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1. Characterizing coarse sediment grain size variability along the upper Sandy River, Oregon, via UAV remote sensing

Author:
Eric S. Levenson; Mark A. Fonstad
Source:
Geomorphology 2022 v.417 pp. 108447
ISSN:
0169-555X
Subject:
Oregon,   etc   ; geomorphology; gravel; rivers;     Show all 4 Subjects
Abstract:
... In this article we evaluate the hypothesis that multiscale observations of fluvial physical characteristics can reveal systematic patterns that enable more detailed analyses of fluvial process, as well as conceptual models relating local conditions to downstream trends. We map the distribution of coarse sediment within 33 gravel bars along the upper Sandy River and analyze the grain size variabili ...
DOI:
10.1016/j.geomorph.2022.108447

2. A geographic strategy for cross-jurisdictional, proactive management of invasive annual grasses in Oregon

Author:
Megan K. Creutzburg; Andrew C. Olsen; Molly A. Anthony; Jeremy D. Maestas; Jacqueline B. Cupples; Nicholas R. Vora; Brady W. Allred
Source:
Rangelands 2022 v.44 no.3 pp. 173-180
ISSN:
0190-0528
Subject:
Oregon,   etc   ; basins; landscapes; rangelands; spatial data;     Show all 5 Subjects
Abstract:
... •Invasive annual grasses pose a widespread threat to western rangelands, and a strategic and proactive approach is needed to tackle this problem.•Oregon partners used new spatial data to develop a geographic strategy for management of invasive annual grasses at landscape scales across jurisdictional boundaries. The geographic strategy considers annual and perennial herbaceous cover along with site ...
DOI:
10.1016/j.rala.2021.12.007
CHORUS:
10.1016/j.rala.2021.12.007

3. The Effect of Regional Winds on Subtidal Along‐Inlet Currents at Oregon Inlet, NC

Author:
J. L. Humberston; T. C. Lippmann
Source:
Journal of geophysical research 2022 v.127 no.8 pp. e2022JC018513
ISSN:
2169-9275
Subject:
Oregon,   etc   ; geophysics; hydrodynamics; inland waters; research; wind;     Show all 6 Subjects
Abstract:
... Wind influence on tidal inlet hydrodynamics is examined using 40 days of wind, water level, and current observations collected in Spring 2019 at Oregon Inlet, NC, a large (1 km wide, 1–13 m deep) meso‐tidal inlet with complex delta systems. Wind velocities through the inlet (ranging 0–18 m/s) are modulated at subtidal timescales and are well correlated (R = 0.87) to a subtidal component of the wat ...
DOI:
10.1029/2022JC018513

4. Public emotions and cognitions in response to ocean acidification

Author:
Maia L. Insinga; Mark D. Needham; Thomas C. Swearingen
Source:
Ocean & coastal management 2022 v.221 pp. 106104
ISSN:
0964-5691
Subject:
Oregon,   etc   ; coastal zone management; humans; ocean acidification; surveys;     Show all 5 Subjects
Abstract:
... Ecological studies on ocean acidification (OA) are abundant, but there are only a few studies examining the human dimensions (social science) of this threat to marine environments. This article explored public emotions and cognitions (attitudes, norms) toward OA, and how these concepts are related to knowledge and risk perceptions associated with this threat. Data were from a survey of residents i ...
DOI:
10.1016/j.ocecoaman.2022.106104

5. Spatial patterns of extreme precipitation and their changes under ~ 2 °C global warming: a large-ensemble study of the western USA

Author:
David E. Rupp; Linnia R. Hawkins; Sihan Li; Matthew Koszuta; Nicholas Siler
Source:
Climate dynamics 2022 v.59 no.7-8 pp. 2363-2379
ISSN:
0930-7575
Subject:
Oregon,   etc   ; atmospheric precipitation; climate; climate models; dynamics; mountains;     Show all 6 Subjects
Abstract:
... Extreme precipitation events are expected to increase in magnitude in response to global warming, but the magnitude of the forced response may vary considerably across distances of ~ 100 km or less. To examine the spatial variability of extreme precipitation and its sensitivity to global warming with high statistical certainty, we use a large (16,980 years), initial-condition ensemble of dynamical ...
DOI:
10.1007/s00382-022-06214-3

6. Four new Orthoseira Thwaites species from Maui, Hawaii, and the Columbia River Gorge, Oregon, with comments on frustular morphology in the genus

