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城市化带来的环境变化导致蜜蜂氨基酶N活性减少

Andrea Ferrari¹, Silvia Caccia², Carlo Polidori¹

¹Department of Environmental Science and Policy (ESP), University of Milan, via Celoria 26, 20133, Milan, Italy.

Conservation physiology

|December 13, 2024

概括

城市化对蜜蜂产生负面影响,降低了消化酶阿米诺酶N (APN) 的活性. 这表明城市环境可能会损害蜜蜂的消化,可能是由于食物来源的变化.

科学领域:

生态生态学生态生态学
环境科学环境科学
动物学动物学

背景情况:

蜜蜂 (Apis mellifera) 是面临城市环境压力因素的重要受管理的授粉者.
消化酶活性,如阿米诺酶N (APN),可以作为动物压力的生物标志物.
以前的研究表明APN对压力的反应,但它在城市蜜蜂健康中的作用尚未被探索.

研究的目的:

调查城市化对蜜蜂中肠氨基酶N (APN) 活动的影响.
评估APN活动作为暴露在城市环境中的蜜蜂生理压力的潜在指标.
探索城市化梯度,环境因素和蜜蜂的APN活动之间的关系.

主要方法:

蜜蜂在意大利米兰的一个城市化梯度上采集了蜜蜂的样本.
在不同的pH值和温度条件下测量和表征了中肠APN活性.
分析了APN活动和城市化水平之间的相关性,包括城市热岛 (UHI) 效应和绿色空间组成.

主要成果:

来自温度较高的城市地区的蜜蜂中,APN活性显著降低.
草原占比较高,城市公园占比较低与APN活动增加有关.
仅仅城市热岛 (UHI) 效应并不能直接解释观察到的APN活动的减少.

结论:

严重的城市条件似乎减少了蜜蜂的APN活动,这表明消化能力的潜在损害.
虽然UHI的影响没有直接影响,但城市化地区粮食来源的贫困可能是其中的一个因素.
作为评估城市化对蜜蜂生理影响的生物标志物,APN活动显示出前景.

关键词:

氨基酶 n n 氨基酶 n 蜂蜜蜜蜂蜂蜜蜂蜂蜜蜂蜂蜜蜂蜜蜂蜜蜂蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂蜜蜂昆虫中肠昆虫中肠土地使用变化土地使用变化城市化的城市化.

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