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FIGURE 2 in First records of Heterotoma merioptera (Scopoli, 1763) and Aradus serbicus (Horváth, 1888) (Heteroptera: Miridae et Aradidae) from Germany
No full textFIGURE 2. Aradus serbicus. Compared to closely related species of the Aradus depressus-group, among other characters, females of Aradus serbicus show regularly rounded paratergites VIII similar to those of the males. Photo: G. Strauß.Published as part of Morkel, Carsten, 2010, First records of Heterotoma merioptera (Scopoli, 1763) and Aradus serbicus (Horváth, 1888) (Heteroptera: Miridae et Aradidae) from Germany, pp. 64-68 in Zootaxa 2651 on page 66, DOI: 10.5281/zenodo.19882
Heterotoma merioptera Scopoli 1763
No full textHeterotoma merioptera (Scopoli, 1763) (Miridae, Orthotylinae, Orthotylini) Material: Germany, Saxony, Daubitz NW Walddorf, Heiderandweg – Wolfsstein env., on Vaccinium myrtillus L., 6. ix. 2008, 1 Ψ, C. Morkel leg. et det. (Fig. 1) The comprehensive paper of Kment & Bryja (2006) summarises all information on Heterotoma merioptera available so far, providing revised distributional, biological, and ecological data as well as diagnostic characters. Previously frequently confused with the closely related H. planicornis (Pallas, 1772) of generally European distribution, the occurrence of H. merioptera seems to be limited to the southeastern European countries, extending to Asia Minor and the Near East (Kment & Bryja 2006). H. merioptera is considered to be the more thermophilous of the two species, occurring in natural and semi-natural habitats (Kment & Bryja 2006). The current record from the eastern border of Germany extends the known distributional area of H. merioptera at its northwestern range. The ecological finding circumstances on Vaccinium myrtillus in pine forest are similar to those given by Herczek (1979, cited in Kment & Bryja 2006) in nearby Poland. As Heteroptera are valuable indicators of climatic change (Rabitsch 2008), further investigations should prove if H. merioptera may continue to extend its distributional range, and thus be considered as a species recently benefiting from global warming.Published as part of Morkel, Carsten, 2010, First records of Heterotoma merioptera (Scopoli, 1763) and Aradus serbicus (Horváth, 1888) (Heteroptera: Miridae et Aradidae) from Germany, pp. 64-68 in Zootaxa 2651 on page 64, DOI: 10.5281/zenodo.19882
Aradus serbicus Horvath 1888
No full textAradus serbicus (Horváth, 1888) (Aradidae) Material: Germany, Hesse, Kellerwald-Edersee National Park, 425 m a.s.l., on Fagus sylvatica, 27.v. – 24. vi. 2008, 1 Ψ, U. Schaffrath leg., C. Morkel det. (Fig. 2) The distribution area of the extremely rare A. serbicus known so far, ranges from southern France and Italy to Greece, including Austria and the Balkan peninsula with the countries Croatia, Serbia, Hungary, Bulgaria, and Macedonia (Heiss & Péricart 2007). Among the associated trees, chiefly Fagus sp. is documented; however, also Quercus sp. in combination with Fagus from records from Greece, are mentioned (Heiss 2006, Heiss & Péricart 2007). The current extralimital record of A. serbicus was obtained from a pitfall trap exposed in a living beech tree (Fig. 3) split by lightning several decades ago, containing a large rot-hole as well as specific fungi infestation, including Oudemansiella mucida (Schrad. ex Fr.), a species characteristic of old beech forests. The associated coleopterous fauna contained several species (Schaffrath, pers. comm. 2010) classified as primeval forest relict species according to Müller et al. (2005). The habitat itself, located on a steep slope, represents one of the small patches of virgin forest within Kellerwald-Edersee National Park showing a very long continuity concerning dead wood quality and quantity due to the impossibility of forestry. The vast majority of palaearctic Aradidae are known to be dendrobiont and mycetophagous, relying more or less specifically on wood- and tree-infesting fungi (Heiss & Pericart 2007). For some of the most rarely found species within Central Europe, a temporal continuity of several centuries in the occurrence of dead wood structures of various decomposition stages (‘habitat tradition’) necessary for the colonisation by particular fungi species (Goßner et al. 2007) is hypothesized to be essential. Judging from the circumstances of finding of the recent record as well as published data (Heiss 2006), A. serbicus is considered to feed on a specific range of wood-dwelling fungi limited to broad-leafed trees or even exclusively to Fagus sylvatica. Moreover, the recent record strongly indicates a long habitat tradition to have been critical for the occurrence of A. serbicus. Thus, considering the extralimital documentation of A. serbicus in combination with the habitat conditions described, and the only 17 localities recorded so far (with the correct determination of A. serbicus for ten of them confirmed by Heiss & Péricart 2007), the species is considered to represent a primeval forest relict in the closest sense (see Müller et al. 2005) within Central Europe. Records of the closely related Aradus truncatus Fieber, 1860 of European distribution are confirmed mainly from southern Europe by Heiss & Péricart (2007); those from remaining countries, especially Germany, Poland, Denmark, Sweden, and Finland, should be verified in order to clarify if some of them represent A. serbicus, and if the occurrence of A. serbicus corresponds with the distribution area of Fagus sylvatica. Further investigations concerning the biology of A. serbicus should be conducted, in order to support the hypothesis regarding the species´habitat preferences and to obtain data on its host fungi..Published as part of Morkel, Carsten, 2010, First records of Heterotoma merioptera (Scopoli, 1763) and Aradus serbicus (Horváth, 1888) (Heteroptera: Miridae et Aradidae) from Germany, pp. 64-68 in Zootaxa 2651 on pages 65-68, DOI: 10.5281/zenodo.19882
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
Variations 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
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Get PDFWe 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
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