Výsledky vyhledávání - "Michael E. McDonald"

Stream Condition and Infant Mortality in U.S. Mid-Atlantic States

Autor: Michael E. McDonald, Steven F. Hedtke, John F. Paul

Publikováno v: Human and Ecological Risk Assessment: An International Journal. 14:728-741

Infant mortality rate (IMR) serves as a summary measure of the health of a nation's population. The U.S. IMR has declined over the past several decades (to 6.85 per 1000 in 2003), but remains high compared with other developed countries. We hypothesi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4506c2883cdeea530822596dfbc311d4
https://doi.org/10.1080/10807030802235144

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LETTERS

Autor: Chaplain Monica Cichon, Patrick Mason, Bob Wrathall, Stephanie Corey, Keith Baker, Michael E. McDonald

Publikováno v: Dialogue: A Journal of Mormon Thought. 39:v-x

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a3f5cbbf9d7a10d43d2164b123c27537
https://doi.org/10.2307/45227211

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Effects of large lake trout (Salvelinus namaycush) on the dietary habits of small lake trout: a comparison of stable isotopes (δ15N and δ13C) and stomach content analyses

Autor: W. John O’Brien, Matthew D. Keyse, Michael E. McDonald, Kenneth Fortino, Chris Luecke, Anne E. Hershey, Philip W. Lienesch

Publikováno v: Hydrobiologia. 579:175-185

We examined the effect of large (potentially piscivorous) lake trout (Salvelinus namaycush) on the dietary habits of small lake trout in an arctic lake. We hypothesized that large lake trout constrain the foraging of small lake trout, thus, in the ab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::815b53eafada2ed5bbe45fce6f72f27b
https://doi.org/10.1007/s10750-006-0399-2

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Effect of landscape factors on fish distribution in arctic Alaskan lakes

Autor: S. Beaty, Anne E. Hershey, P. P. Mou, Carl Richards, G. A. Gettel, Amber J. Ulseth, Matthew D. Keyse, W. J. O'Brien, Michael E. McDonald, Philip W. Lienesch, Chris Luecke, J. A. Schuldt, C. H. Mayer, Michael C. Miller, Steve C. Whalen, Kenneth Fortino

Publikováno v: Freshwater Biology. 51:39-55

Summary 1. The distribution of species is affected by many factors operating at a variety of temporal and spatial scales in a heterogeneous landscape. In lakes, fish communities are dynamic, influenced by landscape-level factors that control colonisa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c3335559bc6c4334a77ceb38aa4bc690
https://doi.org/10.1111/j.1365-2427.2005.01474.x

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DEVELOPMENT OF EMPIRICAL, GEOGRAPHICALLY SPECIFIC WATER QUALITY CRITERIA: A CONDITIONAL PROBABILITY ANALYSIS APPROACH

Autor: John F. Paul, Michael E. McDonald

Publikováno v: Journal of the American Water Resources Association. 41:1211-1223

The need for scientifically defensible water quality standards for nonpoint source pollution control continues to be a pressing environmental issue. The probability of impact at differing levels of nonpoint source pollution was determined using the b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5ee9c9370afcd817e6f49b77fd0209a3
https://doi.org/10.1111/j.1752-1688.2005.tb03795.x

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Application of Ecological Indicators

Autor: Michael E. McDonald, Gerald J. Niemi

Publikováno v: Annual Review of Ecology, Evolution, and Systematics. 35:89-111

▪ Abstract Ecological indicators have widespread appeal to scientists, environmental managers, and the general public. Indicators have long been used to detect changes in nature, but the scientific maturation in indicator development primarily has

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c50084c2edaa8bc0fd8b52b46a5a5ed
https://doi.org/10.1146/annurev.ecolsys.35.112202.130132

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Benthos as the basis for arctic lake food webs

Autor: Douglas A. Jensen, Michael E. McDonald, Michael E. Sierszen

Publikováno v: Aquatic Ecology. 37:437-445

Plankton have traditionally been viewed as the basis for limnetic food webs, with zooplankton acting as a gateway for energy passing between phytoplanktonic primary producers and fish. Often, benthic production has been considered to be important pri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f02a58d9662c2d43f4f64326ababbed
https://doi.org/10.1023/b:aeco.0000007042.09767.dd

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