Faculty of Veterinary Medicine, University of Liège, Liège, Belgium.
Laboratório de Etologia Aplicada, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil.
Behav Processes. 2021 Dec;193:104537. doi: 10.1016/j.beproc.2021.104537. Epub 2021 Nov 2.
Inter-individual differences in behavior, together with phenotypic plasticity, may play a key role in the reintroduction success of captive-born individuals. Therefore, we aimed to investigate whether and how personality traits affect the plasticity of defensive behavior in collared peccary (Dicotyles tajacu). Twenty-six adult captive-born collared peccaries (12 males and 14 females) were submitted to three short-term challenges for personality assessment. Thereafter, each individual was submitted to four sequential tests, with different degrees of risk, allowing us to assess temporal/context consistencies in personality traits as well as the plasticity of defensive behavior. We noted a pronounced variability among the individuals' boldness trait, while males and females did not differ in their behavioral responses in all tests. Additionally, collared peccaries show behavioral plasticity of defensive behavior across risk conditions. We also verified an association between boldness and defensive behavior in this species: the higher the boldness score, the less time collared peccaries spent on wariness behaviors in the higher risk condition. The link between personality traits and behavioral plasticity of collared peccaries across risk conditions warrants further investigation to understand the impact of this association on the post-release success of this and other species.
个体间行为的差异，加上表型可塑性，可能在圈养个体重新引入的成功中发挥关键作用。因此，我们旨在研究个性特征是否以及如何影响颈带野猪（Dicotyles tajacu）防御行为的可塑性。26 只成年圈养颈带野猪（12 只雄性和 14 只雌性）被进行了三次短期挑战以进行个性评估。此后，每个个体都接受了四项连续的测试，具有不同程度的风险，使我们能够评估个性特征的时间/环境一致性以及防御行为的可塑性。我们注意到个体的大胆特质存在明显的可变性，而雄性和雌性在所有测试中的行为反应没有差异。此外，颈带野猪在不同风险条件下表现出防御行为的可塑性。我们还验证了该物种中大胆与防御行为之间的关联：大胆得分越高，颈带野猪在更高风险条件下警惕行为的持续时间越短。在不同风险条件下，颈带野猪个性特征与行为可塑性之间的联系值得进一步研究，以了解这种关联对该物种和其他物种释放后的成功的影响。
