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  • 1
    Digitale Medien
    Digitale Medien
    Association between feral pig disturbance and the composition of some alien plant assemblages in Hawaii Volcanoes National Park (1991)
    Springer
    Plant ecology 95 (1991), S. 55-62 
    Details
    ISSN: 1573-5052
    Schlagwort(e): Alien plants ; Hawaii ; Soil disturbance ; Sus scrofa
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Abstract Association analysis was used to assess relationships among 25 important alien plant species and their association with feral pig rooting in Hawaii Volcanoes National Park, Hawaii, U.S.A. Results of the association analysis were summarized by means of a simplified, rank-based, polar ordination which yielded three subjective species assemblages. One group was characterized by an association with the endpoint species, Ehrharta stipoides. A second group consisted of species associated with the other endpoint species, Andropogon virginicus. The third group comprised a diverse assemblage of 14 species in the middle of the ordination. Comparison of ordination scores with each species's association with pig-induced soil disturbance revealed that members of the Ehrharta group were strongly positively associated with pig activity, whereas members of the Andropogon group were generally negatively associated. The third group showed no association with pig-induced soil disturbance. These results suggest a strong relationship between feral pig activity and the composition of the alien portion of the plant community. Analysis of the ecologies of both plants and pigs suggests that some species may both encourage pig activity and benefit from it. Likewise, other alien plants appear to neither require nor benefit from pig-induced soil disturbance. While pigs appear to play an important role in the organization of these communities, their removal may have a negligible impact on the success of many of the common weeds in the area.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00124953
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 2
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    Magnetic properties of Hf177 and Hf180 in the strong-coupling deformed model (2014)
    American Physical Society (APS)
    Details
    Publikationsdatum: 2014-04-08
    Beschreibung: Author(s): S. Muto, N. J. Stone, C. R. Bingham, J. R. Stone, P. M. Walker, G. Audi, C. Gaulard, U. Köster, J. Nikolov, K. Nishimura, T. Ohtsubo, Z. Podolyak, L. Risegari, G. S. Simpson, M. Veskovic, and W. B. Walters This paper reports NMR measurements of the magnetic dipole moments of two high-K isomers, the 37/2−, 51.4 m, 2740 keV state in Hf177 and the 8−, 5.5 h, 1142 keV state in Hf180 by the method of on-line nuclear orientation. Also included are results on the angular distributions of γ transitions in the... [Phys. Rev. C 89, 044309] Published Mon Apr 07, 2014
    Schlagwort(e): Nuclear Structure
    Print ISSN: 0556-2813
    Digitale ISSN: 1089-490X
    Thema: Physik
    Publiziert von American Physical Society (APS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Magnetic moments of 2_{1}^{+} states in ^{124,126,128}Sn (2013)
    American Physical Society (APS)
    Details
    Publikationsdatum: 2013-05-21
    Beschreibung: Author(s): J. M. Allmond, A. E. Stuchbery, D. C. Radford, A. Galindo-Uribarri, N. J. Stone, C. Baktash, J. C. Batchelder, C. R. Bingham, M. Danchev, C. J. Gross, P. A. Hausladen, K. Lagergren, Y. Larochelle, E. Padilla-Rodal, and C.-H. Yu The g factors of the first-excited states of stable 124 Sn and radioactive 126,128 Sn were measured by the recoil-in-vacuum method with comparatively high precision. The experiments were performed at the Holifield Radioactive Ion Beam Facility by Coulomb exciting ∼3 MeV/u beams in inverse kinematics o... [Phys. Rev. C 87, 054325] Published Mon May 20, 2013
    Schlagwort(e): Nuclear Structure
    Print ISSN: 0556-2813
    Digitale ISSN: 1089-490X
    Thema: Physik
    Publiziert von American Physical Society (APS)
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Ferromagnetic resonance intensity - A rapid method for determining lunar glass bead origin (1982)
    In:  Other Sources
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: Ferromagnetic resonance intensity, I(s), relies on the absence or presence of single-domain Fe formed during impact melting by autoreduction of Fe(2+) in the melt to distinguish volcanic from impact glass spherules in the lunar soil. SEM inspection of individual glass bead surfaces gave reliable evidence of the mode of glass genesis. Ferromagnetic resonance intensity was tested against the Apollo 15 and 17 volcanics. I(s) values of less than one were found in 94% of the volcanic glasses, implying the absence of single-domain Fe, while 75% of the impact glasses had elevated I(s) values. These samples lack single-domain Fe, and may represent impact melts of bedrock with little or no regolith contribution. Both the primary discrimination of volcanic and impact glasses, and the secondary one of bedrock-derived impact melts from impact melts partially or entirely derived from regolith, have been demonstrated for the I(s) technique.
    Schlagwort(e): LUNAR AND PLANETARY EXPLORATION
    Materialart: Lunar and Planetary Science Conference; Mar 15, 1982 - Mar 19, 1982; Houston, TX
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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