Recovery Plan for the Nichol Turk's Head Cactus (Echinocactus horizonthalonius Lemaire, var. nicholii L. Benson)

摘要

Goal: To remove (Echinocactus horizontha-lonius var. nicholii) from the federal list of endagered and threatened species by managing and protectin the essential habitat of the existing populations and by decreasing collection pressure. Recovery Criteria: The criteria for dowlisitng of the Nichol Turk's head cactus to threatened status is permanent protection of 75 percent of the known habitat according to the steps outlined in this plan. The downlisting criteria wil be reevaluated the adequacy upon attianment or when data indicates that the criterion can be revised. The criteria for delisting cannot be established now. It is only after a complete census of plants within the known habitat and other necessary studies are conducted that quantification of criteria for delisting can be established. Recovery Actions: Major steps needed to meet the recovery criteria include: developing and implementing habitat management plans that alleviate the threats of mining, ORV use and collecting; enforcing existing regulations on collecting, trade and mining; searching for new populations of (E. horizonthalonius; var. nicholii); monitoring and studying existing populations; and developing a cactus trade management plan for all cacti.