Laboratory and field studies on the reproductive ecology of <i><scp>P</scp></i><i>arocneria orienta</i> (<scp>L</scp>epidoptera: <scp>L</scp>ymantriidae) in <scp>C</scp>hina

Yang, Hua; Zhang, Kun-Sheng; Yang, Weng Lang; Yang, Chunping

doi:10.1111/1748-5967.12096

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…Furthermore, short-term exposure to high-temperature stress shortened the pre-mating period and prolonged the duration of copulation in Z. tau. Most studies on insects have suggested that the premating period of insects is the shortest under suitable temperature conditions, while the duration of copulation is shortened signi cantly with increasing temperature (Katsuki and Miyatake, 2008;Yang et al, 2015). The results of the present study were different, though, which could be attributed to the fact that previous studies were conducted under constant temperature conditions while the present study was conducted using short-term exposure to high temperatures.…”

Section: Discussioncontrasting

confidence: 77%

Effect of short-term exposure to high temperatures on reproductive behaviors and physiological enzyme activities in Zeugodacus tau

Wei

et al. 2022

Preprint

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Zeugodacus tau is an economically important invasive pest of various vegetables and fruits. The present study evaluated the effects of short-term (12 h) exposure to high temperatures on the reproductive behaviors and physiological enzyme activities of Z. tau insects. It was observed that the mating rate in the treatment group increased significantly at temperatures of 34 °C and 38 °C compared to the control. The highest mating rate of the control♀-treatment♂ mating was 60.00%, which occurred at 34 °C, while no mating occurred until 24 h, at 42 °C. Moreover, the short-term application of high temperatures reduced the pre-mating period and prolonged the duration of copulation. The treatment♀-treatment♂ mating had the shortest pre-mating period of 39.00 min and the longest copulation duration of 678.00 min at 38 °C. Mating after the short-term application of high temperature exerted adverse effects on the reproduction of females, while mating with males exposed at 34 °C and 38 °C significantly increased female fecundity. At 40 °C, the treatment♀-control♂ mating presented the lowest fecundity and hatching rate of 293.25 eggs and 25.71%, respectively. The control♀-treatment♂ presented the highest fecundity of 1016.75 eggs at 38 °C. Furthermore, the SOD, POD, and CAT activities exhibited significant changes (increase or decrease) after the short-term exposure of insects to high temperatures. The SOD activity changed the most at 38 °C, with the females and males exhibiting 3.64 times and 3.10 times the SOD activity, respectively, compared to control. The AchE, CarE, and GST activities first increased and then decreased with the increase in temperature. The CarE activity changed the most at 38 °C, with the females and males exhibiting 7.81 times and 1.69 times increased activities, respectively. In conclusion, mating strategy and physiological stress are important adaptive mechanisms of Z. tau under short-term heat stress, and the adaptation is sex-specificity.

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Section: Discussioncontrasting

confidence: 77%

Effect of short-term exposure to high temperatures on reproductive behaviors and physiological enzyme activities in Zeugodacus tau

Wei

et al. 2022

Preprint

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“…Short-term exposure to high-temperature stress shortened the pre-mating period and prolonged the duration of copulation in Z. tau. Most studies have suggested that the pre-mating period of adults is the shortest at suitable temperatures, while the duration of copulation is shortened significantly with an increase in temperature (Katsuki and Miyatake, 2008;Yang et al, 2015). In this study, we discovered disparate results.…”

Section: Discussionmentioning

confidence: 65%

Effect of short-term exposure to high temperatures on the reproductive behavior and physiological enzyme activities in the fruit fly Zeugodacus tau (Walker)

Wei²,

Li³

et al. 2023

Front. Physiol.

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Zeugodacus tau is an economically important invasive pest of various vegetables and fruits. In this study, we evaluated the effects of short-term (12 h) exposure to high temperatures on the reproductive behaviors and physiological enzyme activities of adult Z. tau flies. When compared to the control group, the mating rate in the treated group increased significantly after exposure to 34°C and 38°C. After 34°C exposure, the mating rate of the control♀-treated♂ mating was the highest (60.0%). The use of high temperatures for a short period reduced the pre-mating period and lengthened the duration of copulation. After 38°C exposure, the mating between treated♀ and treated♂ had the shortest pre-mating period of 39.0 min and the longest copulation duration of 67.8 min. Mating after a brief exposure to high temperatures had a negative impact on female reproduction, whereas mating with males who previously had a brief exposure to 34°C and 38°C significantly increased female fecundity. After 40 °C exposure, the mating between treated♀ and control♂ showed the lowest fecundity and hatching rate of 293.25 eggs and 25.71%, respectively. The mating between control♀ and treated♂ showed the highest fecundity of 1,016.75 eggs after exposure to 38°C. The SOD, POD, and CAT activities exhibited significant changes (increase or decrease) after the short-term exposure of Z. tau adults to high temperatures. After being exposed to 38°C, SOD activity increased by 2.64 and 2.10 times in females and males in the treated group, respectively, compared to the SOD activity in the control group. The AchE, CarE, and GST activities first increased and then decreased with the increase in temperature. CarE activity changed the most after exposure to 38°C, with females and males in the treated group increasing by 7.81 and 1.69 times, respectively, compared to the activity in the control group. In conclusion, mating strategy and physiological stress are important adaptive mechanisms of Z. tau for adapting to short-term heat stress in a sex-specific manner.

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Meta‐analytical evidence that males prefer virgin females

Richardson,

Zuk

2023

Ecology Letters

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Males are often predicted to prefer virgin over non‐virgin females because of the reduced risk of sperm competition. Does this prediction hold across studies? Our systematic meta‐analysis of 138 studies, mainly conducted in invertebrates, confirms that males generally prefer virgin females. However, males preferred virgin females even in species with last male sperm precedence, suggesting that sperm competition alone does not drive male preferences. Furthermore, our results suggest that males may reject mated females even when no alternative exists. Preference for virgins is unlikely to influence female reproductive success since virginity cannot be selected for, but strong preference for virgin females could swamp or reinforce selection on other traits. Our results add to growing evidence that males are not indiscriminate in mating. However, given the unexplained heterogeneity in effect sizes, we urge caution in assuming that males will prefer virgins and recommend considering the natural context of mating decisions.

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Laboratory and field studies on the reproductive ecology of Parocneria orienta (Lepidoptera: Lymantriidae) in China

Cited by 4 publications

References 11 publications

Effect of short-term exposure to high temperatures on reproductive behaviors and physiological enzyme activities in Zeugodacus tau

Effect of short-term exposure to high temperatures on reproductive behaviors and physiological enzyme activities in Zeugodacus tau

Effect of short-term exposure to high temperatures on the reproductive behavior and physiological enzyme activities in the fruit fly Zeugodacus tau (Walker)

Meta‐analytical evidence that males prefer virgin females

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