Subject Index 



377 



circumplex, 155 

 formulae, 128, 1-13 

 S'-^\ 143 

 S^^\ 143 

 SjA, 128 

 Si^^', 128 

 S^'^), 143 

 S('), 143 

 Responsive state, 140 

 Rhesus monkey (see also monkey). 267 

 hj'drocortisone, 236 

 responses to sociopsychologic factors, 



269 

 thyroid activity, 236 

 Rodents (see also specific categories), 212 

 Runaways 



underground, 76 



Salivary glands, 260 



Sanctions, 151, 163 



Scent, 38 



Schaefer's autonomy, 143 



Schaefer's control, 143 



Schaefer's hostility-rejection, 128, 143 



Schaefer's love-acceptance, 128, 143 



Serotonin, 216 



Sex accessories, 238 



involution, 218 

 Sex steroids, 206, 217 

 Sheep, 194 

 Shock, 192, 243, 244 

 "Shock disease," 226, 280, 320 

 Shrews (see also Sorex and Blarina), 26, 27, 

 75, 193, 197 



long-tailed, 246 



population, 305 



short-tailed, 305 

 Sight, 38 

 Sigmodon {see also Cotton rat), 323 



litter size, 317 



relationships Ix^twecn })o})ulation den- 

 sity and reproduction, 310 

 Sign, 47 

 Sign field, 49 

 Signal, 53, 57, 167 



detection, 41 



inhibitory, 68 



intensity, 48, 49 



learning of, 39, 50 



neural, 78 



noxious, 78 



simultaneous, 48 



sound, 41 

 Signal field, 47, 49 

 Sika deer, 323 



mass mortality, 320 



population density, 306 

 Size 



basic group, 86 



effect on response-evoking capacity, 130 

 Slow loris, 196 



Snowshoe hare (see also hare), 253 

 Social behavior, 128 



more effective, 136 

 Social dominance, 74 



adrenal activity, 267 



changing, 89 

 Social factors 



adrenocortical functions, 236 



interspecific, 77 



reproductive functions, 263 

 Social groups 



budding off, 121 

 Social hierarchy 



evolution, 70 

 Social interaction, 133 



basic processes, 116 



consequences and examples, 148 



frequency of satisfactory, 117 



frustration from, 110 



as a function of density, 117 



heightened frequency, 95 



intensity, 152 



model, 101 



optimum satisfaction, 118 



and refractory period, 117 



satisfaction from, 110 



withdrawal from, 173 

 Social phenomena, 3 

 Social pressure 



endocrine responses, 263 

 Social rank, 64 

 Social relations 



instability, 67 

 Social response 



blocking, 104 



mechanism, 104 

 Social subordination 



interspecific, 67 



