Graphs of posterior probabilities for each of the 63 scenarios per level of parasitism and generational time.

Louse infestation included three levels: 10% (S9 Fig A), 30% (S9 Fig B) and 50% (S9 Fig C), where 10% indicates that 10% of the hominin population have 10 lice per head, the 30% level considers that each head would have 20 lice and only 30% of the population is infested, while the 50% reflects high level of parasitism with 50 lice per head in 50% of the population. For this study we considered the time of head lice maturation from egg to reproductive male adult and egg-laying-adult female of 18 days, 27 days and 36 days. Each demographic model was color-coded as follow Scenario 1 –green, Scenario 2 –red, Scenario 3 –light blue, Scenario 4 –pink, Scenario 5 –yellow, Scenario 6 –black, Scenario 7 –grey. (ZIP)

头虱侵染设置了三个等级：10%（对应补充材料图9A，S9 Fig A）、30%（S9 Fig B）与50%（S9 Fig C）。其中10%等级指10%的古人类（hominin）群体每人头皮携带10只头虱；30%等级设定为仅30%的群体受侵染，每人头皮携带20只头虱；50%等级代表高寄生水平，即50%的群体每人头皮携带50只头虱。本研究设定头虱从卵发育至具有繁殖能力的雄性成虫与产卵雌性成虫的成熟时长分别为18天、27天与36天。所有种群动态模型（demographic model）均按如下规则配色：情景1——绿色，情景2——红色，情景3——浅蓝色，情景4——粉色，情景5——黄色，情景6——黑色，情景7——灰色。（ZIP）