Comparative study of density regulation in confined populations of four species of rodents W. Z. Lidicker Jr. OriginalPaper Pages: 57 - 72
Calculation of area of animal activity by use of median axes and centers in scatter diagrams Carl O. Mohr OriginalPaper Pages: 73 - 86
Population studies based on relative abundance of five different life history stages of Ayu,Plecoglossus altivelis (Pisces, Plecoglossidae), in Lake Biwa Taizo Miura OriginalPaper Pages: 87 - 98
Spatial distribution of three plant bugs in relation to their behavior Fusao NakasujiNobuhiko HokyoKeizi Kiritani OriginalPaper Pages: 99 - 108
Influence of parental density on the distribution pattern of eggs in the common cabbage butterfly,Pieris rapae crucivora Shiro Kobayashi OriginalPaper Pages: 109 - 117
A revision of the methods for estimating population values of the index of dispersion in theIδ-method Masaaki Morisita BriefCommunication Pages: 126 - 128