Author:
A. Danz; J. P. Kociolek
Source:
Diatom research 2022 v.37 no.1 pp. 17-37
ISSN:
2159-8347
Subject:
Oregon,   etc   ; Bacillariophyceae; Maui; new species; research; Columbia River;     Show all 6 Subjects
Abstract:
... Light, scanning electron and focused ion beam microscope observations are presented for four new species of the diatom genus Orthoseira Thwaites. Three species, O. mauiana sp. nov., O. loweana sp. nov. and O. hawaiiensis are described from Maui (Hawaiian Islands), and one species, O. oregoniana sp. nov., is described from Oregon, USA. These four species all possess carinoportulae, the feature that ...
DOI:
10.1080/0269249X.2022.2044911

7. Horizontal transmission and expression of Epichloë typhina in orchardgrass (Dactylis glomerata)

Author:
Bushman Bradley S.; Léa Merlet; James E. Dombrowski; B. Shaun Bushman; Barbara S. Gilmore; Hannah M. Rivedal; Ruth C. Martin
Source:
European journal of plant pathology 2022 v.163 no.2 pp. 415-428
ISSN:
0929-1873
Subject:
Oregon,   etc   ; Dactylis glomerata; honeydew; plant pathology; seed yield; tillering;     Show all 6 Subjects
Abstract:
... Choke disease, which is caused by Epichloë typhina, was first reported in orchardgrass seed production fields in the Willamette Valley, Oregon in 1997 and has continued to persist in the system. The disease can cause up to 30% losses in seed yield. Unlike many Epichloë species that are seed transmitted, it is unclear how infection of orchardgrass by E. typhina occurs in the field, or how the disea ...
Handle:
10113/7775660
DOI:
10.1007/s10658-022-02485-y

8. Red turpentine beetle primary attraction increases linearly with (−)‐β‐pinene+ethanol dose regardless of component ratios, and no change in response with addition of high‐release frontalin

Author:
Rick G. Kelsey; Douglas J. Westlind
Source:
Agricultural and forest entomology 2022 v.24 no.1 pp. 63-71
ISSN:
1461-9555
Subject:
Oregon,   etc   ; Curculionidae; Dendroctonus valens; Pinus ponderosa; entomology; sex pheromones;     Show all 6 Subjects
Abstract:
... Lure efficacy for primary attraction of red turpentine beetle, Dendroctonus valens (Coleoptera: Curculionidae: Scolytinae) observed previously in US Pacific Northwest ponderosa pine forests is (−)‐β‐pinene+ethanol > (+)‐3‐carene+ethanol > (+)‐α‐pinene+ethanol. Influence of (−)‐β‐pinene+ethanol release rates was tested with nine lures representing all combinations of three release levels for each c ...
DOI:
10.1111/afe.12469

9. Three‐Dimensional Magnetotelluric Inversion for Arbitrarily Anisotropic Earth Using Unstructured Tetrahedral Discretization

Author:
Zhihao Rong; Yunhe Liu; Changchun Yin; Luyuan Wang; Xinpeng Ma; Changkai Qiu; Bo Zhang; Xiuyan Ren; Yang Su; Aihua Weng
Source:
Journal of geophysical research 2022 v.127 no.8 pp. e2021JB023778
ISSN:
2169-9313
Subject:
Oregon,   etc   ; algorithms; anisotropy; coasts; equations; geophysics; isotropy; research; topography;     Show all 9 Subjects
Abstract:
... We propose a new three‐dimensional anisotropic inversion scheme for magnetotelluric (MT) data. In this method, the earth is discretized into unstructured tetrahedral grids that can fit complex structures well, such as the earth topography and coastline. We use a 3 × 3 tensor to describe the anisotropic conductivity in the governing equation for MT inversions that can be simplified to three princip ...
DOI:
10.1029/2021JB023778

10. Status of Three Large Populations of Western Pearlshell (Bivalvia: Margaritiferidae: Margaritifera falcata) in the Willamette River Basin, Oregon

Author:
Travis Williams; Celeste A. Searles Mazzacano
Source:
Northwest science 2022 v.95 no.3-4 pp. 276-291
ISSN:
0029-344X
Subject:
Oregon,   etc   ; Anodonta; Margaritifera; freshwater; freshwater mussels; rivers; urbanization; watersheds;     Show all 8 Subjects
Abstract:
... Freshwater mussels in the western US are under-studied compared to their eastern cousins, and no western species receive federal protection. Mussel distribution throughout Oregon's rivers and streams is poorly documented, and there are limited historical records to inform assessments of whether, and by how much, current populations may have declined. We launched a long-term project to characterize ...
DOI:
10.3955/046.095.0304

