土著与异国情调的底层植被:对城市蜜蜂多样性的对比影响
Monique Burns1, Nicholas S G Williams1, Julian Brown1
1School of Agriculture, Food and Ecosystem Sciences, University of Melbourne, Burnley, Victoria, Australia.
概括
在城市中种植土著底层植被可以显著提高本土蜜蜂的多样性和丰富性. 本地植物支持更多的蜜蜂物种,包括专家,与偏爱欧洲蜜蜂的异国植物不同.
科学领域:
- 城市生态学 城市生态学
- 授粉者保护 授粉者保护
- 生物多样性研究是对生物多样性的研究.
背景情况:
- 城市化通过息地丧失和均质化威胁着生物多样性.
- 城市可以成为蜜蜂等授粉者的重要避难所.
- 地下植被为城市蜜蜂提供了花资源,但植物起源的影响还没有得到充分研究.
研究的目的:
- 研究植物起源 (土著与异国情调) 如何影响澳大利亚墨尔本的城市蜜蜂社区.
- 评估景观环境 (不透水面,草) 对蜜蜂多样性的作用.
- 确定有效的植物物种,以支持多样化的城市蜜蜂种群.
主要方法:
- 蜜蜂群体在墨尔本内部的32个地下植被 (土著和异国情调) 中采样了蜜蜂群体.
- 景观数据,包括不透的表面和灌的草,在200米的缓冲区内测量.
- 分析了蜜蜂的多样性 (alpha和beta) 和物种组成,与植被起源和景观背景相关.
主要成果:
- 与异国种植相比,本土种植支持蜜蜂α和β多样性的显著增加.
- 瓦伦伯吉亚毛囊 (土著) 拥有多达19种蜜蜂物种,包括专家.
- 蜜蜂 Apis mellifera (欧洲蜜蜂) 主导着异国种植,而本土蜜蜂更喜欢本土植被.
结论:
- 土著地下植物在保护本地城市蜜蜂群落方面是优越的.
- 保护战略应优先种植土著植物,以支持当地传粉者生物多样性.
- 异国种植主要有利于非本地物种,如Apis mellifera.
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