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>The response of bumblebee forage plants to 'cut and rut' restoration management of sea wall grassland on the Dengie Peninsula, Essex, England
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The response of bumblebee forage plants to 'cut and rut' restoration management of sea wall grassland on the Dengie Peninsula, Essex, England
Sea wall flood defences provide important grassland habitats for bumblebees in the UK but the abandonment of cutting could be deleterious for declining species, such as the shrill carder bee Bombus sylvarum, due to the development of floristically-poor swards and scrub encroachment. This paper reports the results from a study of bumblebees ( Bombus spp.) and forage plants in rotational summer cut plots with winter soil disturbance (cut and rut) implemented in grassland unmanaged for over 10 years on a sea wall. For the cut and rut plots, bumblebee forage-plant species richness significantly increased, but not on the control, suggesting that the cut and rut management was leading to the improvement of the tussocky sward for pollinators with the increased frequency of leguminous species (e.g. Lotus tenuis and Trifolium pratense ) favoured by long-tongued bumblebees (e.g. B. humilis, B. muscorum ). Queens of B. sylvarum were seen foraging on the cut and rut plots four years after restoration management was initiated. An increase in the floristic diversity of the cut and rut treatment was evident after four years, suggesting that there is the potential for a significant corridor of favourable bumblebee habitat to be created in the long-term on the Essex coast.
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机译：海面墙洪水防御为英国的大黄蜂提供了重要的草地栖息地，但由于开发较差的草地和磨砂侵占，因此抛弃剪切的遗弃物种可能是有害的，例如尖锐的卡车蜂炸弹。本文报告了对大黄蜂（Bombus SPP）的研究结果的结果，在轮毂壁上在草地上实施了冬季土壤干扰（CUT和RUT），在草地上在草地上实施了冬季土壤干扰（剪切和车辙）。对于削减和车辙的地块，大黄蜂牧草植物物种丰富性显着增加，但没有对照，表明削减和车辙管理导致豆科物种频率增加的粉丝师的撒尿道被改善（例如莲花Tenuis和Trifolium praatense）由长舌大黄蜂（例如b. humilis，b. muscorum）青睐。 B. Sylvarum的Queens在恢复管理后四年后觅食和车辙地块。在四年后，削减和车辙治疗的植物多样性的增加显而易见，这表明在埃塞克斯海岸的长期内，有潜在的有利大黄蜂栖息地的走廊。
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