澳大利亚昆士兰州新兴杂草的气候诱发的范围变化和风险评估
Olusegun O Osunkoya1, Mohsen Ahmadi2, Christine Perrett1
1Invasive Plant & Animal Science Unit, Biosecurity Queensland, Department of Agriculure & Fisheries EcoSciences Precinct Brisbane Queensland Australia.
Ecology and evolution
|April 3, 2025
概括
预测昆士兰州未来的入侵性杂草分布对于资源管理者来说至关重要. 气候变化将增加树木的息地,但减少多植物的息地,北方和东部沿海地区仍然存在热点.
科学领域:
- 生态生态学 生态生态学
- 生物地理学 生物地理学 生物地理学
- 气候变化生物学 气候变化生物学
背景情况:
- 侵入性外来物种的有效管理需要预测它们的建立和传播,特别是在气候变化下.
- 识别新兴杂草物种及其潜在分布是自然资源管理人员的优先事项.
研究的目的:
- 预测澳大利亚昆士兰州54种新兴杂草物种的当前和未来 (2041-2080) 分布情况.
- 确定关键的生物气候驱动因素,并在气候变化情景下评估潜在的范围转移.
主要方法:
- 使用的最大 (MaxEnt) 种类分布建模与全球生物气候变量.
- 使用曲线下的面积 (AUC) 和真实技能统计 (TSS) 验证的模型性能.
主要成果:
- 模型的性能非常出色 (AUC=0.90,TSS=0.67).
- 温度季节性和最冷月份的最低温度是物种分布的关键驱动因素.
- 预计树木的范围将增加, succulents的范围将减少,76.95%的入侵热点保持稳定.
- 昆士兰州遥远的北部和东部海岸被确定为主要的入侵热点.
结论:
- 气候变化将改变杂草的分布,对各种生长形式产生不同的影响.
- 为管理和政策制定了风险指数和优先级观察清单.
- 需要积极的管理策略来解决昆士兰州新出现的入侵性杂草.
更多相关视频
相关概念视频
Adaptations that Reduce Water Loss
25.0K
Though evaporation from plant leaves drives transpiration, it also results in loss of water. Because water is critical for photosynthetic reactions and other cellular processes, evolutionary pressures on plants in different environments have driven the acquisition of adaptations that reduce water loss.
25.0K
Responses to Drought and Flooding
10.6K
Water plays a significant role in the life cycle of plants. However, insufficient or excess of water can be detrimental and pose a serious threat to plants.
10.6K
Responses to Heat and Cold Stress
13.3K
Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.3K
Threats to Biodiversity
22.0K
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...
22.0K
What is Climate?
18.1K
Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
18.1K
Global Climate Change
24.0K
Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
24.0K


