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  • 1
    Publication Date: 2008-02-16
    Description: Weir and Schluter (Reports, 16 March 2007, p. 1574) used variation in the age distribution of sister species to estimate that recent rates of speciation decline toward the tropics. However, this conclusion may be undermined by taxonomic biases, sampling artifacts, and the sister-species method, all of which tend to underestimate diversification rates at low latitudes.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Tobias, Joseph A -- Bates, John M -- Hackett, Shannon J -- Seddon, Nathalie -- New York, N.Y. -- Science. 2008 Feb 15;319(5865):901; author reply 901. doi: 10.1126/science.1150568.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Edward Grey Institute, Department of Zoology, University of Oxford, Oxford OX1 3PS, UK. joseph.tobias@zoo.ox.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18276872" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Biodiversity ; *Birds/classification/genetics ; *Extinction, Biological ; *Genetic Speciation ; Geography ; Haplotypes ; *Mammals/classification/genetics ; *Passeriformes/classification/genetics ; Phylogeny ; Tropical Climate
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 2
    Publication Date: 2014-07-26
    Description: The rate of biodiversity loss is not slowing despite global commitments, and the depletion of animal species can reduce the stability of ecological communities. Despite this continued loss, some substantial progress in reversing defaunation is being achieved through the intentional movement of animals to restore populations. We review the full spectrum of conservation translocations, from reinforcement and reintroduction to controversial conservation introductions that seek to restore populations outside their indigenous range or to introduce ecological replacements for extinct forms. We place the popular, but misunderstood, concept of rewilding within this framework and consider the future role of new technical developments such as de-extinction.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seddon, Philip J -- Griffiths, Christine J -- Soorae, Pritpal S -- Armstrong, Doug P -- New York, N.Y. -- Science. 2014 Jul 25;345(6195):406-12. doi: 10.1126/science.1251818.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Zoology, University of Otago, Post Office Box 56, Dunedin, New Zealand. philip.seddon@otago.ac.nz. ; School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK. ; Environment Agency, Abu Dhabi, United Arab Emirates. ; Institute of Natural Resources, Massey University, Private Bag 11222, Palmerston North, New Zealand.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25061203" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; Conservation of Natural Resources/*methods ; *Endangered Species ; *Extinction, Biological ; Humans ; Population
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of sol gel science and technology 8 (1997), S. 139-145 
    ISSN: 1573-4846
    Keywords: ormosils ; photonic materials ; IR spectroscopy ; solid state NMRspectroscopy ; BET surface area
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Class II ormosils in the systems: methyl, propyl, vinyl and phenyl silicates have been structurally investigated for their suitability as photonic materials and this paper is a precis of many data. From visible and near-infrared spectroscopy these ormosils have: (i) intrinsic optical windows in the visible and at 1.06, 1.3 and 1.55 μ m and (ii) low residual water, despite being synthesised at only 60° C. The residual water can be expelled under vacuum. Solid state29 Si nuclear magnetic resonance spectroscopy shows that matrix condensation increases as the organic content of the matrix is increased; this is accompanied by a decrease in BET surface area.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Journal of sol gel science and technology 8 (1997), S. 139-145 
    ISSN: 1573-4846
    Keywords: ormosils ; photonic materials ; IR spectroscopy ; solid state NMR spectroscopy ; BET surface area
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Class II ormosils in the systems: methyl, propyl, vinyl and phenyl silicates have been structurally investigated for their suitability as photonic materials and this paper is a precis of many data. From visible and near-infrared spectroscopy these ormosils have: (i) intrinsic optical windows in the visible and at 1.06, 1.3 and 1.55 μm and (ii) low residual water, despite being synthesised at only 60°C. The residual water can be expelled under vacuum. Solid state29Si nuclear magnetic resonance spectroscopy shows that matrix condensation increases as the organic content of the matrix is increased; this is accompanied by a decrease in BET surface area.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
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