Scent marking (pasting) in a colony of immature spotted hyenas (Crocuta crocuta): a developmental study.

摘要: Pasting, a stereotypic form of anal gland scent marking, was studied in 2 cohorts (N = 20) captive spotted hyenas (Crocuta crocuta). A significant increment the frequency pasting occurred both as animals approached sexual maturity; however, gonadectomy during early juvenile age period had no effects on subsequent frequency. Dominant tended to scent-mark more frequently than subordinates late subadult period. Pasting facilitated by immediately preceding activities other hyenas, has been reported occur nature, and olfactory investigation most common behavior pasting. Spotted (Crucuta crocuta) are nocturnal social hunters, living relatively stable groups (clans) that consist resident females, their cubs, immigrant males (Frank, 1986a; Henschel & Skinner, 1987; Kruuk, 1972). Hyenas within home range defecating at latrines, scratching ground (which deposits from interdigital glands), (Bearder Randall, 1978; 1972; Mills Gorman, 1987). involves depositing secretions, which have strong soapy odor, objects environment, typically stalks grass. It is performed using stereotyped pattern forward movement with tail elevated, pouch bulging above anus (Matthews, 1939), hindquarters lowered semisquatting position. Both sexes use same posture while Observations contained this report were gathered course developmental study hormones hyenas. This species chosen for because it exhibits absence or reversal many dimorphisms typical mammals. Female normal external genitalia; rather, clitoris hypertrophied so very similar male penis traversed central urogenital canal (Kruuk, Matthews, 1939). fully erectile, female mates gives birth through it. Females also heavier aggressive Frank, Glickman, Zabel, 1989). Within clan, adult females dominate feeding kills situations 1986b; Contemporary understanding differentiation (e.g., Goy McEwen, 1980) suggests character