geology (70) 313-324
Multiple foliar specimens of the Late Pennsylvanian fossil pteridosperm [gymnosperm] Alethopteris zeilleri (Ragot) Wagner were collected from one restricted stratigraphical horizon in the Canadian Sydney Coalfield. Variability of functional-group distribution using FTIR technique was studied in compressions, adaxial versus abaxial cuticles, and in unseparated cuticles as a function of maceration...
Egg flotation estimates nest age for Pacific and Red-throated Loons
Daniel Rizzolo, Joel A. Schmutz
2007, Waterbirds (30) 207-213
We used Pacific Loon (Gavia pacifica) and Red-throated Loon (G. stellata) nests with known ages to gauge the efficacy of egg flotation for determining nest age in coastal Alaska. Egg flotation accurately estimated nest age for both species; the mean ± 1SD difference between known age and age determined with egg...
Flux and age of dissolved organic carbon exported to the Arctic Ocean: A carbon isotopic study of the five largest arctic rivers
P.A. Raymond, J.W. McClelland, R.M. Holmes, A.V. Zhulidov, K. Mull, B. J. Peterson, Robert G. Striegl, G. R. Aiken, T.Y. Gurtovaya
2007, Global Biogeochemical Cycles (21)
The export and Δ14C-age of dissolved organic carbon (DOC) was determined for the Yenisey, Lena, Ob', Mackenzie, and Yukon rivers for 2004–2005. Concentrations of DOC elevate significantly with increasing discharge in these rivers, causing approximately 60% of the annual export to occur during a 2-month period following spring ice breakup....
The effect of long-term spatiotemporal variations in urbanization-induced eutrophication on a benthic ecosystem, Osaka Bay, Japan
Moriaki Yasuhara, Hideo Yamazaki, Akira Tsujimoto, K. Hirose
2007, Limnology and Oceanography (52) 1633-1644
Detailed spatiotemporal patterns of the influence of urbanization-induced eutrophication on a metazoan benthic community in Osaka Bay were determined using sediment cores and fossil ostracode assemblages from the last 200 yr. Results suggest that total abundance of ostracodes increased in the middle part of the bay as a result of...
Shoreline change as a proxy for subaerial beach volume change
Amy S. Farris, Jeffrey H. List
2007, Journal of Coastal Research (23) 740-748
It is difficult and expensive to calculate changes in sediment volume for large sections of sandy beaches. Shoreline change could be a useful proxy for volume change because it can be collected quickly and relatively easily over long distances. In this paper, we summarize several studies that find a high...
Temporal patterns of diversity: Assessing the biotic and abiotic controls on ant assemblages
R.R. Dunn, C.R. Parker, N.J. Sanders
2007, Biological Journal of the Linnean Society (91) 191-201
In this study, we use 12 months of data from 11 ant assemblages to test whether seasonal variation in ant diversity is governed by either the structuring influences of interspecific competition or environmental conditions. Because the importance of competition might vary along environmental gradients, we also test whether the signature...
Efficacy of CPTH-treated egg baits for removing ravens
Peter S. Coates, Jack O. Spencer Jr., David J. Delehanty
2007, Human-Wildlife Conflicts (1) 224-234
Human-altered landscapes have provided resource subsidies for common ravens (Corvus corax) resulting in a substantial increase in raven abundance and distribution throughout the United States and Canada in the past 25 years. Ravens are effective predators of eggs and young of ground-nesting birds. During 2002–2005, we tested whether chicken egg baits...
Holocene climates and connections between the San Francisco Bay Estuary and its watershed: A review
F. Malamud-Roam, M. Dettinger, B. Lynn Ingram, Malcolm K. Hughes, Joan Florsheim
2007, San Francisco Estuary and Watershed Science (5)
Climate over the watershed of the San Francisco Bay Delta estuary system varies on a wide range of space and time scales, and affects downstream estuarine ecosystems. The historical climate has included mild to severe droughts and torrential rains accompanied by flooding, providing important lessons for present-day resource managers. Paleoclimate...
Increase in nuisance blooms and geographic expansion of the freshwater diatom Didymosphenia geminata
S. A. Spaulding, E. Elwell
2007, Open-File Report 2007-1425
The diatom Didymosphenia geminata (Lyngbye) Schmidt is emerging as an organism with an extraordinary capacity to impact stream ecosystems on a global scale. In recent years, streams in New Zealand, North America, Europe, and Asia have been colonized by unprecedented masses of “didymo” and its extracellular stalks (fig. 1). This...
Nitrification in the euphotic zone as evidenced by nitrate dual isotopic composition: Observations from Monterey Bay, California
Scott D. Wankel, Carol Kendall, J.T. Pennington, Francisco P. Chavez, Adina Paytan
2007, Global Biogeochemical Cycles (21)
Coupled measurements of nitrate (NO3−), nitrogen (N), and oxygen (O) isotopic composition (δ15NNO3 and δ18ONO3) were made in surface waters of Monterey Bay to investigate multiple N cycling processes occurring within surface waters. Profiles collected throughout the year at three sites exhibit a wide range of values, suggesting simultaneous...
Spatial and temporal variations in silver contamination and toxicity in San Francisco Bay
A.R. Flegal, Cynthia L. Brown, S. Squire, J.R.M. Ross, G.M. Scelfo, S. Hibdon
2007, Environmental Research (105) 34-52
Although San Francisco Bay has a "Golden Gate", it may be argued that it is the "Silver Estuary". For at one time the Bay was reported to have the highest levels of silver in its sediments and biota, along with the only accurately measured values of silver in solution, of...
