Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

Selected Works

1998

PDF

Discipline
Keyword
Publication

Articles 1 - 16 of 16

Full-Text Articles in Life Sciences

Khapra Beetle (Trogoderma Granarium Everts): Pest-Initiated Pest Risk Assessment, Judith Pasek Aug 1998

Khapra Beetle (Trogoderma Granarium Everts): Pest-Initiated Pest Risk Assessment, Judith Pasek

Judith E Pasek

This pest risk assessment was conducted by the United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine (USDA, APHIS, PPQ). It was initiated in response to a need identified during an agency Program Review for khapra beetle (Trogoderma granarium Everts; Coleoptera: Dermestidae), which was requested during the November 1997 meeting of the Plant Protection and Quarantine Strategy Team (PPQST) and the National Plant Board Council. This assessment addresses the likelihood of khapra beetle becoming established in the United States, the economic consequences of khapra beetle infestation in the US, and available information regarding pathways, …

Go to article

Advice To Flight Crews Concerning Wildlife Hazards To Aircraft, Paul F. Eschenfelder Aug 1998

Advice To Flight Crews Concerning Wildlife Hazards To Aircraft, Paul F. Eschenfelder

Paul F. Eschenfelder

No abstract provided.

Go to article

Selection For Resistance And Tolerance To Oat Mosaic Virus And Oat Golden Stripe Virus In Hexaploid Oats, Scott L. Walker, Steven Leath, J. Paul Murphy, Steven A. Lommel Mar 1998

Selection For Resistance And Tolerance To Oat Mosaic Virus And Oat Golden Stripe Virus In Hexaploid Oats, Scott L. Walker, Steven Leath, J. Paul Murphy, Steven A. Lommel

Steven Leath

Coker 716, a hexaploid oat cultivar resistant to both oat mosaic virus (OMV) and oat golden stripe virus (OGSV) was crossed to three susceptible cultivars (Brooks, Madison, and Tech) to form three individual populations. Individual breeding lines were derived from each cross in the F2 generation and tested in plots consisting of equally spaced individual hills in OMV- and OGSV-infested soils and non-infested soils to evaluate resistance and yield loss of individual lines. Foliar symptoms, harvest index, and yield loss were examined as selection criteria for resistant genotypes. The study was conducted over 2 years at two North Carolina locations …

Go to article

The Second Messenger Camp Elicits Eating By An Anatomically Specific Action In The Perifornical Hypothalamus, Elizabeth R. Gillard, Arshad M. Khan, Rickinder S. Grewal, Bara Mouradi, Stefany D. Wolfsohn, B. Glenn Stanley Mar 1998

The Second Messenger Camp Elicits Eating By An Anatomically Specific Action In The Perifornical Hypothalamus, Elizabeth R. Gillard, Arshad M. Khan, Rickinder S. Grewal, Bara Mouradi, Stefany D. Wolfsohn, B. Glenn Stanley

Arshad M. Khan, Ph.D.

No abstract provided.

Go to article

Aquaculture In Dagupan City, Philippines, Michael A. Rice, Arthur Z. Devera Feb 1998

Aquaculture In Dagupan City, Philippines, Michael A. Rice, Arthur Z. Devera

Michael A Rice

The development of aquaculture in the Agno-Pantal-Calmay River Estuary system of Dagupan City, Pangasinan Province in the Philippines is reviewed. Traditionally, extensive pond culture of milkfish, Chanos chanos and penaeid shrimp was practiced along with culture of mangrove oysters, Crassostrea iredalei, in adjacent estuarine waterways. Netpen culture of serranid groupers in the estuaries began in the early 1980s, followed by intensive fish pen culture of milkfish in the late 1980s. Over intensification of finfish aquaculture led to hyper eutrophication and fish kills beginning in 1996. Official governmental response to the fish kills is reported, and recommendations to prevent future fish …

Go to article

Untangling Confusion Between Eubranchipus Vernalis And Eubranchipus Neglectus (Branchiopoda : Anostraca), Denton Belk, Graziella Mura, Stephen C. Weeks Jan 1998

Untangling Confusion Between Eubranchipus Vernalis And Eubranchipus Neglectus (Branchiopoda : Anostraca), Denton Belk, Graziella Mura, Stephen C. Weeks

Stephen C. Weeks

Despite illustrations in Garman (1926) clearly showing the different antennal appendages of Eubranchipus vernalis and Eubranchipus neglectus, Creaser (1930) published erroneous drawings of the antennal appendages of these two species that led to more than 65 years of taxonomic confusion between them. We untangle this confusion, and show that these species have nonoverlapping areas of occurrence with E. vernalis to the east and E. neglectus to the west of the Appalachian Mountains. In addition, we present evidence supporting the use of resting-egg (cyst) morphology in studying evolutionary relationships among anostracan species. An important part of this usefulness is due to …

Go to article

Characterizing Self-Similarity In Bacteria Dna Sequences, Xin Lu, Zhirong Sun, Huimin Chen, Yanda Li Dec 1997

Characterizing Self-Similarity In Bacteria Dna Sequences, Xin Lu, Zhirong Sun, Huimin Chen, Yanda Li

Huimin Chen

No abstract provided.

Go to article

Intelligent Design And Irreducible Complexity, David Depew Dec 1997

Intelligent Design And Irreducible Complexity, David Depew

David J Depew

No abstract provided.

