Nest Architecture, Prey, and Body Size in the Grass-Carrying Wasp, Isodontia auripes, at two sites in New York (Hymenoptera: Sphecidae)

IF 0.2 4区 农林科学 Q4 ENTOMOLOGY
M. Barrett, Annette K. Kang, Angelina Gomez, Devneet Kainth, S. O’Donnell
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引用次数: 1

Abstract

Abstract: Isodontia auripes [Fernald] females nested in fourteen 12-mm diameter artificial trap nests at two locations in New York State (Geneseo and Rensselaerville). We report broods of up to 14 pupae in a single chamber with an average of 5.8 pupae per chamber (previously reported range 2 - 6 pupae/chamber). Nest architecture, with plugs of finely shredded, packed grass and coarse, wound grass stems, was similar to other reports of I. auripes nests, except that only one nest contained a grass partition on the back wall of the chamber (in a case where mud-nesting wasps had preceded I. auripes). All prey items that could be identified to species were either the non-native drumming katydid, Meconema thalassinum [DeGeer], or the narrow-winged tree cricket, Oecanthus niveus [DeGeer]; M. thalassinum accounted for 71% of identified prey and is a new prey record for this wasp. Nests contained an estimated average of 11 prey per pupa, with a strongly female-biased prey sex ratio. The 116 collected pupae suffered from high pre-emergence mortality (65.5%), mostly due to the presence of parasitic flies and chalcid wasps in many nests. Adult females were larger than males in body mass and head width but did not differ in emergence time. Both male and female wasps could be found within single brood chambers, though the population was male-biased (2.4:1) and individual nests strongly favored one sex. In general, pupal cases closest to the nest entrance within a chamber were smaller than those found furthest away, suggesting size-related fitness impacts for offspring based on the order of egg laying.
在纽约的两个地点,耳异齿黄蜂的巢结构、猎物和体型(膜翅目:鞘翅目)
摘要:在纽约州的两个地点(Geneseo和Rensselaerville),耳异齿虫[Fernald]雌性嵌套在14个直径12毫米的人工陷阱巢中。我们报道了在一个小室中孵化多达14个蛹,平均每个小室5.8个蛹(之前报道的范围为2-6个蛹/小室)。巢的结构,由细碎的、填塞的草和粗糙的、缠绕的草茎组成,与其他关于金蜂巢的报道相似,只是只有一个巢的后壁上有一个草隔板(在泥巢黄蜂先于金蜂的情况下)。所有可以确定为物种的猎物要么是非本土的鼓点蟋蟀,Meconema thalassinum[DeGeer],要么是窄翼树蟋蟀,Oecanthus niveus[DeGeer];地中海M.thalassinum占已确认猎物的71%,是这种黄蜂的新猎物记录。据估计,巢中每个蛹平均有11只猎物,雌性猎物的性别比例非常偏向。116只采集到的蛹羽化前死亡率很高(65.5%),这主要是由于许多巢穴中存在寄生苍蝇和小胡蜂。成年雌性在体重和头部宽度上比雄性大,但在出现时间上没有差异。雄性和雌性黄蜂都可以在单个孵化室中找到,尽管种群偏向雄性(2.4:1),单个巢穴强烈倾向于一种性别。一般来说,在一个房间里,离巢穴入口最近的蛹比离巢穴最远的蛹小,这表明根据产卵顺序,与体型相关的适合度对后代的影响。
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来源期刊
CiteScore
1.60
自引率
0.00%
发文量
12
审稿时长
>12 weeks
期刊介绍: The Journal of the Kansas Entomological Society is a publication of the Kansas (Central States) Entomological Society, publishes research on all aspects of the sciences of entomology, and has world-wide authorship and readership.
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