Insect functional traits on arable land, Finland 2020

The data contains functional trait values of bumblebee, butterfly and carabid beetle communities in 78 fields, representing eight crop types (spring cereal, winter cereal, faba bean, oilseed crops, cabbage, ley, arable pasture and long-term fallows) and two production methods (organic and conventional) in Southern Finland. Information on arable land cover-% around the central points of the study sites (within 250 m and 500 m radii) is also included. Butterfly species traits are wingspan, adult habitat breadth, and overwintering stage. Bumblebee species traits are body length, tongue length, and spring emergence time (month). Carabid beetle species traits are flight ability, feeding preference and overwintering stage. For butterflies and bumblebees, the trait values of individuals observed on a field were averaged to get the community-weighted mean for the field. For carabid beetles, the proportions of individuals in the groups of poor dispersers, carnivores and adult hibernators were calculated for each field. The data is related to the article 'Toivonen, M., Huusela, E., Hyvönen, T., Järvinen, A., Kuussaari, M. (2024) Crop type rather than production method determines functional trait composition of insect communities on arable land in boreal agricultural landscapes. Agricultural and Forest Entomology. DOI: 10.1111/afe.12629.' The data was collected in Justfood project funded by the Strategic Research Council of the Academy of Finland (decision no. 352638).

本数据集涵盖芬兰南部78块农田的熊蜂、蝴蝶与步甲科甲虫群落的功能性状（functional trait）值，所涉农田包含8类作物类型（春谷类作物、冬谷类作物、蚕豆、油料作物、甘蓝、人工草地、耕地牧场及长期休耕地）与2种生产模式（有机种植与常规种植）。数据集同时收录研究样地中心点周边（半径250米与500米范围内）的耕地覆被百分比数据。
各物类的功能性状信息如下：蝴蝶物种性状包括翅展、成虫生境宽度及越冬阶段；熊蜂物种性状包括体长、喙长及春季出现时间（月份）；步甲科甲虫物种性状包括飞行能力、取食偏好及越冬阶段。
针对蝴蝶与熊蜂群落，将单块农田内观测到的所有个体的性状值取平均，即可得到该农田的群落加权均值；针对步甲科甲虫群落，则需计算每块农田中扩散能力弱类群、肉食性类群与成虫越冬类群的个体占比。
本数据集关联学术论文：Toivonen, M., Huusela, E., Hyvönen, T., Järvinen, A., Kuussaari, M. (2024) 《作物类型而非生产方式决定北方农业景观中耕地昆虫群落的功能性状组成》，刊载于《农业与森林昆虫学（Agricultural and Forest Entomology）》，DOI: 10.1111/afe.12629。
本数据集采集自芬兰科学院战略研究委员会（Strategic Research Council of the Academy of Finland）资助的Justfood项目，项目编号为352638。