Index Catalog // ScholarsArchive@OSU

Screening the impact of pesticides on the survival and function of beneficial arthropods in hops and grapes in Washington state

Creator:: Coyle, J. L. and James, D. G.
Resource Type:: Conference Proceeding
Full Text:: providedby phytoseiids like G. occidentalis andN.fallacis. Propargite, a miticideused on grapes, was safe to

Artisanal fishing in the Galapagos

Creator:: Anderson, Lee G. and Wiley, Tracey L.
Abstract:: El Archipielago de Colon, more commonly known as the Galapagos Islands, is a province of Ecuador located about 600 miles off the coast of South America. It consists of approximately 45 volcanic islands (15 major and 30 minor) plus scores of smaller islets and rocks. The total land area is...
Resource Type:: Research Paper
Full Text:: Artisanal fiching in the Galapagos Lee G. Anderson Tracey L

Macrofaunal modification of porewater advection: role of species function, species interaction, and kinetics

Creator:: Waldbusser, George G. and Marinelli, Roberta L.
Abstract:: ABSTRACT: Sedimentary habitats are complex associations of biotic, chemical, and physical processes comprising ‘ecosystem function’. The relative importance of these processes to biogeochemical cycling in highly reactive, permeable sediments remains poorly understood. We report results from several field experiments in a muddy-sand intertidal flat dominated by 2 functionally different types...
Resource Type:: Article
Full Text:: , and kinetics George G. Waldbusser*, Roberta L. Marinelli Chesapeake Biological Laboratory, One

Genetic variation in basic density and modulus of elasticity of coastal Douglas-fir

Creator:: Johnson, G. R. and Gartner, Barbara L.
Abstract:: Douglas-fir trees from 39 open-pollinated families at four test locations were assessed to estimate heritability of modulus of elasticity (MOE) and basic density. After trees were felled, sound velocity was measured on 4-m logs with the Director HM200. Disks were taken to estimate dry and green wood density; dynamic MOE...
Resource Type:: Article
Full Text:: Genet 37:152-157 Knowles L, Hansen, Downes G, Kimberley M, Gaunt D, Lee J, Roper J (2003) Modelling

Evidence of infaunal effects on porewater advection and biogeochemistry in permeable sediments: A proposed infaunal functional group framework

Creator:: Waldbusser, George G. and Marinelli, Roberta L.
Abstract:: Bioturbating infauna significantly modify reaction and transport processes in permeable sediments, though most studies to date are limited in the scope of species examined. We conducted a comparative field study measuring density-dependent effects of six common bioturbating species on porewater advection and biogeochemistry, across three intertidal permeable sediment habitats. The...
Resource Type:: Article
Full Text:: G. Waldbusser1,2 and Roberta L. Marinelli3 ABSTRACT Bioturbating infauna significantly modify

The growing season carbon balance of a sub-boreal clearcut 5 years after harvesting using two independent approaches to measure ecosystem CO₂ flux

Creator:: Pypker, Thomas G. and Fredeen, Arthur L.
Abstract:: From 27 June to 3 September 1999, CO2 fluxes from a 5-year-old, 84.15-ha vegetated clearcut in sub-boreal British Columbia were measured using a Bowen ratio energy balance (BREB) system and a second approach (the component model) that was based on scaled up CO2-flux measurements from belowground and plants (spruce seedlings...
Resource Type:: Article
Full Text:: clearcut 5 years after harvesting using two independent approaches to measure ecosystem CO2 flux Thomas G

Is long primary growth associated with stem sinuosity in Douglas-fir?

Creator:: Gartner, Barbara L. and Johnson, G. R.
Abstract:: Stem sinuosity is a highly visible stem-form trait in the leaders of fast-growing Douglas-fir (Pseudotsuga menziesii var. (Mirb.) Franco) trees, yet its cause is unknown. We tested the hypotheses that sinuous stems have longer expanses of primary growth than nonsinuous stems (putting the leader at higher risk curvature, induction of...
Resource Type:: Article
Full Text:: 15161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293 0.0 0.5 1.0 1.5 d) a) T o ta l g ro w th (c m ) 0 10 20 30 40 50 60 b

Developing an Economic Profile of Texas Shrimp Trawling Operations in The Gulf of Mexico

Creator:: Haby, Michael G., Falconer, Lawrence L., and Parker, John L.
Abstract:: The annual assessment of shrimp fishing performance is important to three interrelated audiences: the regulatory community which defines the policy arena in which fishermen operate, financial institutions which extend credit, and producers. Historic, economic performance data enables policy makers to estimate the ability of producers to absorb production losses and/or...
Resource Type:: Conference Proceeding
Full Text:: Trawling Operations in The Gulf of Mexico Michael G. Haby, Department of Agricultural Economics, Texas

Role of soil fumigants to control wireworms in potatoes

Creator:: Bret, B. L., Beaver, R. G., and Mueller, J. P.
Resource Type:: Conference Proceeding

Influence of Bravo fungicide applications on wood density and moisture content of Swiss needle cast affected Douglas-fir trees

Creator:: Johnson, G. R., Gartner, Barbara L., Maguire, Doug, and Kanaskied, Alan
Abstract:: Wood density, moisture content, tracheid width and cell wall size were examined in trees from plots that were sprayed for 5 years with chlorothalonil (Bravo®) fungicide to reduce the impact of Swiss needle cast (SNC) and from trees in adjacent unsprayed plots. The unsprayed (more heavily diseased) trees had significantly...
Resource Type:: Article
Full Text:: - d~mass) /green volume]. • Percen'i:age~f.wood (byvolume) = 100 x [(dry mass/'l:53)/g~een volume

ScholarsArchive@OSU

Screening the impact of pesticides on the survival and function of beneficial arthropods in hops and grapes in Washington state

Artisanal fishing in the Galapagos

Macrofaunal modification of porewater advection: role of species function, species interaction, and kinetics

Genetic variation in basic density and modulus of elasticity of coastal Douglas-fir

Evidence of infaunal effects on porewater advection and biogeochemistry in permeable sediments: A proposed infaunal functional group framework

The growing season carbon balance of a sub-boreal clearcut 5 years after harvesting using two independent approaches to measure ecosystem CO₂ flux

Is long primary growth associated with stem sinuosity in Douglas-fir?

Developing an Economic Profile of Texas Shrimp Trawling Operations in The Gulf of Mexico

Role of soil fumigants to control wireworms in potatoes

Influence of Bravo fungicide applications on wood density and moisture content of Swiss needle cast affected Douglas-fir trees

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