Migration and habitat preferences of Swainson's Hawks at an autumn stopover site in northwestern Texas
Carroll D. Littlefield, Douglas H. Johnson
2013, Journal of Raptor Research (47) 54-59
Unlike most raptors, the Swainson's Hawk (Buteo swainsoni) migrates long distances between breeding and wintering ranges, which elevates the importance of stopover sites for foraging. We conducted three years of fall surveys in the Southern High Plains of Texas. Migrant Swainson's Hawks moved through the area mostly between July and...
Improving understanding of near-term barrier island evolution through multi-decadal assessment of morphologic change
Erika E. Lentz, Cheryl J. Hapke, Hilary F. Stockdon, Rachel E. Hehre
2013, Marine Geology (337) 125-139
Observed morphodynamic changes over multiple decades were coupled with storm-driven run-up characteristics at Fire Island, New York, to explore the influence of wave processes relative to the impacts of other coastal change drivers on the near-term evolution of the barrier island. Historical topography was generated from digital stereo-photogrammetry and compared...
Survival and home-range size of Northern Spotted Owls in southwestern Oregon
Jason W. Schilling, Katie M. Dugger, Robert G. Anthony
2013, Journal of Raptor Research (47) 1-14
In the Klamath province of southwestern Oregon, Northern Spotted Owls (Strix occidentalis caurina) occur in complex, productive forests that historically supported frequent fires of variable severity. However, little is known about the relationships between Spotted Owl survival and home-range size and the characteristics of fire-prone, mixed-conifer forests of the Klamath...
Characterization and simulation of fate and transport of selected volatile organic compounds in the vicinities of the Hadnot Point Industrial Area and landfill
L. Elliott Jones, René J. Suárez-Soto, Barbara A. Anderson, Morris L. Maslia
2013, Report, Analyses and historical reconstruction of groundwater flow, contaminant fate and transport, and distribution of drinking water within the service areas of the Hadnot Point and Holcomb Boulevard Water Treatment Plants and vicinities, U.S. Marine Corps Base Camp Lejeune, North Carolina
This supplement of Chapter A (Supplement 6) describes the reconstruction (i.e. simulation) of historical concentrations of tetrachloroethylene (PCE), trichloroethylene (TCE), and benzene3 in production wells supplying water to the Hadnot Base (USMCB) Camp Lejeune, North Carolina (Figure S6.1). A fate and transport model (i.e., MT3DMS [Zheng and Wang 1999]) was...
Modeling lahar behavior and hazards
Vernon Manville, Jon J. Major, Sarah A. Fagents
2013, Book chapter, Modeling volcanic processes: the physics and mathematics of volcanism
Lahars are highly mobile mixtures of water and sediment of volcanic origin that are capable of traveling tens to > 100 km at speeds exceeding tens of km hr-1. Such flows are among the most serious ground-based hazards at many volcanoes because of their sudden onset, rapid advance rates, long...
Uncertainty in assessing the impacts of global change with coupled dynamic species distribution and population models
Erin Conlisk, Alexandra D. Syphard, Janet Franklin, Lorraine E. Flint, Alan L. Flint, Helen Regan
2013, Global Change Biology (19) 858-869
Concern over rapid global changes and the potential for interactions among multiple threats are prompting scientists to combine multiple modelling approaches to understand impacts on biodiversity. A relatively recent development is the combination of species distribution models, land‐use change predictions, and dynamic population models to predict the relative and combined...
SedPods: a low-cost coral proxy for measuring net sedimentation
Michael E. Field, Henry Chezar, Curt D. Storlazzi
2013, Coral Reefs (32) 155-159
Sediment derived from impaired watersheds is a major stressor to adjacent coral reefs globally. To better understand stresses generated by specific processes and events, many coral reef scientists seek to collect physical samples of settling particles and obtain reproducible information about net rates of sediment accumulation on coral reefs. Yet,...
ʻŌhiʻa Lehua rainforest: born among Hawaiian volcanoes, evolved in isolation: the story of a dynamic ecosystem with relevance to forests worldwide
Dieter Mueller-Dombois, James D. Jacobi, Hans Juergen Boehmer, Jonathan P. Price
2013, Book
In the early 1970s, a multidisciplinary team of forest biologists began a study of Hawaiian ecosystems under the International Biological Program (IBP). Research focus was on the intact native ecosystems in and around Hawai'i Volcanoes National Park, in particular the ʻŌhiʻa Lehua rainforest. Patches of dead ʻŌhiʻa stands had been...
