Algal blooms decrease care but increase egg survival in a fish with paternal care Marja JärvenpääKai Lindström Original Paper 11 June 2011 Pages: 2023 - 2028
Division of labor and slave raid initiation in slave-making ants Sebastian PohlVolker WitteSusanne Foitzik Original Paper 15 June 2011 Pages: 2029 - 2036
Mating with a kin decreases female remating interval: a possible example of inbreeding avoidance Panu VälimäkiSami M. KiveläMaarit I. Mäenpää Original Paper 17 June 2011 Pages: 2037 - 2047
Carry-over effects of male extra-pair copulation opportunity on biparental effort in zebra finches Davina L. HillJan LindströmRuedi G. Nager Original Paper 17 June 2011 Pages: 2049 - 2059
Consistent personality differences in house-hunting behavior but not decision speed in swarms of honey bees (Apis mellifera) Margaret K. WrayThomas D. Seeley Original Paper 15 June 2011 Pages: 2061 - 2070
Female choice over short and long distances: neighbour effects Sophia CallanderMichael D. JennionsPatricia R. Y. Backwell Original Paper 29 June 2011 Pages: 2071 - 2078
From interference to predation: type and effects of direct interspecific interactions of small mammals Monique LiesenjohannThilo LiesenjohannJana A. Eccard Original Paper 18 June 2011 Pages: 2079 - 2089
Adjusting the timing of hatching to changing environmental conditions has fitness costs in blue tits Edward KluenMaaike E. de HeijJon E. Brommer Original Paper 22 June 2011 Pages: 2091 - 2103
Bat predation and the evolution of leks in acoustic moths Sylvain AlemKlemen KoseljMichael D. Greenfield Original Paper 28 June 2011 Pages: 2105 - 2116
Experimental evidence for female-driven monandry in the wolf spider, Pardosa astrigera Xiaoguo JiaoLei GuoDaiqin Li Original Paper 18 June 2011 Pages: 2117 - 2123
The evolution of food sharing in primates Adrian V. JaeggiCarel P. Van Schaik Original Paper 22 June 2011 Pages: 2125 - 2140
Thermoregulatory cost affects territorial behavior in hummingbirds: a model and its application Paulina L. González-GómezNatalia Ricote-MartinezFrancisco Bozinovic Original Paper 18 June 2011 Pages: 2141 - 2148
Spatial and age-related variation in use of locally common song elements in dawn singing of song sparrows Melospiza melodia: old males sing the hits Janet M. LapierreDaniel J. MennillElizabeth A. MacDougall-Shackleton Original Paper 18 June 2011 Pages: 2149 - 2160
Social personality traits in chimpanzees: temporal stability and structure of behaviourally assessed personality traits in three captive populations Sonja E. Koski Original Paper 23 June 2011 Pages: 2161 - 2174
Experience with chemotactile cues indicating female feeding history impacts male courtship investment in the wolf spider Schizocosa ocreata Brian MoskalikGeorge W. Uetz Original Paper 20 July 2011 Pages: 2175 - 2181
Reciprocity and trades in wild West African chimpanzees Cristina M. GomesChristophe Boesch Original Paper 26 July 2011 Pages: 2183 - 2196