当前位置: X-MOL 学术Agric. Ecosyst. Environ. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
High bee functional diversity buffers crop pollination services against Amazon deforestation
Agriculture, Ecosystems & Environment ( IF 6.0 ) Pub Date : 2021-11-25 , DOI: 10.1016/j.agee.2021.107777
Alistair John Campbell 1 , Elinor M. Lichtenberg 2 , Luísa Gigante Carvalheiro 3, 4 , Cristiano Menezes 5 , Rafael Cabral Borges 6, 7 , Beatriz Woiski Texeira Coelho 8 , Madson Antonio Benjamin Freitas 8 , Tereza Cristina Giannini 6, 7 , Kamila Leão Leão 7 , Favízia Freitas de Oliveira 9 , Thiago Sanna Freire Silva 10 , Márcia Motta Maués 1
Affiliation  

Predicting outcomes of land use change on biodiversity and ecosystem services remains a key priority for ecologists, but may be particularly challenging in diverse tropical ecosystems. Trait-based approaches are a key tool to meet this challenge. Such approaches seek functional mechanisms underpinning species’ responses to environmental disturbance and contributions to ecosystem services. Here, we use a functional trait approach to study effects of land use change on stingless bee communities and on pollination services to açaí palm (Euterpe oleracea, Arecaceae) in the eastern Brazilian Amazon. We compared traits of stingless bees visiting açaí inflorescences across a land use intensity gradient (low to high forest cover) to determine: (1) the role of traits in bee species’ responses to deforestation; (2) how deforestation affects functional composition of bee communities; and (3) whether bee traits better explain variation in açaí fruit production than species diversity metrics. We found that bee species’ responses to deforestation were non-random and predicted by body size, with small-sized bees more susceptible to forest loss, and changes in functional diversity of bee communities were important for pollination services. However, not all changes in functional diversity were associated with forest loss. Together, these results suggest that: (1) large tracts of minimally disturbed tropical rainforest are vital for the conservation of diverse stingless bee communities; (2) efficient pollination is contingent on bee species not only having divergent trait values (functional dispersion), but also traits’ relative abundance in communities (functional evenness); and (3) high functional diversity in stingless bee communities buffers açaí pollination services to loss of sensitive species. Thus, conservation strategies must focus on protecting wider biodiversity, not just ecosystem services, to guarantee conservation of native eusocial bee taxa. Doing so will safeguard crop pollination services, the pollination of native plant communities, and the long-term resilience of Amazon forest ecosystems.



中文翻译:

高蜜蜂功能多样性缓冲作物授粉服务以防止亚马逊森林砍伐

预测土地利用变化对生物多样性和生态系统服务的影响仍然是生态学家的一个关键优先事项,但在不同的热带生态系统中可能尤其具有挑战性。基于特征的方法是应对这一挑战的关键工具。这些方法寻求支持物种对环境干扰的反应和对生态系统服务的贡献的功能机制。在这里,我们使用功能性状方法研究土地利用变化对无刺蜂群落和巴西莓(Euterpe oleracea)授粉服务的影响, Arecaceae) 在巴西亚马逊东部。我们比较了跨越土地利用强度梯度(低到高森林覆盖率)访问阿萨伊花序的无刺蜜蜂的性状,以确定:(1)性状在蜜蜂物种对森林砍伐的反应中的作用;(2) 森林砍伐如何影响蜜蜂群落的功能构成;(3) 蜜蜂性状是否比物种多样性指标更好地解释了阿萨伊果实产量的变化。我们发现蜜蜂物种对森林砍伐的反应是非随机的,并通过体型预测,小型蜜蜂更容易受到森林损失的影响,蜜蜂群落功能多样性的变化对授粉服务很重要。然而,并非所有功能多样性的变化都与森林丧失有关。总之,这些结果表明:(1) 大片受干扰最小的热带雨林对于保护各种无刺蜂群落至关重要;(2) 有效授粉取决于蜜蜂物种不仅具有不同的性状值(功能分散),而且取决于群落中性状的相对丰度(功能均匀度);(3) 无刺蜂群落的高功能多样性缓冲了阿萨伊授粉服务对敏感物种的丧失。因此,保护​​战略必须侧重于保护更广泛的生物多样性,而不仅仅是生态系统服务,以保证对本地真社会蜂类群的保护。这样做将保护作物授粉服务、本地植物群落的授粉以及亚马逊森林生态系统的长期恢复力。(2) 有效授粉取决于蜜蜂物种不仅具有不同的性状值(功能分散),而且取决于群落中性状的相对丰度(功能均匀度);(3) 无刺蜂群落的高功能多样性缓冲了阿萨伊授粉服务对敏感物种的丧失。因此,保护​​战略必须侧重于保护更广泛的生物多样性,而不仅仅是生态系统服务,以保证对本地真社会蜂类群的保护。这样做将保护作物授粉服务、本地植物群落的授粉以及亚马逊森林生态系统的长期恢复力。(2) 有效授粉取决于蜜蜂物种不仅具有不同的性状值(功能分散),而且取决于群落中性状的相对丰度(功能均匀度);(3) 无刺蜂群落的高功能多样性缓冲了阿萨伊授粉服务对敏感物种的丧失。因此,保护​​战略必须侧重于保护更广泛的生物多样性,而不仅仅是生态系统服务,以保证对本地真社会蜂类群的保护。这样做将保护作物授粉服务、本地植物群落的授粉以及亚马逊森林生态系统的长期恢复力。(3) 无刺蜂群落的高功能多样性缓冲了阿萨伊授粉服务对敏感物种的丧失。因此,保护​​战略必须侧重于保护更广泛的生物多样性,而不仅仅是生态系统服务,以保证对本地真社会蜂类群的保护。这样做将保护作物授粉服务、本地植物群落的授粉以及亚马逊森林生态系统的长期恢复力。(3) 无刺蜂群落的高功能多样性缓冲了阿萨伊授粉服务对敏感物种的丧失。因此,保护​​战略必须侧重于保护更广泛的生物多样性,而不仅仅是生态系统服务,以保证对本地真社会蜂类群的保护。这样做将保护作物授粉服务、本地植物群落的授粉以及亚马逊森林生态系统的长期恢复力。

更新日期:2021-11-25
down
wechat
bug