保护性几何结构和生殖解剖结构是Pentatomid Bug离合器大小变化的候选决定因素。

IF 2.4 2区 环境科学与生态学 Q2 ECOLOGY
American Naturalist Pub Date : 2023-10-01 Epub Date: 2023-08-25 DOI:10.1086/725917
Paul K Abram, Eric Guerra-Grenier, Jacques Brodeur, Clarissa Capko, Michely Ferreira Santos Aquino, Elizabeth H Beers, Maria Carolina Blassioli-Moraes, Miguel Borges, M Fernanda Cingolani, Antonino Cusumano, Patrick De Clercq, Celina A Fernandez, Tara D Gariepy, Tim Haye, Kim Hoelmer, Raul Alberto Laumann, Marcela Lietti, J E McPherson, Eduardo Punschke, Thomas E Saunders, Jin-Ping Zhang, Ian C W Hardy
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引用次数: 0

摘要

许多动物成串产卵。集群外围的鸡蛋可能有更高的死亡风险。我们询问了五尾虫最常见的窝大小是否是由于几何排列使卵在集群内部的比例最大化造成的。尽管最常见的窝大小与几何最优性不符,但随着窝大小的增加,蝽确实倾向于产下成群的蛋,以保护其后代比例的增加。我们还考虑了卵巢数量,这是生殖解剖学的一个方面,可能是许多五毛体的一个固定特征,是否可以解释观察到的离合器大小的分布。许多物种中最常见的离合器大小与卵巢数量的倍数相对应。然而,也有一些卵鞘数量相同的物种,它们的卵鞘大小差异很大,其中卵鞘数量的倍数并不多。在五足虫中,生殖解剖在决定窝大小一致性方面似乎比卵的质量几何结构更重要。此外,我们的分析表明,卵巢数量变化不大的动物群可能有广泛的离合器形状和大小。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Protective Geometry and Reproductive Anatomy as Candidate Determinants of Clutch Size Variation in Pentatomid Bugs.

AbstractMany animals lay their eggs in clusters. Eggs on the periphery of clusters can be at higher risk of mortality. We asked whether the most commonly occurring clutch sizes in pentatomid bugs could result from geometrical arrangements that maximize the proportion of eggs in the cluster's interior. Although the most common clutch sizes do not correspond with geometric optimality, stink bugs do tend to lay clusters of eggs in shapes that protect increasing proportions of their offspring as clutch sizes increase. We also considered whether ovariole number, an aspect of reproductive anatomy that may be a fixed trait across many pentatomids, could explain observed distributions of clutch sizes. The most common clutch sizes across many species correspond with multiples of ovariole number. However, there are species with the same number of ovarioles that lay clutches of widely varying size, among which multiples of ovariole number are not overrepresented. In pentatomid bugs, reproductive anatomy appears to be more important than egg mass geometry in determining clutch size uniformity. In addition, our analysis demonstrates that groups of animals with little variation in ovariole number may nonetheless lay a broad range of clutch shapes and sizes.

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来源期刊
American Naturalist
American Naturalist 环境科学-进化生物学
CiteScore
5.40
自引率
3.40%
发文量
194
审稿时长
3 months
期刊介绍: Since its inception in 1867, The American Naturalist has maintained its position as one of the world''s premier peer-reviewed publications in ecology, evolution, and behavior research. Its goals are to publish articles that are of broad interest to the readership, pose new and significant problems, introduce novel subjects, develop conceptual unification, and change the way people think. AmNat emphasizes sophisticated methodologies and innovative theoretical syntheses—all in an effort to advance the knowledge of organic evolution and other broad biological principles.
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