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万方数据
178 生态科学 21卷
用代数和图形技巧研究了竞争较弱或局部兼性共生的
集合群落的模型。因为竞争者的区域共存并不需要竞
争一侵占的相互替换，弱的竞争者常常是稀有种并且
易于灭绝。这和以前的强竞争的集合种群模型的结果
形成对照。互惠共生生物集台群落当生境丧失加剧时
也可能遭受突然灭绝。这些结果提示人们识别物种共
存机制以预测它们对生境丧失的应答的重要性。
另外，多物种的集合种群模型一般假定相互作用
的物种占有同一个生境斑块网络。但Gutieritz等人¨J
考察了英国北威尔士的斑块化环境中的以同一种植物
百脉根(Lotuscomiculatus)为寄主的四种鳞翅目食草
昆虫的空间分布，集合种群结构和斑块网络。他们发
现，尽管这四种昆虫以同一种植物为食，但却有着截然
不同的空间分布。从扩散率和种群周转来看，每个种
都表现出集合种群动态，但对局部和区域过程的贡献
却不相同。进一步的生境需求分析表明每个种的斑块
网络都不一样。这些结论与斑块化通过多物种的集合
种群动态促进区域共存的思想是不一致的。而且，每
个种都在自己的斑块网络中作为一个大的独立的集合
种群系统而存在。这些结论意味着自然保护应建立在
对主要物种的详细的需求分析的基础上，眦更好地理
解它们的空间动态。
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万方数据
集合群落(metacommunity)研究动态
作者： 周淑荣， 王刚
作者单位： 周淑荣(兰州大学干旱农业生态国家重点实验室;兰州大学信息科学与工程学院,兰州
,730000)， 王刚(兰州大学干旱农业生态国家重点实验室)
刊名： 生态科学
英文刊名： ECOLOGIC SCIENCE
年，卷(期)： 2002,21(2)
被引用次数： 3次

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引证文献(3条)
1.王春叶.李德志.孙玉冰.李立科.赵鲁青.潘宇.吕媛媛.赵美霞.高锦瑾 基于遥感和GIS方法的千岛湖库区集合植物
群落宏观格局初步分析[期刊论文]-华东师范大学学报（自然科学版） 2011(2)
2.常兆丰.赵明.韩福贵.仲生年 民勤沙区几种荒漠植物群落的现实生态位研究[期刊论文]-西北植物学报 2006(1)
3.李忠超.王小兰 保护生物学中若干术语的理解和辨析(2)[期刊论文]-生物学通报 2005(11)


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