Mokuauia Islet State Wildlife Sanctuary

Size:                                    12.5 Acres
Access:                                Restricted to areas below high water mark, Commercial activity prohibited
Seabird Species Present:    Uʻau Kani or Wedged-Tailed Shearwater (Puffinus pacificus), various common shorebird species
Other Notable Species:       ‘Opae ‘ula (Halocaridina rubra.)
Threats:                               Black rats (Rattus rattus), Tree heliotrope (Tournefortia argentea), sea grape (Coccoloba uvifera), Chinese Violet (Asystasia gangetica), ivy gourd (Coccinia grandis), various introduced grasses, Bidens spp., Ironwood (Casuarina equisetifolia).

Management Goals and Objectives:

  1. Continue to monitor and address rat populations.  Rats were eradicated in 2012, however follow up surveys must be done to stop new infestations.  Tracking tunnels and other survey methods will be deployed to monitor islet.
  2. Explore methods to eradicate Yellow Crazy Ant (Anoplolepis gracilipes) from the islet.  Populations have been identified, numbers have been tracked and several treatments of ant pesticides were deployed with little success. 
  3. Eradicate or control non-native weeds and establish native plants
  4. Eradicate ironwood and heliotrope trees.
  5. Manage recreational activities using signage, education and outreach.
  6. Survey and inventory nesting seabirds.  Survey plots have been established to estimate fledgling numbers
Seagrape Removal, Mokuauia
Nesting habitat and survey plots, Mokuauia
Summary of WTSH nesting 1995-2010, Mokuauia