in order to improve the knowledge of the caelifera species of north eastern iran, faunistic investigations on grasshoppers of this region were carried out during 2013-2014. collected specimens as well as deposited specimens in insect museum of ferdowsi university of mashhad were examined, in detail. totally 19 species belonging to 17 genera, 9 subfamilies and 3 families were collected and deter...

Pasture and grazing land in the southern central Great Plains is being invaded by woody species, especially eastern redcedar. As a result of plant encroachment, cattle production on native rangeland becoming less profitable because stocking rates must be decreased. Eastern redcedar encroachment can controlled management, herbicide use, prescribed fire, mechanical control mixed species grazing. ...

the “Three-River Headwaters” region (TRHR) rangeland ecosystem is extremely sensitive and fragile, and in recent years has undergone continuous degradation. The vast area and severe nature conditions inhibit data acquisition and field experiments, resulting in different understandings about the spatial characteristics and dynamics of rangeland degradation in the region. Therefore, reliable moni...

We examined changes in rangeland health in the semi-arid woodlands of eastern Australia at fixed sites between 1989 and 1999. Over the 11-year period there were significant declines in the quality of the vegetation, and changes in plant species were driven largely by seasonality, and to a lesser extent, amount of rainfall. Three indices of rangelands health (composition, function and stability)...

Rangelands are the most common form of terrain WE PROPOSE A PARADIGM THAT in both the United States (where it accounts for 61% of all land surface) and the world (70% of all land surface). ENHANCES HETEROGENEITY Rangelands consist primarily of native plant communities managed, typically, for livestock production (Holechek et al. INSTEAD OF HOMOGENEITY TO PROMOTE 1998). Because they can embrace ...