SUBJECT INDEX 



Names of authors are to be found in die Bibliography and Author Index, and names of per- 

 sons mc uded here are only for references not specifically associated with bibliographic tifles 

 Itahc fohos indicate illustrations. B f ^=>- 



Abyssal animals, 38, 39, 40 



stratum, 137, 542 

 Abyssalbenthic zone, 459 

 Acanthocephalans, 702 

 Acclimatization, 19, 104, 184 



630 

 Acid normality, pH and, 172 



tolerance, 173 

 Action of environment on or- 

 ganisms, 348, 695, 697, 

 729 

 wind, routine results, 147 

 Activation, gonadal, 121 

 Activity, animal, 546, 550, 

 551, 552, 558-562 

 eflFect of barometric pres- 

 sure on, 136 

 of temperature on, 98 

 aperiodic, 558 

 arrhythmic, 546, 558, 559- 



562 

 auroral, 546 

 breeding, 644 

 crepuscular, 546 

 diurnal, 546, 618, 665 

 endogenous, 558 

 exogenous, 558 

 habitual, 558 

 inherent, 558 

 nocturnal, 540, 546, 665 

 periodic, 558 



seasonal, indicating latitudi- 

 nal origin, 103, 631 

 of spermatozoa, 395 

 vesperal, 546 

 Adams, C. C, 24 

 Adanson, 18 



Adaptabihty, 630, 639. See 

 also Behavior, conditioned; 

 Capacity; Plasticity. 

 Adaptation(s), 630-640, 652, 

 666, 678, 686, 689, 695, 

 729. See also Radiation, 

 adaptive; Caenogenesis; 

 Deuterogenesis; Evolu- 

 tion, convergent; Selec- 

 tion. 



Adaptation ( s ) , aerial, 696. 

 See also Wings. 

 aquatic, 156, 157, 642, 662, 



671, 679, 682, 696 

 arboreal, 668 

 asexual, 628 

 behavior, 689 

 to cold, 101, 645, 668 

 community, 546 

 complexity in, 666, 670, 



671 

 defensive, 705, 726, 727 



of termites, 692 

 to desert environment, 187, 

 553, 590, 634, 652, 666, 

 668, 669, 671, 692, 705. 

 See also Xerocoles. 

 digging, 608, 665, 668 

 ecological, 598 

 to environment, 76, 599, 



685 

 evolution of, 641, 647, 710 

 feeding, 238, 241, 611, 634, 

 635, 662, 664, 665, 666, 

 668, 685 

 fossorial, 608 

 general, 634, 662, 664, 665, 



698 

 to gravity, 133 

 habitat isolation and, 616 

 to heat, 104 



Iiost-parasite, 708, 709, 720 

 of insects to flowers, 715 

 interspecies, 697, 728 

 jumping, 665, 666 

 to moisture, 184-189 

 mutations and, 600 

 osmotic, 168fi^. 

 perfection of, 632, 634, 640 

 physiological, 689 

 in population systems, 692 

 relict. See Vestigial charac- 

 ters. 

 spcciahzed, 634, 662 664 



665 

 to soil, 226 

 to stream life, 156 

 swimming, 665, 675 

 803 



Adaptation(s), to substrate, 

 163, 164, 180, 637, 722 

 terrestrial, 632, 642, 668, 

 696. See also Dispersion, 

 Locomotion. 

 Adjustment. See Adaptation. 

 Adsorption, 176, 177 

 Aerenchyma, 451 

 Aestivation, 104, 105, 185, 

 439, 536, 537, 539. See also 

 Dormancy. 

 Agassiz, Louis, 5, 33 

 Age. See Longevity, Senes- 

 cence, Time. 

 distribution in populations, 

 281, 282, 284, 293 

 reproduction and, 285 

 Age-and-area hypothesis, 215 

 Aggregations, animal, 59, 393- 

 419, 644, 645, 657, 

 663, 664, 672, 683, 

 686, 687, 691, 694. 

 See also Group; Popu- 

 lation; Population, sub- 

 social; Units. 

 formation, 394 

 intraspecies, 664 



sex and, 408 



winter, 97, 104, 106, 398, 



487, 537, 538. See also 



Hibernation. 



Agriculture, 68, 724. See also 



Domestication; Fungus 



growers; Plants, cultivated. 



Agromyzidae, 490, 491. See 



also Flies. 

 Agronomists, 68 

 Air, above canopy, 481 

 currents, 140-149 

 evaporating power, 19, 23, 



181, 182, 183, 206 

 mass analysis, 144 

 transport. See Transport, 

 aerial. 

 Albertus Magnus, 16 

 Aldrovandi, 16 

 Algae, 246, 449, 501-504, 547 

 671, 711, 712, 713 



