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Veranstaltungsverzeichnis Sommersemester 2021 – Landau
No full textVorlesungsverzeichnis der Universität Koblenz-Landau, Campus Landau, für das Sommersemester 202
Architekturpsychologie: Schule, Hochschule und Bürogebäude der Zukunft
No full textMenschen wünschen sich im Allgemeinen "Kontrolle" über ihre Umweltbedingungen. Dieses Bedürfnis kommt in Form von Selbstgestaltungen von Architektur und Selbstregulierungen von Stressoren zum Ausdruck. Aus diesem Grund wird das Konzept der Umweltkontrolle als zentrales Kriterium für gebaute Umwelten in allen drei Fall-Studien zu Schule (Waldorfschule Köln), Hochschule (Universität Koblenz) und Bürogebäude (Post Tower Bonn) angewendet. Im deutschen Sprachraum werden damit erstmalig in einer Monographie psychologische Untersuchungen von innovativen Gebäuden in Anlehnung an die International Building Performance Evaluation (Gebäudeleistungsevaluation) beschrieben. Der "Koblenzer Architekturfragebogen" wird als Instrument zur Beurteilung von gebauten Umwelten in drei Varianten vorgestellt. Bis zu 21 psychologische Kriterien für den Erfolg von Organisationen werden pro Studie angewandt. Ziel aller drei Studien ist unter anderem, Empfehlungen für Verbesserungen von Um- und Neubauten benennen zu können. Zwei zentrale Fragestellungen lauten daher: Unterscheidet sich in einer User-Needs Analysis eine Einschätzung des Gebäudes "zur Zeit" von der Beurteilung der "Wichtigkeit in Zukunft"? Haben Merkmale der Architektur Auswirkungen auf die Performance-Kriterien? Zu den Studien wurden drei Abbildungssätze nach dem Facettenansatz und zwei Schemata zur Beurteilung der Qualität von Schul- und Bürogebäuden entwickelt. Die in den drei Studien ermittelten Zusammenhänge der zentralen Performance-Kriterien lassen begründet annehmen, dass durch gezielte Verbesserungen wichtiger Umweltaspekte, insbesondere solcher, die Umweltkontrolle ermöglichen, das Wohlbefinden und somit die Leistung von Nutzern positiv beeinflusst werden können
Remote Working Study 2022
No full textThe Remote Working Study 2022 is focused on the transition to work from home (WFH) triggered by the stay at home directives of 2020. These directives required employees to work in their private premises wherever possible to reduce the transmission of the coronavirus. The study, conducted by the Center for Enterprise Information Research (CEIR) at the University of Koblenz from December 2021 to January 2022, explores the transition to remote working.
The objective of the survey is to collect baseline information about organisations’ remote work experiences during and immediately following the COVID-19 lockdowns. The survey was completed by the key persons responsible for the implementation and/or management of the digital workplace in 19 German and Swiss organisations.
The data presented in this report was collected from member organisations of the IndustryConnect initiative. IndustryConnect is a university-industry research programme that is coordinated by researchers from the University of Koblenz. It focuses on research in the areas of the digital workplace and enterprise collaboration technologies, and facilitates the generation of new research insights and the exchange of experiences among user companies
Plastic debris in plastic-mulched soil - a screening study from western Germany
Get PDFBackground. Agricultural plastic mulches offer great benefits such as higher yields and lower pesticide use. Yet, plastic mulches may disintegrate over time and fragment into smaller debris. Such plastic debris is expected to remain in the field after removal of the plastic mulch and thus contributes to soil contamination with plastics.
Method. To investigate this, we collected soil samples at 0–10 cm and 10–40 cm depth from three fields covered with black mulch film for three consecutive years. Three fields without any reported plastic use served as control. Visual plastic debris > 1 cm (macroplastics) was collected from the soil surface. Mesoplastics between 2 mm and 1 cm were density separated from the sampled soil using saturated NaCl solution and analyzed by Fourier-transform infrared spectroscopy. Debris ≤ 2 mm (microplastics) was dispersed from 50 g soil using sodium hexametaphosphate solution followed by the aforementioned density separation. The separated polyethylene (PE), polypropylene (PP), and polystyrene (PS) were quantified via solvent-based pyrolysis–gas chromatography/mass spectrometry (Py–GC/MS).
