86 research outputs found
Cladal Divergence in Fungal Ophiognomonia (Gnomoniaceae, Diaporthales) Shows Evidence of Climatic Niche Vicariance
No full textWe used the globally widespread genus Ophiognomonia as a model system to investigate climatic niche patterns in fungi, characterizing the climatic profiles of 28 species with seven temperature and seven precipitation variables. Using a novel version of Spatial Evolutionary and Ecological Vicariance Analysis (SEEVA), designed to deal with continuous and correlated variables, we examined well-sampled phyletic splits of a multi-gene phylogeny. We evaluated the degree to which phyletic divergence has been associated with climatic niche divergence between sister lineages, permitting elucidation of climatic associations in evolutionary context. From the 14 inter-correlated climatic variables, we extracted four principal axes, accounting for 93.2% of the climatic variation, with axes broadly labeled as: polarity, tropicality, winter mildness, and aridity. We also analyzed the two single variables maximum monthly temperature and precipitation. We detected climatic associations that were compatible with both niche-conservatism and niche-divergence within the phylogeny, and different cladistic bifurcations associated with different climatic splits. As might have been anticipated, geographic separation (or lack thereof) of phylogenetic splits was correlated with climate niche divergence (or conservation). This elaborated SEEVA method provides a visual and statistically solid basis for characterizing climatic niche divergence that should prove useful for elucidation of many other taxonomic groups.Peer reviewe
Personal BioBlitz: A New Way to Encourage Biodiversity Discovery and Knowledge in K-99 Education and Outreach
No full textBroad and detailed knowledge about common species in everyday life has decreased among the public. Even biology researchers may be largely unaware of our everyday biodiversity. To counter such 'species blindness' and create long-term excitement and learning about the biodiversity we see every day, we arranged 76-day BioBlitzes at Rutgers University (New Jersey, USA) in 2014 and 2015 where participants identified and listed all species they discovered. The result was 7270/11748 observations from 30/78 participants and 7/13 countries, including 3458/3057 unique taxa, 91%/99.9% identified to species and 80%/54% listed only by one person (2014/2015). Observations of organismal groups did not strongly correspond to number of estimated species worldwide, but appeared to be related to perceived charisma, body size, and organism mobility. Participants reported increased ability to 'see' species and to identify new groups, learning new tools of species identification and strongly increasing their biodiversity knowledge and eagerness to learn more.Peer reviewe
Serologic Analysis of Returned Travelers with Fever, Sweden
No full textWe studied 1,432 febrile travelers from Sweden who had returned from malaria-endemic areas during March 2005-March 2008. In 383 patients, paired serum samples were blindly analyzed for influenza and 7 other agents. For 21% of 115 patients with fever of unknown origin, serologic analysis showed that influenza was the major cause.Original Publication: Helena H Askling, Birgitta Lesko, Sirkka Vene, Angerd Berndtson, Per Bjorkman, Jonas Blackberg, Ulf Bronner, Per Follin, Urban Hellgren, Maria Palmerus, Karl Ekdahl, Anders Tegnell and Johan Struwe, Serologic Analysis of Returned Travelers with Fever, Sweden, 2009, EMERGING INFECTIOUS DISEASES, (15), 11, 1805-1808. http://dx.doi.org/10.3201/eid1511.091157 Copyright: National Center for Infectious Diseases http://www.cdc.gov/ncidod/eid/index.htm</p
Species Diversity in the Asphalt Jungle: Floristic Composition and Structure of Parking Lots
No full textSupplemental tables 1 and 2.Suppl. table 1, Survey data for parking lots at Rutgers University -- Suppl. table 2, Names, area size, and number of angiosperm species found per parking lot at Rutgers University, New Brunswick, NJ, USA.Supplemental data for an article prepared for submission to the journal Urban Naturalist
Asymptotic limits of a self-dual Ginzburg-Landau functional in bounded domains
No full textIn the author's joint paper [HJS] with Jest and Struwe, we discuss asymtotic limits of a self-dual Ginzburg-Landau functional involving a section of a line bundle over a closed Riemann surface and a connection on this bundle. In this paper, the author generalizes the above results [HJS] to the case of bounded domains
Phylogeny of Helieae (Gentianaceae): resolving taxonomic chaos in a Neotropical clade
No full textDNA sequence alignments and coded indels.Suppl. 1, DNA sequence alignment for matK (partial matK gene) -- Suppl. 2, DNA sequence alignment for 5S-NTS (5S ribosomal RNA non-transcribed spacer) -- Suppl. 3, Coded indels for the 5S-NTS alignment -- Suppl. 4, DNA sequence alignment for ITS (internal transcribed spacer 1; 5.8S ribosomal RNA gene; internal transcribed spacer 2) -- Suppl. 5, Coded indels for the ITS alignment.Supplemental data for an article accepted for publication in: Molecular Phylogenetics and Evolution (2016)
Phylogeny of Helieae (Gentianaceae): resolving taxonomic chaos in a Neotropical clade, Supplemental data
No full textDNA sequence alignments and coded indels
Personal BioBlitz: A New Way to Encourage Biodiversity Discovery and Knowledge in K-99 Education and Outreach
No full textBroad and detailed knowledge about common species in everyday life has decreased among the public. Even biology researchers may be largely unaware of our everyday biodiversity. To counter such 'species blindness' and create long-term excitement and learning about the biodiversity we see every day, we arranged 76-day BioBlitzes at Rutgers University (New Jersey, USA) in 2014 and 2015 where participants discovered, identified, and listed all species they encountered. The result was 7270/11748 observations from 30/78 participants and 7/13 countries, including 3458/3057 unique taxa, 91%/99.9% identified to species and 80%/54% listed only by one person (2014/2015). Observations of organismal groups did not strongly correspond to number of estimated species worldwide, but appeared to be related to perceived charisma, body size, and organism mobility. Participants reported increased ability to 'see' species and to identify new groups, learning new tools of species identification and strongly increasing their biodiversity knowledge and eagerness to learn more.Supplemental data for an article accepted for publication in: BioScience (2015) doi: 10.1093/biosci/biv140
Phyletic Radiation in Fungal Ophiognomonia (Gnomoniaceae, Diaporthales) Shows Evidence of Climatic Niche Vicariance, supplemental data
No full textSupplemental data for a manuscript prepared for publication in Biological Journal of Linnean Society
Concentration phenomena for a fourth-order equation with exponential growth: The radial case
No full textAbstractWe let Ω be a smooth bounded domain of R4 and a sequence of functions (Vk)k∈N∈C0(Ω) such that limk→+∞Vk=1 in Cloc0(Ω). We consider a sequence of functions (uk)k∈N∈C4(Ω) such that Δ2uk=Vke4uk in Ω for all k∈N. We address in this paper the question of the asymptotic behavior of the (uk)'s when k→+∞. The corresponding problem in dimension 2 was considered by Brézis and Merle, and Li and Shafrir (among others), where a blow-up phenomenon was described and where a quantization of this blow-up was proved. Surprisingly, as shown by Adimurthi, Struwe and the author in [Adimurthi, F. Robert and M. Struwe, Concentration phenomena for Liouville equations in dimension four, J. Eur. Math. Soc., in press, available on http://www-math.unice.fr/~frobert], a similar quantization phenomenon does not hold for this fourth-order problem. Assuming that the uk's are radially symmetrical, we push further the analysis of the mentioned work. We prove that there are exactly three types of blow-up and we describe each type in a very detailed way
- …
