1,721,187 research outputs found
Habitats hold a phylogenetic signal of past climatic refugia in the Pyrenean range, a biogeographical crossroad
No full textHabitats hold a phylogenetic signal of past climatic refugia in the Pyrenean range, a biogeographical crossroad. This set of data come from the SIVIM database, and original data produced from our analysis. Used to test refugial locations in the PyreneesPeer reviewe
Living at the limit in a major biogeographical crossroad. The flora of the Pyrenean Mountains
No full textMountains shelter high biological diversity and constitute important barriers for species distributions. They often contain sets of species whose populations occur at their range limit (peripheral species), which according to the “Centre-Periphery” hypothesis are expected to perform worse and be more vulnerable than in central positions. Our study investigates this hypothesis by examining the potential vulnerability (abundance and ecological characteristics) of the flora of the Pyrenees, a major biogeographical crossroad containing a large proportion of the total European plant diversity. We also assess the contribution of peripheral plants in lists of conservation. We compared regional area of occupancy, local abundance, elevation, habitat and soil type preferences, of more than 2,600 central, peripheral and endemic native vascular plants of the Pyrenees mountains. Their conservation status was also assessed at different spatial scales. A quarter of Pyrenean species are at their distributional limit. Like endemics, peripherals have lower continental and regional occupancy than central ones, but their local abundance does not differ significantly. Endemics and peripherals are also more likely to be soil specialists at high elevation, mainly in (sub)alpine grasslands and rocky areas. Although occurring in different ecological conditions, peripheral species at their rear-edge (mainly Boreoalpine and Eurosiberian) tend to be more widespread regionally but equally abundant locally than leading- edge species (mainly Mediterranean). Peripheral taxa constitute a large portion of Pyrenean species protected at different geographic or administrative scales (31-56%), of highest importance in the Pyrenean red list. Peripheral species show contrasting ecology at the leading- and rear-edge, contribute substantially to the high plant diversity of the Pyrenean biogeographical crossroad and to the lists of priority species for conservation. Integrative biogeographical assessments of the rarity and ecology of mountain floras provide a better overview than administrative ones to establish priorities for conservation.OPCC-POCTEFA EFA (235/1) and VULBIMON (CGL2017-90040-R).Peer reviewe
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Variations on the Author
Full text link“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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Harnessing the power of stories: Evaluating complex tourism interventions through a ‘most significant change’ approach
No full textThis study explores the power of the story-based ‘Most Significant Change’ evaluation method to evidence the impacts of a complex sustainable tourism intervention implemented through the cross-border EU-INTERREG ‘EXPERIENCE’ project across six regions on the French-English Channel. The method provides a participatory evaluation framework to capture contextual changes by collecting and analysing personal stories of change considered significant by those directly affected. As intervention-driven changes are often unpredictable and non-linear, the method supports researchers in exploring and learning about unexpected or complex outcomes emerging from the stories. Findings highlight the effectiveness of this narrative approach in capturing complex, unforeseen changes that may not be quantifiable through pre-defined performance indicators. The study contributes to evaluating EU-funded regional development programmes in tourism
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
- …
