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Loboplusia coreana sp. nov. from South Korea, only the second species of a genus originally described from Costa Rica (Diptera: Cecidomyiidae, Winnertziinae)
No full textJaschhof, Mathias, Ham, Daseul, Bae, Yeon Jae (2018): Loboplusia coreana sp. nov. from South Korea, only the second species of a genus originally described from Costa Rica (Diptera: Cecidomyiidae, Winnertziinae). Zootaxa 4399 (1): 131-133, DOI: 10.11646/zootaxa.4399.1.1
Loboplusia coreana Jaschhof & Ham & Bae 2018, sp. nov.
No full textLoboplusia coreana Jaschhof & Ham sp. nov. (Figs 1–2) Diagnosis. Male genitalic characters to distinguish L. coreana (Figs 1–2) from L. zurqui (Jaschhof 2016: fig. 15A) (characters in parentheses) are as follows. The basomedial lobe of the gonostylus is slightly bent and slightly swollen apically (not bent and not swollen); the gonocoxites have a roundish, setae-bearing protrusion dorsoposteriorly (no such protrusion); the posterior corners of the tegmen are both protruding and serrate (tegmen without serrate protrusions); and the ninth tergite has a posteromedial protrusion with glabrous margin and a group of about eight setae at the center (posterior section microtrichose, broadly rounded to truncate). Other male characters. Body length 1.5 mm. Head. About 10 genal setae in a cluster. Eye bridge 2–3 ommatidia long dorsally. Scape and pedicel concolorous with flagellum, scape larger than pedicel, both setose. Flagellomeres 14. Neck of fourth flagellomere 1.3 times longer than node; node with a whorl of short setae basally, a crenulate whorl with long sensory hairs with hooded alveoli medially, a short line of such sensory hairs ventrodistally, several short hairshaped translucent sensilla distally, microtrichia only basally. Clypeus with only 2 setae. Labellum normal size and structure. Palpus slightly longer than head height, 4 subcylindrical, setae-bearing segments, first and second segments with inconspicuous, short, hair-shaped translucent sensilla. Thorax. Scutal setae sparse; scutellum with a single pair of setae; other sclerites asetose. Wing and legs as in L. zurqui (Jaschhof 2016: 231). Genitalia (Figs 1–2). Gonocoxites: ventral setae normal size, not conspicuously enlarged as in L. zurqui; ventral bridge membranous, asetose; dorsal apodemes interconnected forming wide bridge without anterior processes. Lateroposterior lobe of gonostylus much larger than basomedial lobe, cylindrical, apex bent dorsally, with conspicuously dense setae; basomedial lobe with strong tooth apically. Tegmen small in relation to gonocoxites; apex narrow-rounded; parameral apodemes long, straight, directed ventrolaterally. Ejaculatory apodeme thin, 2.5 times longer than tegmen. Female and larvae unknown. Etymology. The name refers to Korea, the only distribution known of this species. Type material. Holotype dissected and mounted in Canada balsam. Male, Republic of Korea, Gyeonggi-do, Gapyeong-gun, Buk-myeon, Jeokmok-ri, Garim, Gapyeong Entomological Research Center, 37°58´33´´N / 127°26´28´´E, 300 m a.s.l., 15 July 2016, light trap, Y.J. Bae leg. (in Entomological Museum of Korea University, Seoul). Discussion. The vast diversity of Diallactiini is found in the tropics rather than the temperate regions (Jaschhof 2016), a fact rendering Loboplusia coreana a remarkable discovery. Even more remarkable is the disjunct geographical distribution of Loboplusia, with one species each in the northern Neotropical and the eastern Palearctic region. Considering that the Diallactiini are a very ancient lineage (Jaschhof 2016), the present-day occurrence of Loboplusia might be relict and reflect a distribution that at some point in the past was conjunct and much more extensive. However, any attempt of interpreting the distributional pattern revealed here has to take the sparse availability of data into account: we simply don’t know yet, for instance, whether the distribution of Loboplusia in the Neotropics is confined to higher altitudes (where basically temperate conditions prevail), or whether other, still uncollected species occur in other parts of the world (as entire regions are practically unexplored for Diallactiini). Moreover, it is rather unlikely that the distribution as presently known for both L. zurqui and L. coreana reflect the total areas of these species. We would not be surprised to see that ongoing research reveals a genus Loboplusia that is more species-rich and has a basically pantropical distribution, with single species managing to adapt to temperate conditions. More data about the diversity and distribution of Diallactiini, including Loboplusia, are needed to resolve those issues. With respect to the provenance of Loboplusia coreana it is worth noting that the fungivorous subfamilies of Cecidomyiidae, including Winnertziinae, have remained largely unstudied in Korea until very recently; and the discovery described here is a first outcome of our efforts to close this gap of knowledge. Our data, mostly unpublished, suggest that the eastern Palearctic region hosts an extremely rich and diverse fauna of fungus-feeding cecids, including a considerable proportion of supposedly Oriental elements that are absent in the better investigated western Palearctic (e.g., Jaschhof 2000). In other words, for a better understanding of the Palearctic fauna we need to allocate more resources for taxonomic study to the east of the region, where the potential for making exciting discoveries is so patently obvious.Published as part of Jaschhof, Mathias, Ham, Daseul & Bae, Yeon Jae, 2018, Loboplusia coreana sp. nov. from South Korea, only the second species of a genus originally described from Costa Rica (Diptera: Cecidomyiidae, Winnertziinae), pp. 131-133 in Zootaxa 4399 (1) on page 131, DOI: 10.11646/zootaxa.4399.1.10, http://zenodo.org/record/120642
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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