How honeybees perceive communication dances, studied by means of a mechanical model Axel MichelsenBent Bach AndersenMartin Lindauer OriginalPaper Pages: 143 - 150
Effectiveness of the mating plug in Atrophaneura alcinous (Lepidoptera : Papilionidae) K. MatsumotoN. Suzuki OriginalPaper Pages: 157 - 163
Competition for a mate restricts mate search of female pied flycatchers Svein DaleHelge RindenTore Slagsvold OriginalPaper Pages: 165 - 176
Relationship between the position preference and nutritional state of individuals in schools of juvenile roach (Rutilus rutilus) Jens KrauseDirk BumannDietmar Todt OriginalPaper Pages: 177 - 180
The dance language of the honeybee mutant diminutive wings Wolfgang H. KirchnerKathrin Sommer OriginalPaper Pages: 181 - 184
The effect of intrauterine position on the survival, reproduction and home range size of female house mice (Mus musculus) William J. ZielinskiFrederick S. vom SaalJohn G. Vandenbergh OriginalPaper Pages: 185 - 191
Multiple paternity in a wild population of northern water snakes, Nerodia sipedon Frances E. BarryPatrick J. WeatherheadDavid P. Philipp OriginalPaper Pages: 193 - 199
Egg cannibalism by sticklebacks: spite or selfishness? Gerard J. FitzGerald OriginalPaper Pages: 201 - 206
Search tactics of a pause-travel predator: adaptive adjustments of perching times and move distances by hawk owls (Surnia ulula) Geir A. Sonerud OriginalPaper Pages: 207 - 217
Effects of interactions among genotypically diverse nestmates on task specialization by foraging honey bees (Apis mellifera) Nicholas W. CalderoneRobert E. Page Jr. OriginalPaper Pages: 219 - 226
The evolution of leks through female choice: differential clustering and space utilization in six sympatric manakins Marc Théry OriginalPaper Pages: 227 - 237
Behavioral resource depression and decaying perceived risk of predation in two species of coexisting gerbils Burt P. Kotler OriginalPaper Pages: 239 - 244
Blue eggs do not reduce nest predation in the song thrush, Turdus philomelos Frank Götmark OriginalPaper Pages: 245 - 252
Genetic relatedness of worker nestmates in Myrmica ruginodis (Hymenoptera : Formicidae) populations P. Seppii OriginalPaper Pages: 253 - 260
Sperm transfer, displacement and precedence in Ischnura graellsii (Odonata : Coenagrionidae) A. CorderosP.L. Miller OriginalPaper Pages: 261 - 267
Sexual exchange relationships in captive chimpanzees? Charlotte K. HemelrijkGerard J. van LaereJan A.R.A.M. van Hooff OriginalPaper Pages: 269 - 275
Experimental manipulation of mate choice by male katydids: the effect of female encounter rate Todd E. ShellyWinston J. Bailey OriginalPaper Pages: 277 - 282
Vigilance and foraging substrate: anti-predatory considerations in a non-standard environment Steven L. Lima OriginalPaper Pages: 283 - 289