1,721,425 research outputs found
Wanniyala hakgala in Huber & Benjamin 2005
No full textWanniyala hakgala Huber & Benjamin, 2005 Wanniyala hakgala Huber & Benjamin, 2005: 3317, figs 5f–i, 7e–h, 8 (♂ ♀, Sri Lanka). Diagnosis (amendments; see Huber & Benjamin 2005). Males are distinguished from congeners by retrolateral sclerite of procursus with large sickle-shaped dorsal process (Huber & Benjamin 2005: figs 7e, f) and by modification of clypeus (pair of small lateral processes, with median indistinct hump). Females are easily distinguished from most known congeners (except W. mudita sp. n., W. orientalis sp. n.) by shape of epigynum (strongly projecting and pointed in lateral view; Huber & Benjamin 2005: fig. 5i); they differ from both species by details of internal genitalia (elongated pore plates; Huber & Benjamin 2005: fig. 7h); from W. mudita also by narrower anterior ‘valve’. New record. SRI LANKA: 1♂ in pure ethanol, ZFMK (Benj 51), Uva Province, Badulla District, Passara-Ella road (B113), Mausagalla [=Maussagolla] (6.909°N, 81.132°E), 22.i.2014 (S.P. Benjamin, N. Athukorala). Description (amendments; see Huber & Benjamin 2005). Procursi of male from Mausagalla appear identical in all aspects to those of the type locality illustrated in Huber & Benjamin (2005, figs 7e, f). Measurements of this specimen: tibia 1: 3.9; distance between tips of cheliceral apophyses: 0.79. Sternum black with light median mark anteriorly; dark rings subdistally on femora and tibiae. Distribution. Known from two localities in central Sri Lanka (Fig. 227). The 4♀ from Kandy (deposited in RMNH) identified in Huber & Benjamin (2005) as W. hakgala are here considered to represent W. mudita (see below). The single female from Kumbukana (ZMUT AA 3632) identified in Huber & Benjamin (2005) as W. hakgala was reexamined and is here considered to represent W. orientalis (see below).Published as part of Huber, Bernhard A., 2019, The pholcid spiders of Sri Lanka (Araneae: Pholcidae), pp. 1-57 in Zootaxa 4550 (1) on pages 33-34, DOI: 10.11646/zootaxa.4550.1.1, http://zenodo.org/record/262503
Wanniyala agrabopath Huber & Benjamin 2005
No full textWanniyala agrabopath Huber & Benjamin, 2005 Figures 126–128 Wanniyala agrabopath Huber & Benjamin, 2005: 3312, figs 5a–e, 6, 7a–d (♂ ♀, Sri Lanka). Eberle et al. 2018 (molecular data). Diagnosis (amendments; see Huber & Benjamin 2005). Both males and females differ from all known congeners by light sternum (either entirely ochre-yellow or with lateral dark marks). Males are distinguished from congeners by details of palp (shape of retrolateral sclerite of procursus; processes of palpal trochanter, and shape of bulbal apophysis; Huber & Benjamin 2005: figs 7a, b) and by modification of clypeus (pair of small lateral processes, with median indistinct hump; Huber & Benjamin 2005: fig. 6c). Epigyna and female internal genitalia strongly resemble those of W. mapalena sp. n. and W. labugama sp. n. (epigynum slightly projecting and evenly rounded in lateral view; internal genitalia with narrow anterior ‘valve’, pair of v-shaped membranous elements similar to W. mapalena, and roundish pore plates; Huber & Benjamin 2005: figs 5d and 7c, d). New records. SRI LANKA: 4♂ 5♀, ZFMK (Ar 20075), and 4♀ in pure ethanol, ZFMK (SL143), Central Province, Hakgala Forest (6.930°N, 80.814°E), 1790 m a.s.l., 14.iii.2017 (B.A. Huber). 1♂ (not examined but photos of palp kindly provided by S.P. Benjamin), NIFS (Pho-052), Hakgala Strict Nature Reserve (6.911°N, 80.793°E), 1915 m a.s.l., 22.i.2015 (S.P. Benjamin et al.). Description (amendments; see Huber & Benjamin 2005). Tibia 1 in specimens from Hakgala: four males 2.9, 3.0, 3.0, 3.2; five females: 2.1–2.5 (mean 2.4). Additional measurements in one male: palpal tibia length: 0.65; distance between tips of cheliceral apophyses: 0.71. Male palps of specimens from Hakgala appear identical in all aspects to those of the type locality illustrated in Huber & Benjamin (2005, figs 6a, b, 7a, b). There seems to be considerable variation in coloration among localities: carapace in males from Hakgala with variably distinct lateral bands, in one male divided into three marks; sternum in males from Hakgala uniformly pale ochre-yellow (as in specimens from type locality but unlike specimens from Horton Plains (cf. Huber & Benjamin 2005); subdistal dark rings on tibiae always distinct in males from Hakgala, other rings (femora subdistally, tibiae proximally) less distinct or barely visible; all rings distinct in females from Hakgala. Males and females from Hakgala with distinct pair of black bands on clypeus (unlike specimens from type locality). Abdomen in males from Hakgala either without ventral pattern (as in specimens from type locality) or with pair of small (sometimes