Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Jefferson G. Lebkuecher"'
Publikováno v:
Journal of Freshwater Ecology, Vol 38, Iss 1 (2023)
AbstractAssemblages of infralittoral periphytic algae are understudied due partially to the historical emphasis on phytoplankton and other water-column characteristics to evaluate the integrity of lentic systems. We tested the null hypothesis that ch
Externí odkaz:
https://doaj.org/article/577ae63dab624f81b0684aa6e5bbc27c
Publikováno v:
Journal of Freshwater Ecology, Vol 32, Iss 1, Pp 363-389 (2017)
Evaluations of the composition and biomass of photoautotrophic periphyton, nutrient concentrations of water, and concentrations of total phosphorous of benthic organic matter at eight stream sites in Middle Tennessee were used to: (1) document the co
Externí odkaz:
https://doaj.org/article/e68576a3186843c8a260aa74da035b4e
Publikováno v:
Journal of Freshwater Ecology, Vol 32, Iss 1, Pp 363-389 (2017)
Evaluations of the composition and biomass of photoautotrophic periphyton, nutrient concentrations of water, and concentrations of total phosphorous of benthic organic matter at eight stream sites in Middle Tennessee were used to: (1) document the co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf9a5f93e83b47482237a55da3ee7c05
https://doaj.org/article/e68576a3186843c8a260aa74da035b4e
https://doaj.org/article/e68576a3186843c8a260aa74da035b4e
Publikováno v:
Castanea. 85:122
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::218f8fbffd3c3437f6f841c0c01152d1
https://doi.org/10.2179/0008-7475.85.1.122
https://doi.org/10.2179/0008-7475.85.1.122
Publikováno v:
Journal of Freshwater Ecology. 30:349-376
Knowledge of the effects of nutrient concentration on the composition and structure of photoautotrophic periphyton is essential to understand the impact of eutrophication on shallow lotic systems. Reaches of Sulphur Fork Creek upstream and downstream
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2db981c27ba7bb694357110652c0ae26
https://doi.org/10.1080/02705060.2014.951883
https://doi.org/10.1080/02705060.2014.951883
Publikováno v:
Castanea. 76:279-292
Assessments of stream biology are prerequisites to developing watershed management plans to improve ecological integrity. We sampled six streams in the Red River Watershed of North-Central Tennessee to evaluate the effects of non-point source polluti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::750d61f13a13dfd3b216be25d11e1e5d
https://doi.org/10.2179/10-037.1
https://doi.org/10.2179/10-037.1
Autor:
Josh C. Kraft, Zach A. Irick, Samantha L. Childs, Cooper A. Breeden, Bailey S. Hauskins, Jonathan M. Krausfeldt, Nicole I. Santoyo, Jefferson G. Lebkuecher, Matthew C. Evans, Sandra Bojic
Publikováno v:
Castanea. 83:288
Four sites of the Harpeth River, two upstream and two downstream of the Franklin Wastewater Treatment Facility in Franklin, Tennessee, were sampled to assess the impact of nutrient enrichment on the integrity of photoautotrophic periphyton. Concentra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::652e391b2bdc8297247cf6678c411b20
https://doi.org/10.2179/18-163
https://doi.org/10.2179/18-163
Autor:
Sary A Joudah, Christine E Harris, Kurt A Haldeman, Sonia L Holz, Jefferson G. Lebkuecher, Darcy A Minton
Publikováno v:
American Journal of Botany. 86:1087-1092
Light-induced development of photosystem (PS)-II activity was followed during irradiance of etiolated Helianthus annuus (sunflower) cotyledons using chlorophyll a fluorescence. Cotyledons from seedlings grown in continuous darkness for 6 d were expos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c384faa66de90e3ff0fd2b2c0ed1cfc7
https://doi.org/10.2307/2656970
https://doi.org/10.2307/2656970
Autor:
Jefferson G. Lebkuecher
Publikováno v:
American Journal of Botany. 84:792-797
The chlorophyllous spores of Equisetum survive desiccation, yet cannot tolerate this quiescent state for more than -2 wk. The hypothesis that spore viability of Equisetum hyemale L. is limited by inhibition of photosynthetic recovery was tested using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f1f04c9d719d69941ca091444aab053
https://doi.org/10.2307/2445815
https://doi.org/10.2307/2445815
Publikováno v:
Canadian Journal of Botany. 70:205-211
Selaginella lepidophylla (Hook, and Grev.) Spring, a poikilohydrous desert pteridophyte, curls dramatically during desiccation. As part of a larger study of potential photoinhibition in this resurrection plant, the hypothesis that stem curling may am
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e982242c59fb12a85d36dccba2bcf39
https://doi.org/10.1139/b92-028
https://doi.org/10.1139/b92-028