地理空间分析评估临灭绝的Lilium mackliniae Sealy的分布模式和预测模型:以支持管理决策
Kangujam Premkumar1, Vivek Vaishnav2, Sanjay Singh3
1Forest Ecology and Climate Change Division, Forest Research Institute, Dehradun, Uttarakhand, 248195, India.
Environmental monitoring and assessment
|August 12, 2023
概括
临灭绝的西鲁伊百合 (Lilium mackliniae) 在印度马尼普尔面临息地威胁. 保护工作至关重要,海拔和温度被确定为影响其分布的关键因素.
科学领域:
- 植物学和保护生物学 植物学和保护生物学
- 生态建模和生物多样性热点
背景情况:
- (Lilium mackliniae Sealy) 是一个临灭绝的特有物种,仅限于印度马尼普尔邦的希鲁伊山脉,位于印度-缅甸生物多样性热点区域内.
- 息地碎片化导致其人口急剧减少,迫切需要采取保护战略.
- 这种物种对当地部落社区具有重要的文化和神圣价值,这些部落社区历来在国家公园管理其种群以进行现场保护.
研究的目的:
- 评估对Lilium mackliniae Sealy唯一息地的潜在威胁.
- 确定影响物种分布的关键环境和地理空间变量.
- 为有效的保护和管理规划提供关键数据.
主要方法:
- 使用19个生物气候和6个地理空间变量,采用了基于最大的建模.
- 该模型在65个Lilium mackliniae Sealy的真实存在数据点上进行了训练.
- 使用曲线下的面积 (AUC) 度量验证了模型的准确性,达到0.989.9的得分.
主要成果:
- 高度范围成为Lilium mackliniaeSealy分布的最重要的预测指标.
- 土地使用类别和年度温度范围也被确定为影响物种分布的关键变量.
- 该模型预测该物种在同一地区内有一个连续的合适息地,表明了局部保护的潜力.
结论:
- 这项研究强调了Lilium mackliniae Sealy对息地变化和气候变化的脆弱性.
- 高度,土地使用和温度是该物种生存的关键因素,需要集中管理.
- 这些发现为制定有针对性的保护和管理计划提供了必要的见解,以保护这个危的特有百合.
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