Acknowledgments 
The field work was performed with enthusi- 
asm and diligence by Mark E. Deyrup in 1971 
and Craig Hallingsworth in 1972. The micro- 
invertebrate sampling and identifications were 
the responsibility of G. Keith Douce (Acarina), 
Maggie E. Skeel (Collembola), and Edward A. 
Morgan (Enchytraeidae). 
This project was primarily supported by the 
National Science Foundation grant GV-29342 to 
the University of Alaska, under the auspices of 
The U.S. Tundra Biome Program. Field logistics 
were provided through the Prudhoe Bay Envir- 
onmental Subcommittee’s support through the 
Tundra Biome Center. 
References 
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