1,721,098 research outputs found
Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
No full textSchöning, Caspar, Gotwald, William H., Kronauer, Daniel J. C., Vilhelmsen, Lars (2008): Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology. Zootaxa 1749: 39-52, DOI: 10.5281/zenodo.27422
FIGURE 9 in Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology
No full textFIGURE 9. Dorsal view of the petiole of a large D. gribodoi worker (HW 2.85 mm) from Taï, Ivory Coast.Published as part of Schöning, Caspar, Gotwald, William H., Kronauer, Daniel J. C. & Vilhelmsen, Lars, 2008, Taxonomy of the African army ant Dorylus gribodoi Emery, 1892 (Hymenoptera, Formicidae) — new insights from DNA sequence data and morphology, pp. 39-52 in Zootaxa 1749 on page 47, DOI: 10.5281/zenodo.27422
Taxonomic Review and Natural History Notes of the Army Ant-Associated Beetle Genus Ecclisister Reichensperger (Coleoptera: Histeridae: Haeteriinae)
No full textTishechkin, Alexey K., Kronauer, Daniel J. C., Beeren, Christoph Von (2017): Taxonomic Review and Natural History Notes of the Army Ant-Associated Beetle Genus Ecclisister Reichensperger (Coleoptera: Histeridae: Haeteriinae). The Coleopterists Bulletin 71 (2): 279-288, DOI: 10.1649/0010-065X-71.2.279, URL: http://dx.doi.org/10.1649/0010-065x-71.2.27
Recommended from our members
Intergenerational transmission of sociality: the role of parents in shaping social behavior in monogamous and non-monogamous species
No full textSocial bonds are necessary for many mammals to survive and reproduce successfully. These bonds (i.e. pair-bonds, friendships, filial bonds) are characterized by different periods of development, longevity and strength. Socially monogamous species display certain behaviors not seen in many other mammals, such as adult pair-bonding and male parenting. In our studies of prairie voles (Microtus ochrogaster) and titi monkeys (Callicebus cupreus), we have examined the neurohormonal basis of these bonds. Here, we discuss the evidence from voles that aspects of adolescent and adult social behavior are shaped by early experience, including changes to sensory systems and connections, neuropeptide systems such as oxytocin and vasopressin, and alterations in stress responses. We will compare this with what is known about these processes during development and adulthood in other mammalian species, both monogamous and non-monogamous, and how our current knowledge in voles can be used to understand the development of and variation in social bonds. Humans are endlessly fascinated by the variety of social relationships and family types displayed by animal species, including our own. Social relationships can be characterized by directionality (either uni- or bi-directional), longevity, developmental epoch (infant, juvenile or adult) and strength. Research on the neurobiology of social bonds in animals has focused primarily on 'socially monogamous' species, because of their long-term, strong adult affiliative bonds. In this Review, we attempt to understand how the ability and propensity to form these bonds (or lack thereof), as well as the display of social behaviors more generally, are transmitted both genomically and non-genomically via variation in parenting in monogamous and non-monogamous species
Fig. 1. Ecclisister species. E in Taxonomic Review and Natural History Notes of the Army Ant-Associated Beetle Genus Ecclisister Reichensperger (Coleoptera: Histeridae: Haeteriinae)
No full textFig. 1. Ecclisister species. E. bickhardti lectotype: a) dorsal view, b) lateral view, c) ventral view, d) frontal head, e) aedeagus, dorsal view, f) aedeagus, lateral view; E. costaericae lectotype: g) dorsal view, h) lateral view, i) ventral view, j) frontal head, k) aedeagus, dorsal view, l) aedeagus, lateral view. Scale bars: a–c, g–i = 1 mm; d and j = 0.2 mm. Dorsal and lateral views of aedeagi are at the same scale.Published as part of Tishechkin, Alexey K., Kronauer, Daniel J. C. & Beeren, Christoph Von, 2017, Taxonomic Review and Natural History Notes of the Army Ant-Associated Beetle Genus Ecclisister Reichensperger (Coleoptera: Histeridae: Haeteriinae), pp. 279-288 in The Coleopterists Bulletin 71 (2) on page 283, DOI: 10.1649/0010-065X-71.2.279, http://zenodo.org/record/546067
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
Ecclisister bickhardti
No full text<i>Ecclisister bickhardti</i> (Reichensperger, 1923) <p> <i>Cyclechinus bickhardti</i> Reichensperger 1923: 248.</p> <p> <i>Ecclisister bickhardti</i>: Reichensperger 1935: 203–204; Mazur 1984: 304, 1997: 159, 2011: 116; Helava <i>et al.</i> 1985: 324.</p> <p> <b>Zoobank Identifier.</b> urn:lsid:zoobank.org:act: 9F196B10-F503-405E-B28D-C1AB32A23739.</p> <p> <b>Type Material Examined.</b> <b>Lectotype</b> (designated by Dégallier (1998), Fig. 1a–f). A male mounted on a point along with a small <i>E. burchellii</i> worker and labeled “St. Catarina Blumenau / <i>Eciton burchelli</i> / TYPUS / <i>Cyclechinus bickhardti</i> Reichensp. n. sp. / Coll. Reichensperger ” (FIMAK). <b>Paralectotypes</b> (designated by Dégallier (1998)). Two females mounted and labeled as lectotype but with “Cotype” instead of “ TYPUS ” and our “ Paralectotype ” instead of “ Lectotype ” labels (FIMAK).</p> <p> <b>Additional Material Examined</b>. <b>BRAZIL:</b> Santa Catarina. One specimen from same locality as of the type series members, 8.vi.[year unknown], with <i>E. burchellii</i> (NMMW).</p>Published as part of <i>Tishechkin, Alexey K., Kronauer, Daniel J. C. & Beeren, Christoph Von, 2017, Taxonomic Review and Natural History Notes of the Army Ant-Associated Beetle Genus Ecclisister Reichensperger (Coleoptera: Histeridae: Haeteriinae), pp. 279-288 in The Coleopterists Bulletin 71 (2)</i> on page 281, DOI: 10.1649/0010-065X-71.2.279, <a href="http://zenodo.org/record/5460674">http://zenodo.org/record/5460674</a>
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
- …
