期刊
JOURNAL OF APPLIED ECOLOGY
卷 54, 期 6, 页码 1814-1824出版社
WILEY
DOI: 10.1111/1365-2664.12860
关键词
bee abundance; bee richness; biodiversity; ecosystem service; Habanero chilli; land use; Lasioglossum; milpa; slash-and-burn; sweat bee
资金
- CONACyT-EU project FONCICyT [94293]
- SEP-CONACyT [103341, 106043]
- Deutsche Akademische Austauschdienst (DAAD)
- Helmholtz Research School for Ecosystem Services under Changing Land Use and Climate (ESCALATE) [VH-KO-613]
- Martin Luther University Halle-Wittenberg
1. Traditional tropical agriculture often entails a form of slash-and-burn land management that may adversely affect ecosystem services such as pollination, which are required for successful crop yields. The Yucatan Peninsula of Mexico has a >4000year history of traditional slash-and-burn agriculture, termed milpa'. Hot Habanero' chilli is a major pollinator-dependent crop that nowadays is often grown in monoculture within the milpa system. 2. We studied 37 local farmers' chilli fields (sites) to evaluate the effects of landscape composition on bee communities. At 11 of these sites, we undertook experimental pollination treatments to quantify the pollination of chilli. We further explored the relationships between landscape composition, bee communities and pollination service provision to chilli. 3. Bee species richness, particularly species of the family Apidae, was positively related to the amount of forest cover. Species diversity decreased with increasing proportion of crop land surrounding each sampling site. Sweat bees of the genus Lasioglossum were the most abundant bee taxon in chilli fields and, in contrast to other bee species, increased in abundance with the proportion of fallow land, gardens and pastures which are an integral part of the milpa system. 4. There was an average pollination shortfall of 21% for chilli across all sites; yet the shortfall was unrelated to the proportion of land covered by crops. Rather, chilli pollination was positively related to the abundance of Lasioglossum bees, probably an important pollinator of chilli, as well indirectly to the proportion of fallow land, gardens and pastures that promote Lasioglossum abundance. 5. Synthesis and applications. Current, low-intensity traditional slash-and-burn (milpa) agriculture provides Lasioglossum spp. pollinators for successful chilli production; fallow land, gardens and pasture therefore need to be valued as important habitats for these and related ground-nesting bee species. However, the negative impact of agriculture on total bee species diversity highlights how agricultural intensification is likely to reduce pollination services to crops, including chilli. Indeed, natural forest cover is vital in tropical Yucatan to maintain a rich assemblage of bee species and the provision of pollination services for diverse crops and wild flowers.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据