Clinal morphometric variation in Africanized honey bees under racial admixture hypothesis
作者:
DinizJoséAlexandre Felizola,
期刊:
Journal of Apicultural Research
(Taylor Available online 1996)
卷期:
Volume 35,
issue 3-4
页码: 104-109
ISSN:0021-8839
年代: 1996
DOI:10.1080/00218839.1996.11100919
出版商: Taylor&Francis
关键词: Africanized honey bees;Apis mellifera;geographical variation;morphometrics;racial admixture;founder effects;clines;biogeography;evolution;Brazil
数据来源: Taylor
摘要:
SUMMARYGeographical variation in Africanized honey bees (Apis mellifera) in Brazil usually has been attributed to distinct levels of racial admixture between African and European honey bees. In this paper, we evaluated if morphometric variation in southern and north-eastern Brazil is within the limits established by the racial admixture model based on isozymes, proposed by Loboet al.(1989) and Lobo and Krieger (1992). Most of the characters showed small deviations from expected in the same direction (larger bees) for both regions, and this may be attributed to scaling effects or to an uncertainty about average values in the introducedA. m. scutellatapopulation. Morphometric data can then be considered within the limits established by the racial admixture model, supporting the hypotheses previously proposed to explain its geographic patterns.
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