The National Elevation Dataset
D.B. Gesch
D. Maune, editor(s)
2007, Book chapter, Digital elevation model technologies and applications—the DEM users manual
No abstract available....
Assessing urban growth with subpixel impervious surface coverage
G. Xian
Q. Weng, D.A. Quattrochi, editor(s)
2007, Book chapter, Urban remote sensing
No abstract available....
Remote sensing and monitoring for the convention on biological diversity
H. Strand, E. A. Fosnight, P. Herkenrath, R. Hoft
H.E. Strand, R. Hoft, J. Strittholt, L. Miles, N. Horning, E. A. Fosnight, W. Turner, editor(s)
2007, Book chapter, Sourcebook on remote sensing and biodiversity indicators, CBD Technical Series, 32
No abstract available....
Mammal inventories for eight National Parks in the Southern Colorado Plateau Network
Michael A. Bogan, Keith Geluso, Shauna Haymond, Ernest W. Valdez
2007, Natural Resource Technical Report NPS/SCPN/NRTR-2007/054
Historically, the Colorado Plateau has been the subject of many geological and biological explorations. J. W. Powell explored and mapped the canyon country of the Colorado River in 1869 (Powell 1961). C. H. Merriam, V. Bailey, M. Cary, and other employees of the Bureau of Biological Survey conducted biological explorations...
Qualitative evaluation of rock weir field performance and failure mechanisms
David M. Mooney, Christopher L. Holmquist-Johnson, Elaina Holburn
2007, Report
River spanning loose-rock structures provide sufficient head for irrigation diversion, permit fish passage over barriers, protect banks, stabilize degrading channels, activate side channels, reconnect floodplains, and create in-channel habitat. These structures are called by a variety of names including rock weirs, alphabet (U-, A-, V-, W-) weirs, Jhooks, and rock...
Chromosome painting in the manatee supports Afrotheria and Paenungulata
Margaret E. Kellogg, Sandra Burkett, Thomas R. Dennis, Gary Stone, Brian A. Gray, Peter M. McGuire, Roberto T. Zori, Roscoe Stanyon
2007, BMC Evolutionary Biology (7)
Background Sirenia (manatees, dugongs and Stellar's sea cow) have no evolutionary relationship with other marine mammals, despite similarities in adaptations and body shape. Recent phylogenomic results place Sirenia in Afrotheria and with elephants and rock hyraxes in Paenungulata. Sirenia and Hyracoidea are the two afrotherian orders as...
Talc-bearing serpentinite and the creeping section of the San Andreas fault
Diane E. Moore, M. J. Rymer
2007, Nature (448) 795-797
The section of the San Andreas fault located between Cholame Valley and San Juan Bautista in central California creeps at a rate as high as 28 mm yr-1 (ref. <a id="ref-link-section-d91208880e316" title="Titus, S. J., DeMets, C. & Tikoff, B. Thirty-five-year creep rates for the creeping segment of the San Andreas...
USGS National Wildlife Health Center's Quarterly Wildlife Mortality Report (North America)
M. Jankowski, K. Schuler, J. Bradsby
2007, Supplement to the Journal of Wildlife Diseases (43)
USGS National Wildlife Health Center's Quarterly Mortality Report
K. A. Converse, G. McLaughlin
2007, Supplement to the Journal of Wildlife Diseases (43)
Ages and origins of rocks of the Killingworth dome, south-central Connecticut: Implications for the tectonic evolution of southern New England
J. N. Aleinikoff, R. P. Wintsch, R.P. Tollo, D.M. Unruh, C.M. Fanning, M.D. Schmitz
2007, American Journal of Science (307) 63-118
The Killingworth dome of south-central Connecticut occurs at the southern end of the Bronson Hill belt. It is composed of tonalitic and trondhjemitic orthogneisses (Killingworth complex) and bimodal metavolcanic rocks (Middletown complex) that display calc-alkaline affinities. Orthogneisses of the Killingworth complex (Boulder Lake gneiss, 456 ?? 6 Ma; Pond Meadow...
Comparison of 15 evaporation methods applied to a small mountain lake in the northeastern USA
Donald O. Rosenberry, Thomas C. Winter, D.C. Buso, G.E. Likens
2007, Journal of Hydrology (340) 149-166
Few detailed evaporation studies exist for small lakes or reservoirs in mountainous settings. A detailed evaporation study was conducted at Mirror Lake, a 0.15 km2 lake in New Hampshire, northeastern USA, as part of a long-term investigation of lake hydrology. Evaporation was determined using 14 alternate evaporation methods during six...
Evidence of CFC degradation in groundwater under pyrite-oxidizing conditions
L.A. Sebol, W.D. Robertson, Eurybiades Busenberg, Niel Plummer, M.C. Ryan, S.L. Schiff
2007, Journal of Hydrology (347) 1-12
A detailed local-scale monitoring network was used to assess CFC distribution in an unconfined sand aquifer in southwestern Ontario where the zone of 1–5-year-old groundwater was known with certainty because of prior use of a bromide tracer. Groundwater ⩽5 years old was confined to an aerobic zone at ⩽5 m depth and had CFC concentrations...
Habitat connectivity and ecosystem productivity: implications from a simple model.
James E. Cloern
2007, American Naturalist (169) E22-E33
The import of resources (food, nutrients) sustains biological production and food webs in resource-limited habitats. Resource export from donor habitats subsidizes production in recipient habitats, but the ecosystem-scale consequences of resource translocation are generally unknown. Here, I use a nutrient-phytoplankton-zooplankton model to show how dispersive connectivity between a shallow autotrophic...