11. Experiences and Situations of Shame among Food-insecure Adolescents in South Carolina and Oregon

Author:
Edward A. Frongillo; Jennifer Bernal; Krystal K. Rampalli; Elizabeth Massey; Elizabeth J. Adams; Tiara N. Rosemond; Christine E. Blake
Source:
Ecology of food and nutrition 2022 v.61 no.1 pp. 64-80
ISSN:
1543-5237
Subject:
Oregon,   etc   ; ecology; ethnic differences; food security; nutrition; South Carolina;     Show all 6 Subjects
Abstract:
... Shame experienced with food insecurity and participating in food assistance may affect adolescents. We investigated adolescents’ experiences of shame related to food insecurity and situations for these experiences in an ethnically diverse sample of 40 adolescents aged 9–15 years from South Carolina and Oregon. In-depth interviews were recorded, transcribed, coded, and analyzed. Participants descri ...
DOI:
10.1080/03670244.2021.1956484

12. Population trends and vital rates for marbled murrelet (brachyramphus marmoratus) in the pacific northwest, usa

Author:
Craig Loehle; Jake Verschuyl; Kevin A Solarik
Source:
Northwestern naturalist 2022 v.103 no.1 pp. 20-29
ISSN:
1051-1733
Subject:
Oregon,   etc   ; Brachyramphus marmoratus; coasts; demographic statistics; longevity; seabirds; surveys; California;     Show all 8 Subjects
Abstract:
... The Marbled Murrelet (Brachyramphus marmoratus) is a small seabird found on the western coast of North America, listed as federally threatened in the US. It has been in decline for a prolonged period over most of its range. To better understand this population trend, we analyzed relative abundance from at-sea survey transects of Marbled Murrelets throughout the California, Oregon, and Washington r ...
DOI:
10.1898/1051-1733-103.1.20

13. Quantifying the Effects of Modifications to the Sikora Buffer pH Method for Oregon Soils

Author:
Carl Makepeace; A. D. Moore; D. M. Sullivan
Source:
Communications in soil science and plant analysis 2022 v.53 no.12 pp. 1473-1481
ISSN:
1532-2416
Subject:
Oregon,   etc   ; buffer index; crop damage; lime requirement; plant analysis; slurries;     Show all 6 Subjects
Abstract:
... The Sikora buffer pH method is a non-hazardous alternative to the Shoemaker, McLean, and Pratt (SMP) method for lime requirement estimation (LRE) for Oregon soils. Commercial soil testing laboratories may implement method modifications in order to streamline the method for large-scale testing, however the potential effects of these modifications on buffer pH results are currently unknown. Modifica ...
DOI:
10.1080/00103624.2022.2046042

14. Vegetative and Trichome Morphology Distinguish the Monardella ovata Species Complex from the Monardella odoratissima Species Complex: Taxonomic Studies in Monardella (Lamiaceae) VII

Author:
Mark A. Elvin; Ronald B. Kelley; Bryan T. Drew
Source:
Systematic botany 2022 v.47 no.3 pp. 697-715
ISSN:
0363-6445
Subject:
Oregon,   etc   ; Lamiaceae; coasts; lectotypes; monophyly; trichomes; British Columbia; California; Mexico; Nevada;     Show all 10 Subjects
Abstract:
... Monardella (Lamiaceae) is a taxonomically complex western North American genus ranging from the Pacific coast to the western slopes of the Rocky Mountains and from southern British Columbia in Canada to the Cape region of Baja California Sur in Mexico. We applied a combination of gross vegetative morphology, trichome morphology and abundance/distribution, and molecular data to clarify taxonomic di ...
DOI:
10.1600/036364422X16573019348247

15. How does strategic choice affect the performance of community forest enterprises? A study in the Cascadia region

Author:
Meike Siegner; Robert Kozak; Rajat Panwar; Harry Nelson
Source:
Canadian journal of forest research 2022 v.52 no.2 pp. 227-236
ISSN:
1208-6037
Subject:
Oregon,   etc   ; community forestry; finance; forests; governance; leadership; research; surveys; British Columbia;     Show all 9 Subjects
Abstract:
... Proponents of decentralized forest governance make a compelling case that community forest enterprises (CFEs) can aid in sustainable and equitable utilization of forest resources. The effectiveness of CFEs is thus dependent on their ability to balance social, environmental, and financial performance. In this paper, we examine the relationship between a commonly recommended differentiation strategy ...
DOI:
10.1139/cjfr-2021-0063

