1,720,969 research outputs found
FIGURE 1. Most parsimonious tree obtained using TNT under implied weighting and a k in Stevenia gilasiani sp. nov. (Diptera: Rhinophoridae): the first woodlouse fly with male sexual-patches
No full textFIGURE 1. Most parsimonious tree obtained using TNT under implied weighting and a k-value of 8.594.Published as part of Gisondi, Silvia, Lenzi, Alice, Ziegler, Joachim, Giulio, Andrea Di & Cerretti, Pierfilippo, 2019, Stevenia gilasiani sp. nov. (Diptera: Rhinophoridae): the first woodlouse fly with male sexual-patches, pp. 423-431 in Zootaxa 4571 (3) on page 425, DOI: 10.11646/zootaxa.4571.3.10, http://zenodo.org/record/261265
FIGURES 2–5 in Stevenia gilasiani sp. nov. (Diptera: Rhinophoridae): the first woodlouse fly with male sexual-patches
No full textFIGURES 2–5. Stevenia gilasiani Ziegler, Gisondi & Cerretti sp. nov. (holotype ♂). 2. Habitus in lateral view. 3. Head in lateral view. 4. Right wing in dorsal view. 5. Head in frontal view.Published as part of Gisondi, Silvia, Lenzi, Alice, Ziegler, Joachim, Giulio, Andrea Di & Cerretti, Pierfilippo, 2019, Stevenia gilasiani sp. nov. (Diptera: Rhinophoridae): the first woodlouse fly with male sexual-patches, pp. 423-431 in Zootaxa 4571 (3) on page 426, DOI: 10.11646/zootaxa.4571.3.10, http://zenodo.org/record/261265
Robber flies and hover flies (Insecta, Diptera, Asilidae and Syrphidae) in beech forests of the central Apennines: a contribution to the inventory of insect biodiversity in Italian State Nature Reserves
Full text linkThe present paper describes a sampling-event dataset on species belonging to two families of Diptera (Syrphidae and Asilidae) collected between 2012 and 2019 in two Italian beech forests located in the central Apennines. The reference dataset consists of an annotated checklist and has been published on Zenodo. Syrphidae and Asilidae are two widespread and key ecological groups, including predator, pollinator and saproxylic species. Despite their pivotal role in both natural and man-made ecosystems, these families are still poorly known in terms of local distribution and open-access sampling-event data are rare in Italy.This open-access dataset includes 2,295 specimens for a total of 21 Asilidae and 65 Syrphidae species. Information about the collection (e.g. place, date, methods applied, collector) and the identification (e.g. species name, author, taxon ID) of the species is provided. Given the current biodiversity crisis, the publication of checklists, sampling-event data and datasets on insect communities in open-access repositories is highly recommended, as it represents the opportunity to share biodiversity information amongst different stakeholders. Moreover, such data are also a valuable source of information for nature reserve managers responsible for monitoring the conservation status of protected and endangered species and habitats and for evaluating the effects of conservation actions over time
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
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
Engaging me softly: Comparing social drivers for continuative citizens' participation in a long-term citizen science initiative on protected species monitoring
Full text linkThe engagement of volunteers in Citizen Science (CS) projects is a relevant issue that needs to be addressed to ensure long-term sustainability, scientific relevance, and public participation. Given this, the present paper analyses the social drivers of volunteers' involvement in a long-term CS initiative to monitor protected species and habitats all over Italian national territory. This initiative was initially born as the LIFE11 NAT/IT/000252 MIPP (Monitoring of Insects with Public Participation), then changed name to "InNat" benefitting from Italian national fundings, and it finally ended in 2024. Overall, it counts more than 1600 participants to whom a dedicated survey was submitted in 2022 to compare and analyse different factors potentially driving participation (potential enablers) and fostering engagement within the project. Based on the survey results (22.3% response rate of 1632 invitations sent), different drivers for participation are modelled (socio-demographic features, interest in scientific topics, environmental attitudes) considering the following main factors: (i) the level of commitment to the initiative, (ii) the seniority of the citizen scientist involved, (iii) the attitudes towards nature conservation and species monitoring, (iv) the value assigned to CS activities. In this context, socio-demographic variables have been compared to attitudes and practices connected to open-air monitoring activities (e.g., recording protected species and habitats by taking pictures in nature). The proposed analyses tackle a variety of cultural and social components as well as their relationship, highlighting some of the features (e.g., active interest in CS activities reverberating in both commitments to engage other volunteers and active search for CS initiatives) that characterize constant participation. We classified volunteers into two categories (i.e., Consistent Volunteers and Non-Consistent Volunteers), comparing these two categories along potential enablers of engagement. Results show homogeneity among volunteers for several parameters (e.g., similar education level, age, occupational status) but also differences in personal motivation and active interest in citizen science initiatives
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