Application and evaluation of electromagnetic methods for imaging saltwater intrusion in coastal aquifers: Seaside Groundwater Basin, California
Vanessa Nenna, Daan Herckenrather, Rosemary Knight, Nick Odlum, Darcy McPhee
2013, Geophysics (78) B77-B88
Developing effective resource management strategies to limit or prevent saltwater intrusion as a result of increasing demands on coastal groundwater resources requires reliable information about the geologic structure and hydrologic state of an aquifer system. A common strategy for acquiring such information is to drill sentinel wells near the coast...
Size distribution of Parkfield’s microearthquakes reflects changes in surface creep rate
Theresa Tormann, Stefan Wiemer, Sabrina Metzger, Andrew J. Michael, Jeanne L. Hardebeck
2013, Geophysical Journal International (193) 1474-1478
The nucleation area of the series of M6 events in Parkfield has been shown to be characterized by low b-values throughout the seismic cycle. Since low b-values represent high differential stresses, the asperity structure seems to be always stably stressed and even unaffected by the latest main shock in 2004....
Effect of long-term understory prescribed burning on standing and down dead woody material in dry upland oak forests
John A. Polo, S.W. Hallgren, David M. Leslie Jr.
2013, Forest Ecology and Management (291) 128-135
Dead woody material, long ignored or viewed as a nuisance for forest management, has gained appreciation for its many roles in the forest including wildlife habitat, nutrient storage and cycling, energy for trophic webs, protection of soil, fuel for fire and carbon storage. The growing interest in managing dead woody...
Evaluation of ISCCP multisatellite radiance calibration for geostationary imager visible channels using the moon
Thomas C. Stone, William B. Rossow, Joseph Ferrier, Laura M. Hinkelman
2013, IEEE Transactions on Geoscience and Remote Sensing (51) 1255-1266
Since 1983, the International Satellite Cloud Climatology Project (ISCCP) has collected Earth radiance data from the succession of geostationary and polar-orbiting meteorological satellites operated by weather agencies worldwide. Meeting the ISCCP goals of global coverage and decade-length time scales requires consistent and stable calibration of the participating satellites. For the...
Observed changes in phenology across the USA: A regional review for the 2013 National Climate Assessment, Great Plains Regional Information Sheet.
Stacey A. Leicht-Young, Carolyn A.F. Enquist, Jake F. Weltzin
2013, Report
This is one in a series of eight, geographic region-focused information sheets that summarizes documented changes in plant and animal phenology over the past century across the United States. This summary is based on long-term studies (10 years or more) published in the primary scientific literature since 2001. A forthcoming...
Groundwater influences on the distribution and abundance of riverine smallmouth bass, Micropterus dolomieu, in pasture landscapes of the midwestern USA
Shannon K. Brewer
2013, River Research and Applications (29) 269-278
This study examined how spring-flow (SF) contributions to streams related to the distribution and abundance of smallmouth bass Micropterus dolomieu in a predominately pasture landscape in Missouri, USA. Stream segments (N=13) with similar landscape characters were classified by SF volume into high SF (HSF) or low SF (LSF) groups. The...
Raman spectroscopy of efflorescent sulfate salts from Iron Mountain Mine Superfund Site, California
Pablo Sobron, Charles N. Alpers
2013, Astrobiology (13) 270-278
The Iron Mountain Mine Superfund Site near Redding, California, is a massive sulfide ore deposit that was mined for iron, silver, gold, copper, zinc, and pyrite intermittently for nearly 100 years. As a result, both water and air reached the sulfide deposits deep within the mountain, producing acid mine drainage...
Drought, deluge and declines: the impact of precipitation extremes on amphibians in a changing climate
Susan C. Walls, William J. Barichivich, Mary E. Brown
2013, Biology (2) 399-418
The Class Amphibia is one of the most severely impacted taxa in an on-going global biodiversity crisis. Because amphibian reproduction is tightly associated with the presence of water, climatic changes that affect water availability pose a particularly menacing threat to both aquatic and terrestrial-breeding amphibians. We explore the impacts that...
