139,128 research outputs found

    Tomás B. Watts

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    Tomás B. Watts, hijo de quien fuera el Cónsul británico Edward Watts

    Daploeuros Watts 2011

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    Daploeuros Watts, 2011 Diagnosis. Length 6–11mm. Eyes small, distance from subgenal ridge to bottom of eye a little more than diameter of eye, subantennal groove deep, with supraantennal ridge separating groove from eye, subantennal groove deep, with supraantennal ridge separating groove from eye, subgenal ridge without buttonhole; antenna without enlarged scape, antennomeres 2 & 3 not reduced; labial palpi straight (sensu Watts & Zwick 2019); mandible with one strong tooth, molar without small spines; pronotum transverse, anterolateral angles strongly produced forward; pronotal process broad at apex, corresponding notch in mesoventrite well marked; mesoventral process about twice as wide as long; mesepisternum rugose. Penis moderately elongate, trigonium bilobed, tegmen without styli (Figs 60–62 in Watts 2011). Female micropterous; ventrite 4 with a row of long setae near posterior edge; gonocoxites elongate, moderately sclerotized, gonostyli moderately long, apical; prehensor well developed (Fig. 33 in Watts 2011, Ruta 2020). Larvae not known. Included species. Daploeuros lamingtonensis Watts, 2011; D. reichertae Ruta, 2020; D. spencei (Armstrong, 1953); D. hadrostiktos Watts, 2011.Published as part of Watts, C. H. S., Bradford, T. M. & Cooper, S. J. B., 2021, A new genus, Perplexacara, and new generic placements of species of Australian marsh beetles (Coleoptera: Scirtidae) based on morphology and molecular genetic data, pp. 539-548 in Zootaxa 4927 (4) on page 542, DOI: 10.11646/zootaxa.4927.4.4, http://zenodo.org/record/454310

    Dasyscyphon Watts 2011

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    Dasyscyphon Watts, 2011 Diagnosis. Length 3–5mm. Legs stout. Eyes small, head recumbent, distance from subgenal ridge to bottom of eye a little more than diameter of eye, subantennal groove deep, with supraantennal ridge separating groove from eye, antenna without enlarged scape, antennomeres 2 and 3 not reduced; labial palpi straight (sensu Watts & Zwick (2019)) or nearly so (in Dasyscyphon tasmanicus); mandible with one strong tooth, molar without small spines; pronotum transverse, anterolateral angles weakly projecting forward; elytral punctures much larger than those on pronotum; pronotal process broad at apex, corresponding notch in mesoventrite well marked; mesoventral process about twice as wide as long; mesepisternum rugose/punctate. Penis stout, simple; trigonium finger-like, as long as parameroids; tegmen without styli (Figs 63, 64 in Watts 2011). Female winged, ventrite 4 without transverse row of long setae; gonocoxites thin, moderately sclerotised, gonostyli thin, very short, apical; prehensor well developed (Figs 43, 44 in Watts (2011). Larvae not known. Included species. Dasyscyphon hadrostiktos Watts; D. victoriaensis Watts.Published as part of Watts, C. H. S., Bradford, T. M. & Cooper, S. J. B., 2021, A new genus, Perplexacara, and new generic placements of species of Australian marsh beetles (Coleoptera: Scirtidae) based on morphology and molecular genetic data, pp. 539-548 in Zootaxa 4927 (4) on page 542, DOI: 10.11646/zootaxa.4927.4.4, http://zenodo.org/record/454310

    Watts, W B, WX4597

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/424485Surname: WATTS. Given Name(s) or Initials: W B. Military Service Number or Last Known Location: WX4597. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 4282.252348 Item: [2016.0049.56746] "Watts, W B, WX4597

    Archived data for Watts et al. 2019 Anim Mig

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    The document, "Watts et al 2019_AnimMig_Dataset.csv," contains the data from pine siskins (Spinus pinus) used in the paper: Watts, H. E., Rittenhouse, J. L., Sewall, K. B. & Bowers, J. M. 2019. Migratory state is not associated with differences in neural glucocorticoid or mineralocorticoid receptor expression in pine siskins. Animal Migration 6: 19–27

