具体后果:在主要蜜蜂息地上的建设使得食距离翻倍
Robert B J Ostrom1, Margaret J Couvillon1, Bradley D Ohlinger1,2
1Department of Entomology, Virginia Tech, Blacksburg, VA, 24061,USA.
Biology open
|May 7, 2025
概括
土地开发显著增加了蜜蜂的飞行距离和能源成本,几乎翻了一番. 这凸显了息地变化对蜜蜂 (Apis mellifera) 等重要授粉者的低估影响.
科学领域:
- 生态生态学 生态生态学
- 动物行为 动物行为
- 保护生物学 保护生物学
背景情况:
- 人类诱导的土地利用变化是物种减少的一个已知的因素.
- 由于息地转换,蜜蜂 (Apis mellifera) 的特定代谢成本尚不清楚.
研究的目的:
- 量化土地开发对蜜蜂食代谢成本的影响.
- 评估蜜蜂在息地开发之前和之后的食行为变化.
主要方法:
- 对蜜蜂摇摆舞蹈进行分析,以解码食载体.
- 在 (2018-2019) 之前和 (2022) 土地开发之后,自由飞行的蜜蜂的食数据的比较.
- 量化飞行距离和能源消耗.
主要成果:
- 蜜蜂在发达地区增加了对未受干扰的微生物息地的使用 (从2.4%增加到8.4%).
- 小规模开发 (1%的食范围) 几乎使平均飞行距离 (从0.69公里到1.28公里) 翻了一番.
- 食的能源支出几乎翻了一番 (从7焦耳到13焦耳).
结论:
- 土地开发给蜜蜂寻食物带来了相当大的能源成本.
- 即使是微小的息地变化也会大大增加授粉者飞行距离和能源消耗.
- 了解这些成本对于评估发展对蜜蜂种群和生态系统健康的真正影响至关重要.
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