fused) marks near spinnerets; all females from Hakgala with small marks near spinnerets (sometimes indistinct), never with large black marks behind epigynum (as in female from Horton Plains illustrated in Huber & Benjamin (2005: fig. 5e). All females (but not males) from Hakgala with distinct black round marks in book-lung area. Natural history. The spiders were most abundant under large leaves on the ground. When disturbed, they did not vibrate nor run away but remained still on their flimsy webs on the underside of the leaf in a unique position, lying flat on their sides (cf. W. ohiya sp. n.; Fig. 139). Distribution. Known from several high elevation localities in central Sri Lanka (Fig. 226). The coordinates of the type locality in the original description are ~ 5 km NE of the actual collecting site, which is the Agrapatana- Bopathalawa Forest Reserve at 6.843°N, 80.678°E.Published as part of Huber, Bernhard A., 2019, The pholcid spiders of Sri Lanka (Araneae: Pholcidae), pp. 1-57 in Zootaxa 4550 (1) on page 32, DOI: 10.11646/zootaxa.4550.1.1, http://zenodo.org/record/262503
Wanniyala Huber & Benjamin 2005
No full textWanniyala Huber & Benjamin, 2005 Wanniyala Huber & Benjamin, 2005: 3311. Type species: W. agrabopath Huber & Benjamin, 2005 (Sri Lanka). Notes. Wanniyala is currently considered a Sri Lankan endemic genus but its apparent absence in India and the Western Ghats in particular is difficult to interpret. With only eleven pholcid species (three of them introduced), India ranks among the most poorly studied countries in the world with respect to pholcid spiders. Wanniyala spiders are cryptic litter-dwellers and may have been overlooked by previous generalist collectors. In Sri Lanka, Wanniyala has experienced a remarkable radiation, mainly in the southwestern wet climatic zone and the central highlands. All known species are similar to each other in their morphology (see below) and apparently also genetically (five species included in the analysis of Eberle et al. 2018), suggesting a rather recent radiation. However, available data also suggest that the closest relatives of Wanniyala are African, Madagascan, and Mediterranean taxa (Eberle et al. 2018; Huber et al. 2018). Thus, for Wanniyala Sri Lanka might be both a ‘museum’ and a ‘cradle’ (cf. Chown & Gaston 2000). The procursus is highly complex and species-specific but always includes the same five distal structures that are hinged against a simple proximal part (labeled in Figs 160–161, 167–168, 176–177): a retrolateral sclerite; a ventral transparent process; two prolateral sclerites; and a prolateral transparent process that usually has a bifid tip.Published as part of Huber, Bernhard A., 2019, The pholcid spiders of Sri Lanka (Araneae: Pholcidae), pp. 1-57 in Zootaxa 4550 (1) on pages 31-32, DOI: 10.11646/zootaxa.4550.1.1, http://zenodo.org/record/262503
FIGURE 5 in Two new species of the spider genus Wanniyala Huber & Benjamin, 2005 (Araneae Pholcidae) from Sri Lanka
No full textFIGURE 5. Distribution records of the species of Wanniyala from Sri Lanka. 1 Wanniyala agrabopath Huber & Benjamin, 2005, 2 W. badulla Yao & Li sp. nov., 3 W. batatota Yao & Li sp. nov., 4 W. hakgala Huber & Benjamin, 2005, 5 W. labugama Huber, 2019, 6 W. mapalena Huber, 2019, 7 W. mudita Huber, 2019, 8 W. ohiya Huber, 2019, 9 W. orientalis Huber, 2019, 10 W. upekkha Huber, 2019, 11 W. viharekele Huber, 2019. Locality coordinates for all known species are copied from the original publications (see Huber & Benjamin 2005: 3312, 3317 and Huber 2019: 34–48).Published as part of Xin, Yafei, Yao, Zhiyuan & Li, Shuqiang, 2020, Two new species of the spider genus Wanniyala Huber & Benjamin, 2005 (Araneae Pholcidae) from Sri Lanka, pp. 566-574 in Zootaxa 4759 (4) on page 573, DOI: 10.11646/zootaxa.4759.4.7, http://zenodo.org/record/374109
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
FIGURE 2. Wanniyala badulla Yao & Li in Two new species of the spider genus Wanniyala Huber & Benjamin, 2005 (Araneae Pholcidae) from Sri Lanka
No full textFIGURE 2. Wanniyala badulla Yao & Li sp. nov., holotype male (C–F) and paratype female (A–B, G–H). A. Epigynum, ventral view; B. Vulva, dorsal view, arrow points at large sclerite; C. Bulb, prolateral view; D. Chelicerae, frontal view; E–H. Habitus (E, G. Dorsal view; F. Lateral view; H. Ventral view). Scale bars: 0.10 (A–D), 0.50 (E–H).Published as part of Xin, Yafei, Yao, Zhiyuan & Li, Shuqiang, 2020, Two new species of the spider genus Wanniyala Huber & Benjamin, 2005 (Araneae Pholcidae) from Sri Lanka, pp. 566-574 in Zootaxa 4759 (4) on page 569, DOI: 10.11646/zootaxa.4759.4.7, http://zenodo.org/record/374109
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
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