Colony and Individual Forager Responses to Food Quality in the New World Bumble Bee, Bombus occidentalis
Colony and Individual Forager Responses to Food Quality in the New World Bumble Bee, Bombus occidentalis
复制标题
新大陆大黄蜂（Bombus occidentalis）的群体和个体采集者对食物质量的反应
作者：
H. Nguyen;J. Nieh
一个成功的觅食者激活群体觅食的能力使群体能够迅速利用短暂的资源，这是社会性进化中的一个重要创新。我们测试的能力的物种，熊蜂oceanentalis，刺激殖民地觅食不同质量的食物。然后，我们分析了成功的觅食者在巢内的行为，以了解更多关于潜在的觅食激活运动。进入觅食竞技场的蜜蜂数量与食物蔗糖浓度（0.5、1.0和2.5 M蔗糖，等于16- 65%w/w）呈正相关。觅食者花了更多的时间吸收更高浓度的溶液。然后觅食者回到巢穴，以不同的速度沿着精心设计的路径移动。有没有显着的影响，蔗糖浓度的平均觅食速度或巢内花费的时间。然而，觅食的路径内的巢（每0.1秒移动的所有距离的总和）的长度显着增加与蔗糖浓度。在2.5M和1.0M溶液中觅食的个体平均行走路径分别是在0.5M溶液中觅食的个体的1.6倍和1.4倍。这些较长的路径可能导致更多的巢伙伴接触，这是一个在B激活中很重要的因素。凤仙花的觅食，并在B.土生蚁觅食
The ability of a successful forager to activate colony foraging allows colonies to rapidly exploit ephemeral resources and is an important innovation in the evolution of sociality. We tested the ability of the species, Bombus occidentalis, to stimulate colony foraging for food varying in quality. We then analyzed the behavior of successful foragers inside the nest to learn more about potential foraging activation movements. The number of bees entering a foraging arena was positively correlated with food sucrose concentration (0.5, 1.0, and 2.5 M sucrose, equal to 16–65% w/w). Foragers spent significantly more time imbibing higher concentration solutions. Foragers then returned to the nest where they moved in elaborate paths at variable speeds. There was no significant effect of sucrose concentration on average forager velocity or time spent inside the nest. However, the length of a forager’s path inside the nest (total of all distances moved each 0.1 s) significantly increased with sucrose concentration. On average, individuals foraging on 2.5 M and 1.0 M solution walked paths respectively 1.6 fold and 1.4 longer than the paths of individuals foraging on 0.5 M solution. These longer paths could result in a greater number of nestmate contacts, a factor shown to be important in the activation of B. impatiens foragers and also reported in B. terrestris foragers.
DOI：
10.1073/pnas.90.18.8687
发表时间：
1993-09-15
影响因子：
11.1
作者：
CAMERON, SA
通讯作者：
CAMERON, SA