Big Gully Creek Sanctuary

Surface Cover Spectra of the Big Pine Creek Watershed

This paper presents a set of spectral reflectance data of numerous surface cover types of the Big Pine Creek watershed in California’s Eastern Sierra Nevada Mountains. Ground cover vegetative types include several samples of deciduous broad leaf and narrow leaf trees, needle leaf conifers, sages, and needle leaf and broad leaf shrubs. In addition, several litter samples as well as soil and rock...

Bee sanctuary

The mysterious disappearance of entire bee colonies, known as colony collapse disorder or CCD, has mystified researchers for a couple of years now (see Curr. Biol. 17, R389). It was first observed in the US, where highly industrialised bee-keeping practices mean that colonies are shipped across the continent to work large areas of a single crop. But whether this stress or other factors are resp...

Gully Erosion after Wildfire

Predicting runoff and erosion from watersheds burned by wildfires requires an understanding of the spatial structure of both hillslope and channel drainage networks. We investigate the small-scale and large-scale structures of drainage networks using field studies and computer analysis of 30-m digital elevation model. Topologic variables were derived from a composite 30-m DEM, which included 14...

Food Habits of Largemouth Bass (Micropterus salmoides) at Big Creek Lake

Gully Formation on Mars and Earth: the Transition from Glacial Activity to Gully Depositional Phases

Introduction: The discovery of gullies on Mars [1,2] resulted in a wide variety of proposed candidate mechanisms for formation but ensuing analyses have shown very strong latitude and orientation dependencies on their distributions [3-6]. These constraints have been interpreted to require: 1) a volatile on or near the surface as a source of liquid water, and 2) insolation and slope orientation ...