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Publications

Publications from USGS science centers throughout the Southeast Region.

Filter Total Items: 10361

The reproductive biology of Magnolia Grandiflora The reproductive biology of Magnolia Grandiflora

No abstract available
Authors
Larry K. Allain, Michael S. Zavada, Douglas G. Matthews

Interaction of soil moisture and seedling shelters on water relations of baldcypress seedlings Interaction of soil moisture and seedling shelters on water relations of baldcypress seedlings

Stomata1 conductance, transpiration, and leaf water potential were measured during the 1996 growing season on baldcypress (Taxodium disfichum (L.) Rich.) seedlings. Seedlings were hand-planted from 1-O bareroot stock in mesic and permanently Rooded soil conditions. One-half of all seedlings were fitted with 122-cm tall polyethylene tree shelters, Seedlings were planted 1 year before the...
Authors
Ty Swirin, Hans Williams, Bob Keeland

Mississippi Basin Carbon Project; upland soil database for sites in Yazoo Basin, northern Mississippi Mississippi Basin Carbon Project; upland soil database for sites in Yazoo Basin, northern Mississippi

The conversion of land from its native state to an agricultural use commonly results in a significant loss of soil carbon (Mann, 1985; Davidson and Ackerman, 1993). Globally, this loss is estimated to account for as much as 1/3 of the net CO2 emissions for the period of 1850 to 1980 (Houghton et al, 1983). Roughly 20 to 40 percent of original soil carbon is estimated to be lost as CO2 as...
Authors
J.W. Harden, T. L. Fries, T.G. Huntington

Discovery of a second population of white-collared seedeaters, Sporophila torqueola (Passeriformes: emberizidae) along the Rio Grande of Texas Discovery of a second population of white-collared seedeaters, Sporophila torqueola (Passeriformes: emberizidae) along the Rio Grande of Texas

The range of the white-collared seedeater (Sporophila torqueola), a tropical grassland species, extends from Central America northward along both coasts of Mexico (Eitniear, 1997), including Tamaulipas and Nuevo Leon (Howell and Webb, 1995). White-collared seedeaters historically occurred commonly in extreme southern Texas (Oberholser, 1974; Rappole and Blacklock, 1994). However, since...
Authors
Marc C. Woodin, Mary K. Skoruppa, Gene W. Blacklock, Graham C. Hickman
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