Each islet was surveyed identically. b. Walk-through surveillance with insect nets and collecting equipment was conducted. breeding sites and harborages were sampled. A111 possible Light traps were set out in areas where wind shelter was provided to sample nocturnal activity. Rodent surveillance was visual and with traps. Have-a-Heart traps were set in association with burrows, nests, high activity areas and harborage. ¢. : , oo Laboratory areas provided by Mid Pacific Marine Laboratory (MPML) and equipment indigenous to the survey teams provided ample work and identification requirements. Insect identifications were made micro- scopically with the use of appropriate keys. The following islets were surveyed: (Fred) Mcdren (Walt) 3) Jedrol” (Rex) 4) Japtan (David) 5) Ananij ~Runit S * re | 2) 6) (Bruce) - (Yvonne) 7) Billae (Wilma) 8) Alembel 9) Lojwa 10} <Aomon 11) Aej (Olive) ~ 12) Enjebi (Janet) . (Vera) _ (Ursula) © (Sally) RESULTS; a. The predominanat problem on the atoll is the large population of rats. Two species of rats were noted. 1) Rattus rattus (roof rat) is 2) 2 sew nee Rattus exculaus . ers ayant + ee . sageae : oe ree + PRR ania ae IE ne cate MiliML, Blin oka rtunale & (Polynesian rat) > . = ee ne Bad la. OE ot os . en) mre , aeBe ee!‘ ee eee sar = oe - 3, Enewetak cee ene An 1) [ d.