... to exhibit age-related decreases in aversive memory. Appetitive memory likewise decreases, beginning in the first 2–3 weeks of adult life. Ageing Reward Learning Drosophila melanogaster Sex difference Leibniz-Institut für Neurobiologie Deutsche Forschungsgemeinschaft http...

... yolk and may alter offspring growth and adult phenotype . Gen. Comp. Endocrinol.   135 , 365 - 371 . 10.1016/j.ygcen.2003.11.002 Hayward , L. S. , Richardson , J. B. , Grogan , M. N. and Wingfield , J. C . ( 2006 ). Sex differences in the organizational effects...

...” object recognition? J. Neurophysiol. 102 , 360 - 376 . Lonsdorf E. V. ( 2005 ). Sex differences in the development of termite-fishing skills in the wild chimpanzees, Pan troglodytes schweinfurthii, of Gombe National Park, Tanzania . Anim. Behav. 70 , 673 - 683 . Lonsdorf E...

... conformis mycerini and Xenopsylla ramesis, and also jirds born in the laboratory to previously parasitized mothers(laboratory animals; N =23). We asked (i) whether cross-immunity to different fleas occurs, (ii) whether there is a sex difference in immune responses to flea parasitism and (iii) whether...

... changes in energy balance. * Author for correspondence (e-mail: Klaus@mail.dife.de ) 1 6 2004 © The Company of Biologists Limited 2004 2004 body mass set-point energy expenditure body composition ponderostat obesity gravity sex difference mice The set-point theory...

...Paul M. Cryan; Blair O. Wolf SUMMARY This study quantifies sex differences in thermoregulation and water loss of a small (20-35 g) insectivorous heterothermic mammal, the hoary bat Lasiurus cinereus , during its spring migration. We measured body temperature, metabolic rate and evaporative water...

... of Biologists Limited 2003 2003 razorbill Alca torda parent—offspring vocal recognition sex difference behaviour monogamous seabird auk Alcidae Individual recognition is a complex and variable phenotypic trait with implications for animal social behaviour ranging from cooperation...

... mate recognition temperature cuticle cuticular hydrocarbon Drosophila melanogaster ontogeny heat shock biosynthesis sex difference One main function of cuticular hydrocarbons (CHs) is to protect the insect from dessiccation by reducing cuticle permeability to water( Edney, 1967...