506 Subject Index 



interstitial water, 84 

 mobilization, 138 

 relation to P, 121, 137, 139 

 sediment enrichment, 138 

 sorbs P, 11, 121 

 source in plant zone, 138 

 Isopoda, 299 



Lakes 



northern Alaska, 23, 24 



origin, 24 



P concentration, 119 

 Leaching 



Carex, 82, 359 



lemming feces, 82 



potassium, 82 

 Lead, 86 



Leaves, color defined, 153 

 Lemmings, 39 



affect plants, 38-39, 234 



chemisty of feces, 362 



control of cycles, 39, 40 



nutrient effects, 45 

 Lepidurus, 132, 221, 298, 302, 

 323, 371 



P excretion, 133 



sediment respiration effects, 

 371 

 Libertia, 300-302, 403 

 Lichens, 38 

 Light 



extinction in sediments, 71, 

 198 



extinction in water, 70 



half-saturation, 205-206 



in model, 414 



inhibition in algae, 208 



limits plants, 235 



photosynthesis effects, 205 

 Litter, from plants, 153 

 Low temperature, biological 

 effects, 14 



Magnesium, 80 



Carex, 362 



interstitial water, 84 

 Manganese, 85 



Carex, 362 

 Marsh, surrounds ponds, 51 

 Megaloptera, 14, 299 

 Meltwater 



bacteria concentration, 344 



DOC, 152 



N concentration, 107 



POC, 164 

 Metazoans, adaptations to 



arctic, 14, 15 

 Methane, 351, 353 

 MichaeHs-Menten functions, in 



model, 429 

 Microbenthos 



carbon flux, 383 



distribution and composition, 

 373 



feeding rates, 379 



grazing, 352, 375 



particle size effects, 373 



predation control, 382 



respiration, 352 

 Microbes, control soil P, 239 

 Microcosm experiment, 383 

 Micrometazoa, 9 

 Micrometazoans, grazers, 219 

 Midges 



adaptations to Arctic, 309, 

 311, 317 



bird predation, 317 



cohort distinction, 309 



control of production, 

 321-322 



determination of species, 306 



detritivores, 315, 319 



emergence, 307-308 



feeding rate, 318 



food availability, 322 



habitats, 303 



life cycle, 309-311 



living food limitation, 318 



