Communities of epigeic beetles were studied on five forest habitats with the different age structure in the Novohradské foothills area (Český Krumlov district, South Bohemia, Czech Republic). All studied habitats were found in three managed forests. The method of pitfall trapping was used for beetle sampling. There were 2735 specimens trapped. 25 beetles species were divided into two groups by its ecological preferences to the degree of human impact. Index of antropogenic influence had better values in two oldest studied habitats. Species diversity was higher in the oldest habitats too. The results indicate less human impact in mature managed forests than clearings and young managed forest stands.

[pt] Neste estudo iremos empiricamente avaliar o impacto do envelhecimento da população na eficácia da política monetária. Primeiramente, estimaremos o impacto da política monetária sobre o hiato do produto e inflação, evidenciando um enfraquecimento geral da transmissão da política monetária ao longo do tempo. Em outras palavras, hiato do produto e inflação menos sensíveis às mudanças nas taxas de juros. Depois, utilizaremos o método de OLS para testar o efeito negativo e estatisticamente significativo das alterações demográficas na eficácia da política monetária. / [en] In this study we will empirically evaluate the impact of population aging on the effectiveness of monetary policy. First, we will estimate the impact of monetary policy on the output gap and inflation, evidencing a general weakening of monetary policy transmission over time. In other words, output gap and inflation are less sensitive to changes in interest rates. Then we will use the OLS method to test the negative and statistically significant effect of demographic changes on the effectiveness of monetary policy.

Pension insurance and demographic development in the Czech Republic Abstract The aim of this thesis is to describe the development of the pension insurance in the Czech Republic and changes in retirement age in relation to the development of life expectancy and changes in the age structure of the population of the Czech Republic. In the first part of the work, there demographic changes of the population are described and in particular, changes in the age structure of the population of the Czech Republic. The second part provides an overview of the historical development of pension insurance in the territory of today's Czech Republic, in particular the development of the most important laws, but also statistical data as well as basic concepts and characteristics of the current pension scheme. In the third part of this thesis are analyzed the changes in the age structure of the population and their relation to raising retirement age in the pension scheme of Czech Republic. Keywords: pension insurance, retirement age, the age structure of the population, life expectancy.

The final thesis deals with social situations juniors and seniors in selected countries of the European Union. The thesis monitors changes in social developments primarily in terms of income, education, and especially of unemployment. The selected period is the period from approximately 2005 to 2011, in some cases up to 2013. The aim of this thesis is the statistical analysis of the data set EU-SILC for 2005 and 2010 of Czech Republic, Slovakia, Poland, Germany, France and Spain with focusing on income, education and unemployment among age groups.

No description available.

(I) Background. Conflicts emerge when populations of protected species grow to sizes that cause noticeable economic damage - like in the case of the fish consuming Great Cormorant (Phalacrocorax carbo sinensis). One possible approach for reconciliation is to regulate the size of the population in question. In doing so, regulation strategies have to meet multiple targets: 1) population size has to be reduced; 2) the viability of the population has to be maintained; 3) strategies have to adhere to the available budget. This thesis focuses on the regulation of populations that are structured into two groups - breeders and mature non-breeders. The pool of non-breeders provides a reserve for the breeders, whereby they may enable the population to resist regulation attempts. (II) Aims. 1) Development of a modeling framework and a conceptual model to provide an understanding of the functioning and effect of the population structure induced by non-breeders on population dynamics in a fluctuating environment. 2) Uncover the relation between non-breeder characteristics and the performance of regulation strategies. 3) Application of the modeling approach to the regulation of the Cormorant in order to evaluate the results from the conceptual model and find statements to support decisions on management strategies. (III) Methods. A conceptual stochastic time-discrete model, based on the logistic map with overlapping generations, is developed. Different types of threshold regulation strategies are applied. Strategies differed in which part of the model was affected by regulation. Resulting rules from the conceptual model are tested by applying them to a second age-structured model of a cormorant population, parametrized with data gained from a cormorant colony in Denmark. Analyzes of this model focus on the ecological-economic performance of regulation strategies and result in rankings of regulation options. Regulation performance is judged from different economic perspectives.

