1. Algal blooms decrease care but increase egg survival in a fish with paternal care

   • Marja Järvenpää
   • Kai Lindström

   Original Paper 11 June 2011 Pages: 2023 - 2028

   

2. Division of labor and slave raid initiation in slave-making ants

   • Sebastian Pohl
   • Volker Witte
   • Susanne Foitzik

   Original Paper 15 June 2011 Pages: 2029 - 2036

   

3. Mating with a kin decreases female remating interval: a possible example of inbreeding avoidance

   • Panu Välimäki
   • Sami M. Kivelä
   • Maarit I. Mäenpää

   Original Paper 17 June 2011 Pages: 2037 - 2047

   

4. Carry-over effects of male extra-pair copulation opportunity on biparental effort in zebra finches

   • Davina L. Hill
   • Jan Lindström
   • Ruedi G. Nager

   Original Paper 17 June 2011 Pages: 2049 - 2059

   

5. Consistent personality differences in house-hunting behavior but not decision speed in swarms of honey bees (Apis mellifera)

   • Margaret K. Wray
   • Thomas D. Seeley

   Original Paper 15 June 2011 Pages: 2061 - 2070

   

6. Female choice over short and long distances: neighbour effects

   • Sophia Callander
   • Michael D. Jennions
   • Patricia R. Y. Backwell

   Original Paper 29 June 2011 Pages: 2071 - 2078

   

7. From interference to predation: type and effects of direct interspecific interactions of small mammals

   • Monique Liesenjohann
   • Thilo Liesenjohann
   • Jana A. Eccard

   Original Paper 18 June 2011 Pages: 2079 - 2089

   

8. Adjusting the timing of hatching to changing environmental conditions has fitness costs in blue tits

   • Edward Kluen
   • Maaike E. de Heij
   • Jon E. Brommer

   Original Paper 22 June 2011 Pages: 2091 - 2103

   

9. Bat predation and the evolution of leks in acoustic moths

   • Sylvain Alem
   • Klemen Koselj
   • Michael D. Greenfield

   Original Paper 28 June 2011 Pages: 2105 - 2116

   

10. Experimental evidence for female-driven monandry in the wolf spider, Pardosa astrigera

    • Xiaoguo Jiao
    • Lei Guo
    • Daiqin Li

    Original Paper 18 June 2011 Pages: 2117 - 2123

    

11. The evolution of food sharing in primates

    • Adrian V. Jaeggi
    • Carel P. Van Schaik

    Original Paper 22 June 2011 Pages: 2125 - 2140

    

12. Thermoregulatory cost affects territorial behavior in hummingbirds: a model and its application

    • Paulina L. González-Gómez
    • Natalia Ricote-Martinez
    • Francisco Bozinovic

    Original Paper 18 June 2011 Pages: 2141 - 2148

    

13. 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. Lapierre
    • Daniel J. Mennill
    • Elizabeth A. MacDougall-Shackleton

    Original Paper 18 June 2011 Pages: 2149 - 2160

    

14. 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

    

15. Experience with chemotactile cues indicating female feeding history impacts male courtship investment in the wolf spider Schizocosa ocreata

    • Brian Moskalik
    • George W. Uetz

    Original Paper 20 July 2011 Pages: 2175 - 2181

    

16. Reciprocity and trades in wild West African chimpanzees

    • Cristina M. Gomes
    • Christophe Boesch

    Original Paper 26 July 2011 Pages: 2183 - 2196