Estimating connectivity of hard clam (Mercenaria mercenaria) and eastern oyster (Crassostrea virginica) larvae in Barnegat Bay
J.D. Goodwin, D.M. Munroe, Zafer Defne, Neil K. Ganju, James Vasslides
2019, Estuaries and Coasts (7)
Many marine organisms have a well-known adult sessile stage. Unfortunately, our lack of knowledge regarding their larval transient stage hinders our understanding of their basic ecology and connectivity. Larvae can have swimming behavior that influences their transport within the marine environment. Understanding the larval stage provides insight...
Assessment of site-specific agricultural Best Management Practices in the Upper East River watershed, Wisconsin, using a field-scale SWAT model
Katherine R. Merriman, Prasad Daggupati, Raghavan Srinivasan, Brett A. Hayhurst
2019, Journal of Great Lakes Research (3) 619-641
The Great Lakes “Priority Watershed” effort targeted the Upper East River watershed, a 116.5 km2 tributary watershed to Green Bay in Wisconsin, to reduce sediment and nutrients entering Green Bay. A Soil and Water Assessment Tool (SWAT) model was created to determine the effectiveness of Best Management Practices (BMPs) derived...
Recruitment dynamics and reproductive ecology of Blue Sucker in Texas, with a focus on the Big Bend region of the Rio Grande
Seiji Miyazono, Allison A. Pease, Timothy B. Grabowski, Sarah Fritts
2019, Cooperator Science Series CSS-134-2020
Blue Sucker Cycleptus elongatus is a state-listed threatened species in Texas and is considered vulnerable throughout its range. Once considered a single, wide-ranging species, blue suckers are now recognized as a complex of closely related, but genetically and morphologically distinct species within the genus Cycleptus, including an undescribed species within...
Spatio-temporal population change of Arctic-breeding waterbirds on the Arctic Coastal Plain of Alaska
Courtney L. Amundson, Paul L. Flint, Robert A Stehn, Robert Platte, Heather M. Wilson, William W. Larned, Julian B. Fischer
2019, Avian Conservation and Ecology (14)
Rapid physical changes that are occurring in the Arctic are primary drivers of landscape change and thus may drive population dynamics of Arctic-breeding birds. Despite the importance of this region to breeding and molting waterbirds, lack of a comprehensive analysis of historic data has hindered quantifying avian population change. We...
Constraining parameter uncertainty in modeling debris-flow initiation during the September 2013 Colorado Front Range storm
Rex L. Baum, C.R. Scheevel, Eric S. Jones
2019, Conference Paper, Debris-flow hazards mitigation: Mechanics, monitoring, modeling, and assessment; proceedings of the Seventh International Conference on Debris-Flow Hazards Mitigation, Golden, Colorado, USA, June 10-13, 2019
The occurrence of debris flows during the September 2013 northern Colorado floods took the emergency management community by surprise. The September 2013 debris flows in the Colorado Front Range initiated from shallow landslides in colluvium. Most occurred on south- and east-facing slopes on the walls of steep canyons in crystalline...
Review of Gulls simplified: A comparative approach to identification by Pete Dunne and Kevin T. Karlson
Garrett J. MacDonald
2019, Prairie Naturalist (51) 39-40
No abstract available....
Discriminating among Pacific salmon, Rainbow Trout, and Atlantic Salmon species using common genetic screening methods
Christopher Habicht, Andrew Barclay, Heather A. Hoyt, Christian T. Smith, Keith N. Turnquist, Wesley Larson
2019, Journal of Fish and Wildlife Management (10) 228-240
The five most common species of Pacific salmon, Rainbow Trout (steelhead) Oncorhynchus spp., and Atlantic Salmon Salmo salar intermingle in the North Pacific Ocean and its freshwater tributaries. Efficient morphological methods for distinguishing among these species are sometimes limited by condition of the specimen (degraded or missing morphology), life...
Bayesian analysis of the impact of rainfall data product on simulated slope failure for North Carolina locations
Soni Yatheendradas, Dalia Kirschbaum, Grey Nearing, Jasper A. Vrugt, Rex L. Baum, Rick Wooten, Ning Lu, Jonathan W. Godt
2019, Computational Geosciences (23) 495-522
In the past decades, many different approaches have been developed in the literature to quantify the load-carrying capacity and geotechnical stability (or the Factor of Safety, F_s) of variably saturated hillslopes. Much of this work has focused on a deterministic characterization of hillslope stability. Yet, simulated F_s values are subject...
