Exploration and exploitation of food sources by social insect colonies: a revision of the scout-recruit concept Jacobus Christiaan BiesmeijerHan de Vries Review Pages: 89 - 99
Competition and group size in Thomas’s langurs (Presbytis thomasi): the folivore paradox revisited R. SteenbeekCarel P. van Schaik Original Article Pages: 100 - 110
Fighting rules and rival recognition reduce costs of aggression in male lizards, Podarcis hispanica P. LópezJosé Martín Original Article Pages: 111 - 116
Birth season testosterone levels in male Verreaux’s sifaka, Propithecus verreauxi: insights into socio-demographic factors mediating seasonal testicular function D. K. BrockmanPatricia L. WhittenBenjamin Benander Original Article Pages: 117 - 127
High genetic relatedness among nestmate queens in the polygynous ponerine ant Gnamptogenys striatula in Brazil T. GiraudR. BlatrixP. Jaisson Original Article Pages: 128 - 134
Parasitoid learning during interactions with ants: how to deal with an aggressive antagonist Wolfgang Völkl Original Article Pages: 135 - 144
Multiple insemination increases reproductive success of female Montandon’s newt (Triturus montandoni, Caudata, Salamandridae) Artur OsikowskiJan Rafin´ski Original Article Pages: 145 - 149
Advertisement call duration indicates good genes for offspring feeding rate in gray tree frogs (Hyla versicolor) Grace V. DotyA. M. Welch Original Article Pages: 150 - 156
Effects of territory quality, food availability and sibling competition on the fledging success of oystercatchers (Haematopus ostralegus) D. HegMarco van der Velde Original Article Pages: 157 - 169
Begging calls and parental feeding decisions in tree swallows (Tachycineta bicolor) M. L. LeonardAndrew G. Horn Original Article Pages: 170 - 175
Mate choice games, context-dependent good genes, and genetic cycles in the side-blotched lizard, Uta stansburiana S. H. AlonzoBarry Sinervo Original Article Pages: 176 - 186
Predatory behavior of crowned hawk-eagles (Stephanoaetus coronatus) in Kibale National Park, Uganda J.C. MitaniW.J. SandersT.L. Windfelder Original Article Pages: 187 - 195
Function of the mating plug in Drosophila hibisci Bock M. PolakLarry L. WolfJ. S. F. Barker Original Article Pages: 196 - 205
Brood pheromone modulates honeybee (Apis mellifera L.) sucrose response thresholds T. PankiwRobert E. Page Jr Original Article Pages: 206 - 213
Social regulation of ovary activation in ’anarchistic’ honey-bees (Apis mellifera) A. B. BarronBenjamin P. Oldroyd Original Article Pages: 214 - 219
A simple spatially explicit ideal-free distribution: a model and an experiment D. W. StephensJ. R. Stevens Original Article Pages: 220 - 234