101,918 research outputs found
Endemic harvestmen and spiders of Austria (Arachnida: Opiliones, Araneae)
No full textA comprehensive overview of plant, fungus and animal species of Austria revealed a total of 748 endemic and subendemic species, including, 11 harvestman and 46 spider species. Altogether two endemic harvestmen (Nemastoma bidentatum relictum, Nemastoma schuelleri) and 8 endemic spiders (Abacoproeces molestus, Collinsia (caliginosa) nemenziana, Mughiphantes severus, Mughiphantes styriacus, Pelecopsis alpica, Scotophaeus nanus, Troglohyphantes novicordis, Troglohyphantes tauriscus), beside 9 subendemic harvestman and 38 subendemic spider species have been recorded from Austria. Hot-spots of endemism in the Eastern Alps are the north-eastern (Ennstaler Alps) and southern Calcareous Alps (Karawanken, Karnische Alps) and the Central Alps (Hohe Tauern, Gurktaler Alps, Ötztaler and Stubaier Alps). Most of the endemic arachnid species occur from the nival down to the montane zone. Important habitats are rocky areas, caves and woodlands. High absolute numbers and percentages of endemics can be found within the harvestman families Cladonychiidae, Ischyropsalididae and Nemastomatidae and in the spider genera Lepthyphantes s. l. and Troglohyphantes. The conservation status of these highly endangered taxa – 85 % of the spider species and 100 % of the harvestman taxa are endangered in Austria – is poor
Leiobunum subalpinum Komposch 1998
No full text<i>Leiobunum subalpinum</i> Komposch, 1998 <p>Fig. 2</p> <p> <i>Leibunum</i> <i>subalpinum</i> Komposch, 1998: 20.</p> <p> <i>Leiobunum rupestre</i> Gruber, 1966: 46 (partim).</p> <p> <i>Nelima religiosa</i> Roewer, 1910: 912 (in part: series from Tirol, Gross-Glockner).</p> <p> <i>Nelima religiosa</i> Thaler, 1966: 79.</p> <p> <i>Leiobunum</i> sp. – Komposch 1997: 83.</p> <p> <i>Leibunum subalpinum</i> – Komposch 2009 b: 487.</p> Taxonomic history <p> Rather uncomplicated. Because of its extreme similarity to <i>L. rupestre</i>, including genital morphology, this species went unidentified in many former high-altitude reports on <i>L. rupestre</i> until its formal description in 1998. <i>Leiobunum rupestre</i> and <i>L. subalpinum</i> occur in sympatry and local syntopy, but coxal markings allow easy field identification, so no further misindications were recorded.</p> Diagnosis <p> A medium-sized <i>Leiobunum</i> species very similar to <i>L. rupestre</i>, except for black coxal markings in both sexes and white markings on Ceph including a white area in front of the tuber oculorum in males. Coxa IV without granules. For further details refer to Komposch (1998).</p> Description <p>BODY. See Diagnosis.</p> <p> DORSAL PATTERN. Extremely similar to <i>L. rupestre</i>.</p> <p> PEDIPALPS. Very similar to <i>L. rupestre</i> except for a medio-basal swelling on Ta in males.</p> <p> GENITAL MORPHOLOGY. Very similar to <i>L. rupestre</i>. The wing-free basal part of truncus shorter than in <i>L. rupestre.</i></p> <p> <b>Distribution</b> (Fig. 2)</p> <p> Restricted to the eastern Austrian Alps, mainly on the southern macroslope in the federal states of Salzburg, Steiermark and Kärnten (Komposch 1998; Komposch & Gruber 2004; Komposch 2009 b) extending into adjacent Slovenia (Novak <i>et al</i>. 2006). Type locality is Gössnitztal in the National Park Hohe Tauern in Kärnten.</p> Ecology <p> This a mountainous species of the eastern Alps. Its distributional range extends from about 1500 m to 2100 m a.s.l. with rare outliers down to 430 m in moist and cool ravines and up to 2200 m. Vertical rockfaces mostly of siliceous origin are preferred (Komposch 2009 a, b; Komposch & Gruber 1999). There is a zone of sympatric and sometimes even syntopic occurrence together with <i>L. rupestre</i> between 500 m and 1400 m. Strongholds of <i>L. rupestre</i> in that area extend from 500 m to 1000 m with rare occurrences below (down to 200 m) and above (up to 1400 m) (Komposch 1998).</p>Published as part of <i>Martens, Jochen & Schönhofer, Axel L., 2016, The Leiobunum rupestre species group: resolving the taxonomy of four widespread European taxa (Opiliones: Sclerosomatidae), pp. 1-35 in European Journal of Taxonomy 216 (216)</i> on pages 9-10, DOI: 10.5852/ejt.2016.216, <a href="http://zenodo.org/record/3840149">http://zenodo.org/record/3840149</a>
Figure 7 in Comparison of natural histories and karyotypes of two closely related ant-eating spiders, Zodarion hamatum and Z. italicum (Araneae, Zodariidae)
