نتایج جستجو برای: nature reserves
تعداد نتایج: 324438 فیلتر نتایج به سال:
Climate change and intensified human activity have altered the landscape pattern of nature reserves are expected to induce persistent changes in habitat quality. Using GIS technology ecological theories, we quantitatively analyzed fragmentation characteristics driving factors for interior peripheries Qinling–Daba Mountains during 2010–2017. spatial principal component analysis, indices, Geodete...
Evictions have been shown to be a mechanism of primitive accumulation in nature conservation. This paper adds an historical analysis the discussion on conservation by exploring seemingly innocuous White belonging land South Africa's private reserves. Contemporary articulations are replete with stories and images male “pioneers” from colonial era who, upon arrival “empty lands”, were able create...
The uncertain and variable nature of renewable energy sources in modern power systems raises significant challenges in achieving the dual objective of reliable and economically efficient system operation. To address these challenges, advanced scheduling strategies have evolved during the past years, including the co-optimization of energy and reserves under deterministic or stochastic Unit Comm...
Abstract This contribution fills the Diptera biodiversity knowledge gap of two National Nature Reserves in east Slovakia. In total, 53 flies species from 24 families were confirmed NNR Dreveník and Sivá Brada. Among them tree new records Dolichopodidae for fauna Slovakia: Campsicnemus magius (Loew, 1845), Chrysotus palustris Verrall, 1876, Ephydridae: Notiphila ( Agrolimna ) uliginosa Haliday, ...
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...
Where is the UK's pollinator biodiversity? The importance of urban areas for flower-visiting insects
Insect pollinators provide a crucial ecosystem service, but are under threat. Urban areas could be important for pollinators, though their value relative to other habitats is poorly known. We compared pollinator communities using quantified flower-visitation networks in 36 sites (each 1 km(2)) in three landscapes: urban, farmland and nature reserves. Overall, flower-visitor abundance and specie...
An increasing focus of interest in ponds over the last two decades arose largely because of concerns at the loss of ponds in intensively developed landscapes. In the UK pond numbers declined from approximately 800,000 in the nineteenth century to 200,000 by the 1980s. Since then pond numbers have started to increase. The focus on overall pond numbers overlooks the importance of the history and ...
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