The Distribution and Decline of British Bumble Bees (Bombus Latr.)
The Distribution and Decline of British Bumble Bees (Bombus Latr.)
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英国大黄蜂（Bombus Latr.）的分布和衰落
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
P. Williams
中科院分区：
文献类型：
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作者：
P. Williams
总结建议最近减少的某些种类的大黄蜂的分布范围进行了调查的数据收集的大黄蜂分布图计划，使用数值分类的方法。定义了三个主要的地理要素和四个地理区域，并描述了它们的组成和分布的变化。发现1960年后记录的两种地理成分的分布范围大幅减少（特别是南方本地种：熊蜂（L.），B。sylvarum（L.），B。ruderatus（F.）和B。humilis Ill.），这导致了一个新的中央贫困地区的出现，包括英格兰中部的23个副县。
SummaryThe suggested recent decrease in the distributional ranges of certain species of bumble bees was investigated in the data collected by the Bumblebee Distribution Maps Scheme, using a numerical classificatory approach. Three major biogeographic elements and four biogeographic regions are defined, and changes in their composition and distribution described. Large reductions in the distributional ranges recorded after 1960 were found for two of the biogeographic elements (especially for the Southern Local Species: Bombus subterraneus (L.), B. sylvarum (L.), B. ruderatus (F.) and B. humilis Ill.), which have resulted in the emergence of a new Central Impoverished Region covering 23 vice-counties in Central England.