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Screening of a small library of natural product extracts derived from endophytic fungi of the Sonoran desert plants in a cell… Expand Trees may survive fire through persistence of above or below ground structures. Investment in bark aids in above-ground survival… Expand We explored whether extracts of trees frequently found associated with amphibian habitats in Australia and Arizona, USA, may be… Expand In southeastern Arizona, Prosopis juliflora (Swartz) DC. and Quercus emoryi Torr. are the dominant woody species at grassland… Expand Ten trees (5–70 m2 canopy area) were selected to determine effects of tree size (crown area) on herbaceous species composition… Expand Predicted changes in regional precipitation patterns and soil moisture caused by anthropogenic trace gas emissions may affect the… Expand Abstract Stable isotope analysis was used to determine sources of water used by coexisting trees and grasses in a temperate… Expand This study was undertaken to extend our knowledge of nutrient availability in soils of the Arizona chaparral. Our objective was… Expand The paper describes the microclimate in a mesic habitat of Armadillidium vulgare, and a xeric habitat of Venezillo arizonicus… Expand