Intraspecific differences in the dispersal propensity of animals have been linked to interindividual variation in inherent tendencies (i.e., personality or behavioral type) that influence multiple aspects of an individual’s behavior. Studies linking dispersal propensity and personality often (1) focus on defining behavioral tendencies with a single behavioral trait rather than multiple, (2) do not recognize that invertebrates may have behavioral tendencies that influence dispersal, and (3) do not consider how the behavioral type of other individuals affects the dispersal propensity of an individual. We documented multiple foraging behaviors of an aquatic predatory insect (Notonecta irrorata) and found that Notonecta individuals differ in their inherent behavioral tendency (i.e., degree of boldness); all foraging behaviors were correlated such that riskier behaviors were exhibited by the same individuals. We conducted an experiment in which we varied which behavioral types of Notonecta were placed in outdoor pools (passive, bold or both types present) and quantified how long it took for individuals to disperse. Passive and bold individuals had a similar propensity to disperse but the dispersal propensity of each behavioral type was influenced by the behavioral type of other conspecifics present in the pool. Our work reveals that (1) invertebrates have inherent behavioral tendencies that vary among individuals but these tendencies do not necessarily impact all of the behavior displayed by the individual (i.e., impact foraging but not dispersal) and (2) the inherent behavioral tendency of other individuals with which an animal co-occurs can affect habitat patch dynamics such as predation, competition, or colonization.

动物散布倾向的种内差异与影响个体行为多个方面的内在倾向（即人格或行为类型）的个体间差异有关。将散布倾向和人格联系起来的研究通常（1）着重于定义具有单一行为特征而非多种行为特征的行为倾向；（2）不认识到无脊椎动物可能具有影响散布的行为倾向；（3）不考虑行为方式如何。其他人的类型会影响一个人的分散倾向。我们记录了水生掠食性昆虫（Notonecta irrorata）的多种觅食行为，并发现Notonecta个人的内在行为倾向（即勇敢程度）有所不同；所有觅食行为都相互关联，使得同一个人表现出较高风险的行为。我们进行了一项实验，在其中我们改变了Notonecta的哪些行为类型被放置在室外游泳池（被动，粗体或同时存在两种类型）中，并量化个人分散所需的时间。被动和大胆的个体具有相似的分散倾向，但每种行为类型的分散倾向受池中其他特定物种的行为类型影响。我们的工作表明，（1）无脊椎动物的内在行为倾向在个体之间会有所不同，但是这些倾向并不一定会影响个体表现出的所有行为（即，影响觅食但不会分散），以及（2）其他个体的内在行为倾向与动物共生的个体可以影响栖息地斑块的动态，例如掠食，竞争或定居。