Go to article

Colocalization Of Calretinin And Calbindin-D28k With Oxytocin And Vasopressin In Rat Supraoptic Nucleus Neurons: A Quantitative Study, Seiji Miyata, Arshad Khan, Glenn I. Hatton Dec 1997

Colocalization Of Calretinin And Calbindin-D28k With Oxytocin And Vasopressin In Rat Supraoptic Nucleus Neurons: A Quantitative Study, Seiji Miyata, Arshad Khan, Glenn I. Hatton

Arshad M. Khan, Ph.D.

No abstract provided.

Go to article

Eating Induced By Perifornical Camp Is Behaviorally Selective And Involves Protein Kinase Activity, Elizabeth R. Gillard, Arshad M. Khan, Bara Mouradi, Omkar Nalamwar, B. Glenn Stanley Dec 1997

Eating Induced By Perifornical Camp Is Behaviorally Selective And Involves Protein Kinase Activity, Elizabeth R. Gillard, Arshad M. Khan, Bara Mouradi, Omkar Nalamwar, B. Glenn Stanley

Arshad M. Khan, Ph.D.

No abstract provided.

Go to article

Just Lookin' For A Home, Warren G. Abrahamson Ii, A. E. Weis Dec 1997

Just Lookin' For A Home, Warren G. Abrahamson Ii, A. E. Weis

Warren G. Abrahamson, II

No abstract provided.

Go to article

Keeping Problem Tigers From Becoming A Problem Species, Philip J. Nyhus, R L. Tilson Dec 1997

Keeping Problem Tigers From Becoming A Problem Species, Philip J. Nyhus, R L. Tilson

Philip J. Nyhus

No abstract provided.

Go to article

Precocene Ii Modifies Maternal Responsiveness In The Burrower Bug, Sehirus Cinctus (Heteroptera)., Scott Kight Dec 1997

Precocene Ii Modifies Maternal Responsiveness In The Burrower Bug, Sehirus Cinctus (Heteroptera)., Scott Kight

Scott Kight

The anti‐Juvenile Hormone agent precocene II was used to investigate the relationship of corpora allata activity to subsocial behaviour in a burrower bug Sehirus cinctus Palisot (Heteroptera: Cydnidae). Egg‐brooding females treated with a range of dosages of precocene II exhibited reliably depressed maternal defensive behaviour when treated with at least 70 μg of precocene II, but attraction to eggs was only depressed at higher dosages. This effect was not due to precocene II toxicity, as demonstrated by the prevention of depression effects through simultaneous treatments of precocene II and the Juvenile Hormone analogue methoprene. Methoprene, however, failed to reinstate maternal …

Go to article

Per-Mile Premiums For Auto Insurance: Nber Version, Aaron S. Edlin Dec 1997

Per-Mile Premiums For Auto Insurance: Nber Version, Aaron S. Edlin

Aaron Edlin

No abstract provided.

Go to article

Revised Group Classification Of The Genus Spiroplasma, David L. Williamson, Robert F. Whitcomb, Joseph G. Tully, Gail E. Gasparich, David L. Rose, Patricia Carle, Joseph M. Bové, Kevin J. Hackett, Jean R. Adams, Roberta B. Henegar, Meghnad Konai, Claude Chastel, Frank E. French Dec 1997

Revised Group Classification Of The Genus Spiroplasma, David L. Williamson, Robert F. Whitcomb, Joseph G. Tully, Gail E. Gasparich, David L. Rose, Patricia Carle, Joseph M. Bové, Kevin J. Hackett, Jean R. Adams, Roberta B. Henegar, Meghnad Konai, Claude Chastel, Frank E. French

Gail Gasparich

Significant changes have been made in the systematics of the genus Spiroplasma (class Mollicutes) since it was expanded by revision in 1987 to include 23 groups and eight sub-groups. Since that time, two additional spiroplasmas have been assigned group numbers and species names. More recently, specific epithets have been assigned to nine previously designated groups and three sub-groups. Also, taxonomic descriptions and species names have been published for six previously ungrouped spiroplasmas. These six new organisms are: Spiroplasma alleghenense (strain PLHS-1T) (group XXVI), Spiroplasma lineolae (strain TALS-2T) (group XXVII), Spiroplasma platyhelix (strain PALS-1T) (group XXVIII), Spiroplasma montanense (strain HYOS-1T) (group …

Go to article

Serologic And Genomic Relatedness Of Group Xiv Spiroplasma Isolates From A Lampyrid Beetle And Tabanid Flies: An Ecologic Paradox, G. E. Gasparich, K. J. Hackett, F. E. French, R. F. Whitcomb Dec 1997

Serologic And Genomic Relatedness Of Group Xiv Spiroplasma Isolates From A Lampyrid Beetle And Tabanid Flies: An Ecologic Paradox, G. E. Gasparich, K. J. Hackett, F. E. French, R. F. Whitcomb

Gail Gasparich

Spiroplasma group XIV strain EC-1T and other isolates from the lampyrid beetle Ellychnia corrusca form a serogroup with tabanid spiroplasma strains (TC-1 and TS-1). It was hypothesized that similarities among these strains reflect a transmission cycle in which lampyrid beetles serve as overwintering hosts and tabanid adults become infected and transmit a homogeneous population of spiroplasma strains during spring, summer and autumn. In the present study, variations in restriction fragment length patterns suggest the presence of multiple genovars. Genotypic analysis may therefore be a companion to serology in elucidating spiroplasma diversity, and may provide clues to strain host range.

Go to article