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 [1];  [1]
  1. Stroud Water Research Center, Academy of Natural Sciences of Philadelphia, Avondale Pennsylvania 19311
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Journal Article: Publisher's Accepted Manuscript
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Additional Journal Information:
Journal Volume: 36; Journal Issue: 4; Related Information: CHORUS Timestamp: 2017-10-20 16:11:59; Journal ID: ISSN 0014-3820
Country of Publication:
United States

Citation Formats

Sweeney, Bernard W., and Vannote, Robin L.. POPULATION SYNCHRONY IN MAYFLIES: A PREDATOR SATIATION HYPOTHESIS. United States: N. p., 2017. Web. doi:10.1111/j.1558-5646.1982.tb05447.x.
Sweeney, Bernard W., & Vannote, Robin L.. POPULATION SYNCHRONY IN MAYFLIES: A PREDATOR SATIATION HYPOTHESIS. United States. doi:10.1111/j.1558-5646.1982.tb05447.x.
Sweeney, Bernard W., and Vannote, Robin L.. 2017. "POPULATION SYNCHRONY IN MAYFLIES: A PREDATOR SATIATION HYPOTHESIS". United States. doi:10.1111/j.1558-5646.1982.tb05447.x.
author = {Sweeney, Bernard W. and Vannote, Robin L.},
abstractNote = {},
doi = {10.1111/j.1558-5646.1982.tb05447.x},
journal = {Evolution},
number = 4,
volume = 36,
place = {United States},
year = 2017,
month = 5

Journal Article:
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This content will become publicly available on May 31, 2018
Publisher's Accepted Manuscript

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  • A recent epidemiological survey on childhood malignant disease in the region of Ellweiler, Rheinland-Pfalz, Germany, revealed a significantly increased incidence of childhood leukemia, but observed incidences of lymphoma and solid tumors were normal. Established risk factors such as individual exposure to chemicals as well as hereditary genetic disorders were ruled out in interviews with the patients or their families. The general population in the region, however, is subjected to considerable doses of ionizing radiation due to high levels of external {gamma} radiation and high activities of indoor radon. Radiation-specific chromosome aberrations were found in one of two healthy siblings andmore » one father of leukemia patients as well as in any of three probands living in houses with high indoor radon activities. Radon and natural {gamma} radiation, however, cannot explain the geographical pattern of the cases. Four out of seven cases were observed in two particular villages near a uranium processing plant. The drinking water of these villages partly came from a small river that was contaminated with radium-226 washed out from the dumps of the uranium plant. Only sparse measurements of {sup 226}Ra are available, but derived red bone marrow doses for children in the two villages obtained from a simple radio-ecological model show the significance of the drinking water pathway. Prenatal {sup 226}Ra exposure of fetuses due to placental transfer and accumulation may have led to significant doses and may explain the excess cases of childhood leukemia in the region even in quantitative terms. 11 refs., 6 tabs.« less
  • Fibers from seven crocidolite samples used by M.F. Stanton et al. were measured from STEM and optical images. Their masses were computed. From these data, the population was normalized to a sample mass of 1, and the number of fibers in various size categories of a sample was compared to the tumor probability for each sample. The purpose of this study were (1) to evaluate errors in and the utility of population characterization by index number (log of the number of particles longer than 8 with widths equal to or less than 0.25 and (2) tomore » review the Stanton hypothesis in view of this analysis. The study found that in most cases the index number is a reliable population parameter. However, index numbers between 0 and 2.5 cannot be obtained. Therefore, populations of mineral fibers will fall into two groups: those without index particles, which have indeterminant index numbers, and those with index numbers between 2.5 and 6.0. Results suggest the possibility that factors other than size and shape play a role in mineral fiber carcinogenicity.« less
  • Analysis of Hexagenia mayfly distribution patterns has proven to be a simple, inexpensive method of monitoring water quality in the Upper Mississippi River. Burrowing Hexagenia nymphs live at the mud-water interface intimately associated with the organically enriched sediments that have a strong affinity for contaminants. By their presence or absence in silted habitats, they assess the synergistic effects of hypoxia, toxins, and other stresses throughout the year. Adults are large and easily collected, providing inexpensive water quality monitoring on a river so large that comprehensive chemical, physical, and biological analyses are not logistically feasible or affordable. Pollution abatement in metropolitanmore » Minneapolis-St. Paul allowed a recurrence of Hexagenia in formerly denuded areas of Pool 2 and Lake Pepin during the early 1980s, but the drought of 1988 caused a population crash in both areas, demonstrating that the environment at the mud-water interface was intolerable to Hexagenia during low flow conditions. 39 refs., 3 figs.« less