Volume 67(1) (September 2005) of the American Journal of Primatology was a special issue, dedicated to “Advances in Field Behavioral Endocrinology,” edited by Karen B. Strier and Toni E. Ziegler. Contents: Introduction: Advances in field-based studies of primate behavioral ecology – K. B. Strier & T. E. Ziegler, pp.1–4; Effects of reproductive and social variables on fecal glucocorticoid levels in a sample of adult male ring-tailed lemurs (Lemur catta) at the Beza Mahafaly Reserve, Madagascar – L. Gould, T. E. Zeigler & D. J. Wittwer, p.5–23; Social and reproductive factors affecting cortisol levels in wild female golden lion tamarins (Leontopithecus rosalia) – K. L. Bales, J. A. French, C. M. Hostetler & J. M. Dietz, pp.25–35; Behavioral strategies and hormonal profiles of dominant and subordinate common marmoset (Callithrix jacchus) females in wild monogamous groups – M. B. C. de Sousa, A. C. S. da R. Albuquerque, F. da S. Albuquerque, A. Araújo, M. E. Yamamoto & M. de F. Arruda, pp.37–50; Behavioral indicators of ovarian phase in white-faced capuchins (Cebus capucinus) – S. D. Carnegie, L. M. Fedigan & T. E. Zeigler, pp.51–68; Variation in the resumption of cycling and conception by fecal androgen and estradiol levels in female northern muriquis (Brachyteles hypoxanthus) – K. B. Strier & T. E. Ziegler, pp.69–81; Coming of age: Steroid hormones of wild immature baboons (Papio cynocephalus) – L. R. Gesquiere et al., pp. 83–100; Female testosterone, dominance rank, and aggression in an Ethiopian population of hybrid baboons – J. C. Beehner, J. E. Phillips-Conroy & P. L. Whitten, pp.101–119; Radioimmunoassay of estrone conjugates from urine dried on filter paper – C. D. Knott, pp.121–135; Reproductive endocrinology of wild female chimpanzees (Pan troglodytes schweinfurthii): Methodological considerations and the role of hormones in sex and conception – M. E. Thompson, pp.137–158; Fecal steroid research in the field and laboratory: Improved methods for storage, transport, processing, and analysis – T. E. Ziegler & D. J. Wittwer, pp.158–174.
