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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Sustainable Landscape Management and Planning
No full textDynamic changes of landscape structure affect the abundance and distribution of organisms. Currently, changing land-use is one of the major forces altering ecosystem services in landscapes globally. Human activities are transforming land at a faster rate and greater extent than at any time in history. This is a perspective challenge for research in the field of emerging sustainability science. The human conversion of natural habitats and land use change is not only a local/regional phenomenon but can be considered as one of important global change drivers. Some of the impacts of global change on biodiversity can be studied only at the landscape scale, such as the climate change-induced shift of vegetation zones. A landscape perspective fosters a multi-scale approach to sustainable landscape management and landscape planning. Additionally, a landscape scale is very useful for the innovative application of the common management paradigm to multiple uses in agriculture, forestry and water resource management. The need for sustainable landscape management and planning is now obvious. Landscape conservation seems to be a new paradigm for the conservation of biodiversity. This Special Issue (SI) of the Sustainability journal is focused on building a bridge between scientific theory and the practice of landscape management and planning based on the application of sustainability as a key conceptual framework. Papers dealing with various theoretical studies and case studies of the best practice for sustainable landscape management and planning across diverse landscapes around the world are included
Comparison of Bird-Species Richness Between 1987 and 2024 Reveals the Urban Forest as a Stable Biodiversity Refugium in a Dynamic Urbanized Landscape
No full textUrban forests provide many ecosystem services in urbanized landscapes, including biodiversity conservation. The sustainable management of urban forests requires a thorough understanding of biodiversity changes in the context of rapid urbanization. As biodiversity in rapidly changing urban areas is very dynamic, we need a better understanding of long-term biodiversity changes in urban forests. Birds are very good bioindicators of urban forest biodiversity because they are strongly habitat-sensitive. However, a major knowledge gap exists in long-term trends in bird diversity in temperate urban forests. This study analyzed a comparison of bird-species richness in a temperate Central European urban forest over a time span of 37 years. Bird-counts using the standard line-transect method conducted in 2023–2024 were compared with older field data from 1987 gained using the same method in a lowland hardwood floodplain forest in the Czech Republic. The results revealed significant faunistic similarities in the bird-species diversity of an urban forest during the 1987–2024 period. The high local alpha diversity of the bird community (42 nesting bird species) as well as the relatively high long-term stability in bird richness indicated the importance of the studied urban forest as a stable biodiversity refugium in a dynamic urbanized landscape. Therefore, urban forests can be considered very stable biodiversity refugia in dynamically changing urban areas
RESTORATION OF THE RIVER SYSTEM IN THE FLOODPLAIN FORESTS CASE STUDY FROM THE CZECH REPUBLIC
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No full textVariations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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