No full textFigure 7. Behaviour of sex chromosome during spermatogonial mitosis and meiosis. (A, F) Zodarion italicum; (B– E, G–I) Z. hamatum. (A) Early spermatogonial prophase; (B) premeiotic interphase (two prominent heteropycnotic bodies represent segments of chromosome X); (C) pachytene (note that sex chromosome does not exhibit heteropycnosis); (D) late pachytene; (E) diplotene (*ring bivalent with two chiasmata); (F) metaphase I (*bivalent exhibiting precocious division); (G) anaphase I; (H) prometaphase II; (I) anaphase II. Arrow identifies sex chromosome. Scale bars: 10 mm.Published as part of Pekár, Stano, Král, Jiří, Malten, Andreas & Komposch, Christian, 2005, Comparison of natural histories and karyotypes of two closely related ant-eating spiders, Zodarion hamatum and Z. italicum (Araneae, Zodariidae), pp. 1583-1596 in Journal of Natural History 39 (19) on page 1592, DOI: 10.1080/00222930400016762, http://zenodo.org/record/521488
Invertebrate Fauna of Undercooled Scree Slopes in the Eastern Alps – Characteristics, significance, threats and protection in times of climate change
No full textDue to the formation of basal ice during the winter, the undercooled scree slopes emit cold streams of air during the warm season. Often condensation-water mires can be found here. The study investigated the invertebrate fauna of the interstitial with pitfall traps (1470 „trap months“) at five talus sites in the eastern Alps of Styria (Austria). Results revealed the occurrence of a highly independent cold-adapted fauna with rare and endangered arthropods (e. g. 13 first records of spiders in the Styrian province), alpine species far below their known vertical distribution, species with arcto-alpine and boreo-montane distribution ranges and a high percentage of endemic species. In view of several species having a clear-cut niche separation along the temperature gradient, the current climate warming poses a serious threat to these species communities. Furthermore some endangering threats have been identified which can be mitigated by protective measures on a local scale
Invertebrate Fauna of Undercooled Scree Slopes in the Eastern Alps – Characteristics, significance, threats and protection in times of climate change
No full textDue to the formation of basal ice during the winter, the undercooled scree slopes emit cold streams of air during the warm season. Often condensation-water mires can be found here. The study investigated the invertebrate fauna of the interstitial with pitfall traps (1470 „trap months“) at five talus sites in the eastern Alps of Styria (Austria). Results revealed the occurrence of a highly independent cold-adapted fauna with rare and endangered arthropods (e. g. 13 first records of spiders in the Styrian province), alpine species far below their known vertical distribution, species with arcto-alpine and boreo-montane distribution ranges and a high percentage of endemic species. In view of several species having a clear-cut niche separation along the temperature gradient, the current climate warming poses a serious threat to these species communities. Furthermore some endangering threats have been identified which can be mitigated by protective measures on a local scale
Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung
No full textDieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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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3346: Samuel G. Freedman, author, 2013
No full textPhotograph of author Samuel G. Freedman, at NT Daily Slash meeting in the Mayborn School of Journalism at UNT
The Right to Strike under the United States Constitution: Theory, Practice, and Possible Implications for Canada
No full textAnswering critics of the Canadian Supreme Court's judgment in B.C. Health, the author argues that the Court laid the foundation for a principled and durable doctrine protecting constitutional labour rights, one that goes directly to the heart of the matter — the inequality of workers’ power in the employment relation. In the author’s view, two paths could lead from B.C. Health to the recognition of Charter protec- tion for a right to strike: one that treats the right as an accessory to col- lective bargaining, and one that upholds the right directly on the basis of the Charter values of equality and participation. The author supports the latter approach, contending that constitutional rights should be defined in relation to fundamental values, in a way that is not contingent on time-bound or fact-sensitive assessments about the role of strikes within a particular collective bargaining regime. Although a Charter right to strike may involve the courts in difficult choices about when to defer to legislative policy decisions, and courts may lack the institutional capac- ity to deal effectively with labour law issues, the author points out that judges can look to ILO standards for expert guidance. Noting that the U.S. experience in this area might be of considerable use to Canadians, the author concludes by providing an overview of American case law concerning a constitutional right to strike.Peer reviewe
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