1. Calling site choice and its impact on call degradation and call attractiveness in the gray treefrog, Hyla versicolor

   • Joshua J. Schwartz
   • Raymond Hunce
   • Kristi Powers

   Original Article 06 October 2015 Pages: 1 - 19

   

2. Presentation order affects decisions made by foraging hummingbirds

   • Kate V. Morgan
   • T. Andrew Hurly
   • Susan D. Healy

   Original Article 12 October 2015 Pages: 21 - 26

   

3. The placid slavemaker: avoiding detection and conflict as an alternative, peaceful raiding strategy

   • Isabelle Kleeberg
   • Susanne Foitzik

   Original Article 06 October 2015 Pages: 27 - 39

   

4. Maternal care in a glassfrog: care function and commitment to offspring in Ikakogi tayrona

   • Laura Bravo Valencia
   • Jesse Delia

   Original Article 15 October 2015 Pages: 41 - 48

   

5. Geographic variation in breeding system and environment predicts melanin-based plumage ornamentation of male and female Kentish plovers

   • Araceli Argüelles-Ticó
   • Clemens Küpper
   • René E. van Dijk

   Original Article Open access 24 October 2015 Pages: 49 - 60

   

6. More than meets the eye: kinship and social organization in giant otters (Pteronura brasiliensis)

   • Carolina Ribas
   • Haydée A. Cunha
   • Guilherme Mourão

   Original Article 19 October 2015 Pages: 61 - 72

   

7. An effective sperm competition avoidance strategy in crabs drives genetic monogamy despite evidence of polyandry

   • Luis M Pardo
   • Marcela P. Riveros
   • David Veliz

   Original Article 30 October 2015 Pages: 73 - 81

   

8. Coloration in the polymorphic frog Oophaga pumilio associates with level of aggressiveness in intraspecific and interspecific behavioral interactions

   • Sandra P. Galeano
   • Kyle E. Harms

   Original Article 04 November 2015 Pages: 83 - 97

   

9. Metabolism, oxidative stress and territorial behaviour in a female colour polymorphic cichlid fish

   • Peter D. Dijkstra
   • Michele E.R. Pierotti
   • Neil B. Metcalfe

   Original Article 04 November 2015 Pages: 99 - 109

   

10. Maternal kinship and fisheries interaction influence killer whale social structure

    • R. Esteban
    • P. Verborgh
    • R. de Stephanis

    Original Article 31 October 2015 Pages: 111 - 122

    

11. Offspring sex in mountain goat varies with adult sex ratio but only for mothers in good condition

    • Sandra Hamel
    • Marco Festa-Bianchet
    • Steeve D. Côté

    Original Article 04 November 2015 Pages: 123 - 132

    

12. The relative importance of spatial proximity, kin selection and potential ‘greenbeard’ signals on provisioning behaviour among helpers in a cooperative bird

    • Paul G. McDonald
    • Lee Ann Rollins
    • Stephanie Godfrey

    Original Article 06 November 2015 Pages: 133 - 143

    

13. Ants incommunicado: collective decision-making over new nest sites by ants with reduced communication

    • Jonathan P. Stuttard
    • Daphna Gottlieb
    • Nigel R. Franks

    Original Article 13 November 2015 Pages: 145 - 155

    

14. Sex-dependent responses to increased parental effort in the pied flycatcher

    • P. E. Järvistö
    • S. Calhim
    • T. Laaksonen

    Original Article 07 November 2015 Pages: 157 - 169

    

15. Barn swallows (Hirundo rustica) differentiate between common cuckoo and sparrowhawk in China: alarm calls convey information on threat

    • Jiangping Yu
    • Longwu Wang
    • Wei Liang

    Original Article 11 November 2015 Pages: 171 - 178

    

16. On plasticity of aggression: influence of past and present predation risk, social environment and sex

    • Gábor Herczeg
    • Nurul Izza Ab Ghani
    • Juha Merilä

    Original Article 11 November 2015 Pages: 179 - 187

    

17. Sexual segregation when foraging in an extremely social killer whale population

    • Amber Beerman
    • Erin Ashe
    • Rob Williams

    Original Article 13 November 2015 Pages: 189 - 198

    

18. Territorial clashes in the Neotropical butterfly Actinote pellenea (Acraeinae): do disputes differ when contests get physical?

    • M. R. M. Carvalho
    • P. E. C. Peixoto
    • W. W. Benson

    Original Article 27 November 2015 Pages: 199 - 207

    

19. Why patterns of assortative mating are key to study sexual selection and how to measure them

    • Grant C. McDonald
    • Tommaso Pizzari

    Methods Open access 27 November 2015 Pages: 209 - 220