Effects of Urbanization on Flow Duration and Stream Flashiness: A Case Study of Puget Sound Streams, Western Washington, USA

2017 ◽  
Vol 53 (2) ◽  
pp. 493-507 ◽  
Author(s):  
Tyler T. Rosburg ◽  
Peter A. Nelson ◽  
Brian P. Bledsoe
2019 ◽  
Vol 3 (1) ◽  
pp. 1-9
Author(s):  
Robert M. Anderson ◽  
Amy M. Lambert

The island marble butterfly (Euchloe ausonides insulanus), thought to be extinct throughout the 20th century until re-discovered on a single remote island in Puget Sound in 1998, has become the focus of a concerted protection effort to prevent its extinction. However, efforts to “restore” island marble habitat conflict with efforts to “restore” the prairie ecosystem where it lives, because of the butterfly’s use of a non-native “weedy” host plant. Through a case study of the island marble project, we examine the practice of ecological restoration as the enactment of particular norms that define which species are understood to belong in the place being restored. We contextualize this case study within ongoing debates over the value of “native” species, indicative of deep-seated uncertainties and anxieties about the role of human intervention to alter or manage landscapes and ecosystems, in the time commonly described as the “Anthropocene.” We interpret the question of “what plants and animals belong in a particular place?” as not a question of scientific truth, but a value-laden construct of environmental management in practice, and we argue for deeper reflexivity on the part of environmental scientists and managers about the social values that inform ecological restoration.


Author(s):  
Colin Bryson

This case study evaluates a new initiative to establish a cross-disciplinary forum focusing on enhancing learning, teaching and the student experience. All staff and students are welcome to participate and participants set the agenda themselves. The intention is to have open and informal dialogue and to work in partnership towards setting up collective participatory action-research projects. This is modelled on the Teaching and Learning Academy at Western Washington University (Werder and Otis, 2010). An important aim was to create a space to give voice for those - the so-called ‘hard to reach’- who do not get such opportunities in traditional structures. There have been many challenges to creating a sustainable and successful working model, not least such barriers as communications, creating time and opportunity and working against current dominant cultures. Nonetheless, staff and students, including many international students, have participated and found legitimacy to discuss their own priorities. 


Radiocarbon ◽  
2015 ◽  
Vol 57 (5) ◽  
pp. 917-941 ◽  
Author(s):  
Ian Hutchinson

Surface-breaking ruptures on shallow crustal faults in the southern Puget Lowland in western Washington State about a millennium ago prompted abrupt changes in land level and triggered tsunamis in Puget Sound. The displacement on the Seattle fault most likely occurred in the 1050–1020 cal BP interval. Structures further south (the Tacoma and Olympia faults, and one or more faults in the southern Hood Canal zone) ruptured at about the same time, or slightly earlier. The low frequency of radiocarbon ages from archaeological sites in the region in the aftermath of the “millennial series” of earthquakes, when compared to bootstrapped samples from a database of 1255 ages from the Pacific Northwest as a whole, suggests that these very large earthquakes had significant socioeconomic consequences. The cultural record from coastal archaeological sites shows that although survivors camped on the shore in the aftermath, many coastal villages appear to have been abandoned, and were not reoccupied for several centuries. There is little evidence, however, to suggest that people migrated from southern Puget Sound to neighboring areas, and no evidence of social conflict in the adjacent areas that might have served as havens.


2018 ◽  
Vol 23 ◽  
pp. 00031
Author(s):  
Grzegorz Siwek

Nowadays, under increasing climate change effects on the environment, we can observe increasing number of extreme phenomena, including meteorological and hydrological ones. One of such phenomena are floods. The objective of this article is the assessment of basic flood characteristics seasonality in the annual distribution. Analysis were performed based on time series of daily flow values recorded in the years 1951–2014 in three gauging stations located on rivers in Easter Poland, in upper Wieprz catchment. Floods were defined according to TLM algorithm and were assumed to be all cases of flow occurrence exceeding 10% read from FDC (flow duration curve) (Q10). Seasonality was analysed using Markham’s Seasonality Index and Period of Seasonal Concentration, analysis of autocorrelation function (ACF) as well as proposed by the author Seasonal Winter Floods Index. The distribution of floods during year indicates one flood season in year which occurs in the spring.


2012 ◽  
Vol 2303 (1) ◽  
pp. 108-116 ◽  
Author(s):  
Maren L. Outwater ◽  
Thomas Adler ◽  
Jeffrey Dumont ◽  
Matthew Kitchen ◽  
Alon Bassok

PLoS ONE ◽  
2011 ◽  
Vol 6 (10) ◽  
pp. e25248 ◽  
Author(s):  
Jessi Kershner ◽  
Jameal F. Samhouri ◽  
C. Andrew James ◽  
Phillip S. Levin
Keyword(s):  

2018 ◽  
Vol 28 (6) ◽  
pp. 830-835 ◽  
Author(s):  
Michelle M. Moyer ◽  
Jaqueline King ◽  
Gary Moulton

The Puget Sound American Viticulture Area (AVA), located west of the Cascade Mountain Range in Washington State, is a large and uniquely situated area with diverse topography and mesoclimates. Given the young age of the AVA, little formal information exists on the appropriate rootstock–scion combination in wine grapes (Vitis vinifera) for the region. This project reports on a series of rootstock trials from 2003 to 2007, which evaluated the influence of ‘420A Millardet et de Grasset’, ‘3309 Couderc’, ‘101-14 Millardet et de Grasset’ (all Vitis hybrids), and a self-rooted control on basic harvest metrics of the wine grape scion ‘Pinot noir clone 02A’. At the warmer site in Everson, WA, rootstocks had no effect on final juice harvest metrics measured by soluble solids, titratable acidity (TA), and pH. At the cooler site in Mount Vernon, WA, the use of rootstocks did not always influence soluble solids or pH but did reduce final harvest TA, a desired effect for the region that is typified by low sugar–high TA wines. Even with a reduction in TA in some rootstock–scion combinations, overall, TA remained at the upper end or above the range typically desired for many wine styles.


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