生物灾害科学2026，Vol.49Issue(2)：181-188,8.DOI:10.3969/j.issn.2095-3704.2026.02.21
南岭东段趾铁甲属3个亚属的体型分异格局
Body size differentiation among the three subgenera of Dactylispa in the eastern Nanling Mountains
摘要
Abstract
[Objective]This study aimed to reveal the body size differentiation pattern of the genus Dactylispa and its relationship with the taxonomic status of its three subgenera(Dactylispa s.str.,Triplispa,and Platypriella).[Method]Systematic field surveys and laboratory rearing were conducted in the eastern section of Nanling Mountains.Morphometric measurement and analyses were performed on collected specimens of Dactylispa.[Result]A total of 284 specimens belonging to 24 species across three subgenera were obtained.Measurement indicators included body weight,body length,and body width,from which the length‑to‑width ratio was calculated.Statistical analysis showed no significant difference in body weight among three subgenera(P>0.05).The body length of the subgenus Platypriella was significantly greater than that of other two subgenera(P<0.05),while body width and length‑to‑width ratio exhibited highly significant gradient differences among subgenera(P<0.001).Specifically,body width decreased in the order:Platypriella,Triplispa,Dactylispa s.str.,whereas the length‑to‑width ratio showed the opposite trend.Based on the power‑function model,regression relationships between body size indicators were established;all models reached extremely significant levels except for the body width‑weight model in Platypriella.All allometric growth indices(b values)were less than 3.[Conclusion]The morphological differentiation pattern among three subgenera of Dactylispa in the eastern Nanling region is primarily characterized by body width and length‑to‑width ratios.The genus Dactylispa as a whole exhibits a negative allometric growth pattern.关键词
趾铁甲属/体型分异/南岭/分类学/异速生长Key words
Dactylispa/body size differentiation/Nanling Mountains/taxonomy/allometric growth分类
农业科技引用本文复制引用
王佳龙,杨雨茹,杨朝坤,马蓝蓝,廖承清,徐家生,郭青云,戴小华..南岭东段趾铁甲属3个亚属的体型分异格局[J].生物灾害科学,2026,49(2):181-188,8.基金项目
国家自然科学基金项目(32260282、42501062)、江西省自然科学基金项目(20232ACB205005)和江西省教育厅科技项目GJJ2201254) （32260282、42501062）