USGS combats invasive species through citizen science
Wesley Daniel
2019, Newsletter
No abstract available....
Earthquake-induced chains of geologic hazards: Patterns, mechanisms, and impacts
Xuanmei Fan, Gianvito Scaringi, Oliver Korup, A. Joshua West, Cees J. van Westen, Hakan Tanyas, Niels Hovius, Tristram C Hales, Randall W. Jibson, Kate E. Allstadt, Limin Zhang, Stephen G. Evans, Chong Xu, Li, Xiangjun Pei, Qiang Xu, Runqiu Huang
2019, Reviews of Geophysics (57) 421-503
Large earthquakes initiate chains of surface processes that last much longer than the brief moments of strong shaking. Most moderate- and large-magnitude earthquakes trigger landslides, ranging from small failures in the soil cover to massive, devastating rock avalanches. Some landslides dam rivers and impound lakes, which can collapse days to...
Report on the workshop 'Global modelling of biodiversity and ecosystem services'
Sana Okayasu, Machteld Schoolenberg, Eefje den Belder, Ghassen Halouani, HyeJin Kim, Brian W. Miller
2019, Report
A three-day workshop on ‘Global Modelling of Biodiversity and Ecosystem Services’, was held in the Hague, Netherlands, from 24th to 26th June 2019. The workshop, attended by 35 modelling and scenario-building experts, was organised on behalf of the former IPBES1 expert group on scenarios and models of the first IPBES...
Salmon, forage fish, and kelp
Anne Shaffer, Dave Parks, Erik R. Schoen, David Beauchamp
2019, Frontiers in Ecology and the Environment (17) 258-258
Kelp beds are prominent features of northeast Pacific coastlines. They are seasonal in nature, as are the communities that use them. Here, juvenile and adult Chinook salmon (Oncorhynchus tshawytscha) – key components of northeast Pacific marine food webs that link plankton and forage fishes to endangered killer whales – have...
Modeling ash dispersal from future eruptions of Taupo supervolcano
Simon J Barker, Alexa R. Van Eaton, Larry G. Mastin, Colin JN Wilson, Mary Anne Thompson, Tom M Wilson, Cory Davis, James A Renwick
2019, Geochemistry, Geophysics, Geosystems (20) 3375-3401
Hazard analysis at caldera volcanoes is challenging due to the wide range of eruptive and environmental conditions that can plausibly occur during renewed activity. Taupo volcano, New Zealand, is a frequently active and productive rhyolitic caldera volcano that has hosted the world's youngest known supereruption and...
Comparison of beaver density estimates from aerial surveys of waterways versus transects
Shannon Barber-Meyer
2019, Canadian Wildlife Biology and Management (8) 9-16
Historic beaver-sign (Castor canadensis) survey flights were often conducted over waterways to maximize beaver detections. However, densities determined from strip transect surveys are more useful to compare across and within study areas than waterway indices based on observations per distance flown because transects are more representative of the wider landscape....
Wild canid distribution and co-existence in a natural–urban matrix of the Pioneer Valley of Western Massachusetts
Eric G. LeFlore, Todd K. Fuller, John T. Finn, John F. Organ, Stephen DeStefano
2019, Northeastern Naturalist (26) 325-342
Although development and urbanization are typically believed to have negative impacts on carnivoran species, some species can successfully navigate an urban matrix. Sympatric carnivorans compete for limited resources in urban areas, likely with system-specific impacts to their distributions and activity patterns. We used automatically triggered wildlife cameras to assess the...
Monitoring five-needle pine on Bureau of Land Management lands in Wyoming summary report for 2013, 2014, 2016, 2017
Erin Shanahan, Kristin Legg, Rob Daley, Kathryn Irvine, Siri Wilmoth, Joshua Jackson
2019, Report
Whitebark pine (Pinus albicaulis) grows at high elevations and in subalpine communities in the Pacific Northwest and Northern Rocky Mountains. Limber pine (Pinus flexilis) occurs in western North America across a broad elevational gradient from the Canadian Rocky Mountains into parts of New Mexico and Arizona and from southern California...
