نتایج جستجو برای: game reserves
تعداد نتایج: 115960 فیلتر نتایج به سال:
The body condition score (BCS) system is a subjective scoring method of evaluating the energy reserves of dairy animals to provide better understanding of biological relationships between body fat, milk production and reproduction. This method helps in adopting the optimum management practices to derive maximum production and maintain optimum health of the livestock. In this study, a new BCS sy...
Marine reserves, areas closed to all forms of fishing, continue to be advocated and implemented to supplement fisheries and conserve populations. However, although the reproductive potential of important fishery species can dramatically increase inside reserves, the extent to which larval offspring are exported and the relative contribution of reserves to recruitment in fished and protected pop...
We examined whether nitrogen (N) and carbohydrates reserves allow Veratrum album, an alpine forb, to start spring growth earlier than the neighbouring vegetation and to survive unpredictable disturbances resulting in loss of above-ground biomass. * Seasonal dynamics of plant reserves, soil N availability and vegetation growth were monitored. Veratrum album shoots were experimentally removed whe...
The world is a complex place. To simplify this complexity, people often reduce it to simple either–or choices— black or white, do or don’t, yes or no, winners or losers, nature or nurture, and so on. Even our computer systems are based on binary logic. Conservationists are people, so we tend to do this too. Case in point: protected areas. Protected areas have long been the cornerstone of conser...
Nature reserves are established to protect ecosystems and rare flora and fauna. However, with the rapid development of the social economy, many nature reserves are facing enormous pressures from human activities. The assessment of the sustainability of nature reserves is a fundamental task for the planning and management of such areas. In this study, the sustainability of China’s 319 national n...
In this paper, we use an extension of the deterministic mathematical model of an anthrax epizootic of Hahn and Furniss to study the effects of anthrax transmission, carcass ingestion, carcass induced environmental contamination, and migration rates on the persistence or extinction of animal populations. We compute the basic reproduction number R(0) for the anthrax epizootic model with and witho...
Recently, a dramatic accumulation of foreign exchange reserves has been widely observed among developing countries. The purpose of this paper is to explore what macroeconomic impacts accumulated foreign reserves have in developing countries. In the first part, we analyze a simple open economy model where increased foreign reserves reduce costs of liquidity risk. Given the amount of foreign rese...
Amandus Polanus from Opava, later professor of theology at the University Basel, visited Prague several times. In his diary, preserved in Library he describes visit to August 1591 considerable detail. The diary entry informs us that stayed Castle inn Hans Turek. He had a thorough tour castle with all its buildings and gardens, even opportunity see Emperor Rudolf II coming out cathedral. also pa...
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