Traplining by purple-throated carib hummingbirds: behavioral responses to competition and nectar availability Ethan J. TemelesKathryn C. ShawSarah E. Sander Original Article 18 August 2006 Pages: 163 - 172
Determinants of vigilance behavior in the ring-tailed coati (Nasua nasua): the importance of within-group spatial position Yamil Di BlancoBen T. Hirsch Original Article 13 September 2006 Pages: 173 - 182
Social relationships among adult female baboons (papio cynocephalus) I. Variation in the strength of social bonds Joan B. SilkJeanne AltmannSusan C. Alberts Original Article 31 August 2006 Pages: 183 - 195
Social relationships among adult female baboons (Papio cynocephalus) II. Variation in the quality and stability of social bonds Joan B. SilkSusan C. AlbertsJeanne Altmann Original Article 13 September 2006 Pages: 197 - 204
Paternal kin bias in the agonistic interventions of adult female rhesus macaques (Macaca mulatta) Anja WiddigWolf Jürgen StreichMichael Krawczak Original Article 06 October 2006 Pages: 205 - 214
The importance of experience in the interpretation of conspecific chemical signals Nehal SalehLars Chittka Original Article 05 September 2006 Pages: 215 - 220
Dual function of allopreening in the cooperatively breeding green woodhoopoe, Phoeniculus purpureus Andrew N. RadfordMorné A. Du Plessis Original Article 05 September 2006 Pages: 221 - 230
Oviposition height increases parasitism success by the robber fly Mallophora ruficauda (Diptera: Asilidae) Marcela K. CasteloMuriel Ney-NifleCarlos Bernstein Original Article 07 September 2006 Pages: 231 - 243
Long-term mate and territory fidelity in neotropical buff-breasted wrens (Thryothorus leucotis) Sharon A. GillBridget J. M. Stutchbury Original Article 19 September 2006 Pages: 245 - 253
Activity of root voles (Microtus oeconomus) under snow: social encounters synchronize individual activity rhythms Lars Korslund Original Article 13 September 2006 Pages: 255 - 263
A test of reproductive skew models in a field population of a multiple-queen ant R. L. HammondM. W. BrufordA. F. G. Bourke Original Article 16 September 2006 Pages: 265 - 275
Elk decision-making rules are simplified in the presence of wolves John Winnie Jr.David ChristiansonBruce Maxwell Original Article 28 September 2006 Pages: 277 - 289
The theoretical value of encounters with parasitized hosts for parasitoids Munjong KolssThomas S. HoffmeisterLia Hemerik Original Article 23 September 2006 Pages: 291 - 304
Secondary sexual characters and female quality in primates Joanna M. SetchellMarie J. E. CharpentierLeslie A. Knapp Original Article 05 October 2006 Pages: 305 - 315
Between-group contest competition for food in a highly folivorous population of black and white colobus monkeys (Colobus guereza) Tara R. Harris Original Article 31 October 2006 Pages: 317 - 329