Honek Alois, Martinkova Zdenka
Crop Research Institute, Functional Diversity in Agro-Ecosystems, Drnovská 507, Ruzyně, 161 06 Praha 6, Czech Republic.
Insects. 2022 Oct 3;13(10):902. doi: 10.3390/insects13100902.
Females and males of the abundant heteropteran species (L.) mate with the larger of the available partners. The male benefits from copulation with a large female, which is more productive than a small female. However, the benefit to females from copulation with a large male has not yet been investigated. Overwintered sexually immature adults were transferred from the field to indoors for a long day at 25 °C and subsequently kept as female-male pairs with different partner size ratios. The female lays eggs in several successive clutches. We investigated the influence of male size on the number and weight of eggs in individual clutches and the time elapsed from the transfer to their deposition. These characteristics of reproduction were first regressed on female size, and residuals of this regression were then regressed on male size. The positive effect of increasing male size on the characteristics of female reproduction manifested as a significant value of the latter regressions. The expected positive effect of increasing male body size on female reproductive characteristics was not detected. Several reasons for this deficiency are discussed.
丰富的异翅目物种（L.）的雌性和雄性会与可获得的较大配偶进行交配。雄性与大型雌性交配会受益，因为大型雌性比小型雌性繁殖力更强。然而，雌性与大型雄性交配的益处尚未得到研究。将越冬的性未成熟成虫从田间转移到室内，在25℃下给予长日照，随后以不同配偶大小比例的雌雄配对饲养。雌性会连续产下几窝卵。我们研究了雄性大小对单个卵窝中卵的数量和重量以及从转移到产卵所经过时间的影响。这些繁殖特征首先与雌性大小进行回归分析，然后将该回归分析的残差与雄性大小进行回归分析。雄性大小增加对雌性繁殖特征的积极影响在后者的回归分析中表现为显著值。未检测到雄性体型增大对雌性繁殖特征预期的积极影响。讨论了造成这种不足的几个原因。
