Female defence polygyny in the bumblebee wolf, Philanthus bicinctus (Hymenoptera: Sphecidae)
Female defence polygyny in the bumblebee wolf, Philanthus bicinctus (Hymenoptera: Sphecidae)
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大黄蜂狼 Philanthus bicinctus 的雌性防御一夫多妻制（膜翅目：Sphecidae）
DOI：
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发表时间：
1980
影响因子：
2.3
通讯作者：
D. Gwynne
中科院分区：
文献类型：
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作者：
D. Gwynne
摘要在挖掘蜂Philanthus bicinctus的第一个成年男性出现约一个星期前的第一个女性。羽化蜂的性比接近于1。雌性似乎只在刚开始筑巢时交配一次，而不是刚出现时。雄性在大面积的雌性地面巢穴中捍卫交配领地。领土开始时，女性第一次开始筑巢，并在整个赛季恰逢挖掘活动的女性发起休息。在白天，只有当雌性从事挖掘活动时，领地才发生。雄性在休息区内争夺某些领土;最频繁占领的雄性领土位于巢穴密度最高的地区。大约一半的雄性被排除在筑巢区领土之外。这些男性捍卫领域之间的花的蛇，女性偶尔觅食，这似乎是一个“失败者”的策略，男性无法获得筑巢区tournaments. Though没有显着差异的大小，男性的筑巢区和蛇领土，在筑巢区较大的男性通常占据领土的巢密度较高。
SummaryIn the digger wasp Philanthus bicinctus the first adult males emerge about a week before the first females. The sex ratio of emerging wasps is near unity. Females appear to mate once and do so when they first start to nest, not when they first emerge.Males defend mating territories in a large area of female ground nests. Territoriality begins when females first start to nest and throughout the season coincides with the digging activities of females initiating rests. During the day territoriality occurs only when females are engaged in digging activities.Males compete for certain territory sites within the resting area; the most frequently occupied male territories are in areas where the density of nests is highest. About half of the males are excluded from nesting area territories. Some of these males defend areas among the flowers of snakeweed where females occasionally forage; this appears to be a ‘loser’ tactic of males unable to obtain nesting area territories.Although there was no significant difference in the sizes of males on nesting area and snakeweed territories, within the nesting area larger males usually occupy territories with the higher nest densities.