The majority of Hilgardia articles have been grouped into at least one of the following collections:

• Animal, Aquaculture and Veterinary Science 
• Botany and Plant Science 
• Ecology and Rangeland 
• Economics and Public Policy 
• Entomology 
• Forestry 
• Nutrition, Food Science and Food Safety 
• Plant Pathology 
• Soil, Air and Water Science 
• Wildlife 
• Wine and Grape 

Browse a collection by clicking on one of the links above.