479-497
Review
Access to mutualistic endosymbiotic microbes: an underappreciated benefit of group living
Michael P. Lombardo
499-505
Original Paper
The influence of social experience on cooperative behaviour of rats (
Rattus norvegicus
): direct vs generalised reciprocity
Claudia Rutte and Michael Taborsky
507-519
Original Paper
Melanin-based colorations signal strategies to cope with poor and rich environments
A. Roulin, J. Gasparini, P. Bize, M. Ritschard and H. Richner
521-528
Original Paper
Male lagoon gobies, Knipowitschia panizzae, prefer more ornamented to larger females
Matteo Pizzolon, Maria B. Rasotto and Carlotta Mazzoldi
529-535
Original Paper
Honeybees modify gustatory responsiveness after receiving nectar from foragers within the hive
Andrés Martinez and Walter M. Farina
537-548
Original Paper
Queen acceptance and the complexity of nestmate discrimination in the Argentine ant
Gissella M. Vásquez and Jules Silverman
549-559
Original Paper
A forest monkey’s alarm call series to predator models
Kate Arnold, Yvonne Pohlner and Klaus Zuberbühler
561-567
Original Paper
Predicting the mating system from phenotypic correlations between life-history and sperm quality traits in the Alpine whitefish Coregonus zugensis
Geir Rudolfsen, Rudolf Müller, Davnah Urbach and Claus Wedekind
569-578
Original Paper
Bushcricket song as a clue for spermatophore size?
Gerlind U. C. Lehmann and Arne W. Lehmann
579-587
Original Paper
Dominance status influences female reproductive strategy in a territorial African rodent Rhabdomys pumilio
Anouska A. Kinahan and Neville Pillay
589-597
Original Paper
Colony fission affects kinship in a social insect
Perttu Seppä, Ignacio Fernández-Escudero, Niclas Gyllenstrand and Pekka Pamilo
599-605
Original Paper
Experimental evidence of reciprocal altruism in the pied flycatcher
Indrikis Krams, Tatjana Krama, Kristine Igaune and Raivo Mänd
607-615
Original Paper
Optimal investment in sons and daughters when parents do not know the sex of their offspring
Shigeki Kishi and Takayoshi Nishida
617-625
Original Paper
Sex-specific effects of yolk-androgens on growth of nestling American kestrels
Keith W. Sockman, Jack Weiss, Michael S. Webster, Vanessa Talbott and Hubert Schwabl
627-638
Original Paper
Open AccessAndrogen and glucocorticoid levels reflect seasonally occurring social challenges in male redfronted lemurs (Eulemur fulvus rufus)
Julia Ostner, Peter Kappeler and Michael Heistermann