兽类学报2025，Vol.45Issue(4)：438-445,8.DOI:10.16829/j.slxb.150996
非人灵长类和鹦鹉脑大小与多样化速率间的全球趋同关系
Globally convergent relationships between relative brain mass and diver-sification rate in non-human primates and parrots
摘要
Abstract
Non-human primates and parrots have convergently evolved remarkable cognitive abilities compared to their close relatives.This advantage can facilitate ecological niche expansion and adaptation to new environments,thereby spurring species diversification.However,the connection between brain size and diversification rate on a global scale re-mains unknown in these two clades.Here,based on a brain dataset comprising 283 primate and 201 parrot species,we used phylogenetic and spatial analysis methods to uncover a convergently coupled relationship between relative brain mass and diversification rate,despite the opposing global patterns observed in primates and parrots.Climate factors ex-hibit a statistically significant but weak effect on relative brain size,which contrasts with previous findings at the species level.Furthermore,there is a significant positive association between the relative brain size and threat risk in the spatial distribution of parrots.Our results demonstrate that the evolutionary similarity in brain size plays a crucial role in shap-ing the spatial patterns of diversification rate across species,highlighting the need for increased concern and protection of regions with larger brain sizes.关键词
脑容量/趋同演化/多样化速率/非人灵长类/鹦鹉Key words
Brain size/Convergent evolution/Diversification/Non-human primate/Parrot分类
生物科学引用本文复制引用
张一舟,姚永芳,肖洪涛,解萌,武佳韵,倪庆永,杨盛智,徐怀亮,熊鹰..非人灵长类和鹦鹉脑大小与多样化速率间的全球趋同关系[J].兽类学报,2025,45(4):438-445,8.基金项目
国家自然科学基金青年项目(32300352) （32300352）
