Subject Index 



Acari 



abundance, 421 



biomass, 415-416 



density, 415 



distribution in soil, 419-420 



feeding habits, 436 

 Albedo, 46-47, 61, 65 

 Algae 



biomass, 463 



distribution, 256, 266-268, 

 271-272 



fungal parasites, 261 



nitrogen fixation, 234-235 



numbers, 263 



soil, 263 



species diversity, 263 

 Allocation 



biomass, 145 



carbohydrates, 142 



carbon compounds, 148-158 



Dupontia, 152, 154 



environmental influence, 155 



grazing, 177-181 



inflorescences, 140 



leaf and stem growth, 140 



nutrients, 142, 169-175 



patterns, 184 



photosynthate, 147 



reproduction, 175 



rhizome production, 140 



root production, 140 



see also Translocation 

 Animals 



Arctic Slope species, 6-7 

 Aquatic systems 



movement by nutrients, 481 

 Arctic Coastal Plain 



see Coastal Plain 

 Arctic foxes 



density, 365 



predators, 360-361, 365 



prey selection, 367 

 Arctic Front, 31, 34-35 

 Arctic Slope 



physiographic provinces, 1-2 



plant and animal species, 5-7 

 Atmospheric circulation, 31 



Bacteria, 333 



abundance on polygons, 421 



anaerobic, 258 



biomass distribution, 269-270 



decomposition, 473 



denitrification, 259 



distribution, 255-256, 268, 272 



growth, 299-302 



iron, 260 



microfloral, 289 



nitrogen-fixing, 258 



numbers, 257 



production, 280-281 



respiration, 299-302 



species diversity, 257, 288 



sulfur, 259 



utilization of substrate, 

 259-297 



see also Microbial activity 

 Barrow research area 



geographic description, 10-16 



research sites, 12-13 

 Biomass, 232 



allocation, 145 



belowground, 76-78 



carbon pool size, 458-459 



distribution, 195-199 



flux, 162-165 



microbial, 245 



rate of change, 158-159 



root, 147 



turnover rates, 193 



561 