Surrogate model development for coastal dune erosion under storm conditions
Victor Malagon-Santos, Thomas Wahl, Joseph W Long, Davina Passeri, Nathaniel G. Plant
2019, Conference Paper, Proceedings of the 9th Coastal Sediments Conference
Early coastal dune erosion predictions are essential to avoid potential flood consequences but most dune erosion numerical models are computationally expensive, hence their application in Early Warning Systems is limited. Here, based on a combination of optimally sampled synthetic sea storms with a calibrated and validated XBeach model, we develop...
Late Quaternary vegetation development following deglaciation of northwestern Alexander Archipelago, Alaska
Thomas A. Ager
2019, Frontiers in Earth Science (7) 1-25
The Cordilleran Ice sheet covered most of southeastern Alaska during the Last Glacial Interval (LGI: Marine Isotope Stage 2). Ice began to recede from western Alexander Archipelago ~17,000 + 700 yr BP. In this study pollen analysis and radiocarbon dating of three sediment cores were used to reconstruct, for...
Handbook to the partners in flight population estimates database, version 3.0
Tom Will, Jessica C. Stanton, Kenneth V. Rosenberg, Arvind O. Panjabi, Alaine Camfield, Allison Shaw, Wayne E. Thogmartin, Peter J. Blancher
2019, Partners in Flight Technical Publication 7
This document describes the content of Version 3.0 of the Partners in Flight (PIF) Population Estimates Database, which provides population estimates for breeding USA/Canada landbirds at several geographic scales following the Partners in Flight approach described initially in Rich et al. (2004) and by Rosenberg and Blancher (2005) and most...
Using a GIS to populate 3D geocellular geologic models
Donald S. Sweetkind, Geoffrey Cromwell
2019, Conference Paper, Geologic Mapping Forum 2019 Abstracts
No abstract available...
Daily to decadal variability of beach morphology at NASA-Kennedy Space Center: Storm influences across timescales
Matthew P. Conlin, Peter N. Adams, Nathaniel Plant, John M. Jaeger, Richard Mackenzie
2019, Conference Paper, Coastal sediments 2019
Shoreline variability over timescales ranging from days to decades is examined at NASA-Kennedy Space Center on the Atlantic coast of Florida. Three sources of shoreline position data are utilized to complete this analysis: hourly video-image observations, monthly Real Time Kinematic GPS observations, and historical aerial imagery dating back to 1943....
Hawaiian hoary bat (Lasiurus cinereus semotus) activity and prey availability at Kaloko-Honokohau National Historical Park
Kristina Montoya-Aiona, Corinna A. Pinzari, Frank J Bonaccorso
2019, Report
We examined habitat use and foraging activity of the endangered Hawaiian hoary bat (Lasiurus cinereus semotus), as well as nocturnal aerial insect abundance at Kaloko-Honōkohau National Historical Park located in the coastal region of Kailua-Kona, Hawai‘i Island. We evaluated bat activity in two habitat types, wooded shorelines beside brackish water...
Insights into pāhoehoe lava emplacement using visible and thermal structure-from-motion photogrammetry
Sebastien Biass, Tim R. Orr, Bruce F. Houghton, Matthew R. Patrick, Mike R. James, Nick Turner
2019, Journal of Geophysical Research: Solid Earth (124) 5678-5695
We present the evolution over 3 months of a 2016–2017 pāhoehoe flow at Kīlauea as it changed from a narrow sheet flow into a compound lava field fed by a stable system of tubes. The portion of the flow located on Kīlauea's coastal plain was characterized...
Method for observing breach geomorphic evolution: Satellite observation of the Fire Island Wilderness breach
Timothy Nelson, Jennifer L. Miselis
2019, Conference Paper, Coastal Sediments 2019
Satellite derived shorelines are extracted using the Google Earth Engine API for Landsat and Sentinel satellites from 1984 through 2018. These shorelines are evaluated against existing surveys and show satellite-derived breach shorelines are in good agreement with directly-observed shorelines and capture the trend of the Fire Island wilderness breach evolution....
Forest restoration, wildfire, and habitat selection by female mule deer
Tanya M. Roerick, James W. Cain III, J. V. Gedir
2019, Forest Ecology and Management (447) 169-179
Decades of fire suppression, logging, and overgrazing have led to increased densities of small diameter trees which have been associated with decreases in biodiversity, reduced habitat quality for wildlife species, degraded foraging conditions for ungulates, and more frequent and severe wildfires. In response, land managers are implementing forest restoration treatments...