Exploring age structure in Mediterranean cultures illuminates the social dynamics of intergenerational relationships that became more visible in late first and early second century early Christian texts, and especially in 1 Timothy 5. This was a time of crisis when those with a living memory of the foundations of the movement were almost gone, and the community was scrutinized by outsiders. Since we have relatively few clues related to aging and age structure in the extant texts, a model of generational stability and social change based on ethnographic data helps us to imagine culturally sensitive possibilities that we can then test out as we reread the texts in their Roman cultural context. In his fictive story of Paul and Timothy, the author of the heterographical (pseudepigraphical) letter of 1 Timothy establishes an ideal intergenerational relationship between “Paul” as an older man and “Timothy” as his adult “child.” When the fictive Paul directs Timothy to speak kindly to older people (5:1-2), he introduces a section on age-related issues. Behaviour that was causing concern for public reputation included adult children shirking filial duty (5:4, 8), young widows gadding about in public (5:11-15), and younger men accusing their elders (5:19). These behaviours threatened the reputation and honour of the community and may have been encouraged by the opposing faction. The author’s solution was to reject the opposing teachings and enforce behaviour that reflected proper age structure: adult children should fulfill their filial responsibilities and care for widowed mothers and grandmothers (5:4); young widows should be guided and supported by middle-aged women who were responsible for them in the age hierarchy among women (5:16); middle-aged women should imitate the exemplary behaviour of the enlisted widows who were over 60 years old; and young men were to be rebuked in front of everyone for their disrespect toward elders (5:20). In the face of social change, the author advocates for behaviour reflective of the traditional age structure of Roman society.

Japan står inför en stor utmaning; en snabbt växande åldrande befolkning i kombination med en minskad arbetsför befolkning. Denna uppsats syftar till att försöka förklara vilka effekter landets åldrande befolkning får för landets ekonomiska tillväxt, samt vilka faktorer som kan dämpa dessa effekter. Analysen görs med hjälp av en modifierad version av Solows tillväxtmodell som teoretisk bas. Detta görs för att skapa en förståelse för vilka faktorer som påverkar ett lands ekonomiska tillväxt. Med hjälp av denna modell tas befolkningens åldersstruktur med som en parameter. Den utvecklade modellen ligger sedan till grund för en empirisk analys av hur Japans ekonomiska tillväxt kan komma att påverkas som ett resultat av landets åldrande befolkning. Resultaten visar att Japan kommer att drabbas av sjunkande tillväxt på grund av den åldrande befolkningen. Likväl finns det möjliga lösningar till hands för att dämpa de negativa effekterna, exempelvis en ökad sysselsättningsgrad hos kvinnor, ökat humankapital, ökad invandring samt en kostnadseffektiv teknologisk utveckling. / Japan will face a major challenge with regard to its rapidly growing aging population combined with a reduction in its working population. This paper aims to explain the impact of Japan's aging population and the country's economic growth, and the factors that may mitigate these effects. The analysis is done using a modified Solow growth model as a theoretical base. This is done to get a more in-depth understanding of the factors that affect a country's economic growth. By using this model, that includes population age structure as a parameter, we have the basis for the empirical analysis of how Japan's growth may be affected as a result of the aging population. The results show that Japan will suffer from declining growth due to its aging population. However, there are possible solutions to mitigate the negative effects, such as increasing employment rates among women, increased human capital, increased immigration and a cost effective technology development.

