身体部位的选择尺寸分类的两种Trichogramma物种
Diego de Souza1, Geraldo Andrade Carvalho2, Lucas Del Bianco Faria3
1Graduate Program in Entomology, Dept of Entomology, Federal Univ of Lavras, Lavras, MG, Brazil. desouza.diego@live.com.
Neotropical entomology
|July 4, 2024
概括
准确测量Trichogramma寄生虫的大小对于生物控制至关重要. 这项研究发现,使用翅膀或卵巢器提供了最佳的尺寸估计,改进了传统的单次测量方法.
科学领域:
- 昆虫学 昆虫学是一门学科.
- 生物控制 生物控制
- 形态测量 形态测量 形态测量
背景情况:
- 身体大小是寄生虫和捕食者质量的关键指标.
- 较大的生物通常表现出更好的生物参数,并且更容易被自然敌人发现.
- 三重属 (Hymenoptera:Trichogrammatidae) 在生物控制中至关重要,但精确的尺寸评估具有挑战性.
研究的目的:
- 为了确定最可靠的形态测量来估计Trichogramma寄生虫的身体大小.
- 为了比较各种身体部位 (天线,皮,卵巢,骨,翅膀) 在尺寸确定中的有效性.
- 验证使用主要组件分析 (PCA) 和线性区分分析 (LDA) 来选择最佳的形态指标.
主要方法:
- 从Trichogramma pretiosum和Trichogramma galloi标本中对多个身体部位进行显微镜成像和测量.
- 主要组件分析 (PCA) 的应用,以评估不同的身体部位如何代表整体尺寸.
- 使用线性差异分析 (LDA) 来确定尺寸估计中最具代表性的单个身体部位.
主要成果:
- PCA表明,所有测量的身体部位 (天线,骨,卵巢,骨,翅膀) 同样反映了整体尺寸.
- 根据LDA的说法,卵巢是体型估计中最具代表性的身体部位.
- 翅膀和卵巢被确定为研究Trichogramma物种的大小的最佳指标.
- 至少需要两次身体部位测量才能区分两个不同的尺寸组.
结论:
- 建议将翅膀和卵巢作为评估Trichogramma大小的主要测量.
- 依靠单一的身体部位,如骨,可能会导致不准确的尺寸估计.
- 使用多个形态参数可以提高Trichogramma物种大小分类的准确性,用于生物控制应用.
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