Archive Nut, Prune and Olive Programs

The UC Hopland Research and Extension Center ranches a flock of 340 western whiteface ewes for rangeland research and education programs. Come meet the flock and learn key skills associated with running your own flock, or working with sheep.

Soil food webs contain complex mixtures of organisms whose interactions mediate the flow of carbon (C) through ecosystems.

Deer populations in California have exhibited marked declines in the last two decades, with estimates of population decline as great as 50% since 1991.

Human-derived nitrogen (N) flows into natural systems via agriculture, fossil fuel combustion, and other actions associated with industrialization, are recognized among the most significant and widespread threats to plant community diversity and stability.

We asked an author cited in this article important questions provided by readers. Check out our short interview with Ph.D.

Supporting our local communities and citizens across California is at the heart of everything we do at HREC, especially our research efforts.

California is the most biodiverse state in the country and is a global hotspot for a diversity of plants and trees, wildlife, soil types, ecosystems, and more. These unique natural resources provide intellectual, psychological, medical, financial, emotional, and ecological benefits at every scale.

Increasing preparedness to extreme weather and climate change is not just a topic of scientific interest in California, it's a matter of survival.

Pierce's disease is an economically important vector-borne disease caused by the pathogenic plant bacterium, X. fastidiosa. As the bacteria grow, the flow of water inside the plant is blocked, causing it to die.

The Nutrient Network (NutNet.org) is a global collaboration of over 300 scientists from over 160 sites in North and South America, Europe, Australia, Asia, and Africa.