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DNA元编码揭示了四种吃关节动物的物种 (Phrynosomatidae: Sceloporus) 的饮食成分的季节性变化

Mauricio Hernández¹, Stephanie Hereira-Pacheco², Antton Alberdi³

¹Doctorado en Ciencias Biológicas, Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico.

Integrative zoology

|August 8, 2023

概括

与它们密切相关的刺 (Sceloporus spp.) 在山区显示季节性饮食变化,消耗各种节肢动物. 在干旱季节,猎物多样性增加,影响的食策略和共存.

科学领域:

生态生态学生态生态学
动物学动物学
分子生态学分子生态学

背景情况:

饮食成分及其生态驱动因素在共存的,密切相关的物种中未得到充分研究.
了解季节性饮食变化对于解释物种在类似息地共存至关重要.

研究的目的:

在四种共存的刺物种中分子描述季节性饮食变化.
研究在山区生态系统中饮食成分的生态驱动因素.

主要方法:

用DNA元编码分析了四种的肠道内容.
收集季节性样本以评估饮食组成和猎物多样性.

主要成果:

主要消耗来自Hemiptera,Araneae,Hymenoptera和Coleoptera的关节动物.
猎物的分类学和遗传学多样性在干旱季节比雨季更高.
饮食成分因季节和海拔而异,与物种的食策略和海拔分布相关.

结论:

季节性猎物的可用性影响的饮食多样性和广度,特别是在干旱季节.
由食策略和高度驱动的饮食利基分区,促进了这些密切相关的物种的共存.
分子方法为了解野生动物中复杂的生态相互作用提供了强大的工具.

关键词:

节肢动物吃的饮食宽度饮食的宽度环境条形码环境条形码山地生态系统山地生态系统季节性饮食变化季节性饮食变化

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相关概念视频

Migration

Migration

Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.