...用PAUP(SWOFFORD,1993)软件程序对胡蜂属系统发育关系进行研究,结果将胡蜂属分为2个大的类群,即树巢胡蜂类群(wood-nesting groups),地巢胡蜂类群(earth-nesting groups),各分为4个亚群.文中还给出了胡蜂属18种的系统发育和包括1个新种的形态描述.
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The GroupManager script library includes functionality to deal with hierarchies of groups (groups that contain other groups as members), down to six levels of nesting.
groupmanager脚本库包含处理组(包含其他组作为成员的组)的层次结构，向下可以包含6层嵌套。
It confirms that even early dinosaurs built nests in groups, similar to colonial birds nesting today.
它证实了即使是早期恐龙也是集体筑巢的，与今天殖民鸟类筑巢相似。
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