Eviction and Troop Reconstruction in a Single Matriline of Ring-Tailed Lemurs (Lemur catta): What Happened When “Grandmother” Died?

摘要: Eviction of subordinate females is well known in female-dominated ring-tailed lemur society. In almost all cases, evictions result from a dominant matriline targeting aggression towards matrilines. Here, we report an eviction large, single matrilineal troop after the death troop’s “Grandmother.” Although contained ≥18 individuals and 8 over several years, no occurred while Grandmother was alive. After her death, newly female younger sisters evicted their nieces whose higher-ranking mother had already died. The relatives did not follow but stayed natal troop. We suggest (1) presence certain like may function as deterrent to among descendants; (2) if occurs within matriline, aggressors evict most distant kin; (3) form subgroup with rather than older ones circumvent intragroup competition; (4) juveniles kin do always nomadic evictees choose safer strategy remaining