Animals achieve camouflage through a variety of mechanisms, of which background matching and disruptive coloration are likely the most common. Although many studies have investigated camouflage mechanisms using artificial stimuli and in lab experiments, less work has addressed camouflage in the wild. Here we examine egg camouflage in clutches laid by ground-nesting Snowy Plovers Charadrius nivo...

Soil erosion has been recognized as one of the major threats to our environment and water quality worldwide, especially in China. To mitigate nonpoint source water quality problems caused by soil erosion, best management practices (BMPs) and/or conservation programs have been adopted. Watershed models, such as the Annualized Agricultural Non-Point Source Pollutant Loading model (AnnAGNPS), have...

Call synchrony has been reported for the snowy tree cricket (Oecanthusfultow), but the degree to which it occurs in natural interactions has not been previously investigated. I recorded acoustic interactions among ten pairs of male snowy tree crickets to determine the degree to which call synchrony occurs. High levels of call synchrony (percent of calls that temporally overlapped another call) ...

An environmental water releases to the Snowy River was made in October 2011 (12,000 ML/day) as part of the Snowy River Increased Flows Program. The effects on the inlet entrance morphology and tidal response were measured on four field trips for each release to cover the flow peak and recovery. Water level recorders were deployed in the principal channels over the period of the releases and for...

Microbial Source Tracking within your watershed can provide important information regarding the Point Source (structures, pipes, sewage outfalls) and Non-Point Source (runoff, animals) contamination present in your service area. Determination of human, ruminant and other fecal inputs into surface source or ground waters can provide a scientific basis for watershed management decisions and can a...

this article studies the effects of weather on road accidents in saqqez - sanandaj road. saqqez- sanandaj road’s length is 187 km and it is one of the main hazardous roads of the area. in this study, the distribution map of road accidents and the probability of accidents were prepared under every climatic condition (i.e., snowy, frozen, rainy, foggy, and sunny). a database of road accidents o...