3,815 research outputs found
Jonathan Shaw letter to Thomas Rotch, Upper Sandusky 3rd mo 28, 1820
No full textA letter to Thomas Rotch from sub-agent for Indian affairs, Jonathan Shaw, discussing the Treaty of St. Mary's, 1818, attended by Thomas and Charity Rotch as Quaker representatives to insure that Native Americans were fairly treated. 7.75" x 9.8" (19.7 by 24.9 cm
The application of molecular data to the phylogenetic delimitation of species in bryophytes: A note of caution
No full textVanderpoorten, Alain, Shaw, A. Jonathan (2010): The application of molecular data to the phylogenetic delimitation of species in bryophytes: A note of caution. Phytotaxa 9: 229-237, DOI: 10.11646/phytotaxa.9.1.1
<strong>Bryophytes:The closest living relatives of early land plants Title page</strong>
No full textKonrat, Matt Von, Shaw, A. Jonathan, Renzaglia, Karen Sue, Konrat, Matt Von, Shaw, A. Jonathan, Renzaglia, Karen Sue (2010): <strong>Bryophytes:The closest living relatives of early land plants Title page</strong>. Phytotaxa 9 (1): 3-4, DOI: 10.11646/PHYTOTAXA.9.1.1, URL: http://dx.doi.org/10.11646/phytotaxa.9.1.
NewFotoScapes
No full textPhotography has never been a more dominant and embedded part of contemporary culture than it is now. The Internet, digital technology and social media have amplified our ability to connect and build communities, and sharing and communication of images has facilitated an exponential growth in picture capture and digital distribution. NEWFOTOSCAPES seeks to navigate the evolving topography surrounding the image in the twenty-first century; offering a focused eye on the contemporary creative author-curator and image-maker and on the possibilities afforded by an increasingly complex professional landscape. Jonathan Shaw advocates a new way of thinking about photographic production and education in a post-digital era. NEWFOTOSCAPES is a collection of curated texts arising from a series of in-depth conversations with key stakeholders in, and influential commentators on, photography; including Andy Adams (Flakphoto), David Campbell, Charlotte Cotton, Dónall Curtin, Nathaniel Pitt, Mishka Henner, Francis Hodgson, Dewi Lewis, Stephen Mayes and Katrina Sluis. Perspectives and views cover a wide range of topics such as; agencies, appropriation, archives, community, curation, governance, licensing, mobile, networked-image, open education, photobooks, power and value. In the spirit of today’s mobile and connected world NEWFOTOSCAPES will be simultaneously available on the web under a Creative Commons license and versioned in online, eBook and Print formats
NewFotoScapes
No full textPhotography has never been a more dominant and embedded part of contemporary culture than it is now. The Internet, digital technology and social media have amplified our ability to connect and build communities, and sharing and communication of images has facilitated an exponential growth in picture capture and digital distribution. NEWFOTOSCAPES seeks to navigate the evolving topography surrounding the image in the twenty-first century; offering a focused eye on the contemporary creative author-curator and image-maker and on the possibilities afforded by an increasingly complex professional landscape. Jonathan Shaw advocates a new way of thinking about photographic production and education in a post-digital era. NEWFOTOSCAPES is a collection of curated texts arising from a series of in-depth conversations with key stakeholders in, and influential commentators on, photography; including Andy Adams (Flakphoto), David Campbell, Charlotte Cotton, Dónall Curtin, Nathaniel Pitt, Mishka Henner, Francis Hodgson, Dewi Lewis, Stephen Mayes and Katrina Sluis. Perspectives and views cover a wide range of topics such as; agencies, appropriation, archives, community, curation, governance, licensing, mobile, networked-image, open education, photobooks, power and value. In the spirit of today’s mobile and connected world NEWFOTOSCAPES will be simultaneously available on the web under a Creative Commons license and versioned in online, eBook and Print formats
Population genetics and ecology of rare bumblebee species in the UK
No full textThe population genetic structure of three rare and declining bumblebee species, Bombus muscorum, B. humilis, and B. sylvarum was examined using microsatellite markers. We find evidence of significant genetic structuring in both oceanic island populations of B. muscorum and in fragmented mainland populations of B. jumilis and B. Sylvarum. In the former species we find that all populations greater than 10km apart are significantly differentiated from one another suggesting dispersal above this distance is infrequent. Evidence of genetic bottlenecks was found in populations of both B. muscorum and B. humilis. All three species show reduced genetic diversity relative to the common B. pascuorum and fragmented UK populations of B. sylvarum show reduced genetic diversity relative to a continental population. Effective population sizes were found to be low in B. humilis and B. sylvarum, especially so in the latter species. Diploid male production was observed in all three rare species, but was infrequent. We propose that diploid male production is not an appropriate measure of inbreeding depression for social Hymenoptera. Why some bumblebee species have declined in the face of agricultural intensification while others have not is not well understood. Diet breadth of rare species was examined as a possible explanation of this. To some extent all three rare species studied show a narrow diet breadth. We hypothesize that this is because as these species emerge late, they must specialize on plants with higher quality pollen in order to raise the brood more quickly. Following losses of floral diversity, agricultural intensification has than affected these species more greatly.</p
