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Widespread loss of management (irrigation, weeding, planting, fertilizing) occurred when people were forced to leave their homes, driving an increase in post-recession plant species richness and community homogeneity as abandoned yards were taken over by weedy annual species.  

Plants at the Tres Rios constructed wastewater treatment wetland were found to be highly productive, transpiring large volumes of water, particularly in the hot, dry summer. A plant driven “biological tide” brings new water and nutrients into the marshes to replace these transpiration losses, making a treatment wetland more effective than if it were located… Read more »

An experiment that manipulated food resources and predation showed that different factors regulate plant-associated arthropod communities in desert and urban habitats. Bottom up factors were most influential in desert habitats, while urban arthropods responded to a complex set of relationships among climate, plant growth, and predation. Long term research at 12 riparian sites showed that… Read more »