English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

Chart quadrat records periodically taken at the Desert Experimental Range in southwestern Utah over 34 years were examined for evidence of establishment and survival of eight major perennial plant species. A set of seedlings that became established in 1935-37 were followed until 1968-70. Relatively few individuals have died since the second year after establishment. There were few significant differences between the survival of plants in the grazed versus ungrazed plots. West et al. (1979) recently reviewed the relevant literature and noted the dearth of demographic data dealing with perennial plants in arid and semiarid environments. Further comparative studies describing survivorship curves and discussion of how mortality and longevity vary with environmental perturbations seem appropriate. Unfortunately, there exist few sources of longterm data complete enough to perform analyses like those West et al. (1979) did on 2 1 + years of pantograph records taken on the U.S. Sheep Station in southeastern Idaho. There exist, however, at other research stations periodic pantograph or chart quadrat records and stand maps that could be of some use in exploring these issues. The following is an attempt to use such data from the Desert Experiment Range (DER) in southwestern Utah.

Survival Patterns of Major Perennials in Salt Desert Shrub Communities of Southwestern Utah