Results. With 89–206 fragments ha−1, the majority of macroplastics were located in fields previously covered with mulch films. 80% of the collected specimen were identified as black PE film. The number of mesoplastics in plastic-mulched soil was 2.3 particles kg−1, while only 1.0 particles kg−1 were found in the reference fields. Py–GC/MS revealed microplastic levels of up to 13 mg kg−1. The PE content was significantly higher in plastic-mulched fields than in reference fields.
Discussion. Although the identified plastic levels are lower than those reported in comparable studies, our results still suggest that plastic mulching functions as a source of plastic debris in agricultural systems. Due to its severely restricted degradability, these plastics are likely to accumulate in soil in the long term and further fragment into smaller and smaller debris
The contribution of saving and credit cooperatives (SACCOS) on the improvement of members‘ socio economic development in Rwanda: Opportunities and challenges
No full textThis study examines the contribution of saving and credit cooperatives (SACCOS) on the improvement of members‘ socio economic development in Rwanda: Opportunities and challenges‖, Evidence from Umwalimu SACCO- Huye District‖. The appearance of saving and credit cooperatives or credit unions has been known as remedy for social ills rooted in poverty because of its efficiency in loans or credits dispensation, social equality for enhancement and reduction of poverty amongst low income earners. Therefore, millions and millions of poor people and non-bankable in developing countries (or third world countries) have been provided access to formal financial services through saving and credit cooperatives‘ programs.
The targeted population concerned by the study was 1,940 members of USACCO from which a sample of 92 respondents was purposively selected. The study has adopted a combination of correlation and descriptive research design. It has employed both quantitative and qualitative approaches. The study used both primary and secondary data. The primary data was collected using questionnaire and interview and, while secondary data was collected using documentations techniques whereby, Manual of procedures and Credit policies of USACCO and financial reports have been consulted. The analysis of data was done using SPSS version 21. The data was presented in form of tables, charts and graphs designed by SPSS v. 21. The bio-characteristics of respondents showed that, the majority of respondents were women with 55.4%, majority of respondents‘ age is between 26 to 45 years Furthermore, and majority 77.20% of respondents were married. 100% of respondents attended school, where the majority of respondents attended secondary school with certificate A2.
The study has revealed that Umwalimu SACCO services offered to its members have a positive effect on the improvement of members‘ welfare. It was found that USACCO services have slightly affected income level of members, assets acquired, access to education and medical care as well as small income generating activities established by members in Huye District. The analysis of data also revealed that there are some variables which have effected USACCO members‘ socio-economic status, these were listed as: Education background of a member, number of dependents, the occupation of a member, and number of loans got from USACCO, government programs against teachers‘ welfare, and membership duration played very important role on the improvement of standard living of teachers. All these variables were found to have positive effects on teachers‘ socio-economic status, except the family size of respondents.
In addition, the findings showed that, the majority of respondents confirmed that, they did not find opportunities to save with other financial institutions, and other respondents did not have access to loan from other financial institutions due to complicated loan requirements. In addition, after they
have joined USACCO, their deplorable status somewhat changed, both socially and economically which has contributed to the improvement of their welfare. Therefore, the study testified that, the welfare of USACCO members in terms of assets acquired, income increased was improved compared to situation before joining USACCO. The study concludes that ―the level of improvement of living conditions of teachers depends largely to the level of loan granted by USACCO to teachers and membership duration. If the level of teachers‘ loan and saving increases, there will be also improvement of teachers‘ wellbeing‖ and finally, USACCO financial service is a veritable instrument for better improvement of economic and social conditions of teachers. The study recommends that, USACCO should provide frequent and regular trainings on business management game to their members. This could help members for good management of their loans and reducing loan defaulters‘ cases observed at USACCO. Challenges observed were lack of physical collateral security required by USACCO, complicated loan requirements terms and conditions and insufficient trainings on business management game
Mitteilungsblatt der Universität Koblenz-Landau, Nr. 2/2022
No full textSatzung der örtlichen Studierendenschaft an der Universität Koblenz-Landau, Campus Landau
Zweite Ordnung zur Änderung der Prüfungsordnung für den Bachelorstudiengang „Psychologie“ des Fachbereichs Psychologie der Universität Koblenz-Landau,
Campus Landau
Grundordnung der Universität Koblenz
Wahlordnung für die Wahlen der Organe der Universität Koblen
Development of hard and corrosion resistant titanium nitride thin films using high power impulse magnetron sputtering
Get PDFTo render the surface of a material capable of withstanding mechanical and electrochemical loads, and to perform well in service, the deposition of a thin film or coating is a solution. In this project, such a thin film deposition is carried out. The coating material chosen is titanium nitride (TiN) which is a ceramic material known to possess a high hardness (>10 GPa) as well as good corrosion resistance. The method of deposition selected is high power impulse magnetron sputtering (HiPIMS) that results in coatings with high quality and enhanced properties. Sputtering is a physical process that represents the removal or dislodgment of surface atoms by energetic particle bombardment. The term magnetron indicates that a magnetic field is utilized to increase the efficiency of the sputtering process. In HiPIMS, a high power is applied in pulses of low duty cycles to a cathode that is sputtered and that consists of the coating material. As result of the high power, the ionization of the sputtered material takes place giving the possibility to control these species with electric and magnetic field allowing thereby the improvement and tuning of coating properties. However, the drawback of HiPIMS is a low deposition rate.
