Supplemental Data for: Variation in Predator Recognition Across Three Species of Jumping Spiders (Salticidae)

The ability to recognize threats and to respond in a timely and appropriate manner carries significant benefits. Depending on the recognition task, this can be cognitively demanding. The zebra jumping spider (Salticus scenicus) is capable of visually recognizing static predator stimuli and reacts via a robust “freeze and retreat,” a potentially innate response in this species. Here, we extend this finding, asking whether the ability of spiderlings to recognize a static predator and to initiate an escape response is common across juvenile salticids, and if so, whether there is species-specific variation of anti-predator responses. We found that captive-reared spiderlings of three European salticid species from different genera (Heliophanus cf. cupreus, Evarcha arcuata, Marpissa muscosa) were able to robustly recognize and retreat from a stationary predator stimulus. Additionally, we found differences in the reaction times between the species as well as different behavioral repertoires associated with the escape response which may reflect species-specific predator avoidance strategies. This upload includes two datasets as well as the complete R script used for data analysis.识别威胁并及时作出恰当应对的能力具有显著收益。针对不同的识别任务，该过程往往需要较高的认知负荷。斑马跳蛛（Salticus scenicus）能够通过视觉识别静态捕食者刺激物，并通过稳健的“静止并后退”行为作出反应——这是该物种潜在的先天防御反应。本研究延续此前的发现，旨在探究幼蛛识别静态捕食者并启动逃逸反应的能力是否普遍存在于幼年跳蛛中；若普遍存在，其反捕食反应是否存在物种特异性差异。研究结果显示，来自3个不同属的欧洲跳蛛物种的人工饲养幼蛛（铜闪蛛近似种（Heliophanus cf. cupreus）、弓跳蛛（Evarcha arcuata）、苔跳蛛（Marpissa muscosa））均能稳健识别静止的捕食者刺激物并后退逃离。此外，本研究还发现不同物种间的反应时存在差异，且伴随逃逸反应的行为谱也有所不同，这或反映了物种特异性的捕食者规避策略。 本上传包包含两份数据集以及用于数据分析的完整R脚本。