    Chameloscyphon Watts 2011

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    Chameloscyphon Watts, 2011 Diagnosis. Length 3–4mm; elongate; legs stout; head recumbent; eyes small, distance from subgenal ridge to bottom of eye a little more than diameter of eye, subgenal ridge without buttonhole; antenna without enlarged scape, antennomeres 2 & 3 not reduced; labial palpi straight (sensu Watts & Zwick (2019)); mandible with one strong tooth, molar without small spines; pronotum transverse, anterolateral angles rounded; pronotal process broad at apex, corresponding notch in mesoventrite well marked; mesoventral process about twice as wide as long; mesepisternum smooth. Penis short; trigonium short, broad, anterior angles each with a short hook; tegmen without styli (Fig. 65 in Watts 2011). Female micropterous, with disc of pronotum deeply excavated each side of midline, excavation open behind; ventrite 4 without row of modified setae; gonocoxites strongly sclerotised, short, shovel-like; gonostyli minute, subapical; prehensor well developed (Fig. 32 in Watts 2011). Larvae not known. Included species. Chameloscyphon huonensis Watts.Published as part of Watts, C. H. S., Bradford, T. M. & Cooper, S. J. B., 2021, A new genus, Perplexacara, and new generic placements of species of Australian marsh beetles (Coleoptera: Scirtidae) based on morphology and molecular genetic data, pp. 539-548 in Zootaxa 4927 (4) on page 542, DOI: 10.11646/zootaxa.4927.4.4, http://zenodo.org/record/454310

    Antiporus kalbarriensis Hendrich & Watts, 2010, sp.n.

