On Roeweriella balcanica, a mysterious species of Marpissa from the Balkan Peninsula (Araneae, Salticidae)

The taxonomic position of the poorly known species Roeweriella balcanica Kratochvíl, 1932 from Croatia is discussed. The species is illustrated and re-described on the basis of the female holotype. The genus Roeweriella Kratochvíl, 1932 (type species: R. balcanica Kratochvíl, 1932 by monotypy) is synonymized with Marpissa C.L. Koch, 1846, and therefore the new combination, Marpissa (Marpissa) balcanica (Kratochvíl, 1932) comb.nov., is proposed

EThOS: progress towards an electronic thesis service for the UK.

The EThOS (Electronic Theses Online Service) project is building on previous e-thesis (or EDT) initiatives, and co-ordinating the work of some of the key players in the UK to develop a service for finding, accessing and archiving digital copies of Doctoral theses produced in UK higher education institutions. Key issues for the project are the development of a sound financial basis for a successful service, the provision of advice needed by authors and university staff on handling intellectual property rights, and protecting legitimate needs for confidentiality. EThOS will also establish workable and standards-based procedures for populating e-thesis repositories with current and retrospectively-acquired digital versions of theses and associated metadata. These developments must also fit with universities’ own internal administrative arrangements and regulations. The project aims to deliver an e-thesis infrastructure that is both technically and financially sustainable, together with a full supporting toolkit of guidance, standards and procedures

Growing Bigger Better: Lessons from Experience Corps Expansion in Five Cities Executive Summary

This summary presents key findings from the full report, Growing Bigger Better, which examines the Experience Corps programs four-year expansion initiative. The summary briefly considers whether and how the local sites, and the program as a whole, benefited from the expansion effort and presents lessons that are relevant to other programs considering expansion

Optimal collective contract without peer information or peer monitoring

If entrepreneurs have private information about factors influencing the outcome of an investment, individual lending is inefficient. The literature typically offers solutions based on the assumption of full peer information to solve adverse selection problems and peer monitoring to solve moral hazard problems. In contrast, I show that it is possible to construct a simple budget-balanced mechanism that implements the efficient outcome even if each borrower knows only own type and effort, and has neither privileged knowledge about others nor monitoring ability. The mechanism satisfies participation incentives for all types, and is immune to the Rothschild–Stiglitz cream skimming problem despite using transfers from better types to worse types. The presence of some local information implies that the mechanism cannot be successfully used by formal lenders. Thus a local credit institution can emerge as an optimal response to the informational environment even without peer information or monitoring. Finally, I investigate the role of monitoring in this setting and show how costly monitoring can increase the scope of the mechanism

Effects of Feeding by Two Folivorous Arthropods on Susceptibility of Hybrid Poplar Clones to a Foliar Pathogen

We investigated variation in folivore-induced effects on subsequent plant suitability to a foliar pathogen. We used a leaf disk assay to expose three clones of hybrid poplar, NC11382, NE332 and NM6, to colonization by a leaf spot pathogen, Septoria musiva. Undamaged leaf disks of NE332 were the most resistant to S. musiva, followed by NM6 and NC11382, respectively. To test the effects of prior herbivory on subsequent susceptibility to this fungal pathogen, we inoculated S. musiva on leaf disks taken from leaves which had been exposed to feeding by Tetranychus mites or cottonwood leaf beetles. Prior activity by mites and cottonwood leaf beetle affected the subsequent susceptibility of clones NC 11382 and NE332 to S. musiva