In this project, it is demonstrated first that it is possible to deposit TiN coating using HiPIMS with an optimized deposition rate, by varying the magnetic field strength. It was found that low magnetic field strength (here 22mT) results in a deposition rate similar to that of conventional magnetron sputtering in which the average power is applied continuously, called also direct current magnetron sputtering (dcMS). The high deposition rate at low magnetic field strength was attributed to a reduction in the back attraction probability of the sputtered species. The magnetic field strength did not show noticeable influence on the mechanical properties. The proposed explanation was that the considered peak current density interval 1.22-1.72 A∙cm-2 does not exhibit dramatic changes in the plasma dynamics.
In a second part, using the optimized deposition rate, the optimized chemical composition of TiN was determined. It was shown that the chemical composition of TiN does not significantly influence the corrosion performance but impacts considerably the mechanical properties. It was also shown that the corrosion resistance of the coatings deposited using HiPIMS was higher than that of the coatings deposited using dcMS.
The third study was the effect of annealing post deposition on the properties of TiN coating deposited using HiPIMS. The hardness of the coatings showed a maximum at 400°C reaching 24.8 GPa. Above 400°C however, a lowering of the hardness was measured and was due to the oxidation of TiN which led to the formation of TiN-TiO2 composites with lower mechanical properties.
The coating microscopic properties such as crystal orientation, residual stresses, average grain size were determined from X-ray diffraction data and the roughness was measured using atomic force microscopy. These properties were found to vary with the magnetic field strength, the chemical composition as well as the annealing temperature
Drei Varianten des Koblenzer Architekturbeurteilungsbogens (KAB 2010)©
No full textAbstract zum Print-Buch: Walden, R. (2008). Architekturpsychologie: Schule, Hochschule und Bürogebäude der Zukunft. Lengerich: Pabst Science Publishers. Menschen wünschen sich im Allgemeinen „Kontrolle“ über ihre Umweltbedingungen (vgl. Flammer, 1990; Burger, 1992). Dieses Bedürfnis kommt in Form von Selbstgestaltungen von Architektur und Selbstregulierungen von Stressoren zum Ausdruck. Aus diesem Grund wird das Konzept der Umweltkontrolle als zentrales Kriterium für gebaute Umwelten in allen drei Fall-Studien zu Schule, Hochschule und Büro angewendet. Die Erhebung smethoden Programming (nutzerorientierte Programmentwicklung), User-Needs Analysis (Nutzer-Bedarfs-Analyse) und Post-Occupancy Evaluation werden im Hinblick auf ihren Stellenwert für die Building Performance Evaluation (Gebäudeleistungsevaluation) (Preiser & Schramm, 1997; 2005) erläutert. Der „Koblenzer Architekturfragebogen“ wird als Instrument zur Beurteilung von gebauten Umwelten in drei Varianten vorgestellt. Es werden zu den drei Studien jeweils ausgewählte Ergebnisse zu zwei verschiedenen Umweltbereichen berichtet.