FIGURE 3 in A special issue of Phytotaxa dedicated to Bryophytes: The closest living relatives of early land plants
No full textFIGURE 3. Sphagnum pulchrum (Lindberg 1880: 25) Warnstorf (1900: 42), Alaska (Photo: Blanka Shaw). Sphagnum comprises a speciose clade of mosses that dominates many wetland ecosystems, especially in the boreal zone of the Northern Hemisphere (Shaw et al. 2003). In particular, Sphagnum is an important and conspicuous component in peatlands, which perform a significant global function in regulating the Earth's atmospheric chemistry as well as providing valuable economic commodities (Rochefort 2000). Sphagnum holds an interesting position amongst mosses, with Cox et al. (2004) indicating that Sphagnum and Takakia form a clade sister to all remaining mosses.Published as part of <i>Konrat, Matt Von, Shaw, A. Jonathan & Renzaglia, Karen Sue, 2010, A special issue of Phytotaxa dedicated to Bryophytes: The closest living relatives of early land plants, pp. 5-10 in Phytotaxa 9 (1)</i> on page 8, DOI: 10.11646/phytotaxa.9.1.3, <a href="http://zenodo.org/record/10087086">http://zenodo.org/record/10087086</a>
Narrow species concepts in the Frullania dilatata–appalachiana–eboracensis complex (Porellales, Jungermanniopsida): evidence from nuclear and chloroplast DNA markers
No full textWe investigated the phylogeny of a Holarctic-Asian group of Frullania species, the Frullania dilatata-F. appalachiana F. eboracensis complex, using multiple accessions of morphologically circumscribed taxa and three molecular markers (nrITS region, cp DNA trnL-F and atpB-rbcL regions). Maximum parsimony and likelihood analyses indicated monophyly of morphologically defined taxa. Our phylogenies support a species rather than a subspecies concept within the complex, with four species in North America (F. appalachiana, F. eboracensis, F. parvistipula and F. virginica), and two species in Europe (F. dilatata and F. parvistipula). Accessions of F. dilatata from Southeast Europe and Asia are separated from other European accessions, indicating a former disjunct range of the species
Traduire sous la contrainte: la traduction et la numérisation de la poésie
No full textThe thesis addresses the translation and digitization of 1910s-1920s Russian poetry known as “zaum poetry”. The first chapter is a study of Russian zaum poetry from Velimir Hlebnikov, Aleksej Kručënyh and Il’â Zdanevič. The second chapter is an analysis of the reception of zaum poetry in Paris during the 1920s and during the after-war period. The third part is a critical and theoretical study of the problems of translating zaum poetry towards English and French. It includes studies of translations of zaum poetry by Jean-Claude Lanne, Allison Pultz and Gerald Janecek, André Markowicz, Régis Gayraud and Yvan Mignot. The fourth chapter is an analysis of translations of poems from Aleksej Kručënyh and Il’â Zdanevič by the author, as well as an analysis of their digital remediation by the author.Ph. D.Includes bibliographical referencesIncludes vitaby Jonathan Baillehach
Formalizing morphologically cryptic biological entities: New insights from DNA taxonomy, hybridization, and biogeography in the leafy liverwort <i>Porella platyphylla</i> (Jungermanniopsida, Porellales)
No full textPremise of the study: Recognition and formalization of morphologically cryptic species is a major challenge to modern taxonomy. An extreme example in this regard is the Holarctic Porella platyphylla s.l. (P. platyphylla plus P. platyphylloidea). Earlier studies demonstrated the presence of three isozyme groups and two molecular lineages. The present investigation was carried out to elucidate the molecular diversity of P. platyphylla s.l. and the distribution of its main clades, and to evaluate evidence for the presence of one vs. several species. Methods: We obtained chloroplast (atpB-rbcL, trnL-trnF) and nuclear ribosomal (ITS) DNA sequences from 101 Porella accessions (P. platyphylla s.l., P. x baueri, P. cordaeana, P. bolanderi, plus outgroup species) to estimate the phylogeny using parsimony and likelihood analyses. To facilitate the adoption of Linnean nomenclature for molecular lineages, we chose a DNA voucher as epitype. Key results: Phylogenies derived from chloroplast vs. nuclear data were congruent except for P. platyphylla s.l., including a North American lineage that was placed sister to P. cordaeana in the chloroplast DNA phylogeny but sister to the Holarctic P. platyphylla s.str. in the nuclear DNA phylogeny. European and North American accessions of P. cordaeana and P. platyphylla form sister clades. Conclusions: The genetic structure of P. platyphylla s.l. reflects morphologically cryptic or near cryptic speciation into Holarctic P. platyphylla s.str. and North American P. platyphylloidea. The latter species is possibly an ancient hybrid resulting from crossings of P. cordaeana and P. platyphylla s.str. and comprises several distinct molecular entities
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