Geographic patterns of genetic variation are shaped by multiple evolutionary processes, including genetic drift, migration and natural selection. Switchgrass (Panicum virgatum L.) has strong genetic and adaptive differentiation despite life history characteristics that promote high levels of gene flow and can homogenize intraspecific differences, such as wind-pollination and self-incompatibilit...

We measured water-influx rate during the hot summer in free-ranging adult Arabian oryxes (Oryx leucoryx) in Mahazat as-Sayd, a 2,244-km2 protected area in west-central Saudi Arabia. Oryxes obtained 2,294 ml/day of water in their food and from oxidative water, the latter amounting to 14.2% of total water influx. For ungulates living in hot environments, we constructed an allometric curve: log(wa...

Platygaster chilophagae, new species, is described from specimens reared from larvae of Chilophaga virgati Gagné collected and reared in eastern South Dakota. The host larva feeds on the basal meristematic tissues of the inflorescence of Panicum virgatum L. This new species seems to lack immediate affinities with any described Platygaster species in its combination of characteristics, and is co...

 Assessing Bioretention Cell Function in a Midwest Continental Climate This study examined the performance of bioretention cells with five plant species: fragrant sumac (Rhus aromatica), yellow twig dogwood (Cornus stolonifera), buffalo grass (Buchloe dactyloides), switchgrass (Panicum virgatum), and daylily (Hemerocallis), and an unplanted control. Preliminary results indicate that switchgras...

The Inner Asian Mountain Corridor (IAMC) has been identified as a major pathway for the westward dispersal of millet from Northern China, where it was initially cultivated. Cross-disciplinary investigations are necessary to distinguish cultivated taxa their wild relatives and clarify social context underlying adoption in novel environments. Despite ambiguity distinguishing Setaria italica Panic...

A comparative archaeobotanical analysis of the plant remains from the Early Roman incineration graves in Ilok and Sćitarjevo shows the existence of a complex burial ritual, but at the same time enables a better understanding of the agriculture and trade of the 1st/early 2nd century AD in southern Pannonia. Most of the cereals found (Hordeum vulgare, Panicum miliaceum, Triticum monococcum, T. di...

Leaf CO(2) compensation points and stable hydrogen, oxygen and carbon isotope ratios were determined for Panicum species including C(3)/C(4) intermediate photosynthesis plants, hybrids between C(3)/C(4) intermediates and C(3) plants, C(3) and C(4) plants in the Panicum genus as well as several other C(3) and C(4) plants. C(3) plants had the highest compensation points, followed by hybrids, C(3)...