Effects of ontogeny and odors on behavior: The influence of crayfish size and fish odors on crayfish movement
Effects of ontogeny and odors on behavior: The influence of crayfish size and fish odors on crayfish movement
复制标题
个体发育和气味对行为的影响：小龙虾大小和鱼气味对小龙虾运动的影响
DOI：
10.1080/10236249909387080
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发表时间：
1999
影响因子：
1
通讯作者：
P. Moore
中科院分区：
文献类型：
--
作者：
T. Keller;P. Moore
内在和外在因素以复杂的方式相互作用，影响个体行为。我们描述了个体发育阶段和来自潜在捕食者的化学物质如何影响 Orconectes virilis 在接触来自岩鲈、黄鲈、蛇鲈和对照的化学物质之前和期间的夜间运动。较小的小龙虾比较大的个体花费更多的时间移动并且移动得更快。鱼腥味不会改变小龙虾的短期移动率。因此，个体大小等内在因素会影响小龙虾的行为。我们的结果证实了其他研究，表明捕食者气味本身并不会改变 O. virilis 的短期活动模式。因为研究已经证实，O. virilis 可以检测到这些气味，并在捕食者存在时改变它们的活动，因此我们建议气味线索可以起到引物的作用（即改变动物动机状态而不改变行为的刺激）。
Intrinsic and extrinsic factors interact in complex ways to influence individual behavior. We characterized how ontogenetic stage and chemicals from potential predators influence nocturnal movement of Orconectes virilis before and during exposure to chemicals from rock bass, yellow perch, darters, and a control. Smaller crayfish spent more time moving and moved faster than larger individuals. Fish odor did not alter the short‐term movement rates of crayfish. Thus, intrinsic factors such as individual size influence crayfish behavior. Our results corroborate other studies showing that predator odors alone do not change the short‐term activity patterns of O. virilis. Because studies have established that O. virilis can detect these odors and shift their activity when predators are present, we suggest that odor cues may function as primers (i.e., stimuli that change the motivational state of animals without altering behavior).