Thesis (Ph. D.) -- Lincoln University, 2008. / Also available via the World Wide Web.

Thesis (M.Phil.)--University of Hong Kong, 1981. / Also available in print.

Thesis (M. Sc.) -- Lincoln University, 2009. / Also available via the World Wide Web.

Thesis (M.P.A.)--University of Hong Kong, 1994. / Includes bibliographical references (leaves 125-127).

Thesis (M.P.A.)--University of Hong Kong, 1994. / Includes bibliographical references (leaves 125-127). Also available in print.

Thesis (MSc)--University of Stellenbosch, 2005. / Bibliography. Also available via the Internet.

Thesis (M.Sc.(Agric.))(Plant Production)--University of Pretoria, 2006. / Includes bibliographical references. Available on the Internet via the World Wide Web.

This project involves a sustained investigation into the sense of the enemy. Chapter one begins by focusing on a common understanding of the enemy found within our homeworld: the political enemy. As will become clear, this mode of encountering the enemy has become the dominant framework for understanding the enemy in our liberal-democratic home. Our task at this point is to identify the political elements from which our mode of understanding the enemy emerges. Once this dominant understanding has been developed, I will treat it as a clue for a fuller investigation into the sense of the enemy. In chapter two, we see that even positions critical of liberal-democratic thought tend to occupy a similar political understanding of the enemy. Working with the writings of Carl Schmitt, we observe how even his critical posture towards the liberal-democratic understanding of the enemy is itself operating within a similar articulation of the enemy. I argue that Schmitt's articulation is similar to the liberal-democratic articulation in that they are both modern in nature. The task of the third chapter is to understand the problematic aspects of the modern understanding of our world so as to clear the way for a fuller understanding of the enemy. This is followed by the fourth chapter that is devoted to finding a way to think outside of the modern liberal-democratic model of politics that regulates our homeworld understanding of the enemy. In so doing, chapters three and four help us find an opening into a more essential structure organizing the sense of the enemy. Once this goal is accomplished, the final chapter investigates the way we encounter the enemy within generative and intersubjective lived experience.

Information was gathered regarding all aquarium and already introduced alien snail species (Gastropods), which are being imported to Europe. For the integrity of the research non-native and aquarium clams (Bivalve) were also included. Profiles of species were created based on collected information and the data were subsequently used for creating questionnaires. Questionnaires of each species were processed by FI - ISK, version 1.19 screening tool. Score of invasiveness risk potential was evaluated for each species individually. Surveyed taxa were divided into three groups according to their scores: low risk, medium risk and high risk. Celetaia persculpta was evaluated as aquarium snail (Gastropods) with the lowest risk for native fauna of Czech Republic. According to the results, Pomacea maculata and Pomacea canaliculata are the aquarium snails (Gastropods) with the highest invasiveness risk potential. The riskiest introduced species is Potamopyrgus antipodarum. Scabies crispata and Hyriopsis bialata are clams (Bivalve) with the least risk for the native fauna of Czech Republic. Corbicula fluminea and Dreissena polymorpha were analyzed as clams (Bivalve) with the highest invasiveness risk potential. By comparing aquarium species with species that were already introduced into Czech nature, I conclude that the aquarium snails (clams) do not represent similar risk like the alien species that were introduced without the share of aquarists.

Recent estimates have revealed that more than 6.5 million olive trees in southern Italy have subdued to the Xylella fastidiosa infection, leading to the devasting Olive Quick Decline Syndrome (OQDS). This epidemic continues to expand, posing a significant threat to global olive oil production. OQDS has already resulted 30-34% reduction in ecosystem services provided by olive orchards and a 28% decline in associated biodiversity. Additionally, OQDS has annihilated productivity and the entire olive oil supply chain, causing considerable economic losses. To counteract the relentless spread of Xylella, Integrated Transmission Management (ITM) strategies are crucial. Reducing one vector per olive tree present in an olive orchard can confine X. fastidiosa within acceptable economic and environmental limits. Thus, monitoring and managing vector populations are crucial to curbing disease transmission. The complex interactions between insects and microorganisms are pivotal in the OQDS scenario. Understanding these interactions can provide insights into novel control strategies, such as disrupting bacterial symbiosis with Aphrophoridae foams, affecting the fitness of vector insects, and potentially reducing X. fastidiosa transmission. To counteract Xylella transmission effectively, biocontrol measures must be incorporated into IPM strategies for olive orchards. However, more than the current arsenal of vector antagonists is required. The entrance into the Europe of Zelus renardii shows promise in biocontrolling Xylella vectors. Furthermore, Z. renardii's ability to manage other olive pests adds to its utility. Zelus renardii's bionomics and its ability to regulate alarm pheromones via Brindley glands is crucial for its effective use in IPM strategies. The formulation of artificial diets for mass-rearing Z. renardii under controlled conditions can pave the way for its inundative release to enhance ITM. These biological and biotechnological control measures have the potential to significantly reduce Philaenus spumarius populations and the infective capacity of Xylella vectors within IPM strategies. This approach can also act preventively and protectively, reducing the risk of future infections and limiting repeated transmissions. Progress has been made in modulating the transmission abilities of Xylella vectors, while the challenge of OQDS and X. fastidiosa remains tricky. The availability of Z. renardii and exploring its capabilities offer a more sustainable and effective approach to managing this disease in olive production.