Auswirkungen von Architektur auf Performance von Nutzern (vgl. BOSTI-Studien, 1984, 2001) werden im empirischen Teil in drei Studien zu innovativen Gebäuden (Waldorfschule in Köln, Universität in Koblenz, Post Tower in Bonn) ermittelt. Performance wird gemessen anhand von 1) Lern- und Arbeitsleistungen, 2) Wohlbefinden und 3) Umweltkontrolle sowie 4) Sozialverhalten im Fall der Schulstudie und mit der Hilfe von 16 (Bürogebäude) bzw. 21 (Universität) psychologischen Kriterien für den Erfolg von Organisationen. Ziel aller drei Studien ist unter anderem, das theoretische Konzept „Umweltkontrolle“ zu überprüfen und Empfehlungen für Verbesserungen von Um- bzw. Neubauten benennen zu können. Zwei zentrale Frages tellungen lauten daher: Unterscheidet sich in einer User-Needs Analysis eine Einschätzung des Gebäudes „zur Zeit“ von der Beurteilung der „Wichtigkeit in Zukunft“? Haben Merkmale der Architektur Auswirkungen auf die Performance-Kriterien?
Zu den Studien wurden drei Abbildungssätze nach dem Facettenansatz (Borg, 1996) und zwei Schemata zur Beurteilung der Qualität von Schul- und Bürogebäuden entwickelt. Aus den Schemata wurden zur Schule 139 Fragen für 26 Lehrer und 86 Fragen für 122 Schüler gewonnen, zur Hochschule 203 Fragen für 147 Studierende und 28 Dozenten sowie zu dem Bürogebäude 254 Fragen für 56 studentische Beurteiler. Einzelne Merkmale von Gebäuden wurden anhand einer Skala von +2 ☺☺ („zur Zeit“ sehr gut bzw. sehr wichtig „in Zukunft“) bis –2 // („zur Zeit“ sehr schlecht bzw. sehr unwichtig „in Zukunft“) bewertet. Die drei Performance-Hauptkriterien, insbesondere zu der Einschätzung der „Wichtigkeit in Zukunft“, korrelieren in der Regel in allen drei Studien substanziell und hoch signifikant miteinander, so dass erwartet werden kann, dass eine höhere Ei nschätzung von Umweltkontrolle durch die Nutzer
zu mehr Wohlbefinden führt und über beide Va riablen auch die Beurteilungen von Lern- und Arbeitsleistungen „in Zukunft“ gesteigert werden können. Nach den Ergebnissen der drei Studien wünschen si ch die Nutzer bzw. Beurteiler beispielsweise in allen drei Umwelten Rückzugsmöglichkeiten, in der Schule in Form von Schülerbüros, Nischen und Sitzgruppen im Klassenzimmer, in der Universität in Form von geschützten Bänken im Außenbereich und Arbeitstischen zum Beispiel in der Cafeteria und im Bürogebäude durch weniger Transparenz im Kombibüro und damit weniger Einsicht aller Tätigkeiten durch Vorgesetzte und Kollegen. Die in den drei Studien ermittelten Zusammenhänge der zentralen Perfor mance-Kriterien lassen begründet annehmen, dass durch gezielte Verbesserungen wichtiger Umweltaspekte, insbesondere solcher, die Umweltkontrolle ermöglichen, das Wohlbefinden und somit die Leistung von Nutzern positiv beeinflusst werden kann
Three variations of the Koblenz Architecture Questionnaire
No full textAbstract for the print-book: Walden, R. (2008). Architectural Psychology: School, University Campus, and Office Building of the Future. Lengerich: Pabst Science Publishers (in German). The need for display of self in architecture and for users' self-regulation of stress factors, which demonstrate that users crave individual control of their environment (cf. Flammer, 1990; Burger, 1992) motivated this study to use the concept of environmental control as a central criterion for the evaluation of built environment. It was applied to three case studies: a school, a university campus, and an office building. Advantages and disadvantages of the data- gathering methods of architectural Programming, User-Needs Analysis, and Post-Occupancy Evaluation were analyzed to highlight their significance in terms of Building Performance Evaluation as described by Preiser and Sc hramm (1997, 2005). The “Koblenz Architecture Questionnaire” was used as an instrument for assessing the built environment of the three case studies, and the study reports selected findings from these questionnaires. The investigation seeks to determine the effect of architecture - especially buildings' provisions for user control of environmental conditions - on user performance (cf. BOSTI studies, 1984, 2001) in three innovative buildings: the Waldorf School in Cologne, the new campus for the University in Koblenz, and the Office Tower of the Deutsche Post World Net AG in Bonn. Performance is measured in terms of (1) Lear ning and Work Efficiency, (2) Well-being, (3) Environmental Control, (4) Social Behavior (the latter just for the school project), and by means of 21 and 16 additional psychological criteria for success of the organization in the cases of