Domestic ruminants are used to exploit many vegetation resources that would otherwise be unproductive. For maximal effectiveness, there is a need to understand underlying mechanisms controlling animal performance, including seasonal variations in appetite and food intake. Potentially useful experimental approaches, recent findings and aspects for future study are discussed. Seasonal variation i...

Monthly price and stock data are used to test the influence of Philippine government buffer-stock programs on seasonal and annual variability of producer and consumer rice prices. The period examined is 1974-1990. NFA stock changes are shown to have had some stabilizing influence on seasonal and annual price changes, but the magnitude is small and not statistically significant.

This study was conducted to characterize periphyton biomass, productivity, and algal species composition, and to examine how these parameters changed seasonally over the course of two years in Walker Branch, a temperate forest stream. Seasonal variations in several factors potentially controlling periphyton (irradiance, streamwater nutrient concentrations, temperature, and the incidence of seve...

Abstract Atmospheric warming results in an intensification of annual precipitation over the globe but large uncertainties remain regionally and at seasonal scales, especially for extremes. Using 29 models from Sixth Phase Coupled Model Intercomparison Project (CMIP6), we investigate future changes extreme (under scenario SSP5‐8.5) how it compares to mean precipitation. Over land, find a strong ...