关于“海南岛霸王岭热带山地雨林群落结构及树种多样性特征的研究”一文中几个问题的讨论

1　树木高度级的划分植声 :按每 3m来划分树木高度级进行研究 ,人为性太强 ,易把一些规律性结果冲淡 ,划分时应考虑植物的生活型 ,植物在群落中是按其生活型来分层次的。臧润国 :考虑以 3m为高度级来划分 ,主要是当时与霸王岭林业局的高工杨秀森商量后确定的。因为我们考虑到霸王岭热带山地雨林大多数的灌木在 3m高度以内 ,另外据胡玉佳等 ( 1 992 )将海南岛混合雨林乔木划分为 3层的标准 ,其下层小乔木的高度又在 3～ 1 0 m,可见 3m是海南岛热带林中乔灌木区分的一个大致的高度界限 ,故本文以 3m为基本分级。其实以几米为分级标准 ,国内外…     

ANESTHESIA IN CARDIAC OPERATIONS

When the team of physicians—cardiologist, anesthesiologist and surgeon—who are to attend a patient during a cardiac operation study the patient together in preoperative evaluation, they are better able to anticipate emergencies that might arise during the procedure and to deal with them without loss of time for discussion.The principal problems of the anesthesiologist during operation are maintenance of adequate ventilation and oxygenation, maintenance of the lightest level of anesthesia possible (the minimum degree of poisoning), and maintenance of adequate circulation. The cardiologist must maintain constant observation of the heart rate and rhythm and be alert for early signs of myocardial oxygen deficiency.     

NOTES ON SOME ANTS IN NORTHERN SOMALIA

The paper describes observations made over a period of two years on the feeding habits, general ecology and distribution of five species of ants (harvester-, stink-, soldier-, tree-, and sugar-ants) in Northern Somalia, p-incipally in the plains and bushland of the Haud.
Harvester and stink ants are discussed in some detail, and some dimensions of excavated nests and runways are given. The occurrence of associated insects is noted and the ecological roles of seed-eating and predatory ants (particularly in relation to termites) are discussed.
There are notes on the climate and topography of the region, and a glossary of vernacular names is appended.     

有关节肢动物分类的几个问题

本文简要讨论了近年来有关节肢动物特别是昆虫高级分类研究中争论较大的几个关键问题,包括节肢动物的分类基础、“单肢亚门Ｕｎｉｒａｍｉａ”的单系性、六足总纲的单系性及昆虫纲（狭义）Ｉｎｓｅｃｔａ ｓ．ｓｔｒ．的范围等,以期引起我国动物学者的注意与重视。