Foraging habitats and floral resource use by colonies of long- and short-tongued bumble bee species in an agricultural landscape with kabocha squash fields
Foraging habitats and floral resource use by colonies of long- and short-tongued bumble bee species in an agricultural landscape with kabocha squash fields
复制标题
卡博查南瓜田农业景观中长舌和短舌熊蜂种群的觅食栖息地和花卉资源利用
DOI：
10.1007/s13355-012-0106-x
复制
发表时间：
2012
影响因子：
1.3
通讯作者：
紺野康夫
中科院分区：
文献类型：
--
作者：
永光輝義;筑波沙彩;後北冬美;紺野康夫
大黄蜂在农业景观中授粉和觅食农作物和野生植物的花朵。这些相互作用可能取决于景观模式和大黄蜂的特点。我们研究了长舌熊蜂和短舌熊蜂的丰度、群体密度和觅食范围。hypocritaPérez），并评估了他们对野生植物和栽培的kabocha南瓜（Cucurbita maximaDuchesne）的访问。在农田里的森林里，B。hypocritaworkers被困在树冠更频繁。在田间采集的工蜂中，由核微卫星基因型确定的全同胞群体具有更高的群体密度和更大的觅食半径。hypocrita（30.8 km-2，848 m）比inB. diversus（8.3 km− 2和723 m）。对于野生植物，工人更频繁地访问浅花在B。B.分歧。这些结果表明，不同性状的熊蜂在不同的生境中取食不同的野花。南瓜花访问两种熊蜂在类似的频率在殖民地生长的后期，当男性和新的皇后出现。访问南瓜和野花的全同胞工人的组成并不依赖于收集的工人的个人殖民地的数量，这表明觅食南瓜花是不相关的殖民地的增长。因此，熊蜂群体的生长和繁殖可能分别由各种野生植物和栽培南瓜支持。
Bumble bees pollinate and forage on flowers of crop and wild plants in agricultural landscapes. These interactions may depend on landscape patterns and bumble bee traits. We studied the abundance, colony density, and foraging range in long-tonguedBombus diversusSmith and short-tonguedB. hypocritaPérez, and evaluated their visits to flowers of wild plants and cultivated kabocha squash (Cucurbita maximaDuchesne). In forests in a farmland,B. hypocritaworkers were trapped more frequently in the canopy. Full-sibs determined by nuclear microsatellite genotypes among workers collected in the farmland showed higher colony density and a larger foraging radius inB. hypocrita(30.8 km−2and 848 m) than inB. diversus(8.3 km−2and 723 m), respectively. Regarding wild plants, workers more frequently visited shallow flowers inB. hypocritaand deep flowers inB. diversus. These results suggest that bumble bees with different traits forage on different wild flowers in different habitats. Squash flowers were visited by both bumble bee species at similar frequency in the latter period of colony growth when males and new queens appeared. Composition of full-sib workers visiting squash and wild flowers did not depend on the number of collected workers of individual colonies, indicating that foraging on squash flowers was not associated with colony growth. Thus, growth and reproduction of bumble bee colonies may be supported by various wild plants and cultivated squash, respectively.