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    <i>Antiporus kalbarriensis</i> sp.n. <p>Figs 2, 4, 5, 6, 7, 8</p> <p> <b>Type locality</b>. Western Australia, 24 km N Binnu [27°33´S 114°25´E], Murchison River, backwater pool.</p> <p> <b>Type material</b>. <b>Holotype</b>: Male: “WA Murchison River 24 k N Binnu 18/5/01 C.H.S. Watts”, “ HOLOTYPE <i>Antiporus kalbarriensis</i> <b>sp.n.</b> Hendrich & Watts des. 2009” [red label, printed] (WAM). <b>Paratypes</b>: 2 males and 2 females; same locality data as holotype and “ PARATYPE <i>Antiporus kalbarriensis</i> sp.n. Hendrich & Watts des. 2009” [red label, printed] (SAMA, CLH); 1 female: “ DNA M. Balke 2704” [green label, printed], “ AUSTRALIA, WA, Batavia Coast, Kalbarri N.P., Ross Graham Lookout, 5.9.2002, 27°33´S 114°25´E, Hendrich leg./Loc. 19/183”, “ PARATYPE <i>Antiporus kalbarriensis</i> sp.n. Hendrich & Watts des. 2009” [red label, printed] (CLH).</p> <p> <b>Etymology</b>. Named after the Kalbarri National Park where part of the type material was collected.</p> <p> <b>Description</b>. Measurements. TL = 3.6–3.8 mm (holotype 3.8 mm); TL-H = 3.3–3.5mm (holotype 3.5 mm); MW = 1.95–2.05 mm (holotype 2.0 mm).</p> <p> <b>Colour</b>. Upper side yellowish-brown; portions of elytron and sutural lines a bit darker, sutural lines broadly bordered with broad pale strip, apical portions lighter (Fig. 2). Venter yellowish, including pronotum, epipleuron, metaventrite, metacoxal plate, prosternal process, legs and abdominal sternites. All antennomeres completely pale yellowish.</p> <p> <b>Sculpture</b>. Dorsal surface strongly, densely and evenly punctured throughout; those on head weaker and sparser, a little smaller than eye facet. Pronotum and elytron with narrow but well marked lateral beading. Microreticulation on head and pronotum fine, moderately impressed, on elytron very fine and almost unvisible. Ventral surface; punctures very dense, microreticulation similar to that on elytron. Prosternal process narrowly lanceolate, rounded tip, almost keeled in cross section, slightly narrowed between procoxae. Metacoxal lines raised, moderately separated, subparallel in posterior half, diverging to about twice their narrowest width in anterior half.</p> <p> <b>Male</b>. Protarsi moderately expanded, robust; single proclaw thickened, strongly bent near base, continously narrowing to sharp point at apex, with slightly curved large tooth at base (Fig. 5). Mesotibia robust, broadly but weakly indented on inner side in middle. Seta tufts on mesotrochanters somewhat thicker than on female. Median lobe of aedeagus in lateral view rather thin, elongated, in ventral view symmetric tapering towards tip (Fig. 4).</p> <p> <b>Female</b>. Pro- and mesotarsi narrower than in males, not expanded. Proclaws simple. Mesotibia narrow.</p> <p> <b>Affinities</b>. The new species appears closest to <i>A. bakewellii</i>, <i>A. jenniferae</i> and <i>A. simplex</i>. From <i>A. bakewellii</i> (TL = 3.1–3.45 mm) (Figs 1, 3) it differs by its larger size, less marked and more diffuse elytral colour pattern, the more parallel sided and elongated form of the median lobe, and the robust and well developed spine at the base of the claw on the male protarsi (compare Watts 1978: 65 and Watts 1997: 39). From the smaller <i>A. jenniferae</i> (TL = 3.4–3.6 mm) it can be distinguished by its yellowish tarsi (totally black in <i>A. jenniferae</i>), and the form of the aedeagus which is slender and tapering to the tip in <i>A. kalbarriensis</i> <b>sp.n.</b>. From the slightly smaller (TL = 3.5–3.7 mm) <i>A. simplex</i> Watts, 1978 from Queensland, <i>A. kalbarriensis</i> <b>sp.n.</b> can be well separated by its more elongated median lobe of aedeagus, which is more tapered at the tip, and its larger and more robust spine at the base of the claw on the male protarsi as well as a stronger dorsal colour pattern which is virtually absent in <i>A. simplex</i> (compare Watts 1978: 65 and Watts 1997: 39). In the key given in Watts 1997 the species will run to couplet 7.</p> <p> <b>Distribution</b>. Western Australia, Murchison District. Only known from two localities along the Murchison River (Fig. 6).</p> <p> <b>Habitat</b>. At both localities the specimens were collected from half-shaded (sedges at the banks), shallow, sandy backwater pools, with dense mats of Chara and other floating vegetation, beside the Murchison River (Fig. 7). The bottom consisted of fine sand with a thin layer of mud and plant debris (Fig. 8). Apart from the <i>Antiporus</i>, the water beetle coenosis included the following species: Murchison River north of Binnu: Haliplidae: <i>Haliplus</i> <b>sp.n.</b> (Watts & MacRae 2010); Dytiscidae: <i>Hyphydrus elegans</i> (Montrouzier, 1860), <i>H.</i></p> <p> <i>lyratus</i> Swartz, 1808; Hydrophilidae: <i>Berosus dallasi</i> Watts, 1987, <i>Enochrus elongatus</i> (W.J. Macleay, 1873), <i>E. maculiceps</i> (W.J. Macleay, 1873). Ross Graham Lookout: Dytiscidae: <i>Allodessus bistrigatus</i> (Clark, 1862), <i>Antiporus gilberti</i> (Clark, 1862), <i>Eretes australis</i> (Erichson, 1842), <i>H. elegans</i>, <i>Limbodessus inornatus</i> (Sharp, 1882), <i>Megaporus howittii</i> (Clark, 1862), <i>Necterosoma penicillatum</i> (Clark, 1862) <i>N. regulare</i> Sharp, 1882, <i>Rhantus suturalis</i> (W.S. Macleay, 1825); Hydrophilidae: <i>Enochrus eyrensis</i> (Blackburn, 1894), <i>Limnoxenus zealandicus</i> (Broun, 1880), <i>Paracymus pygmaeus</i> (W.J. Macleay, 1871).</p>Published as part of <i>Hendrich, Lars & Watts, Chris H. S., 2010, An endemic predaceous water beetle from the Murchison River in Western Australia — Antiporus kalbarriensis sp. n. (Coleoptera: Dytiscidae, Hydroporinae, Hydroporini), pp. 35-42 in Zootaxa 2338</i> on pages 38-39, DOI: <a href="http://zenodo.org/record/193247">10.5281/zenodo.193247</a&gt

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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
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