Ecological Factors Influencing Pea Aphid Outbreaks in the US Pacific Northwest

Author(s):  
Stephen L. Clement ◽  
Damon S. Husebye ◽  
Sanford D. Eigenbrode
2006 ◽  
Vol 7 (1) ◽  
pp. 34 ◽  
Author(s):  
Stephen L. Clement

This review documents the history of pea aphid outbreaks and epidemics of pea aphid-transmitted viruses on peas in the Pacific Northwest, with emphasis on outbreaks and epidemics in the Palouse region of eastern Washington over 23 years. This article will enable researchers and industry leaders to target resources to areas requiring more research for better understanding of pea aphid-host plant-virus relationships in the Pacific Northwest. Accepted for publication 3 August 2006. Published 18 October 2006.


2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Conor Gilligan ◽  
Kristen G. Anderson ◽  
Benjamin O. Ladd ◽  
Yun Ming Yong ◽  
Michael David

Abstract Background Alcohol consumption estimates in public health predominantly rely on self-reported survey data which is likely to underestimate consumption volume. Surveys tend to ask specifically about standard drinks and provide a definition or guide in an effort to gather accurate estimates. This study aimed to investigate whether the inclusion of the term standard drinks with pictorial guide is associated with an adjustment in self-reported alcohol volume. Methods A web-based survey was administered with AUDIT-C questions repeated at the beginning and end of the survey with and without the standard drink term and guide. The order in which respondents were presented with the different question types was randomised. Two cohorts of university/college students in NSW Australia (n = 122) and the US Pacific Northwest (n = 285) completed the survey online. Results Australian students did not adjust their responses to questions with and without the standard drink term and pictorial guide. The US students were more likely to adjust their responses based on the detail of the question asked. Those US students who drank more frequently and in greater volume were less likely to adjust/apply a conversion to their consumption. Conclusions This study supports previous findings of the inaccuracy of alcohol consumption volume in surveys, but also demonstrates that an assumption of underestimation cannot be applied to all individual reports of consumption. Using additional questions to better understand drink types and serving sizes is a potential approach to enable accurate calculation of underestimation in survey data.


Radiocarbon ◽  
2019 ◽  
Vol 61 (6) ◽  
pp. 1775-1784
Author(s):  
Helene Svarva ◽  
Pieter Grootes ◽  
Martin Seiler ◽  
Terje Thun ◽  
Einar Værnes ◽  
...  

ABSTRACTTo resolve an inconsistency around AD 1895 between radiocarbon (14C) measurements on oak from the British Isles and Douglas fir and Sitka spruce from the Pacific Northwest, USA, we measured the 14C content in single-year tree rings from a Scots pine tree (Pinus sylvestris L.), which grew in a remote location in Saltdal, northern Norway. The dataset covers the period AD 1864–1937 and its results are in agreement with measurements from the US Pacific coast around 1895. The most likely explanation for older ages in British oak in this period seems to be 14C depletion associated with the combustion of fossil fuels.


2021 ◽  
pp. 269-276
Author(s):  
J. Fernandez-Salvador ◽  
E. Chernoh ◽  
A. Pheil ◽  
B. Renne

2015 ◽  
Vol 76 ◽  
pp. 551-559 ◽  
Author(s):  
Simon C. Parkinson ◽  
Ken Dragoon ◽  
Gordon Reikard ◽  
Gabriel García-Medina ◽  
H. Tuba Özkan-Haller ◽  
...  

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