The EBIPM Model

The EBIPM Model
(To print or enlarge, click on the model to view the PDF)

What is EBIPM?  

Over many decades, rangeland managers have focused weed management on controlling weeds with little regard to either the existing or the resulting plant community.  The approach is simplistic in that only the symptoms (weeds) are treated without regard to why the weeds are there to begin with.  Future weed management must be based on our understanding of the biology and ecology of rangeland ecosystems.

Sustainable invasive plant management requires restoring diverse plant communities that function in maintaining ecological processes.  In order to achieve diverse, desired plant communities invasive plant management must modify the processes and mechanisms directing plant community dynamics and structure.

EBIPM – the acronym for Ecologically-based invasive plant management is a process based model for weed managers to implement site specific integrated weed management strategies to address ecological processes.  EBIPM combines state and transition models and successional management models to make the best decisions for a given areas.  It can be used for any weed species but for this area-wide project EBIPM will be demonstrated for cheatgrass and medusahead.

The EBIPM model was developed based on the 3 general causes of succession:

  • Site Availability –In order for succession to occur, a niche must be available for desired species and unavailable for undesirable ones.
  • Species Availability – Once a site is available for desired species, they must be occupied before the weeds establish.  Processes that must be exploited include seed dispersal, and vegetative reproduction.
  • Species Performance –When sites for desired species are created and they become established factors that favor the desired species must be considered, such as grazing, disease, resource availability, etc.