2013: Five Years of Data
January to mid-March volunteer fieldwork continued on a weekly basis. The creation of invasive plant flash cards in 2013 proved to be very helpful for many volunteers not yet comfortable making a decision about which plants were native and which plants were invasive and needed to be removed. Several groups of volunteers participated in habitat restoration activity; including a large troop of Girl Scouts, and the 60th Annual Cherry Blossom Court of Honolulu.
Several large invasive sea grape trees along the Koko Head boundary of the upper Preserve were removed. This resulted in a great reduction of both leaf litter and ants commonly associated with these plants. Shearwaters nesting in the shade of the sea grape trees sometimes lost track of their eggs, which became buried in the leaf litter when the adult birds shuffled or dug amidst the thick, dead leaves. Ants can be bothersome or even harmful to ground nesting seabird adults and their eggs or chicks. Several artificial burrows were created using recycled roofing tiles and small rocks found on the Preserve.
Shown below as printed in ‘Elepaio, March/April 2014 74:2, p.5-6