Positive effects of native shrubs on Bromus tectorum demography

There is increasing recognition that overall interactions among plant species are often the net result of both positive and negative effects. However, the positive influence of other plants has rarely been examined using detailed demographic methods, which are useful for partitioning net effects at the population level into positive and/or negative effects on individual vital rates. This study examines the influence of microhabitats created by the native shrubs Artemisia tridentata and Purshia tridentata on the demography of the invasive annual grass Bromus tectorum in the Great Basin Desert, California, USA. Shrub understory environments differed significantly from intershrub space and were characterized by higher...

Categories: Publication; Types: Citation, Journal Citation; Tags: Artemisia tridentata, Bromus tectorum, California, Ecology, Great Basin Desert, All tags... LTRE, Purshia tridentata, facilitation, invasive species, life table response experiment, loop analysis, periodic matrix models, positive interactions, Fewer tags