the university and the office building, respectively. The study aims, among other things, at reassessing the theoretical concept of 'environmental control' and at making recommendations for both improvement of existing buildings and the design of new projects. Two central questions are: In User-Needs Analysis, what is the difference between the assessment of a building for its current use and its estimated performance in future? Do certain architectural features influence user assessments on the given performance criteria? In the studies, three mapping sentences were developed according to the 'facet approach' (Borg, 1996) as well as two systems to judge the quality of school and office buildings. Using these systems, information was obtained in all three studies to construct questionnaires. In the school study, teachers were asked 139 questions, pupils 86 questions. Responses were obtained from 26 teachers and 122 pupils. For the university, 147 students and 28 faculty members responded to 203 questions. For the office building, 56 student-experts were asked 254 questions. Characteristics of the built environment were rated using the following scale: +2 ☺☺ (very good “at present”, and accordingly very important “in the future”) down to –2 // (very bad “at present”, and very unimportant “in the future”). A general finding was a high and significant co rrelation between the responses for the three main performance criteria in all three case studies, especially for the 'importance for the future' aspect. This supports the conclusion that a perception of higher degree of environmental control by users will lead to an increased sense of well-being and consequently, there will also be a higher expectation of improved work or learning efficiency 'in the future'. The three studies further show for example that users in all three environments desire 'retreat opportunities' which may take the form of student offices in schools, niches and small group seating in classrooms, and sheltered seating in outdoor areas and work tables in the cafeteria for the university. For the offices, users wanted more visual privacy (less transparent office partitions in Combi Offices) for less visual control of their activities by supervisors and co-workers. The relationships found by the studies between the responses on the central performance criteria and the spatial characteristics of the three buildings support the contention that focused improvements in the built environment, especially with respect to features that enhance user control of environmental conditions, will influence users’ well-being as well as work performance and work or learning efficiency in a positive way
Arthropods in agricultural landscapes – Effects of land use on beetle and spider diversity
No full textAgricultural intensification is leading to a severe decline in farmland biodiversity worldwide. The resulting landscape simplification through the expansion of monocultures and removal of non-crop habitats has a major impact on arthropod communities in agricultural landscapes. While arable fields are often highly disturbed and ephemeral habitats that are unsuitable for many species, non-crop habitats in agroecosystems can provide important refugia. The creation of non-crop habitats through agri-environmental schemes (AES) in intensive agricultural landscapes, such as the ‘Maifeld’ region in western Germany, is intended to mitigate the negative effects of agricultural intensification, although the effectiveness of these measures for nature conservation is still controversial. Therefore, this work focuses on the taxonomic and functional diversity of beetles (Coleoptera) and spiders (Araneida), being important providers of ecosystem services, between wheat fields and different non-crop habitats, namely grassy field margins adjacent to wheat and oilseed rape fields, small- and large-scale set-aside areas sown with wildflowers, and permanent grassland fallows. Arthropods were collected between 2019 and 2020 using pitfall traps and suction sampling. Land-use type influenced beetle and spider diversity in the study area, with significantly higher values in grassland fallows than wheat fields. Surprisingly, species diversity differed little among all non-crop habitats, but all harboured distinct species assemblages. In particular, large long-term grassland fallows showed the largest within-group variation of beetle and spider assemblages and represented important habitats, especially for habitat specialists and threatened species, likely due to their variable soil