景观异质性和环境动态改善了建立的预测,成功殖民了小创始人群体
Arman N Pili1,2, Nathan H Schumaker3, Morelia Camacho-Cervantes4
1School of Biological Sciences, Faculty of Science Monash University Clayton 3800 Victoria Australia.
Evolutionary applications
|October 23, 2024
概括
殖民成功取决于建立人口的大小和环境背景. 较大的创始群体和在繁殖季节之前抵达异质景观,改善了像一样的物种的建立机会.
科学领域:
- 生态生态学 生态生态学
- 生物地理学是生物地理学.
- 保护生物学 保护生物学
背景情况:
- 种类殖民往往从小的创始人群开始.
- 建立成功受到殖民背景和环境条件的影响.
- 了解这些因素对于生态和保护应用至关重要.
研究的目的:
- 研究如何建立人口规模,分散事件,景观异质性和环境动态如何影响殖民成功.
- 确定小型创始人群体建立成功的关键预测因素.
主要方法:
- 使用一个空间显式,时间动态,基于个体的模拟器用于 (Rhinella marina).
- 模拟了各种各样的殖民化场景,不同的创始人数,分散事件,景观组成和环境时间.
- 分析了使用运行窗口逻辑回归对企业成功的动态预测效应.
主要成果:
- 随着创始人人数的增加,企业的成功也随之增加;20个以上的创始人带来了近乎确定的成功.
- 在20个创始人以下,景观空间异质性和动态环境条件成为突出的预测因素.
- 在繁殖季节前到达的拥挤的景观中,小型创始人群 (≤5个人) 的成功率高达18%.
结论:
- 企业规模是建立成功的一个主要决定因素,但对于较小的创业集团来说,环境非常重要.
- 纳入景观异质性和环境动态对于准确预测人口建立至关重要.
- 这些发现推动了生物地理理论的发展,并为物种再引入和入侵物种管理策略提供了信息.
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