1,721,059 research outputs found
FIGURE 15 in Two new species of Asphondyliini (Diptera: Cecidomyiidae) associated with Bauhinia brevipes (Fabaceae) in Brazil
No full textFIGURE 15. Gall of Asphondylia microcapillata sp. n. on Bauhinia brevipes.Published as part of Maia, Valéria Cid & Fernandes, G. Wilson, 2005, Two new species of Asphondyliini (Diptera: Cecidomyiidae) associated with Bauhinia brevipes (Fabaceae) in Brazil, pp. 27-40 in Zootaxa 1091 (1) on page 33, DOI: 10.11646/zootaxa.1091.1.2, http://zenodo.org/record/505107
FIGURES 22–24 in Two new species of Asphondyliini (Diptera: Cecidomyiidae) associated with Bauhinia brevipes (Fabaceae) in Brazil
No full textFIGURES 22–24. Schizomyia macrocapillata sp. n. 22. Female midtarsal claw and empodium (lateral). 23. Male abdominal segment 5 to end (dorsolateral). 24. Female abdominal segment 6 to end (dorsolateral).Published as part of Maia, Valéria Cid & Fernandes, G. Wilson, 2005, Two new species of Asphondyliini (Diptera: Cecidomyiidae) associated with Bauhinia brevipes (Fabaceae) in Brazil, pp. 27-40 in Zootaxa 1091 (1) on page 35, DOI: 10.11646/zootaxa.1091.1.2, http://zenodo.org/record/505107
FIGURES 25–28 in Two new species of Asphondyliini (Diptera: Cecidomyiidae) associated with Bauhinia brevipes (Fabaceae) in Brazil
No full textFIGURES 25–28. Schizomyia macrocapillata sp. n. 25. Male terminalia (dorsal). 26. Female tergite 8 and ovipositor. 27. Pupal head (frontal). 28. Pupal prothoracic spiracle.Published as part of Maia, Valéria Cid & Fernandes, G. Wilson, 2005, Two new species of Asphondyliini (Diptera: Cecidomyiidae) associated with Bauhinia brevipes (Fabaceae) in Brazil, pp. 27-40 in Zootaxa 1091 (1) on page 36, DOI: 10.11646/zootaxa.1091.1.2, http://zenodo.org/record/505107
FIGURES 7–9 in Two new species of Asphondyliini (Diptera: Cecidomyiidae) associated with Bauhinia brevipes (Fabaceae) in Brazil
No full textFIGURES 7–9. Asphondylia microcapillata sp. n. 7. Male abdominal segment 3 to end (dorsolateral). 8. Female abdominal segment 5 to end (dorsolateral). 9. Male terminalia (dorsal).Published as part of Maia, Valéria Cid & Fernandes, G. Wilson, 2005, Two new species of Asphondyliini (Diptera: Cecidomyiidae) associated with Bauhinia brevipes (Fabaceae) in Brazil, pp. 27-40 in Zootaxa 1091 (1) on page 30, DOI: 10.11646/zootaxa.1091.1.2, http://zenodo.org/record/505107
FIGURES 5 8 in A new genus and species of gall midge (Diptera: Cecidomyiidae) associated with Waltheria indica L. (Sterculiaceae)
No full textFIGURES 5 8. Anisodiplosis waltheriae Maia, sp. nov. 5, Female wing. 6, Female midtarsal claw and empodium, lateral view. 7, Male abdominal segment 6 to end, dorsolateral view. 8, Female abdominal segment 6 to end, lateral view. Scale bars in mm.Published as part of Maia, Valéria Cid & Fernandes, G. Wilson, 2005, A new genus and species of gall midge (Diptera: Cecidomyiidae) associated with Waltheria indica L. (Sterculiaceae), pp. 27-36 in Zootaxa 1060 on page 32, DOI: 10.5281/zenodo.17016
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
Data from: Experimentally reducing species abundance indirectly affects food web structure and robustness
No full textStudies on the robustness of ecological communities suggest that the loss or reduction in abundance of individual species can lead to secondary and cascading extinctions. However, most such studies have been simulation-based analyses of the effect of primary extinction on food web structure. In a field experiment we tested the direct and indirect effects of reducing the abundance of a common species, focusing on the diverse and self-contained assemblage of arthropods associated with an abundant Brazilian shrub, Baccharis dracunculifolia D.C. (Asteraceae). Over a 5-month period we experimentally reduced the abundance of Baccharopelma dracunculifoliae (Sternorrhyncha: Psyllidae), the commonest galling species associated with B. dracunculifolia, in 15 replicate plots paired with 15 control plots. We investigated direct effects of the manipulation on parasitoids attacking B. dracunculifoliae, as well as indirect effects (mediated via a third species or through the environment) on 10 other galler species and 50 associated parasitoid species. The experimental manipulation significantly increased parasitism on B. dracunculifoliae in the treatment plots, but did not significantly alter either the species richness or abundance of other galler species. Compared to control plots, food webs in manipulated plots had significantly lower values of weighted connectance, interaction evenness and robustness (measured as simulated tolerance to secondary extinction), even when B. dracunculifoliae was excluded from calculations. Parasitoid species were almost entirely specialized to individual galler species, so the observed effects of the manipulation on food web structure could not have propagated via the documented trophic links. Instead, they must have spread either through trophic links not included in the webs (e.g. shared predators) or non-trophically (e.g. through changes in habitat availability). Our results highlight that the inclusion of both trophic and non-trophic direct and indirect interactions is essential to understand the structure and dynamics of even apparently discrete ecological communities.,Galler and parasitism dataData from an experimental manipulation on galler species and their parasitoids on the host plant species Baccharis dracunculifolia, carried out in Serra do Cipó, Minas Gerais state, south east Brazil. In the experiment the abundance of galler M7 was reduced in the replicated exclusion treatment plots. (Paras = parasitoid; paras_corrected = parasitism was corrected where parasitoids were gregarious so that the proportion parasitised was never more than 1)Barbosa_Galler_and_Parasitism_data_DRYAD.xlsxFood Web MetricsData from an experimental manipulation on galler-parasitoid food webs on the host plant species Baccharis dracunculifolia, carried out in Serra do Cipó, Minas Gerais state, south east Brazil. In the experiment the abundance of galler M7 was reduced in the replicated exclusion treatment plots. Food web metrics are shown for food webs including and excluding the manipulated galler M7.Barbosa_Food_Web_Metrics_data_DRYAD.xlsx</span
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
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