moisture and complex habitat structure. In contrast, the homogeneous arthropod assemblages of wheat fields exhibited lower trait richness and were dominated by a few predatory species adapted to such disturbed, man-made habitats. Interestingly, all conservation measures complemented each other in that they contributed in different ways to supporting beetles and spiders in agricultural landscapes. Even small-scale non-crop habitats and existing habitat boundaries in an agricultural matrix appear to be valuable habitats for farmland arthropods by enhancing taxonomic diversity. Field margins and small wildflower-sown patches can link isolated non-crop habitats and contribute to a heterogeneous agricultural landscape. Consequently, a combination of various small- and large-scale greening measures leads to increased compositional and configurational landscape heterogeneity, resulting in improved beetle and spider diversity. Considering the ongoing loss of farmland biodiversity worldwide, agri-environmental schemes should be promoted in the future, as they are particularly important for arthropod conservation in intensive agricultural landscapes such as the Maifeld region.Intensivierung der Landwirtschaft führt weltweit zu einem fortschreitenden Verlust der biologischen Vielfalt in Agrarlandschaften. Die daraus resultierende Homogenität der Landschaft, die mit der Ausweitung von Monokulturflächen und dem Verlust naturnaher Lebensräume einhergeht, hat schwerwiegende Auswirkungen auf Arthropoden in Agrarlandschaften. Während Ackerflächen aufgrund intensiver und häufiger Störungen für viele Arten ungeeignete Habitate darstellen, können naturnahe Lebensräume in Agrarökosystemen als wichtige Rückzugsflächen fungieren. Die Erschaffung von naturnahen Lebensräumen durch Agrarumweltmaßnahmen in intensiven Agrarlandschaften, wie der Maifelder Agrarlandschaft in Westdeutschland, sollen den negativen Auswirkungen der landwirtschaftlichen Intensivierung entgegenwirken. Allerdings ist die Wirksamkeit dieser Maßnahmen für den Artenschutz noch umstritten. Aus diesem Grund wird in dieser Arbeit die Artenvielfalt der Käfer (Coleoptera) und Spinnen (Araneida) auf Weizenfeldern und verschiedenen naturnahen Lebensräumen (grasbewachsene Feldränder angrenzend an Weizen- und Rapsfelder; klein- und großflächige, mit Wildblumenmischungen eingesäte, Stilllegungsflächen; dauerhafte Grünlandbrachen) miteinander verglichen. Hierfür wurden die Arthropoden in den Jahren 2019 und 2020 mit Bodenfallen und Saugproben erfasst. Die vorliegenden Ergebnisse zeigen, dass die Landnutzung die Käfer- und Spinnendiversität im Untersuchungsgebiet beeinflusst, mit einer deutlich höheren Artenvielfalt auf den Grünlandbrachen als auf den Weizenfeldern. Überraschenderweise bestanden zwischen allen naturnahen Lebensräumen nur geringe Unterschiede, jedoch beherbergten sie unterschiedliche Artengemeinschaften. Hier unterschieden sich vor allem die Käfer- und Spinnengemeinschaften der großflächigen Grünlandbrachen deutlich von allen anderen untersuchten Landnutzungstypen. Insbesondere für Habitatspezialisten und gefährdete Arten stellten die Grünlandbrachen wichtige Lebensräume dar, wahrscheinlich aufgrund ihrer variablen Bodenfeuchtigkeit und komplexen Lebensraumstruktur. Im Gegensatz dazu wiesen Weizenfelder homogene Arthropodengemeinschaften mit einem geringeren Merkmalsreichtum auf und wurden von einigen wenigen räuberischen Arten dominiert, die sich an derartig intensive Lebensräume angepasst haben. Die Ergebnisse deuten darauf hin, dass sich alle Schutzmaßnahmen ergänzen, indem sie auf unterschiedliche Weise zur Förderung der Käfer und Spinnen auf landwirtschaftlichen Flächen beitragen können. Selbst kleinflächige naturnahe Lebensräume und bestehende Habitatgrenzen in einer landwirtschaftlichen Matrix scheinen wertvolle Lebensräume für Arthropoden in Agrarökosystemen darzustellen, indem sie zur Erhöhung der taxonomischen Vielfalt beitragen. Feldränder und kleine, mit Wildblumen eingesäte Flächen, können isolierte naturnahe Lebensräume miteinander verbinden und zu einer heterogenen Agrarlandschaft beitragen. Folglich führt eine Kombination verschiedener klein- und großflächiger Begrünungsmaßnahmen zu einer erhöhten Landschaftsheterogenität, die sich wiederum positiv auf die Käfer- und Spinnenvielfalt auswirkt. In Anbetracht des weltweit anhaltenden Verlustes der Artenvielfalt in Agrarlandschaften, sollten Agrarumweltmaßnahmen in Zukunft gefördert werden, da sie für den Arthropodenschutz in intensiven Agrarlandschaften, wie im Maifeld, besonders bedeutsam sind