scispace - formally typeset
Open AccessJournal ArticleDOI

Use of Variations in Natural Nitrogen Isotope Abundance for Environmental Studies: A Questionable Approach

TLDR
The comments of the Commissioners as published show a deep schism within the Commission on the validity of the actions taken on this Declaration, and it is unfortunate that Mayr and his colleagues have not made this schism clear in their statement because it will be read and acted upon by many who have no access to the Declaration itself.
Abstract
publication. Several of the Commissioners objected to the inclusion of this vote with the Declaration because they did not consider it official, and this presumably forms the basis for the statement in Mayr et al. (1) concerning the vote. However, the issue was submitted a second time to the Commission, asking if they approved the publication of the vote, and the ballot on this question was 17 to 5 in favor. The comments of the Commissioners as published show a deep schism within the Commission on the validity of the actions taken on this Declaration, and we consider it unfortunate that Mayr and his colleagues have not made this schism clear in their statement because it will be read and acted upon by many who have no access to the Declaration itself. If the opinions of the majority of the Commissioners are to be accepted, one cannot accept the minority opinion expressed by Mayr et al. Mayr et al. state, as if 'a fait accompli, that the Commission cannot repeal Art. 23(b). However, in the history following Declaration 43, it is clear that the legal adviser to the Commission, the Secretary, and some Commissioners do believe that the Commission has the authority to delete or suspend parts of the Code, such as Art. 23(b). The important question for the working taxonomist is, if the Commission does have this authority, did they in fact repeal or suspend Art. 23(b). As defined by Art. 78 of the Code, a Declaration is a provisional amendment to the Code. It is to be issued by the Commission in a case that \"involves a situation that is not properly or completely covered by the Code,\" and this Declaration remains in force until the next succeeding Congress ratifies or rejects it. We believe that the Commission did suspend Art. 23(b) until the next International Congress of Zoology this summer and that zoologists who are seeking to preserve well-established names must apply to the Commission to preserve them under the plenary powers. BRUCE B. COLLETTE DANIEL M. COHEN National Marine Fisheries Service, Systematics Laboratory, National Museum of Natural History, Washington, D. C. 20560 JAMES A. PETERS Division of Amphibians and Reptiles, National Museum of Natural History, Washington, D. C. 20560

read more

Citations
More filters
Journal ArticleDOI

Tansley Review No. 95 15N natural abundance in soil-plant systems

TL;DR: Measurements of δ15 N might offer the advantage of giving insights into the N cycle without disturbing the system by adding 15 N tracer, as well as giving information on N source effects, which can give insights into N cycle rates.
Book ChapterDOI

Tracing nitrogen sources and cycling in catchments

Carol Kendall
TL;DR: In this article, the authors focus on the uses of isotopes to understand water chemistry and discuss the use of isotopic techniques to assess impacts of changes in land management practices and land use on water quality.
Book ChapterDOI

Tracing Anthropogenic Inputs of Nitrogen to Ecosystems

TL;DR: For example, the World Health Organization and U.S. Environmental Protection Agency have set a limit of 10 mg L nitrate (as N) for drinking water because nitrate poses a health risk, especially for children, who can contract methemoglobinemia (blue-baby syndrome) as mentioned in this paper.
Journal ArticleDOI

Isotopic studies of nitrogen pollution in the hydrosphere and atmosphere: A review

TL;DR: A review of the use of 15N/14N ratios in investigating sources and mechanisms of pollution in the hydrosphere is given in this paper, where it is shown that these differences are largely the result of kinetic isotope fractionation associated with bacterially-mediated reactions.
Journal ArticleDOI

Nitrogen-stable isotope signatures in estuarine food webs : A record of increasing urbanization in coastal watersheds

TL;DR: In this paper, stable isotope data from a series of estuaries receiving nitrogen loads from 2 to 467 kg N ha -1 yr -1 from the Waquoit Bay watershed, Cape Cod, Massachusetts, indicate that producer and consumer 15 N to 14 N ratios record increases in wastewater nitrogen inputs.
References
More filters
Journal ArticleDOI

Fertilizer Nitrogen: Contribution to Nitrate in Surface Water in a Corn Belt Watershed

TL;DR: It is estimated that at the time of peak nitrate concentration in the spring of 1970 a minimum of 55 to 60 percent of the nitrogen found as nitrate in the surface waters of this watershed originated from fertilizer nitrogen.
Journal ArticleDOI

The isotope effect in the fixation of nitrogen by azotobacter

TL;DR: In this article, the relative rates of fixation of N/sup 14/N/Sup 14 and n/sup 15/N /sup 14 by Azotobacter were studied and the ratio of these rates is 1.000 plus or minus 0.001.
Journal ArticleDOI

Variations of Nitrogen-15 Abundance in Soils.

TL;DR: There is variation in the abundance of nitrogen-15 in soils and in different forms of soil nitrogen, but it cannot be attributed to analytical errors and should be considered in studies of nitrogen transformation in soils when nitrogen- 15 is used as a tracer.
Related Papers (5)