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Selected AbstractsThe Language of Exclusion in F. Solly Flood's "History of the Permit System in Gibraltar"1JOURNAL OF HISTORICAL SOCIOLOGY, Issue 3 2007JENNIFER BALLANTINE PERERA He had originally been sent to Gibraltar to prepare an Order on sanitary reform after the town had been struck by a minor cholera epidemic in 1860 although a far more severe outbreak was to strike in 1865. Overcrowding was isolated as a primary agent of contagion and perceived to be a major threat to the troops given that the military lived in very close proximity to civilians. The unchecked ingress of foreigners or aliens was therefore held by the authorities to represent a major threat to the wellbeing of the Garrison; once resident in the town these aliens added to the already overcrowded living conditions. Their entry therefore needed to be restricted. All these factors contributed to the drive for permit reform. Still, the territorial restrictions placed upon the Rock after conquest most certainly informed the urgent need for population management. The resources available on the Rock were limited yet the demands from inhabitants' on the military for civic provision continued to increase throughout the nineteenth century. Flood's document subsequently draws our attention to the tensions brought about by Gibraltar's dual status as Colony and Fortress, a major concern of Flood's being that military expediency was becoming seriously undermined by an ever expanding town inhabited by a resident civilian population that was increasingly alien in composition. His aim therefore was to take measures to ensure that the only permanent presence in Gibraltar was that of the Garrison. [source] Enabling technologies to improve area-wide integrated pest management programmes for the control of screwwormsMEDICAL AND VETERINARY ENTOMOLOGY, Issue 2009A. S. ROBINSON Abstract The economic devastation caused in the past by the New World screwworm fly Cochliomyia hominivorax (Coquerel) (Diptera: Calliphoridae) to the livestock industry in the U.S.A., Mexico and the rest of Central America was staggering. The eradication of this major livestock pest from North and Central America using the sterile insect technique (SIT) as part of an area-wide integrated pest management (AW-IPM) programme was a phenomenal technical and managerial accomplishment with enormous economic implications. The area is maintained screwworm-free by the weekly release of 40 million sterile flies in the Darien Gap in Panama, which prevents migration from screwworm-infested areas in Columbia. However, the species is still a major pest in many areas of the Caribbean and South America and there is considerable interest in extending the eradication programme to these countries. Understanding New World screwworm fly populations in the Caribbean and South America, which represent a continuous threat to the screwworm-free areas of Central America and the U.S.A., is a prerequisite to any future eradication campaigns. The Old World screwworm fly Chrysomya bezziana Villeneuve (Diptera: Calliphoridae) has a very wide distribution ranging from Southern Africa to Papua New Guinea and, although its economic importance is assumed to be less than that of its New World counterpart, it is a serious pest in extensive livestock production and a constant threat to pest-free areas such as Australia. In the 1980s repeated introductions and an expansion of Old World screwworm populations were reported in the Middle East; in the 1990s it invaded Iraq and since late 2007 it has been reported in Yemen, where a severe outbreak of myiasis occurred in 2008. Small-scale field trials have shown the potential of integrating the SIT in the control of this pest and various international organizations are considering using the release of sterile insects as part of an AW-IPM approach on a much wider scale. Wohlfahrtia magnifica (Schiner) (Diptera: Sarcophagidae) is a screwworm of temperate regions, which, although of limited agricultural importance, has invaded several new locations in the past few years. This special issue reports on the results of a 6-year project funded by the Joint Food and Agriculture Organization of the United Nations/International Atomic Energy Agency (FAO/IAEA) Programme of Nuclear Techniques in Food and Agriculture entitled ,Enabling Technologies for the Expansion of the SIT for Old and New World Screwworm'. A major goal of the project was to better understand population genetic variation in screwworms as an aid to the identification of isolated populations. The project also addressed issues related to genetic sexing, cuticular hydrocarbons, population dynamics, genetic transformation and chromosome analysis. [source] A severe outbreak of melon yellow mosaic disease caused by Zucchini yellow mosaic virus in the Punjab province of PakistanPLANT PATHOLOGY, Issue 2 2006A. H. Malik No abstract is available for this article. [source] A Lepidopteran defoliator attack on Brazil nut trees (Bertholletia excelsa) in Central Amazonia, BrazilBIOTROPICA, Issue 3 2009Torbjørn HaugaasenArticle first published online: 25 MAR 200 ABSTRACT This paper describes a severe outbreak of a Lepidopteran defoliator, Lusura altrix (Stoll 1782), on Brazil nut trees in Central Amazonia. The pest outbreak appeared to succeed abnormal weather conditions, and defoliation was sufficient to disrupt normal phenological patterns. [source] |