1,721,070 research outputs found
Yannic_data_DRYAD_RSPB-2014-0502
No full textIntroductory information: Caribou (Rangifer tarandus) capture and genotype data. Please contact either Glenn Yannic (glenn-dot-yannic-at-gmail-dot-com) or Steeve D. Côté (Steeve-dot-Cote-at-bio-dot-ulaval-dot-ca) with any questions of location and genotype data. Identification – lab ID (ID number used in lab), capture ID (ID number used in field), sex (male or female). Capture Location - latitude (Y) and longitude (X) coordinates (datum = WGS84) of capture. Loci - names of microsatellite loci analyzed - 16 in total, two alleles provided per loci in adjacent columns, missing data given 000
Figure 4 in Multiple refugia and barriers explain the phylogeography of the Valais shrew, Sorex antinorii (Mammalia: Soricomorpha)
No full textFigure 4. Median-joining network of the different mitochondrial DNA haplotypes of Sorex antinorii. The size of the symbols is proportional to the number of individuals sharing each haplotype and the lengths of the branches are proportional to the number of mutational steps between haplotypes. Black stars indicate haplotypes putatively attributed to Sorex arunchi. Geographical regions refer to the range definition of Fig. 1.Published as part of YANNIC, GLENN, PELLISSIER, LOÏC, DUBEY, SYLVAIN, VEGA, RODRIGO, BASSET, PATRICK, MAZZOTTI, STEFANO, PECCHIOLI, ELENA, VERNESI, CRISTIANO, HAUFFE, HEIDI C., SEARLE, JEREMY B. & HAUSSER, JACQUES, 2012, Multiple refugia and barriers explain the phylogeography of the Valais shrew, Sorex antinorii (Mammalia: Soricomorpha), pp. 864-880 in Biological Journal of the Linnean Society 105 (4) on page 873, DOI: 10.1111/j.1095-8312.2011.01824.x, http://zenodo.org/record/784835
Figure 1 in Multiple refugia and barriers explain the phylogeography of the Valais shrew, Sorex antinorii (Mammalia: Soricomorpha)
No full textFigure 1. Map of the study area illustrating sampling localities of Sorex antinorii (white circles; 1 N <4) and major geographical features. Black circles indicate sampling sites (N 4) included in the landscape genetic analyses and numbers correspond with the Pop ID listed in Table 1. Black diamonds indicate localities where Sorex arunchi specimens were found. Broken black lines refer to geographical regions arbitrary defined for discussion (W, west; NW, north-west; C, central; E, east).Published as part of YANNIC, GLENN, PELLISSIER, LOÏC, DUBEY, SYLVAIN, VEGA, RODRIGO, BASSET, PATRICK, MAZZOTTI, STEFANO, PECCHIOLI, ELENA, VERNESI, CRISTIANO, HAUFFE, HEIDI C., SEARLE, JEREMY B. & HAUSSER, JACQUES, 2012, Multiple refugia and barriers explain the phylogeography of the Valais shrew, Sorex antinorii (Mammalia: Soricomorpha), pp. 864-880 in Biological Journal of the Linnean Society 105 (4) on page 866, DOI: 10.1111/j.1095-8312.2011.01824.x, http://zenodo.org/record/784835
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
Associations entre la diversité génétique et la performance individuelle chez le caribou migrateur (Rangifer tarandus) du nord du Québec et du Labrador
No full textLes liens entre la diversité génétique et la performance individuelle peuvent révéler l’existence de dépression de consanguinité ou de sélection naturelle à certains loci fonctionnels dans une population. Dans cette étude, nous avons étudié l’association de la diversité génétique avec des traits de performance (survie annuelle et masse corporelle) chez le caribou migrateur appartenant à deux populations en déclin au Québec et au Labrador. Nous avons évalué la diversité génétique à deux échelles génétiques: i) à l’échelle du génome (22073 polymorphismes nucléotidiques simples) et ii) chez un locus (DRB) du complexe majeur d’histocompatibilité (CMH), un gène d’immunité. Pendant les 20 années de notre période d’échantillonnage, la diversité génétique globale et celle du locus CMH-DRB sont restées stables. La diversité génétique globale n’était pas associée aux traits de performance, mais la diversité fonctionnelle de CMH-DRB était associée négativement à la survie annuelle des adultes. Par ailleurs, nous avons détecté une faible différentiation génétique entre les deux troupeaux qui étaient considérés jusqu’ici comme une seule population d’un point de vue génétique. Nos résultats suggèrent que le déclin rapide des deux troupeaux de caribous n’a pas entraîné de perte de diversité génétique, même si une augmentation de la dérive génétique pourrait être à l’origine de la structure génétique observée. Ils supportent aussi l’hypothèse qu’il n’y aurait pas de dépression de consanguinité dans les troupeaux, malgré leur déclin démographique marqué. L’association négative de la diversité au CMH avec la survie que nous avons détectée va à l’encontre de la majorité des études publiées sur ce sujet, qui montrent en général une association positive. Nos résultats suggèrent que la diversité au CMH n’est peut-être pas avantageuse dans des écosystèmes où la diversité de pathogènes est faible ou dans lesquels l’abondance de pathogènes change rapidement en réponse aux changements climatiques.Associations between genetic diversity and individual performance may indicate inbreeding depression or selective pressures applied on some functional loci in a population. In this study, we looked at the association of genetic diversity with performance traits (annual survival and body mass) in migratory caribou of two declining herds in Québec and Labrador. We assessed genetic diversity at two genetic scales: i) genome-wide diversity estimated with 22,073 single nucleotide polymorphisms and ii) diversity of one locus (DRB) of the major histocompatibility complex (MHC). During the 20-year sampling period, genome-wide and MHC-DRB diversity remained stable. Genome-wide diversity was not associated with performance, but MHC-DRB functional diversity showed a negative association with annual survival of adults. Furthermore, we found a slight differentiation of the two herds that were considered until now as a single population from a genetic point of view. Our results suggest that the rapid decline of both herds did not lead to a loss of genetic diversity, even though an increase in genetic drift could be responsible for the genetic structure we observed. They also suggest that the herds do not suffer from inbreeding depression despite their marked decline. The negative association of MHC-DRB diversity with survival is opposite to the majority of studies published on this matter that usually show a positive association. Our results suggest that MHC diversity might not be beneficial in ecosystems with low pathogen diversity or in which pathogen abundance changes quickly in response to climate change
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
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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