scholarly journals Polyploidy: a factor in the evolution of Dicerandra Benth. (Labiatae)

1997 ◽  
Vol 54 (2) ◽  
pp. 217-229 ◽  
Author(s):  
R. B. Huck ◽  
H. L. Chambers
Keyword(s):  
United States ◽  
Base Number ◽  
Eastern United States ◽  
The South ◽  
Chromosome Counts ◽  
South Eastern ◽  
Conservation Implications ◽  
First Time

Chromosome counts are reported for the first time in Dicerandra Benth. (Labiatae), a genus endemic to the south-eastern United States. Representative taxa are tetraploid (n = 16) and hexaploid (n = 24). Diploids were not found. The systematic, phytogeographic and conservation implications of polyploidy in this genus are discussed. The monophyletic nature of the genus is upheld by the discovery that both sections have a presumed base number of x = 8. Hexaploidy has apparently evolved independently in all branches of sect. Dicerandra, but not in sect. Lecontea.

Near-real time mapping of Keetch-Byram drought index in the south-eastern United States

2002 ◽  
Vol 11 (4) ◽  
pp. 281 ◽  
Author(s):  
Michael J. Janis ◽  
Michael B. Johnson ◽  
Gloria Forthun
Keyword(s):  
United States ◽  
Drought Index ◽  
Maximum Temperature ◽  
Daily Maximum Temperature ◽  
Mean Annual Precipitation ◽  
Eastern United States ◽  
The South ◽  
South Eastern ◽  
Input Parameters ◽  
Weather Stations

High spatial resolution maps of daily Keetch-Byram Drought Index (KBDI) are constructed for the south-eastern United States. KBDI is a cumulative algorithm for estimating fire potential from meteorological information, including daily maximum temperature, daily total precipitation, and mean annual precipitation. With few input parameters, the KBDI is attractive for providing estimates of fire potential at a large number of locations. The Southeast Regional Climate Center (SERCC) applies the original algorithms over daily time steps to maximize the response time in the event of rapidly increasing fire potential. Algorithms are applied to a network of 261 weather stations across the south-eastern United States to provide regional contour maps of KBDI as well as maps of week-to-week KBDI difference. Though uniformity and spatial density of weather stations and the consistency of input parameters are potential hurdles, it is shown that careful compilation of meteorological databases makes KBDI a tractable and valuable monitoring tool for automated fire-potential monitoring.

A new genus and species of lungless salamander (family Plethodontidae) from the Appalachian highlands of the south-eastern United States

2009 ◽  
Vol 279 (1) ◽  
pp. 86-94 ◽  
Author(s):  
C. D. Camp ◽  
W. E. Peterman ◽  
J. R. Milanovich ◽  
T. Lamb ◽  
J. C. Maerz ◽  
...  
Keyword(s):  
United States ◽  
New Genus ◽  
Eastern United States ◽  
New Genus And Species ◽  
The South ◽  
South Eastern

scholarly journals Cotton thrips infestation predictor: a practical tool for predicting tobacco thrips ( Frankliniella fusca ) infestation of cotton seedlings in the south‐eastern United States

2020 ◽  
Vol 76 (12) ◽  
pp. 4018-4028 ◽  
Author(s):  
Thomas M Chappell ◽  
Rebecca V Ward ◽  
Kelley T DePolt ◽  
Phillip M Roberts ◽  
Jeremy K Greene ◽  
...  
Keyword(s):  
United States ◽  
Eastern United States ◽  
The South ◽  
South Eastern ◽  
Frankliniella Fusca ◽  
Tobacco Thrips ◽  
Practical Tool
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