气候变化领域集成服务门户(CCPortal): Fewer butterflies and a different composition of bees, wasps and hoverflies on recently burned compared to unburned clear-cuts, regardless of burn severity

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DOI	10.1016/j.foreco.2020.118033
	Fewer butterflies and a different composition of bees, wasps and hoverflies on recently burned compared to unburned clear-cuts, regardless of burn severity
	Johansson V.; Gustafsson L.; Andersson P.; Hylander K.
发表日期	2020
ISSN	0378-1127
卷号	463
英文摘要	Insect pollinators are declining, which often is related to intensified agriculture. Less focus has been on the effect of forestry. In many boreal forests, clear-cutting has replaced fire as the main disturbance agent, which has been negative for many species. Therefore, prescribed burning is performed, often on clear-cuts. Knowledge on the effect of fire on pollinators is, however, scarce. We sampled pollinators and their resources in 22 burned and 15 unburned clear-cuts in and around a large wildfire area in Sweden, three years after fire. We compared potential pollinator resources as well as richness, abundance and community composition of four groups of pollinators: bees (totaling 583 individuals), wasps (1226), hoverflies (416), and butterflies (7 2 8) between burned and unburned clear-cuts. Moreover, we analyzed the effect of burn severity (depth of remaining humus). We show that the diversity and cover of potential nectar/pollen plants were clearly lower in burned clear-cuts, while potential nesting resources were higher. Butterfly richness was 67% lower and abundance 89% lower in burned clear-cuts. Differences in richness and abundance were smaller for bees, wasps, and hoverflies, but their species composition differed. We found no effect of burn severity on pollinators or their resources. We conclude that burned clear-cuts have fewer pollinators three years after fire, which is driven by a loss of butterflies. However, changes in species composition from clear-cut fires could complement the fauna of unburned sites when mixed at landscape level. Future studies should follow vegetation and pollinator communities over longer time periods following clear-cut burning. © 2020 The Authors
关键词	Fires Plants (botany)Soils Boreal forests Community composition Nectar and pollen plants Pollinators Prescribed burning Wild fire Forestry anthropogenic effect bee boreal forest butterfly clearcutting community composition environmental disturbance nectar nesting behavior pollinator prescribed burning wasp wildfire Cutting Fires Forestry Plants Pollen Prescribed Burning Resources Sweden Sweden Apoidea Hexapoda Papilionoidea
语种	英语
来源机构	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132890
推荐引用方式 GB/T 7714	Johansson V.,Gustafsson L.,Andersson P.,et al. Fewer butterflies and a different composition of bees, wasps and hoverflies on recently burned compared to unburned clear-cuts, regardless of burn severity[J]. Forest Ecology and Management,2020,463.
APA	Johansson V.,Gustafsson L.,Andersson P.,&Hylander K..(2020).Fewer butterflies and a different composition of bees, wasps and hoverflies on recently burned compared to unburned clear-cuts, regardless of burn severity.,463.
MLA	Johansson V.,et al."Fewer butterflies and a different composition of bees, wasps and hoverflies on recently burned compared to unburned clear-cuts, regardless of burn severity".463(2020).