Spatial and temporal definition of Ochlerotatus camptorhynchus (Thomson) (Diptera : Culicidae) in the Gippsland Lakes system of eastern Victoria

The confirmed vector of Ross River virus, Ochlerotatus camptorhynchus (Thomson), is the dominant mosquito species inhabiting saline marshes in coastal Victoria. This paper re-examines previously published data on Oc. camptorhynchus, plus additional data collected since that time, and provides greater spatial and temporal definition of Oc. camptorhynchus numbers at seven sites across the Gippsland Lakes system of eastern Victoria. A total of 357 672 Oc. camptorhynchus was captured from 1188 trap-nights across the seven trap sites during trapping seasons from 1990 to 2001. The dominance of Oc. camptorhynchus across the seven sites averaged 75%, with significant differences in mean abundance of Oc. camptorhynchus found between all trap sites. Significant differences in monthly abundance of Oc. camptorhynchus were observed for Wellington Shire. Increase in populations of Oc. camptorhynchus was associated with increases in rainfall at all trap sites, higher minimum temperatures at two of the seven trap sites, and wind speed at one trap site. Prioritisation of mosquito control may be applied based on spatial and temporal factors according to the findings of this study.

Techno-economic security aspects of transferring technology to China:the perspective of Danish companies

Danish companies are especially prevalent in China where they have found opportunities to exploit their niche position in a number of specialised product areas. As a result, their operations are often well advanced in terms of the levels of technology transferred and the extent of transfer. Transferring technology brings with it risks as well as benefits. Its absorption and dissemination can, in the longer term, bring about new competitors unless measures are taken to prevent leakage of know-how or the technology supplier can stay ahead of the technological race. This paper draws on data from three Danish case companies that are transferring technology to China. The cases are examined within a framework that allows the identification of the companies’ motivations for transfer against their awareness of the techno-economic security issues. In this way it is possible to highlight the strategic and operational approaches that can be taken to obviate the risks involved.

A desztináció menedzsment szerepe a desztinációs versenyképességben – Hazai és dán tapasztalatok tükrében = The role of destination management in the destinations’ competitiveness – Hungarian and Danish experiences

A desztináció menedzsment valamennyi desztinációs versenyképesség modell középponti eleme, és „csodaszerként” jelenik meg, különösen azokban az országokban, amelyek a desztináció menedzsment eszközrendszerét a közelmúltban vezették be, annak érdekében, hogy a desztinációk lépést tudjanak tartani a versenytársaikkal, mint ahogyan ez hazánkban is történt. Jelen tanulmány alapját a témában írt PhD Értekezésem (Sziva, I. (2010)) adja, amelynek fókuszában a desztinációs versenyképesség értelmezése, az ex ante oldali tényezők feltárása állt. A téziskutatás során feltárt tényezők, és a Bírálóim konstruktív fejlesztési javaslatai a téma továbbkutatására ösztönöztek. Mindezért tartottam elengedhetetlennek, hogy a tézisemben összefoglalt hazai és osztrák kutatások legfontosabb eredményeit további nemzetközi színtéren, ezúttal Dániában vizsgáljam, jelen esetben a fókuszt a desztináció menedzsment tényezőire, és annak kiemelt kontextusaira helyezve. Jelen tanulmány legfontosabb célja az, hogy egyrészt összefoglalást adjon a desztináció menedzsment szerepéről a desztinációs versenyképesség elméleti megközelítéseit tekintve. Továbbá, hogy a hazai tapasztalatok összevetésre kerüljenek a szakértői interjúk során megismert dán tapasztalatokkal és további kutatási irányok kerüljenek meghatározásra. Ezúton szeretném megköszönni dániai kutatásom interjú-alanyainak részvételét és a Budapesti Corvinus Egyetem TÁMOP 4.2.1.B-09/1/KMR-2010-0005 projekt keretében nyújtott támogatását! _________ Destination management is the central element of the model concerning destinations’ competitiveness, and appears as „wonder medicine”, particularly in those countries, where the tools of destination management was introduced in the near past, as it happened in Hungary. The baseline of this study is given by my PhD Dissertation (Sziva, I. (2010)), which was focusing on interpretation and the ex ante factors of destinations’ competitiveness. The factors identified during my thesis research, and the constructive recommendations of my Reviewer gave the motivation for further analysis. That is why was it important to make further researchers based on the results identified in the Hungarian and Austrian cases of my thesis research, and add further international, this time Danish context to the research, by focusing on destination management among the factors of competitiveness. The aim of the article is to give a summary about the theoretical approach of destination management and compare the Hungarian experiences with that of the results of the Danish research based on experts’ interviews. Hereby I would like to thank my interviewees their participation, and the support of Corvinus University Budapest in the framework of TÁMOP 4.2.1.B-09/1/KMR-2010-0005 project.