Observed changes in phenology across the USA: A regional review for the 2013 National Climate Assessment, Pacific Northwest Regional Information Sheet
Stacey A. Leicht-Young, Carolyn A.F. Enquist, Jake F. Weltzin
2013, Report
This is one in a series of eight, geographic region-focused information sheets that summarizes documented changes in plant and animal phenology over the past century across the United States. This summary is based on long-term studies (10 years or more) published in the primary scientific literature since 2001. A forthcoming...
Observed changes in phenology across the USA: A regional review for the 2013 National Climate Assessment, Midwest Regional Information Sheet
Stacey A. Leicht-Young, Carolyn A.F. Enquist, Jake F. Weltzin
2013, Report
This is one in a series of eight, geographic region-focused information sheets that summarizes documented changes in plant and animal phenology over the past century across the United States. This summary is based on long-term studies (10 years or more) published in the primary scientific literature since 2001. A forthcoming...
Response of anaerobic carbon cycling to water table manipulation in an Alaskan rich fen
E.S. Kane, M.R. Chivers, M.R. Turetsky, Claire C. Treat, D.G. Petersen, M. Waldrop, J.W. Harden, A. D. McGuire
2013, Soil Biology and Biochemistry (58) 50-60
To test the effects of altered hydrology on organic soil decomposition, we investigated CO2 and CH4 production potential of rich-fen peat (mean surface pH = 6.3) collected from a field water table manipulation experiment including control, raised and lowered water table treatments. Mean anaerobic CO2 production potential at 10 cm...
Observed changes in phenology across the USA: A regional review for the 2013 National Climate Assessment, Hawaii and Pacific Islands Regional Information Sheet
Stacey A. Leicht-Young, Carolyn A.F. Enquist, Jake F. Weltzin
2013, Report
This is one in a series of eight, geographic region-focused information sheets that summarizes documented changes in plant and animal phenology over the past century across the United States. This summary is based on long-term studies (10 years or more) published in the primary scientific literature since 2001. A forthcoming...
Observed changes in phenology across the USA: A regional review for the 2013 National Climate Assessment, Northeast Regional Information Sheet
Stacey A. Leicht-Young, Carolyn A.F. Enquist, Jake F. Weltzin
2013, Report
This is one in a series of eight, geographic region-focused information sheets that summarizes documented changes in plant and animal phenology over the past century across the United States. This summary is based on long-term studies (10 years or more) published in the primary scientific literature since 2001. A forthcoming...
Modeling sediment accumulation in North American playa wetlands in response to climate change, 1940-2100
Lucy Burris, Susan K. Skagen
2013, Climatic Change (117) 69-83
Playa wetlands on the west-central Great Plains of North America are vulnerable to sediment infilling from upland agriculture, putting at risk several important ecosystem services as well as essential habitats and food resources of diverse wetland-dependent biota. Climate predictions for this semi-arid area indicate reduced precipitation which may alter rates...
Observed changes in phenology across the USA: A regional review for the 2013 National Climate Assessment, Southwest Regional Information Sheet
Stacey A. Leicht-Young, Carolyn A.F. Enquist, Jake F. Weltzin
2013, Report
This is one in a series of eight, geographic region-focused information sheets that summarizes documented changes in plant and animal phenology over the past century across the United States. This summary is based on long-term studies (10 years or more) published in the primary scientific literature since 2001. A forthcoming...
Burial and exhumation of temperate bedrock reefs as elucidated by repetitive high-resolution sea floor sonar surveys: Spatial patterns and impacts to species' richness and diversity
Curt D. Storlazzi, Theresa A. Fregoso, Jared D. Figurski, Jan Freiwald, Steve I. Lonhart, David P. Finlayson
2013, Continental Shelf Research (55) 40-51
To understand how chronic sediment burial and scour contribute to variation in the structure of algal and invertebrate communities on temperate bedrock reefs, the dynamics of the substrate and communities were monitored at locations that experience sand inundation and adjacent areas that do not. Co-located benthic scuba-transect surveys and high-resolution...
Observed changes in phenology across the USA: A regional review for the 2013 National Climate Assessment, Alaska and the Arctic Regional Information Sheet
Stacey A. Leicht-Young, Carolyn A.F. Enquist, Jake F. Weltzin
2013, Report
This is one in a series of eight, geographic region-focused information sheets that summarizes documented changes in plant and animal phenology over the past century across the United States. This summary is based on long-term studies (10 years or more) published in the primary scientific literature since 2001. A forthcoming...
