Index Catalog // ScholarsArchive@OSU

Methods to assess factors that influence grass seed yield

Creator:: Louhaichi, Mounir
Abstract:: A greater than 10-fold increase in Canada goose (Branta canadensis) populations over the past several years has resulted in concerns over grazing impacts on grass seed production in the mid-Willamette Valley, Oregon. This study was designed to develop methods to quantify and statistically analyze goose-grazing impacts on seed yields of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Mounir Louhaichi for the

Assessment of impacts of Canada geese on wheat production

Creator:: Louhaichi, Mounir
Abstract:: Numbers of wild Canada geese (Branta canadensis) have increased dramatically during the past 30 years in the lower Columbia and Willamette Valley systems. The damage they cause by grazing and trampling plants can be substantial. The objectives of this research were to: 1) Develop methods that provide reliable estimates of...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Mounir Louhaichi for the degree of Master of Science in Rangeland Resources

A reliable and non-destructive method for estimating forage shrub cover and biomass in arid environments using digital vegetation charting technique

Creator:: Louhaichi, Mounir, Hassan, Sawsan, Clifton, Kathryn, and Johnson, Douglas E.
Abstract:: Despite the importance of fodder shrubs to small ruminant diets and production in arid and semi-arid ecosystems, they are often not considered when quantifying grazing land potential. This oversight is mainly due to the time consuming and costly traditional techniques used to estimate shrub biomass. The shrub fodder component should...
Resource Type:: Article
Full Text:: environments using digital vegetation charting technique Mounir Louhaichi, Sawsan Hassan, Kathryn Clifton

Impacts of bracteole removal and seeding rate on seedling emergence of halophyte shrubs: implications for rangeland rehabilitation in arid environments

Creator:: Louhaichi, Mounir, Hassan, Sawsan, Missaoui, Ali Mekki, Ates, Serkan, Petersen, Steven L., Niane, Abdoul Aziz, Slim, Slim, and Belgacem, Azaiez Ouled
Abstract:: Direct seeding techniques often result in unsatisfactory outcomes in rangeland rehabilitation, primarily because of low seedling emergence and poor establishment. Seed processing techniques aimed at improving seedling emergence have gained interest by pasture managers. The purpose of this study was to investigate the combined effects of bracteole removal and seeding...
Resource Type:: Article
Full Text:: rehabilitation in arid environments Mounir LouhaichiA,B,H, Sawsan HassanA, Ali Mekki MissaouiC, Serkan AtesB

Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images

Creator:: Ndzeidze, Stephen Koghan
Abstract:: Invasive plant species are expanding and transforming vegetative communities across Oregon and throughout the United States. Over the past three decades remote sensing, geographic information system (GIS), and Global Positioning System (GPS) technologies have been integrated to detect and map the distribution of noxious rangeland plants. This study developed low-cost...
Resource Type:: Dissertation
Full Text:: processing and this was reviewed by Dr. Louhaichi Mounir. Mike Halbleib was involved with aerial image

Delay-Aware Resource Management Frameworks for Intelligent Vehicular Networks

Creator:: Almasari, Shahad A.
Abstract:: Autonomous vehicles bring great societal benefits but also potential impact and disruption to road safety, traffic congestion, and driving behaviors. One important technology that is indispensable to the success of such systems is vehicular networks. Vehicular networks provide the backbone for ensuring communication and connectivity among vehicles, all crucial to...
Resource Type:: Masters Thesis

The Biology and ecology of weeping alkaligrass (Puccinellia distans) and Nuttall’s alkaligrass (Puccinellia nuttalliana)

Creator:: Tarasoff, Catherine
Abstract:: Weeping alkaligrass (Puccinellia distans) and Nuttall’s alkaligrass (Puccinellia nuttalliana) infest Kentucky bluegrass seed fields of eastern Oregon. Weeping alkaligrass is an introduced species from Eurasia, whereas Nuttall’s alkaligrass is native to semi arid environments of western North America. These species are often referred to collectively as ‘alkaligrass’; however, for farmers...
Resource Type:: Dissertation
Full Text:: manuscript. Dr. Mounir Louhaichi contributed to the interpretation and writing of ‘Using Geographic

ReidJLeightonForestryPREDICTSDatabaseGlobal.pdf

Creator:: Hudson, Lawrence N., Newbold, Tim, Contu, Sara, Reid, J. Leighton, and et al.
Abstract:: Biodiversity continues to decline in the face of increasing anthropogenic pressures such as habitat destruction, exploitation, pollution and introduction of alien species. Existing global databases of species’ threat status or population time series are dominated by charismatic species. The collation of datasets with broad taxonomic and biogeographic extents, and that...
Full Text:: -Philippe L�egar�e139, Susan G. Letcher140, Nick A. Littlewood141, Carlos A. L�opez-Quintero142, Mounir

Some contributions to asymmetric error control codes

Creator:: Elmougy, Samir
Abstract:: In some practical systems, most of the errors are of 1 → 0 type and 0 → 1 errors occur very rarely. In this thesis, first, the capacity of the asymmetric channel is derived. The capacity of the binary symmetric channel (BSC) and the Z-channel can be derived from this...
Resource Type:: Dissertation
Full Text:: . Radwan, Dr. Mounir Louhaichi, Dr. Osama Abdel Salam, Dr. Ahmed Hassan, Dr. Ahmed El-Shafei, Dr. Emad El

An Investigation of soil, vegetation and mycorrhizal characteristics associated with native grass re-esablishment in crested wheatgrass seedings

Creator:: Raven, Karen A.
Abstract:: Since the 1930's, many fields on the Crooked River National grasslands have been seeded to crested wheatgrass (Agropyron desertorum). While some of these fields remain dominated by crested wheatgrass others had a greater presence of deep rooted native perennial grasses such as bluebunch wheatgrass (Pseudoroegneria spicata). Twenty eight fields previously...
Resource Type:: Masters Thesis
Full Text:: Doctors Doug Johnson and Mounir Louhaichi for their tireless help in understanding the details and

ScholarsArchive@OSU

Methods to assess factors that influence grass seed yield

Assessment of impacts of Canada geese on wheat production

A reliable and non-destructive method for estimating forage shrub cover and biomass in arid environments using digital vegetation charting technique

Impacts of bracteole removal and seeding rate on seedling emergence of halophyte shrubs: implications for rangeland rehabilitation in arid environments

Detecting medusahead (Taeniatherum caput-medusae (L.) Nevski) using high frequency, sequential, globally positioned digital images

Delay-Aware Resource Management Frameworks for Intelligent Vehicular Networks

The Biology and ecology of weeping alkaligrass (Puccinellia distans) and Nuttall’s alkaligrass (Puccinellia nuttalliana)

ReidJLeightonForestryPREDICTSDatabaseGlobal.pdf

Some contributions to asymmetric error control codes

An Investigation of soil, vegetation and mycorrhizal characteristics associated with native grass re-esablishment in crested wheatgrass seedings

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search