The encroachment of Eastern redcedar (ERC) (Juniperus virginiana L.) onto Great Plains prairies has become a serious threat to ecosystem functioning and grazing productivity. uncontrolled spread this invasive tree species been called »green glacier« converting grasslands into closed canopy woodlands. A pasture cutting robot was developed using tracked Autonomous Ground Vehicle (AGV) equipped wi...

BACKGROUND Medicinal plants are considered new resources for producing agents that could act as alternatives to antibiotics in the treatment of antibiotic-resistant bacteria. The aim of this study was to evaluate the antibacterial activity of 28 plant extracts and oils against four Gram-negative bacterial species. METHODS Experimental, in vitro, evaluation of the activities of 28 plant extrac...

The relict population of Neotoma fl oridana occurring along the Niobrara River in north-central Nebraska was found to have a diet composed of 38 types of food items of which 37 types were plants. Unique features of the summer diet of this population were a higher than expected use of red cedar (Juniperus virginiana) and invertebrates as food items.

In this paper, three new Phyllocoptini eriophyoid mite species from Yunnan Province, China are described and illustrated: Proiectus rodgeseta sp. nov. on Pinus armandii Franch. (Pinaceae), Proiectus granularpro sp. nov. on Pinus tabuliformis Carr. (Pinaceae) and Phyllocoptrutajuniperiana sp. nov. on Juniperus chinensis Linn. (Cupressaceae). All are vagrants causing no apparent damage to their h...

Abstract Snow cover in high-latitude and high-altitude regions has strong effects on the Earth’s climate, environmental processes socio-economic activities. Over last 50 years, Alps experienced a 5.6% reduction per decade snow duration, which already affects region where economy culture revolve, to large extent, around winter. Here we present evidence from 572 ring-width series extracted prostr...