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JACKSON, VESSEY, AND BASTIAN 



Fig. 1 The Polynesian rat. Rattus exulans, and the roof rat, Rattus rattus, are distributed allopatrically at Enewetalt; a. 

 The Polynesian rat is found in more densely vegetated habitats and is particularly abundant on the larger islands where 

 coconut trees were planted for copra production. (Photo by William B. Jackson of Japtan Island in 1971); b. The roof rat 

 is found in more disturbed open habitats, particularly the northern islands of the atoll. (Photo by William B. Jackson of 

 Enjebi Island, looking to the southeast, taken in 1967). The remains of the former Japanese airstrip is visible in the fore- 

 ground, and the nuclear test building, now demolished, is seen in the middle distance. 



