Reproductive response of the predator Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae) to temperatures outside their ideal thermal range.

IF 1.6 3区 农林科学 Q2 ENTOMOLOGY
Enggel Beatriz S Carmo, Christian S A Silva-Torres, Jorge Braz Torres
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引用次数: 0

Abstract

Global warming has driven changes in the biology and fitness of organisms that need to adapt to temperatures outside of their optimal range to survive. This study investigated aspects of reproduction and survival of the lady beetle Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae) subjected to temperatures that varied from its optimal (28°C) to a gradual decrease (12, 14, 16, and 18°C) and increase (32, 34, 35, and 36°C) over time at a rate of 1°C/day. Fertility, fecundity, oviposition period, and survival were determined. There was a significant reduction in fertility and fecundity at temperatures below 18°C and above 34°C, whereas survival was reduced only above 34°C. Additionally, we evaluated that fecundity was the lowest when females were kept at low temperature, and when males were kept under high temperature. Therefore, if the T. notata remained for a long period under exposure to temperatures outside the ideal range, then the species could present different reproductive responses for each sex to high and low temperatures. This factor must be considered when releasing natural enemies into an area to understand the effect of temperature on the decline of a local population a few generations after release.

捕食者Tenuisvalvae notata (Mulsant) (Coleoptera: Coccinellidae)对超出其理想温度范围的温度的繁殖反应。
全球变暖导致生物的生物学特性和生存能力发生变化,它们需要适应超出其最适生存范围的温度。本研究调查了瓢虫 Tenuisvalvae notata (Mulsant)(鞘翅目:胭脂虫科)在最适温度(28°C)到以每天 1°C 的速度逐渐降低(12、14、16 和 18°C)和升高(32、34、35 和 36°C)的过程中的繁殖和存活情况。测定了繁殖力、受精率、产卵期和存活率。在温度低于18°C和高于34°C时,繁殖力和受精率明显下降,而存活率仅在高于34°C时才会下降。此外,我们还评估发现,雌性在低温条件下繁殖力最低,而雄性在高温条件下繁殖力最低。因此,如果T. notata长期处于理想温度范围之外,那么该物种的雌雄个体对高温和低温的生殖反应就会不同。在一个地区释放天敌时必须考虑这一因素,以了解温度对释放后几代当地种群数量下降的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.00
自引率
0.00%
发文量
160
审稿时长
6-12 weeks
期刊介绍: Established in 1910, the internationally recognised Bulletin of Entomological Research aims to further global knowledge of entomology through the generalisation of research findings rather than providing more entomological exceptions. The Bulletin publishes high quality and original research papers, ''critiques'' and review articles concerning insects or other arthropods of economic importance in agriculture, forestry, stored products, biological control, medicine, animal health and natural resource management. The scope of papers addresses the biology, ecology, behaviour, physiology and systematics of individuals and populations, with a particular emphasis upon the major current and emerging pests of agriculture, horticulture and forestry, and vectors of human and animal diseases. This includes the interactions between species (plants, hosts for parasites, natural enemies and whole communities), novel methodological developments, including molecular biology, in an applied context. The Bulletin does not publish the results of pesticide testing or traditional taxonomic revisions.
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