Past
Past
Irene’s long-term study of the chalcedon checkerspot butterfly (Euphydryas chalcedona) began in 1968, paralleling the, then, 8-year-long study of the Edith checkerspot butterfly (Euphydryas editha) by Paul Ehrlich and his colleagues, which continued until 1998 when E.
Past
Ants live in complex societies. The behavior of an ant colony, such as foraging for food, emerges from the actions of the workers comprising it. Colony behavior arises from local rules that each individual ant follows with no single individual ordering others and no global control.
Past
Serpentine soils, characterized by low calcium to magnesium ratios and poor water holding capacity, are prevalent in California. These specialized habitats play an important role in the promotion of biodiversity and harbor many serpentine endemics.
Past
In California, Lyme disease is transmitted to humans by the bite of Western black-legged ticks (Ixodes pacificus) infected with the bacterium Borrelia burgdorferi. Several factors make Lyme disease a challenge for visitors to natural areas where the tick and bacterium are found.
Past
Pathogens are very common in natural plant communities, yet in California grasslands we know little about which pathogens infect native and exotic grasses.