Twenty-five years of sagebrush steppe plant community development following seed addition

  • Published source details Hoelzle T.B., Jonas J.L. & Paschke M.W. (2012) Twenty-five years of sagebrush steppe plant community development following seed addition. Journal of Applied Ecology, 49, 911-918.


This study is summarised as evidence for the following.

Action Category

Sow seeds

Action Link
Shrubland and Heathland Conservation
  1. Sow seeds

    A replicated, randomized, controlled study between 1984 and 2009 in a sagebrush steppe ecosystem in Colorado, USA (Hoelzle et al. 2012) found that sowing seeds of late successional shrubland plants produced a plant community which was similar to undisturbed shrublands after 25 years. Sowing seeds of late succession shrubland plants resulted in a plant community that was similar to undisturbed shrublands (no data presented). However, sowing seeds of early succession shrubland plants resulted in a plant community that resembled plots that had been left unseeded (results presented as model results). In 1984 four blocks consisting of six 500 m2 plots each were established. Within each block all vegetation and the top 5 cm of soil were removed. Plots were randomly assigned to be sown with late successional shrubland seeds, early successional shrubland seeds, or to be left unseeded. Adjacent to blocks a number of shrubland plots were left undisturbed.

    (Summarised by: Phil Martin)

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