1. Different mating expenditure in response to sperm competition risk between generations in the bivoltine butterfly Pieris napi

   • Helena Larsdotter-Mellström
   • Christer Wiklund

   Original Paper 12 April 2015 Pages: 1067 - 1074

   

2. The effects of maternal presence on natal dispersal are seasonally flexible in an asocial rodent

   • Shinsuke H. Sakamoto
   • Takeshi Eto
   • Chihiro Koshimoto

   Original Paper 14 April 2015 Pages: 1075 - 1084

   

3. Exploration behavior and parental effort in wild great tits: partners matter

   • Morgan David
   • Rianne Pinxten
   • Marcel Eens

   Original Paper 17 April 2015 Pages: 1085 - 1095

   

4. Carotenoids increase immunity and sex specifically affect color and redox homeostasis in a monochromatic seabird

   • Sarah Leclaire
   • Vincent Bourret
   • Étienne Danchin

   Original Paper 25 April 2015 Pages: 1097 - 1111

   

5. Prior residence effect in wintering male Eurasian siskins is not related to resource holding power

   • Juan Carlos Senar
   • Jordi Pascual

   Original Paper 23 April 2015 Pages: 1113 - 1118

   

6. Context-dependent evaluation of prospective mates in a fish

   • Lisa Locatello
   • Federica Poli
   • Maria B. Rasotto

   Original Paper Open access 25 April 2015 Pages: 1119 - 1126

   

7. A place in the sun: interspecific interference affects thermoregulation in coexisting lizards

   • Anamarija Žagar
   • Miguel A. Carretero
   • Al Vrezec

   Original Paper 25 April 2015 Pages: 1127 - 1137

   

8. Anthropogenic noise is associated with changes in acoustic but not visual signals in red-winged blackbirds

   • Alejandro A. Ríos-Chelén
   • Gavin C. Lee
   • Gail L. Patricelli

   Original Paper 30 April 2015 Pages: 1139 - 1151

   

9. Temporal shifts in activity of prey following large predator reintroductions

   • Craig J. Tambling
   • Liaan Minnie
   • Graham I. H. Kerley

   Original Paper 06 May 2015 Pages: 1153 - 1161

   

10. Reproductive competition and inbreeding avoidance in a primate species with habitual female dispersal

    • Linda Vigilant
    • Justin Roy
    • Tara S. Stoinski

    Original Paper 20 May 2015 Pages: 1163 - 1172

    

11. Arginine vasotocin modulates associative learning in a mutualistic cleaner fish

    • Sónia C. Cardoso
    • Redouan Bshary
    • Marta C. Soares

    Original Paper 06 May 2015 Pages: 1173 - 1181

    

12. Commitment time depends on both current and target nest value in Temnothorax albipennis ant colonies

    • Carolina Doran
    • Zac F. Newham
    • Nigel R. Franks

    Original Paper 12 May 2015 Pages: 1183 - 1190

    

13. Do male Trinidadian guppies adjust their alternative mating tactics in the presence of a rival male audience?

    • Heather L. Auld
    • Sarah B. Jeswiet
    • Jean-Guy J. Godin

    Original Paper 09 May 2015 Pages: 1191 - 1199

    

14. Ontogenetic shift of antipredator behaviour in Hermann’s tortoises

    • Ana Golubović

    Original Paper 06 May 2015 Pages: 1201 - 1208

    

15. Differences in exploration behaviour in common ravens and carrion crows during development and across social context

    • Rachael Miller
    • Thomas Bugnyar
    • Christine Schwab

    Original Paper Open access 12 May 2015 Pages: 1209 - 1220

    

16. Beaver foraging behaviour: Seasonal foraging specialization by a choosy generalist herbivore

    • Aleš Vorel
    • Lenka Válková
    • Jana Korbelová

    Original Paper 14 May 2015 Pages: 1221 - 1235