Výsledky vyhledávání - "James C. Schardt"

Early detection monitoring for aquatic non-indigenous species: Optimizing surveillance, incorporating advanced technologies, and identifying research needs

Autor: W. Lindsay Chadderton, Carol A. Stepien, Erik M. Pilgrim, Erin K. Grey, John A. Darling, Scott P. Egan, Jeffrey L. Ram, Andrew R. Mahon, John R. Kelly, Syed A. Hashsham, Katy E. Klymus, Joel C. Hoffman, Martin T. Schultz, James C. Schardt, Emily A. Brown, Anett S. Trebitz

Publikováno v: Journal of Environmental Management. 202:299-310

Following decades of ecologic and economic impacts from a growing list of nonindigenous and invasive species, government and management entities are committing to systematic early- detection monitoring (EDM). This has reinvigorated investment in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a7349ec2827835f161d5027d8a900e9
https://doi.org/10.1016/j.jenvman.2017.07.045

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Symbiotic N2-fixation in alpine tundra: ecosystem input and variation in fixation rates among communities

Autor: Steven K. Schmidt, William D. Bowman, James C. Schardt

Publikováno v: Oecologia. 108:345-350

Annual inputs of symbiotic N2-fixation associated with 3 species of alpine Trifolium were estimated in four alpine communities differing in resource supplies. We hypothesized that fixation rates would vary according to the degree of N, P, and water l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7750f0b064b220215f38cb276dd2fb1e
https://doi.org/10.1007/bf00334660

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Constraints of Nutrient Availability on Primary Production in Two Alpine Tundra Communities

Autor: William D. Bowman, Richard T. Conant, James C. Schardt, Theresa A. Theodose

Publikováno v: Ecology. 74:2085-2097

A nutrient amendment experiment was conducted for two growing seasons in two alpine tundra communities to test the hypotheses that: (1) primary production is limited by nutrient availability, and (2) physiological and developmental constraints act to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa3cf70b1537beda09eccdbb4ac033eb
https://doi.org/10.2307/1940854

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Symbiotic N

Autor: William D, Bowman, James C, Schardt, Steven K, Schmidt

Publikováno v: Oecologia. 108(2)

Annual inputs of symbiotic N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::f9295ff0a66395e45719929e1c6f35b4
https://pubmed.ncbi.nlm.nih.gov/28307848

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Uptake and Allocation of 15 N in Alpine Plants: Implications for the Importance of Competitive Ability in Predicting Community Structure in a Stressful Environment

Autor: James C. Schardt, William D. Bowman, Charles H Jaeger, Theresa A. Theodose

Publikováno v: Oikos. 75:59

Several potential components of competitive ability were determined for 13 plant species in a N-limited alpine moist meadow community in order to determine if competition had an influence on relative abundance in this stressful environment. The compo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db369144397f754ec7ef8679d537cfcc
https://doi.org/10.2307/3546321

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