As part of the international project entitled "African Monsoon Multidisciplinary Analysis (AMMA)", NAMMA (NASA AMMA) aimed to gain a better understanding of the relationship between the African Easterly Waves (AEWs), the Sahara Air Layer (SAL), and tropical cyclogenesis. The NAMMA airborne field campaign was based out of the Cape Verde...
Anadromous salmonid populations in the Pacific Northwest have declined over the past 150 years. In 1999, wild spring Chinook salmon (Oncorhynchus tshawytscha) were federally listed as threatened within the Willamette Basin, OR. Currently, practices to restore wild populations in the upper Willamette Basin involve trapping wild adults at the base...
The Pacific coast groundfish fishery is a diverse, important and lucrative commercial and recreational fishery. Part of this fishery’s monitoring process includes regular fishery-independent surveys for stock assessment. Although these fishery-independent surveys are cost-effective, they are susceptible to scientific uncertainty, and they do not currently sample in nearshore (water depth...
Large-scale ecosystem assessments aim to assist ecosystem management by synthesizing current scientific knowledge on an area, and by providing a foundation for policy discussions and decisions on land management. These assessments go beyond traditional research efforts by moving away from narrow scope, system, and institutional boundaries, and by attempting to...
Objective of this study was to compare accuracy of
several travel cost methods, by employing Monte Carlo
simulations in the single site framework. Estimates from
five methods were compared to the "true" travel cost
coefficient and "true" consumer surplus. Each method was
ranked, using the root mean squared error (RMSE)...
Le Maroc compte quelques 1000 Km de rivières salmonicoles 60.000 ha de retenues de barrages, 80 lacs colinéaires et d'importantes pêcheries d'anguille, de civelle, de palourde et de crevette. Hormis les eaux à aloses qui ont été gravement affectées par différentes formes de dégradation (déforestation, surpâturage, pollution, érosion etc...) et...
Oregon State University operates a World-Wide Standard Seismograph Station at Corvallis (COR) and a seismic station at Klamath Falls (KFO), Oregon. The Corvallis station includes graphs (To = 1 sec T = 0.75 sec), seismographs (T0 = 30 g sec, Tg = 100 vertical Benioff seismograph (T o = 1...
The Oregon State University seismic station at Corvallis is one of the World-Wide Cooperative Standard Seismograph Network of stations. The station includes three-component Benioff short-period seismographs (T0 = 1 sec, Tg = 0.75 sec); three-component Sprengnether long-period seismographs (T0 = 30 sec, Tg = 100 sec); and an additional small...
The organotaxy of the family Tydeidae is reviewed in
light of the fundamental paradigms of Grandjean. The
system of designation previously used to describe the
tydeid idiosoma is replaced by a notation system based
on chaetotaxy and poroidotaxy. A preliminary survey of
dorsal sigillotaxy also is included. The phanerotaxy of...
The recent quest for improved functional materials like high permittivity dielectrics and/or
multiferroics has triggered an intense wave of research. Many materials have been checked for their
dielectric permittivity or their polarization state. In this report, we call for caution when samples are
simultaneously displaying an insulating behavior and a...