ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Comparative losses of British butterflies, birds, and plants and the global extinction crisis (2004)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2004-03-20
    Description: There is growing concern about increased population, regional, and global extinctions of species. A key question is whether extinction rates for one group of organisms are representative of other taxa. We present a comparison at the national scale of population and regional extinctions of birds, butterflies, and vascular plants from Britain in recent decades. Butterflies experienced the greatest net losses, disappearing on average from 13% of their previously occupied 10-kilometer squares. If insects elsewhere in the world are similarly sensitive, the known global extinction rates of vertebrate and plant species have an unrecorded parallel among the invertebrates, strengthening the hypothesis that the natural world is experiencing the sixth major extinction event in its history.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thomas, J A -- Telfer, M G -- Roy, D B -- Preston, C D -- Greenwood, J J D -- Asher, J -- Fox, R -- Clarke, R T -- Lawton, J H -- New York, N.Y. -- Science. 2004 Mar 19;303(5665):1879-81.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Natural Environment Research Council (NERC) Centre for Ecology and Hydrology, Dorset Laboratory, Winfrith Technology Centre, Dorchester DT2 8ZD, UK. jat@ceh.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15031508" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biodiversity ; *Birds ; *Butterflies ; *Ecosystem ; Great Britain ; *Plants ; Population Density ; Population Dynamics
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    facet.materialart.
    Unknown
    An Eocene brontothere and tillodonts (Mammalia) from British Columbia, and their paleoenvironments (2017)
    National Research Council Canada (NRC)
    Details
    Publication Date: 2017-09-06
    Description: We describe Eocene fossils of the tillodont Trogosus from the Allenby Formation in Princeton, British Columbia (B.C.), as well as teeth of Brontotheriina from the lower Australian Creek Formation near Quesnel, B.C. These fossils represent the only occurrence of Tillodontia and Brontotheriidae in B.C. Further, the presence of the largest species of Trogosus — T. latidens — as well as a smaller species identified only as Trogosus sp. supports a late early – early middle Eocene (Bridgerian) age for the Vermilion Bluffs Shale of the Allenby Formation. Based on their morphology and large size, the teeth referred here to Brontotheriina represent one of the larger, more derived brontothere genera, and suggest a Uintan–Chadronian (middle–late Eocene) age range for the lower Australian Creek Formation that is consistent with radiometric ages of underlying volcanic rocks. Paleobotanical data from sediments correlative to those that produced these Eocene mammal fossils suggest they inhabited forested landscapes interspersed with swamps and open water environments, under mild and wet temperate climates (mean annual temperature (MAT) ~10–16 °C; cold month mean temperature (CMMT) –4–4 °C; mean annual precipitation (MAP) 〉100 cm/year). These mixed conifer–broadleaf forests included tree genera typical of modern eastern North American forests (e.g., Tsuga , Acer , Fagus , and Sassafras ), together with genera today restricted to east Asia (e.g., Metasequoia , Cercidiphyllum , Dipteronia , and Pterocarya ). The paleobotanical evidence is consistent with the hypothesized habitats of both tillodonts and brontotheres.