16. Reduced-input Pruning Methods Are a Viable Option for Machine-harvested ‘Mini Blues’ Highbush Blueberry

Author:
Bernadine C. Strik; Amanda J. Davis; Patrick A. Jones; Chad E. Finn
Source:
HortScience 2022 v.57 no.10 pp. 1313-1320
ISSN:
2327-9834
Subject:
Oregon,   etc   ; Vaccinium corymbosum; canopy; cultivars; flowers; fruits; leaves; mechanical harvesting; wood;     Show all 9 Subjects
Abstract:
... ‘Mini Blues’ highbush blueberry (Vaccinium sp.) was released in 2016 as a high-quality, machine-harvestable alternative to lowbush (V. angustifolium Ait.) or other small-fruited highbush blueberry cultivars for processed markets. A planting was established in Oct. 2015 in western Oregon to evaluate the effects of pruning method on yield, machine-harvest efficiency (MHE), berry weight and total sol ...
DOI:
10.21273/HORTSCI16703-22

17. Water quality index assessment methods for surface water: A case study of the Citarum River in Indonesia

Author:
Mariana Marselina; Fachriah Wibowo; Arini Mushfiroh
Source:
Heliyon 2022 v.8 no.7 pp. e09848
ISSN:
2405-8440
Subject:
Oregon,   etc   ; case studies; ecosystems; rivers; sanitation; surface water; water quality; Indonesia;     Show all 8 Subjects
Abstract:
... Water quality index (WQI) can express overall water quality status in a single term. As such, the application of daily WQI assessment should help the general public be more aware of the condition of the surface water around them. As the longest and biggest river in the West Java Province, the Citarum River plays an important role in the life of the community and ecosystem around it. Therefore, thi ...
DOI:
10.1016/j.heliyon.2022.e09848

18. Genome sequence of freshwater nontoxigenic Limnoraphis associated with microcystin-producing blooms.

Author:
Theo W. Dreher; Edward W. Davis; Frank M. Wilhelm; Sarah H. Burnet; Ryan S. Mueller
Source:
Harmful algae 2022 v.118 pp. 102309
ISSN:
1568-9883
Subject:
Oregon,   etc   ; Microcystis aeruginosa; freshwater; genes; lakes; metagenomics; microcystins; nucleotide sequences; streams; summer;     Show all 10 Subjects
Abstract:
... A sample from a 2019 cyanobacterial bloom in a freshwater reservoir in eastern Oregon, USA, was used to produce a metagenome from which the complete, circular 7.3 Mbp genome of Limnoraphis sp. WC205 was assembled. The Limnoraphis sp. WC205 genome contains gas vesicle genes, genes for N₂-fixation and genes for both phycocyanin- and phycoerythrin-containing phycobilisomes. Limnoraphis was present in ...
DOI:
10.1016/j.hal.2022.102309

19. Variability of Longshore Surface Current on the Shelf Edge and Continental Slope off the West Coast of Canada

Author:
Guoqi Han; Nancy Chen
Source:
Remote Sensing 2022 v.14 no.6 pp. -
ISSN:
2072-4292
Subject:
Oregon,   etc   ; El Nino; La Nina; coasts; satellite altimetry; summer; wind; winter; Canada;     Show all 9 Subjects
Abstract:
... The shelf-edge and continental slope current off the west coast of Canada has been monitored at a site off West Vancouver Island since 1985. However, observations at this site may not represent the characteristics of the shelf-edge and slope current off the entire west coast of Canada. Here, we use along-track satellite altimetry data over six transects to investigate the characteristics of the su ...
DOI:
10.3390/rs14061407

20. Distinguishing Sex of Northern Spotted Owls with Passive Acoustic Monitoring

Author:
Sage S. Dale; Julianna M. A. Jenkins; Zachary J. Ruff; Leila S. Duchac; Christopher E. McCafferty; Damon B. Lesmeister
Source:
Journal of raptor research 2022 v.56 no.3 pp. 287-299
ISSN:
0892-1016
Subject:
Oregon,   etc   ; Strix occidentalis; birds of prey; expert opinion; females; males; regression analysis;     Show all 7 Subjects
Abstract:
... Northern Spotted Owls (Strix occidentalis caurina) are of management and conservation concern in the US Pacific Northwest where populations have been monitored since the 1990s using mark-resight methods. Passive acoustic monitoring has the potential to support monitoring efforts; however, its use is currently primarily restricted to determining species presence rather than breeding status. Disting ...
DOI:
10.3356/JRR-21-33