走上道路:在乱的大西洋森林息地筑巢的火的哈普洛型多样性
Juliana Maria Conceição Alves1, Victor Hideki Nagatani2, Otavio Guilherme Morais Silva3
1Laboratório de Mirmecologia do Alto Tietê - Núcleo de Ciências Ambientais, Universidade de Mogi das Cruzes, Mogi das Cruzes, São Paulo, Brazil. juliana.maconves@gmail.com.
Neotropical entomology
|June 13, 2023
概括
人类的干扰影响着火 (Solenopsis saevissima) 的遗传多样性. 在人类化息地发现了特定的单双类型,这引发了大西洋森林本土物种的保护问题.
科学领域:
- 生态生态学 生态生态学
- 遗传学 遗传学 是一个
- 保护生物学 保护生物学
背景情况:
- (Solenopsis saevissima) 是南美洲的一个主要的,通用主义的物种.
- 在巴西大西洋森林周围,人类活动和息地碎片化正在增加.
- 人类干扰对S. saevissima线粒体DNA (mtDNA) 哈普洛型多样性的影响仍未研究.
研究的目的:
- 在不同的人类扰乱息地跨越S. saevissima中表征mtDNA哈普洛型多样性.
- 研究道路和高速公路对本地S. saevissima种群遗传多样性的影响.
- 评估火分布在碎片化景观中的保护影响.
主要方法:
- 从大西洋森林的高速公路路边,灰尘道路和森林边界收集了S. saevissima的样本.
- 分析了细胞染色体c氧化酶子单元I (COI) 基因的部分序列,以确定mtDNA单元类型.
- 利用形态特征进行物种诊断.
主要成果:
- 观察到高哈普洛型和核酸多样性,特别是在森林边界附近.
- 鉴定出了七种不同的线粒体单质类型 (H1-H7).
- 哈普洛型H1是高速公路路边独有的,H7是尘土道路的,其他类型也很普遍.
- 哈普洛型H1的南部隔离表明存在生物地理障碍.
结论:
- S. saevissima最近出现了物种扩张,这可能是由于息地碎片化造成的.
- 特定的火类型在人类化地区普遍存在,这表明它们适应了乱的环境.
- 在大西洋森林的碎片残留物中S. saevissima的分布带来了潜在的保护挑战.
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