    Print ISSN: 0008-4077
    Electronic ISSN: 1480-3313
    Topics: Geosciences
    Published by National Research Council Canada (NRC)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 3
    Electronic Resource
    Electronic Resource
    Shining light on intelligence (1978)
    [s.l.] : Nature Publishing Group
    Nature 272 (1978), S. 576-576 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,-I agree with Hermann Bondi (16 March, page 204) that "a great deal of heat and little if any light has been generated by discussions of the inheritability or otherwise of intelligence" but I consider that the rest of his letter functions only to cloud the issue, obscuring the little light that ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/272576a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Does spider feeding behaviour optimize dietary essential amino acid composition? (1981)
    [s.l.] : Nature Publishing Group
    Nature 290 (1981), S. 165-165 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] GREENSTONE1 has concluded that the spider Pardosa ramulosa takes a non-random mixture of its three main prey and that this mixture optimizes the proportions of the essential amino acids in the diet. For statistical reasons, these conclusions are invalid. The spiders fall into eight classes, which ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/290165b0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    IQ and race (1974)
    [s.l.] : Nature Publishing Group
    Nature 249 (1974), S. 594-594 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR,-In her recent communication Tizard1. showed that the effects of environment on IQ are great but that racial differences are not significant. In fact, her data on children of 4.5 yr divided into those still in institutions, those returned to their natural mothers, and those adopted, show that ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/249594b0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Three-year cycles of lemmings and Arctic geese explained (1987)
    [s.l.] : Nature Publishing Group
    Nature 328 (1987), S. 577-577 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] EVERYONE knows that many populations of lemmings vary enormously in size and that these variations follow fairly regular cycles. Arctic biologists are equally aware that these variations have profound effects on the predators of lemmings such as Arctic foxes: when lemming popula-tions crash, the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/328577a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    In the bag (1991)
    [s.l.] : Nature Publishing Group
    Nature 352 (1991), S. 392-392 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] CATCHING birds has long been a matter of art and ingenuity. Many of the traps invented have been capable of capturing birds alive, which has allowed birds to be taken into captivity. The great diversity of trapping methods that has developed has been taken over by bird-ringers ('banders' in ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/352392a0
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Egg-laying Yellow Fever Mosquitoes avoid sites containing eggs laid by themselves or by conspecifics (1990)
    Springer
    Entomologia experimentalis et applicata 57 (1990), S. 295-298 
    Details
    ISSN: 1570-7458
    Keywords: Mosquitoes ; egg-laying ; superoviposition ; experimental methodology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00355029
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    facet.materialart.
    Unknown
    The chlorine isotope fingerprint of the lunar magma ocean (2015)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2015-09-26
    Description: The Moon contains chlorine that is isotopically unlike that of any other body yet studied in the Solar System, an observation that has been interpreted to support traditional models of the formation of a nominally hydrogen-free ("dry") Moon. We have analyzed abundances and isotopic compositions of Cl and H in lunar mare basalts, and find little evidence that anhydrous lava outgassing was important in generating chlorine isotope anomalies, because 37 Cl/ 35 Cl ratios are not related to Cl abundance, H abundance, or D/H ratios in a manner consistent with the lava-outgassing hypothesis. Instead, 37 Cl/ 35 Cl correlates positively with Cl abundance in apatite, as well as with whole-rock Th abundances and La/Lu ratios, suggesting that the high 37 Cl/ 35 Cl in lunar basalts is inherited from urKREEP, the last dregs of the lunar magma ocean. These new data suggest that the high chlorine isotope ratios of lunar basalts result not from the degassing of their lavas but from degassing of the lunar magma ocean early in the Moon’s history. Chlorine isotope variability is therefore an indicator of planetary magma ocean degassing, an important stage in the formation of terrestrial planets.
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 10
    facet.materialart.
    Unknown
    Anticyclonic eddies are more productive than cyclonic eddies in subtropical gyres because of winter mixing (2016)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2016-05-22
    Description: Mesoscale eddies are ubiquitous features of ocean circulation that modulate the supply of nutrients to the upper sunlit ocean, influencing the rates of carbon fixation and export. The popular eddy-pumping paradigm implies that nutrient fluxes are enhanced in cyclonic eddies because of upwelling inside the eddy, leading to higher phytoplankton production. We show that this view does not hold for a substantial portion of eddies within oceanic subtropical gyres, the largest ecosystems in the ocean. Using space-based measurements and a global biogeochemical model, we demonstrate that during winter when subtropical eddies are most productive, there is increased chlorophyll in anticyclones compared with cyclones in all subtropical gyres (by 3.6 to 16.7% for the five basins). The model suggests that this is a consequence of the modulation of winter mixing by eddies. These results establish a new paradigm for anticyclonic eddies in subtropical gyres and could have important implications for the biological carbon pump and the global carbon cycle.
    Electronic ISSN: 2375-2548
    Topics: Natural Sciences in General
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...