Bombus terrestris Prefer Mixed-Pollen Diets for a Better Colony Performance: A Laboratory Study
文献类型: 外文期刊
作者: Ziyu Zhou;Hong Zhang;Shibonage K. Mashilingi;Chunting Jie;Baodi Guo;Yi Guo;Xiao Hu;Shahid Iqbal;Bingshuai Wei;Yanjie Liu;Jiandong An
作者机构:
关键词: bumblebee;colony development;food preference;nutrition;pollen;pollinator
期刊名称: Insects
ISSN: 2075-4450
年卷期: 2024 年 15 卷 4 期
页码:
收录情况: SCIE(2024版)
摘要: Pollen is a major source of proteins and lipids for bumblebees. The nutritional content of pollen may differ from source plants, ultimately affecting colony development. This study investigated the foraging preferences of Bombus terrestris in regard to four pollen species, i.e., oilseed rape, wild apricot, sunflower, and buckwheat, under laboratory conditions. The results show that B. terrestris diversified their preference for pollens; the bumblebees mostly preferred wild apricot pollen, whereas sunflower pollen was the least preferred. The colonies fed on a mixed four-pollen diet, with a protein–lipid ratio of 4.55–4.86, exhibited better development in terms of the number of offspring, individual body size and colony weight. The colonies fed with buckwheat and sunflower pollens produced a significantly lower number of workers and failed to produce queen and male offspring. Moreover, wild apricot pollen had the richest protein content (23.9 g/100 g) of the four pollen species, whereas oilseed rape pollen had the highest lipid content (6.7 g/100 g), as revealed by the P:L ratios of wild apricot, sunflower, buckwheat, and oilseed rape, which were 6.76, 5.52, 3.50, and 3.37, respectively. Generally, B. terrestris showed feeding preferences regarding different pollens and a mixture of pollens, which ultimately resulted in differences in colony development. The findings of this study provide important baseline information to researchers and developers of nutritive pollen diets for bumblebees.
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