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侵袭的非本土青使用不同的微息地,并沿着高度梯度改变生理学

Jack R Marchetti¹, Susannah S French¹, Emily E Virgin¹

¹Department of Biology and the Ecology Center, Utah State University, Logan, Utah, USA.

Journal of experimental zoology. Part A, Ecological and integrative physiology

|October 30, 2023

概括

侵袭性 (Eleutherus coqui) 正在扩大其在夏威夷更高处的范围. 它们的行为和生理学,包括血糖和甘油三糖的增加,可能有助于它们适应更凉爽的高海拔环境.

科学领域:

生态生态学生态生态学
侵入性物种生物学生物学
身体生理学身体生理学

背景情况:

青 (Eleutherus coqui) 是夏威夷的一个入侵物种,在20世纪80年代首次引入.
人们担心它们可能对高海拔生态系统中的本地物种产生负面影响.
目前尚不清楚coqui青是否表现出行为或生理适应性来入侵更高的海拔地区.

研究的目的:

调查目前在夏威夷的青分布情况,重点关注高海拔地区.
为了确定海拔高度是否影响子的微生境选择 (基板,地面高度).
评估与身高和性别相关的生理指标 (等离子度,氧化状态,葡萄糖,自由甘油,甘油三).

主要方法:

现场调查以绘制高海拔地区分布的地图.
微息地评估,包括基质类型和地面上的高度.
收集和分析各种生物标志物的生理样本 (血).

主要成果:

沿着道路的可基青占用率从31%增加到50%,高海拔地区的存在率在14年内从1%增加到16%.
高海拔的青利用了不同的基板,并且被发现离森林地板更近,可能是由于温暖的微气候.
血糖和甘油三水平随着海拔的上升而增加,这表明人们适应了更低的温度和更高的能量需求.
与雄性相比,雌性青表现出更高的血氧化率,dROMs,自由甘油和甘油三.

结论:

夏威夷的可基青的分布和占用量大幅扩大,包括更高的海拔地区.
特定于高度的微型息地使用和生理调整 (例如,高葡萄糖,甘油三) 似乎有助于青适应更凉爽的高海拔环境.
这些发现表明,青具有进一步入侵和影响高海拔地区本土生态系统的能力.

关键词:

环境温度环境温度伊利瑟罗达克提勒斯 (Eleutherodactylus coqui) 是一个鱼.分销销售分销销售销售销售它们是eleutherodactylus类的.葡萄糖葡萄糖葡萄糖是一种氧化状态氧化状态在场-不在场调查调查.基板是一种基板.

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