气候稳定的多尺度物种分布模型,以支持加利福尼亚州长角鸟的恢复
William T Bean1, H Scott Butterfield2, Jeanette K Howard3
1California Polytechnic State University - San Luis Obispo San Luis Obispo California USA.
Ecology and evolution
|June 21, 2024
概括
在加利福尼亚州确定长角恢复息地需要了解气候和细度需求. 未来的适用性取决于历史生态假设,在多个模型中确定了共识领域.
科学领域:
- 生态生态学 生态生态学
- 保护生物学 保护生物学
- 空间建模 空间建模
背景情况:
- 长角鸟种群已经经历了显著的范围崩.
- 了解息地要求对于物种恢复至关重要.
- 加利福尼亚州的长角鸟种群面临着由于气候变化和息地供应的挑战.
研究的目的:
- 在考虑当前和未来的气候场景的情况下,在加利福尼亚州确定适合长角 (Antilocapra americana) 恢复的息地.
- 为了比较两种不同的假设,关于长角生物的历史生态及其对基于气候的分布模型的影响.
- 评估多种息地适合性模型之间的共识,以优先考虑恢复区域.
主要方法:
- 结合了两个基于气候的分布模型和三个更细微的适应性模型.
- 使用共识方法来确定适合气候的地区.
- 开发了三种不同的息地适应性模型:整体,步骤选择功能和专家驱动.
- 基于历史长角生态的迁移和利基减少假设的模型结果进行比较.
主要成果:
- 加利福尼亚州长角鸟的未来气候适合性高度依赖于所使用的基础生态假设.
- 迁移假设预测没有适合的未来气候,而利基减少假设预测扩张.
- 在全州范围内,在所有测试的适合性模型中确定了共识的领域.
- 该研究强调了确定极端范围崩和细度需求的物种息地的挑战.
结论:
- 多方法,多假设方法对于确定息地建模中的共识领域和知识差距是有价值的.
- 了解pronghorn上部热容忍度和历史迁移模式对于恢复工作至关重要.
- 通过这项研究确定了优先考虑的共识领域,可以帮助加利福尼亚州和干旱的西南地区的长角恢复计划.
相关概念视频
Conservation of Declining Populations
9.6K
Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.
9.6K
Conservation of Small Populations
13.1K
Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
13.1K
Habitat Fragmentation
17.5K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
17.5K
Threats to Biodiversity
22.2K
There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
22.2K
Distribution and Dispersion
21.7K
To understand intra-specific interactions in populations, scientists measure the spatial arrangement of species individuals. This geographic arrangement is known as the species distribution or dispersion. Highly territorial species exhibit a uniform distribution pattern, in which individuals are spaced at relatively equal distances from one another. Species that are highly tied to particular resources, such as food or shelter, tend to concentrate around those resources, and thus exhibit a...
21.7K
Speciation Rates
21.2K
Overview
21.2K


