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Oviposition preferences and antennal size in carrion flies
Entomologia Experimentalis et Applicata ( IF 1.4 ) Pub Date : 2020-04-01 , DOI: 10.1111/eea.12905
Xiu’nan Pang 1 , Genting Liu 1 , Qike Wang 2 , Mark A. Elgar 2 , Dong Zhang 1
Affiliation  

Carrion‐feeding flies use odours emanating from the decomposing corpse as cues for oviposition and are described as generalists because the larvae feed on the corpses of diverse species. Whereas several features of the corpse may influence the oviposition choices of these flies, it is not known whether there is a preference for a particular species of corpse. We provided carrion flies with ovipositional (and feeding) choices in a field experiment, in which various odour sources were presented simultaneously. We found novel evidence of broadly consistent choices of carrion by flies from four families. Traps baited with decaying fish flesh captured the greatest number of individuals, whereas traps baited with decaying pig liver typically attracted the least. We also asked whether individuals captured in the various baits vary in antennal size, perhaps reflecting different capacities for odour detection. There was a trend for individuals of Lucilia sericata Meigen (Diptera: Calliphoridae) and the platystomatid collected from the traps baited with pig liver to have significantly larger antennae, whereas individuals of Muscina stabulans (Fallen) (Diptera: Muscidae) captured in traps baited with marine fish flesh had relatively longer antennae for their body size. Our data reveal a more nuanced pattern of oviposition behaviour in these generalist carrion flies, which may reflect differences in their preference of carrion with different nutrients, and in their capacity to detect particular odours.

中文翻译:

腐肉蝇的产卵偏好和触角大小

以腐肉为食的苍蝇利用腐烂的尸体散发出的气味作为产卵的线索,并且被描述为通才,因为幼虫以不同物种的尸体为食。虽然尸体的几个特征可能会影响这些苍蝇的产卵选择,但不知道是否对特定种类的尸体有偏好。我们在现场实验中为腐肉苍蝇提供了产卵(和进食)选择,其中同时呈现了各种气味来源。我们发现了来自四个科的苍蝇对腐肉的广泛一致选择的新证据。以腐烂的鱼肉为诱饵的陷阱捕获的个体数量最多,而以腐烂的猪肝为诱饵的陷阱通常吸引的个体最少。我们还询问了被各种诱饵捕获的个体触角大小是否不同,也许反映了气味检测的不同能力。从以猪肝为诱饵的诱捕器中收集的 Lucilia sericata Meigen(双翅目:Calliphoridae)和鸭嘴兽有明显更大的触角,而 Muscina stabulans(Fallen)(双翅目:Muscidae)的个体有明显更大的触角。海洋鱼肉的触角相对较长。我们的数据揭示了这些多面体腐肉蝇的产卵行为模式更加微妙,这可能反映了它们对具有不同营养物质的腐肉的偏好以及它们检测特定气味的能力的差异。Calliphoridae) 和从用猪肝作为诱饵的陷阱中收集到的鸭嘴兽具有明显更大的触角,而在用海水鱼肉作为诱饵的陷阱中捕获的 Muscina stabulans (Fallen)(双翅目:Muscidae)个体的触角相对较长。我们的数据揭示了这些多面体腐肉蝇的产卵行为模式更加微妙,这可能反映了它们对具有不同营养物质的腐肉的偏好以及它们检测特定气味的能力的差异。Calliphoridae) 和从用猪肝作为诱饵的陷阱中收集到的鸭嘴兽具有明显更大的触角,而在用海水鱼肉作为诱饵的陷阱中捕获的 Muscina stabulans (Fallen)(双翅目:Muscidae)个体的触角相对较长。我们的数据揭示了这些多面体腐肉蝇的产卵行为模式更加微妙,这可能反映了它们对具有不同营养物质的腐肉的偏好以及它们检测特定气味的能力的差异。
更新日期:2020-04-01
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