<p>The population of Sweden is ageing as in almost every European country. Improved medical progresses and treatment options lead to a decreasing mortality at older ages, increasing life expectance and an advanced health of the elderly. Due to these improvements and the so called ‘baby- boomers’, a great number of persons born in the 1940s that will reach retirement age the coming years, their total number will increase strongly in the near future all over Sweden. To enable these elderly to live a normal, active and independent life as long as possible activities, services and special housing with improved accessibility and meeting places for elderly has to be provided. Thus, for local authorities it is essential to know the actual and favoured living conditions as well as environments of elderly. This study aims therefore to investigate the characteristic of preferred residential neighbourhoods of the elderly in the city of Norrköping. The demographic, social and crime situation was examined for the districts of the city using several methods from both Statistics and GIS. Statistical methods included classifications, indexes or indicators and bivariate correlations. A model was developed to combine demographic and social data to characterise districts. GIS was to a major extent used as a visualisation tool. Choropleth mapping and Kernel density estimations were used to illustrate distribution of elderly and crime. Preliminary global statistical tests were used to verify clustering in the crime data set. An accessibility analysis was conducted with the help of the network analyst tool. Results indicate that districts experiencing the highest total numbers and proportion of elderly are very distributed throughout the city of Norrköping. They are, with some exceptions, characterised by lower social status. Four districts of the city show considerable evidences of demographic ageing, experiencing a population pyramid formed like an urn. Beside districts where elderly constitute a bigger proportion of the population, they tend to live in districts characterised by a relatively high proportion of young adults aged between 20 and 29. Crime analyses have shown crime clusters in different parts of the city. A high proportion of elderly faces a high crime level in the districts Gamla staden, Nordantill and Hageby. However, it has been proved that only some hot spots of crime within these areas contribute to the high crime level. Districts such as Skarphagen, Såpkullen, Smedby and Linö, all (except Såpkullen) situated on the outskirts of the city, hold high or middle elderly and a low crime level. Accessibility analyses have shown that elderly aged over 80 do not live significant closer to health centres and the public transport stops compared to the age groups 20 – 65 and inhabitants aged between 65 and 79.</p>

Management strategies to prevent overfishing while achieving optimum yield vary according to the available data and life history of the fished stock. I evaluated two sets of management strategies for Pacific coast rockfish: strategies to set harvest limits for data-poor stocks, and strategies intended to protect the age structure of fished stocks. Setting Harvest Limits for Data-poor Stocks - The collapse of canary rockfish, Sebastes pinniger, in the northeast Pacific began more than two decades before the stock was officially declared overfished. The 2006 reauthorization of the Magnuson-Stevens Fishery Conservation and Management Act requires a scientifically-based harvest limit for all fished stocks, including those with data limited to catch. Two such "data-poor" methods are currently in use for the management of west coast stocks, depletion-corrected average catch (DCAC) and depletion-based stock reduction analysis (DB-SRA). To evaluate the performance of each method when challenged with catch and biological uncertainty, I retrospectively applied the methods to the catch and biological data available at the time of the first and second canary rockfish stock assessments in 1984 and 1990. In 1980 canary rockfish would be classified as "data-poor", and in 1990 as "data-rich". To evaluate the sensitivity of DCAC and DB-SRA to error in the catch data, harvest limits were estimated using both the historic catch data from each assessment, and the reconstructed catch data from the most recent stock assessment. In addition, harvest limits were estimated using simulated catch data sets for the years 1916 to 1983 with increasing variability around the true catch. DCAC and DB-SRA estimated harvest limits were significantly lower than the catch recommended in both the data-poor and data-rich stock assessments, but higher than the "true" overfishing limit. Use of current catch data improved the estimated harvest limit when the stock was data-poor, but not when the stock was data-rich. The simple methods responded to increasing error in the catch time series with decreasing mean estimates of the harvest limit, indicating that these methods are highly precautionary for this species, when the catch time series is the only source of error. Age Structure Management Strategies - In a variable oceanographic environment, a population with many reproductive age classes benefits not only from the increased fecundity of older fish; but also, in some species, an increase in larval fitness. Older females may also spawn at different times or over longer periods than younger females, increasing the probability of larvae encountering favorable environmental conditions. Despite the accumulating evidence for the importance of age structure to long-term population viability in harvested fish populations, long-lived west coast rockfish (Genus Sebastes) are managed with a biomass-based harvest control rule. I compared three strategies for age structure management, and evaluated the strategies relative to the status quo, biomass-based harvest control rules, across three rockfish life histories. I examined the tradeoff between yield and traditional management reference points, as well as performance measures that could serve as management reference points for age structure. Yield was reduced by strategies that maintain "old growth" age structure, but annual variation in the catch and the probability of becoming overfished were also reduced. The longest-lived rockfish benefited the most from strategies that maintained older fish in the population through dome-shaped selectivity. The shorter-lived rockfish benefited from adjustments in the catch limit based on the age composition of the catch one year previous. Achieving "pretty good yield" with management strategies that also decrease the potential for overexploitation is an important goal for stocks that are well-studied and those that are poorly understood; these investigations contribute to a growing literature on alternative approaches to sustainable fisheries management. / Graduation date: 2012