http://hdl.handle.net/1957/12721 Fri, 24 May 2013 07:01:41 GMT 2013-05-24T07:01:41Z http://hdl.handle.net/1957/38714 History of Entomopathogenic Nematology Poinar, G. O., Jr.; Grewal, P. S. The history of entomopathogenic nematology is briefly reviewed. Topic selections include early descriptions of members of Steinernema and Heterorhabditis, how only morphology was originally used to distinguish between the species; descriptions of the symbiotic bacteria and elucidating their role in the nematode- insect complex, including antibiotic properties, phase variants, and impeding host defense responses. Other topics include early solutions regarding production, storage, field applications and the first commercial sales of entomopathogenic nematodes in North America. Later studies centered on how the nematodes locate insect hosts, their effects on non-target organisms and susceptibility of the infective juveniles to soil microbes. While the goals of early workers was to increase the efficacy of entomopathogenic nematodes for pest control, the increasing use of Heterorhabditis and Photorhabdus as genetic models in molecular biology is noted. This is the publisher’s final pdf. The published article is copyrighted by the Society of Nematologists (SON) and published by Florida Online Journals. The article can be found at: http://journals.fcla.edu/jon/index. Fri, 01 Jun 2012 00:00:00 GMT http://hdl.handle.net/1957/38714 2012-06-01T00:00:00Z http://hdl.handle.net/1957/38711 Silica bodies in the Early Cretaceous Programinis laminatus (Angiospermae: Poales) Poinar, George, Jr. Silica bodies in short cell epidermal leaf cells of the Early Cretaceous Programinis laminatus (Poales) in Burmese amber are characterized. The great majority are rondels and elongated quadrates aligned horizontally in relation to the leaf axis. Rondel types include circular, elliptical, oblong, long and short forms. Quadrate types include short and long rectangles, trapezoids and pentagons. A comparison of P. laminatus silica bodies with those in extant epidermal leaf cells of the Poales aligns the fossil with the family Poaceae and representatives of the subfamily Pooidae. This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Staatliches Museum für Naturkunde Stuttgart and can be found at: http://www.palaeodiversity.org/. Fri, 30 Dec 2011 00:00:00 GMT http://hdl.handle.net/1957/38711 2011-12-30T00:00:00Z http://hdl.handle.net/1957/38584 Shrimp adjust their sex ratio to fluctuating age distributions Charnov, Eric L.; Hannah, Robert W. Long-term data sets that quantitatively confirm basic ecological theory are rare for field populations. Highly variable recruitment often causes wide temporal variation in population age distribution and basic theory for adaptive sex ratio often predicts ‘sex ratio tracking’ to match the fluctuating age distribution. Using sex-changing shrimp as a model system, we test this in a new data set of 20 years duration. The new data support the theory, despite intense fishery exploitation that itself has greatly altered the age distribution in recent years. This is the publisher’s final pdf. The published article is copyrighted by Evolutionary Ecology and can be found at: http://www.evolutionary-ecology.com/. Tue, 01 Jan 2002 00:00:00 GMT http://hdl.handle.net/1957/38584 2002-01-01T00:00:00Z http://hdl.handle.net/1957/38300 Five new species and three new subspecies of Erebidae and Noctuidae (Insecta, Lepidoptera) from Northwestern North America, with notes on Chytolita Grote (Erebidae) and Hydraecia Guenée (Noctuidae) Crabo, Lars G.; Davis, Melanie; Hammond, Paul; Mustelin, Tomas; Shepard, Jon Several taxonomic issues in the moth families Erebidae and Noctuidae are addressed for Northwestern North America. Drasteria parallela Crabo & Mustelin and Cycnia oregonensis tristis Crabo in the Erebidae and Eudryas brevipennis bonneville Shepard & Crabo, Resapamea diluvius Crabo, Resapamea angelika Crabo, Resapamea mammuthus Crabo, Fishia nigrescens Hammond & Crabo, and Xestia perquiritata orca Crabo & Hammond in the Noctuidae are described as new. The following new synonyms are proposed: Chytolita petrealis Grote with Herminea morbidalis Guenee; Gortyna columbia Barnes & Benjamin and Gortyna ximena Barnes & Benjamin with Gortyna obliqua Harvey; and Hydroecia pallescens Smith with Hydroecia medialis Smith. The type locality of Gortyna intermedia Barnes & Benjamin is restricted to Lundbreck, Municipality of Crowsnest Pass, Alberta, Canada. This is the publisher’s final pdf. The published article is copyrighted by Pensoft Publishers and can be found at: http://www.pensoft.net/journals/zookeys/. Wed, 06 Feb 2013 00:00:00 GMT http://hdl.handle.net/1957/38300 2013-02-06T00:00:00Z