TERRITORIALITY IN DROSOPHILA-MELANOGASTER AS A CONDITIONAL STRATEGY
TERRITORIALITY IN DROSOPHILA-MELANOGASTER AS A CONDITIONAL STRATEGY
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DOI：
10.1016/s0003-3472(05)80533-0
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发表时间：
1990-09-01
期刊：
影响因子：
2.5
通讯作者：
CACOYIANNI, Z
中科院分区：
文献类型：
--
作者：
HOFFMANN, AA;CACOYIANNI, Z
研究了影响果蝇雄性领土建立和领土防御发生率的因素，以及它们对领土和非领土雄性相对交配成功率的影响。男性更有可能建立领土时，女性或最近羽化的男性在场。领土防御的女性年龄和生殖状态的影响，更有可能在食物面积为20毫米，而不是更大或更小的。很大的食物区根本没有得到保护。领土男性捍卫大的食物区没有交配优势。雄性更倾向于保护对雌性有吸引力的产卵资源。性别比例并没有影响男性的倾向，建立领土和领土男性有交配优势，即使女性的两倍，男性的共同。男性不太可能建立和捍卫领土时，超过12个男性只有一个食物区。这与没有交配优势的男性在一个高的男性密度的领土。结果表明，D.当领地防御与交配优势相关联时，黑腹果蝇雄性更有可能表现出领地行为。
Factors affecting the establishment of territories and incidence of territorial defence in Drosophila melanogaster males were examined, as well as their influence on the relative mating success of territorial and non-territorial males. Males were more likely to establish territories when females or recently eclosed males were present. Territorial defence was not influenced by female age and reproductive state and was more likely on food areas of 20 mm than on either larger or smaller ones. Very large food areas were not defended at all. Territorial males defending large food areas did not have a mating advantage. Males were more likely to defend resources that were attractive to females for oviposition. Sex ratio did not influence the tendency of males to establish territories and territorial males had a mating advantage even when females were twice as common as males. Males were less likely to establish and defend territories when more than 12 males were present with only one food area. This coincided with the absence of a mating advantage for territorial males at a high male density. The findings suggest that D. melanogaster males are more likely to express territorial behaviour when territory defence is associated with a mating advantage.