Site history affects soil and plant 15 N natural abundances (δ 15 N) in forests of northern Vancouver Island, British Columbia
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چکیده
منابع مشابه
Detecting Omnivory with Δ Δ 15 N
is no unambiguous evidence that plumicolous feather mites chew holes in feathers; such damage is usually caused by feather lice. Also, it has been reported that feather mites of the great-spotted woodpecker (Dryobates major) and the hoopoe (Upupa epops) avoid white spots on the feathers and instead aggregate on melanized areas 5. Thus, as we stressed in our review 3 , extrapolating from lice to...
متن کاملPreliminary Geology of the Nimpkish Map Area (NTS 092L/07), Northern Vancouver Island, British Columbia
North ern Van cou ver Is land is richly en dowed in a va ri ety of base and pre cious-metal de pos its. For ex am ple, the Cu-Mo-Au por phyry de posit at the for mer Is land Cop per mine (1971–1994) pro duced ap prox i mately 345 mil lion tonnes of ore with av er age head grades of 0.41 wt% Cu, 0.017% Mo, 0.19 g/t Au and 1.4 g/t Ag (Perello et al., 1995). Other por phyry de pos its are known to...
متن کاملExtreme enrichment in atmospheric 15 N 15 N Laurence
Department of Earth, Environmental and Planetary Sciences, Rice University, Houston, TX 77005, USA. Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, Los Angeles, CA 90089, USA. Department of Integrative Biology and Department of Energy Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI 48824, USA. Department of Earth and ...
متن کاملCompost - N recovery : 15 N natural abundance quantitative approach Caio
The remarkable influence of organic inputs, such as manure and compost, on dN values of growing plants suggests the possible use of N natural abundance as a tracer of N. Thus, using N natural abundance might be possible to estimate compost-N recovery as an alternative method to the use of N-enriched materials. The objective of this study was to verify the feasibility of using dN value to esti...
متن کاملUltra - violet absorption cross sections of isotopically substituted nitrous oxide species : 14 N 14 NO , 15 N 14 NO , 14 N 15 NO and 15 N 15 NO
The isotopically substituted nitrous oxide species 14N14NO, 15N14NO, 14N15NO and 15N15NO were investigated by ultra-violet (UV) absorption spectroscopy. High precision cross sections were obtained for the wavelength range 181 to 218 nm at temperatures of 233 and 283 K. These data are used to calculate photolytic isotopic fractionation constants as a function of wavelength. The fractionation con...
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ژورنال
عنوان ژورنال: Functional Ecology
سال: 2000
ISSN: 0269-8463
DOI: 10.1046/j.1365-2435.2000.00424.x