1. Paternity and performance of golden-winged warblers (Vermivora chrysoptera) and golden-winged X blue-winged warbler (V. pinus) hybrids at the leading edge of a hybrid zone

   • Rachel Vallender
   • Vicki L. Friesen
   • Raleigh J. Robertson

   Original Paper 22 May 2007 Pages: 1797 - 1807

2. Vibrational signals in a gregarious sawfly larva (Perga affinis): group coordination or competitive signaling?

   • Lynn E. Fletcher

   Original Paper 23 May 2007 Pages: 1809 - 1821

   

3. Divided destinies: group choice by female savannah baboons during social group fission

   • Russell C. Van Horn
   • Jason C. Buchan
   • Susan C. Alberts

   Original Paper 12 June 2007 Pages: 1823 - 1837

   

4. The effect of rearing environment on blue structural coloration of eastern bluebirds (Sialia sialis)

   • Lynn Siefferman
   • Geoffrey E. Hill

   Original Paper 24 May 2007 Pages: 1839 - 1846

   

5. Higher removal rate of eggs laid by anarchistic queens—a cost of anarchy?

   • Madeleine Beekman
   • Stephen J. Martin
   • Benjamin P. Oldroyd

   Original Paper 30 May 2007 Pages: 1847 - 1853

   

6. Individual specialization in the hunting wasp Trypoxylon (Trypargilum) albonigrum (Hymenoptera, Crabronidae)

   • Márcio S. Araújo
   • Marcelo O. Gonzaga

   Original Paper 23 May 2007 Pages: 1855 - 1863

   

7. The strategy of fly-and-forage migration, illustrated for the osprey (Pandion haliaetus)

   • Roine Strandberg
   • Thomas Alerstam

   Original Paper 26 May 2007 Pages: 1865 - 1875

   

8. Dispersal decisions and predispersal behavior in Polistes paper wasp ‘workers’

   • Elizabeth A. Tibbetts

   Original Paper 26 May 2007 Pages: 1877 - 1883

   

9. The relative role of age and experience in determining variation in body mass during the early breeding career of the Common Tern (Sterna hirundo)

   • Bente Limmer
   • Peter H. Becker

   Original Paper 22 June 2007 Pages: 1885 - 1896

   

10. A field test of the Hamilton–Zuk hypothesis in the Trinidadian guppy (Poecilia reticulata)

    • Christopher H. Martin
    • Sönke Johnsen

    Original Paper 07 July 2007 Pages: 1897 - 1909

    

11. Reproductive success of male bank voles (Clethrionomys glareolus): the effect of operational sex ratio and body size

    • Ines Klemme
    • Hannu Ylönen
    • Jana A. Eccard

    Original Paper 12 June 2007 Pages: 1911 - 1918

    

12. Social dominance, seasonal movements, and spatial segregation in African elephants: a contribution to conservation behavior

    • G. Wittemyer
    • W. M. Getz
    • I. Douglas-Hamilton

    Original Paper 10 June 2007 Pages: 1919 - 1931

    

13. Absence of status signalling by structurally based ultraviolet plumage in wintering blue tits (Cyanistes caeruleus)

    • Peter Korsten
    • Oscar Vedder
    • Jan Komdeur

    Original Paper Open access 12 June 2007 Pages: 1933 - 1943

    

14. The past ownership of a resource affects the agonistic behavior of hermit crabs

    • Elena Tricarico
    • Francesca Gherardi

    Original Paper 21 June 2007 Pages: 1945 - 1953