Searching at different spatial scales: the foraging behaviour of the aphid parasitoid Aphidius rosae in rose bushes
Searching at different spatial scales: the foraging behaviour of the aphid parasitoid Aphidius rosae in rose bushes
复制标题
不同空间尺度的搜索：寄生蚜虫Aphidius rosae在玫瑰丛中的觅食行为
DOI：
10.1007/bf00317144
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发表时间：
1994
期刊：
影响因子：
2.7
通讯作者：
W. Völkl
中科院分区：
文献类型：
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作者：
W. Völkl
在叶、枝、丛3种不同空间尺度上分析了玫瑰蚜的搜索格局。寄生蜂女性搜索蚜虫侵染的叶子和芽密集，平均保持两倍以上的时间比未侵染的芽。补丁时间和产卵数量每拍之间的女性和女性内的不同拍摄访问高度可变。然而，在拍摄和灌木水平低产卵数普遍发现。花在不同的行为模式（搜索，休息，喂养，主机处理）的时间发生显着变化，在随后的拍摄访问的个别女性，但产卵成功不受此影响的变化。寄生蜂主要通过步行搜索叶片和枝条，而枝条之间的移动仅通过飞行进行。芽之间的旅行时间（即飞行时间）占灌木中的停留时间的不到1%。在灌木水平觅食的特点是具有很高的本地化能力，因此很少有时间浪费在寻找未受感染的芽。雌虫个体的资源利用方式与中华绒螯蟹的分布相一致。玫瑰花幼虫的田间样品取自个别玫瑰灌木丛。
The searching patterns of the aphid parasitoid Aphidius rosae were analysed at three different spatial scales: leaves, shoots and bushes. Parasitoid females searched aphid-infested leaves and shoots intensively and remained on average more than twice as long on infested than on uninfested shoots. Patch times and oviposition numbers per shoot were highly variable both between females and for different shoot visits within females. However, at the shoot and bush level low oviposition numbers were generally found. The time spent on different behavioural patterns (searching, resting, feeding, host handling) changed significantly during subsequent shoot visits of individual females but oviposition success was not influenced by this change. Parasitoids searched individual leaves and shoots mainly by walking, while moving between shoots occurred exclusively by flight. The travel time between shoots (i.e. flight time) accounted for less than 1% of the residence time in a bush. At the bush level foraging was characterized by a high ability to localize infested shoots and consequently little time was wasted in searching on uninfested shoots. The pattern of resource exploitation of individual females was consistent with the distribution of A. rosae larvae in field samples taken from individual rose bushes.