A paper reviewing the impact of the loss of large predators and herbivores high in the food chain confirms that their decline has had cascading effects in marine, terrestrial and freshwater ecosystems throughout the world.
Graduate student Erica Spotswood used data from organisations across the United States and Canada to assess the risk factors which could increase rates of injury or mortality including bird size, age, frequency of capture and the role of predators.
Researchers found that across all eight counties studied, there was a positive correlation between water systems that served larger proportions of Latinos and increased nitrate levels in the water systems.
California agriculture reaps $937 million to $2.4 billion per year in economic value from wild, free-living bee species that serve the critical function of pollinating crops.
Graduate student Kathryn Fiorella of the Brashares Lab spent the summer of 2011 exploring links between human health and the environment in Western Kenya.