Benthic Macrophyte Distribution and Abundance in Estuarine Mangrove Lakes and Estuaries: Relationships to Environmental Variables

Annual mean salinity, light availability, and sediment depth to bedrock structured the submerged aquatic vegetation (SAV) communities in subtropical mangrove-lined estuaries. Three distinct SAV communities (i.e., Chara group, Halodule group, and Low SAV coverage group) were identified along the Everglades–Florida Bay ecotone and related to water quality using a discriminant function model that predicted the type of plant community at a given site from salinity, light availability, and sediment depth to bedrock. Mean salinity alone was able to correctly classify 78% of the sites and reliably separated the Chara group from the Halodule group. The addition of light availability and sediment depth to bedrock increased model accuracy to 90% and further distinguished the Chara group from the Halodule group. Light availability was uniquely valuable in separating the Chara group from the Low SAV coverage group. Regression analyses identified significant relationships between phosphorus concentration, phytoplankton abundance, and light availability and suggest that a decline in water transparency, associated with increasing salinity, may have also contributed to the historical decline of Chara communities in the region. This investigation applies relationships between environmental variables and SAV distribution and provides a case study into the application of these general principals to ecosystem management.

Investigation of spatial patterns of ground-water exchange with lakes, using a three-dimensional numerical model

Hydrogeologic variables controlling groundwater exchange with inflow and flow-through lakes were simulated using a three-dimensional numerical model (MODFLOW) to investigate and quantify spatial patterns of lake bed seepage and hydraulic head distributions in the porous medium surrounding the lakes. Also, the total annual inflow and outflow were calculated as a percentage of lake volume for flow-through lake simulations. The general exponential decline of seepage rates with distance offshore was best demonstrated at lower anisotropy ratio (i.e., Kh/Kv = 1, 10), with increasing deviation from the exponential pattern as anisotropy was increased to 100 and 1000. 2-D vertical section models constructed for comparison with 3-D models showed that groundwater heads and seepages were higher in 3-D simulations. Addition of low conductivity lake sediments decreased seepage rates nearshore and increased seepage rates offshore in inflow lakes, and increased the area of groundwater inseepage on the beds of flow-through lakes. Introduction of heterogeneity into the medium decreased the water table and seepage ratesnearshore, and increased seepage rates offshore in inflow lakes. A laterally restricted aquifer located at the downgradient side of the flow-through lake increased the area of outseepage. Recharge rate, lake depth and lake bed slope had relatively little effect on the spatial patterns of seepage rates and groundwater exchange with lakes.

Annotated record and chemical composition of ferromanganese concretions and crusts sampled from the lakes and streams of Norway

The main objective of the project was to develop a geochemical method for exploration of ores associated with granitic rocks. Fe and Mn oxidates were sampled in streambeds and lakes from 129 localities in Southeastern Norway. 65 of these localities are situated in the northern Oslo Graben. The samples were examined mineralogically and chemically by a variety of methods. Geochemical maps of the element content in oxidates show regional distribution patterns for several elements. Sampling and analysis of oxidates can be used in exploration for mineralizations such as the Skrukkelia Mo-deposit in the northern Oslo Graben. New anomalies (especially for Zn and W) have been detected. Appendix I contains a description of samples, chemical and mineralogical determinations performed on the samples, backscattered electron image-, X-ray image- and scanning electron image pictures of the oxidate preparates. Appendix II contains spectral plots, point analysis with the microprobe, X-ray diffractograms, analytical results, correlation coefficient matrix, scatterplots, frequency distributions and information on data storage. Appendix III containS maps of the element content in oxidates.