ACTIVITY & PROXIMITY PATTERNS OF JUVENILE HOWLING MONKEYS

幼年咆哮的猴子在他们的大部分时间里都是单形体的 青少年时期没有明显的性别差异，直到他们 变得性成熟。我们希望确定是否有 行为差异，这将允许我们非侵入性地确定 性。5岁以下幼年吼猴的行为和接近度 不同的社会群体在年龄上进行了比较 和性别差异。焦点动物观察(695.9小时)揭示 不同年龄的人在活动模式上没有显著差异 或性别，但与母亲的亲近程度存在差异。 与成年女性的亲近程度因年龄而异，年龄最小 动物与成年雌性动物在一起的时间最少。那里 在与成年雄性的接近程度上没有年龄差异，但青少年 男性比女性花更多的时间接近成年男性。 年龄或性别在与其他人的关系上没有差异 青少年，或游戏中的任何差异。咆哮的猴子幼崽 在行为模式上似乎几乎和他们一样一元化

Juvenile howling monkeys are monomorphic during most of their juvenile period as no sexual differences are apparent until they become sexually mature. We hoped to determine if there were behavioral differences which would allow us to noninvasively determine sex. Behavior and proximity of juvenile howling monkeys from 5 different social groups on Hacienda La Pacifica were compared for age and sex differences. Focal animal observations (695.9 hours) revealed that there were no significant differences in activity pattern by age or by sex, but that there were differences in proximity to mother. Proximity to adult females were different by age, with youngest animals spending the least amount of time near adult females. There were no differences in proximity to adult males by age, but juvenile males spent significantly more time than females near adult males. There were no differences by age or sex in proximity to other juveniles, or any differences in play. Howling monkey juveniles appear to be almost as monomorphic in behavior patterns as they are