Heat wave impacts on crop‐pest dynamics are dependent upon insect ontogeny and plant resistance DOI Creative Commons
A. Nalleli Carvajal Acosta, Luke N. Zehr,

Joshua S. Snook

et al.

Ecosphere, Journal Year: 2024, Volume and Issue: 15(10)

Published: Oct. 1, 2024

Abstract Heat waves, brief periods of unusually high temperatures, are damaging to agroecosystems and increasing in frequency intensity due climate change. Despite growing appreciation for the threat that heat waves pose agricultural sustainability, we have a poor understanding what determines their impact on agroecological interactions field. Here, report results field experiment examined how timing interact with crop pest resistance influence between potato ( Solanum tuberosum ) its most pest, Colorado beetle (CPB; Leptinotarsa decemlineata ). We used open‐top chambers ceramic heaters generate wave conditions plots pest‐resistant pest‐susceptible varieties at four CPB developmental stages. then assessed performance, leaf herbivory, tuber yield. The neonate‐stage reduced larval survival by 10%, but surviving larvae were 18% larger developed 15% faster. However, these effects occurred only susceptible variety; both growth unaffected variety. Moreover, adult 15%, suggesting negative carry‐over early‐life exposure. events after neonate stage had no damage, or Our indicate crops essential impacts extreme crop‐pest dynamics. Agroecological management an increasingly variable will likely benefit from development strategies account seasonal potential continued use bred resistance, which our suggest may dampen temperatures interactions.

Language: Английский

Life Stage‐ and Sex‐Specific Sensitivity to Nutritional Stress in a Holometabolous Insect DOI Creative Commons
Leon Brueggemann, Pragya Singh, Caroline Müller

et al.

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 1, 2025

Over lifetime, organisms can be repeatedly exposed to stress, shaping their phenotype. At certain, so-called sensitive phases, individuals might more receptive such for example, nutritional stress. However, little is known about how plastic responses differ between experiencing stress early versus later in life or repeatedly, particularly species with distinct ontogenetic niches. Moreover, there may sex-specific differences due physiology. Larvae of the holometabolous turnip sawfly, Athalia rosae, consume leaves and flowers, while adults take up nectar. We examined effects starvation experienced at different stages on life-history, adult behavioural metabolic traits determine which stage specific these respond. four regimes, either no, larval, periods as larvae adults. had a prolonged development, starved females reached lower initial body mass than non-starved individuals. Males did not regardless larval starvation, suggesting ability conform well poor conditions. Adult activity was significantly impacted by starvation. Individuals similar carbohydrate lipid (i.e., fatty acid) contents individuals, potentially building energy reserves during adulthood both led reduced males. This study indicates that sensitivity depends trait under consideration. Life-history were mainly affected appeared robust metabolism mostly differed given environment, being stage- sex-specific.

Language: Английский

Citations

0
Performance and reproductive traits of the sugarcane borer Chilo infuscatellus at different temperatures DOI Creative Commons
Shangchao Zhou,

Yanlu Wang,

Xiaoyun Wang

et al.

Phytoparasitica, Journal Year: 2025, Volume and Issue: 53(2)

Published: Jan. 20, 2025

Language: Английский

Citations

0
Bioacoustic detection of four Bruchid species in bulk red and green bulk-stored beans DOI

Feifei Chang,

Xiaojun Yang,

Yang Li

et al.

Journal of Stored Products Research, Journal Year: 2025, Volume and Issue: 112, P. 102633 - 102633

Published: March 31, 2025

Language: Английский

Citations

0
Wolbachia infection facilitates adaptive increase in male egg size in response to environmental changes DOI Creative Commons

E. Carwile LeRoy,

Siyi Gao,

Maya González

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 16, 2025

Abstract Under challenging conditions such as maladapted biotic and abiotic conditions, females can plastically adjust their egg size (gamete or zygote size) to counteract fitness declines early in life. Recent evidence suggests that endosymbionts may enhance this egg-size plasticity. Possible endosymbionts’ modification of impact multiple stressors is not well explored. Therefore, study aims test (1) whether Wolbachia infection influences the plasticity parental investment under suboptimal environmental (2) depends on sex eggs. We used three lines azuki bean beetle ( Callosobruchus chinensis ): a line coinfected with wBruCon wBruOri strains, cured infected solely wBruCon, an uninfected (cured) line. These were subjected either control environment simulated climate change (elevated temperature carbon dioxide levels, eT&CO 2 ) examine effects offspring (egg its subsequent fitness, including survival, development, adult lifespan starvation. After two days exposure, parents increased male only. Larger eggs developed faster both sexes exhibited higher survival. However, was influenced by but environment, sex, infection, development time: reduced female lifespan, singly-infected lived longer than females, shorter time linked lifespan. The negative correlation between sex-specific. This first demonstrate sex-specific associated species determination systems other haplodiploid.

Language: Английский

Citations

0
Timing-dependent effects of elevated temperature on reproductive traits in the European corn borer moth DOI
Brittany A Velikaneye, Genevieve M. Kozak

Journal of Evolutionary Biology, Journal Year: 2024, Volume and Issue: 37(9), P. 1076 - 1090

Published: July 22, 2024

Abstract Elevated temperature often has life stage-specific effects on ectotherms because thermal tolerance varies throughout ontogeny. Impacts of elevated may extend beyond the exposed stage if developmental plasticity causes early exposure to carry-over or at multiple stages cumulatively produces effects. Reproductive traits be sensitive different environments experienced during development, but such have not been comprehensively measured in Lepidoptera. In this study, we investigate how alters reproduction European corn borer moth, Ostrinia nubilalis. We tested (28 °C) separately additively larval, pupal, and adult compared control temperatures (23 °C). found that pupal decreased number egg clusters produced, limited a single did significantly impact reproductive output. Furthermore, led faster transition larval altered synchrony eclosion, either by itself combined with exposure. These results suggest development borers ways, including through additive Additive across are thought less common than effects, our all need considered when predicting responses insects heatwaves.

Language: Английский

Citations

1
Repeated short-term thermal stress and its impact on reproductive fitness in parthenium beetle, Zygogramma bicolorata (Coleoptera: Chrysomelidae) DOI
Arvind Kumar Patel, Priyanka Yadav, Bhupendra Kumar

et al.

The Canadian Entomologist, Journal Year: 2024, Volume and Issue: 156

Published: Jan. 1, 2024

Abstract Insects experience variable temperature conditions in their natural environment, making constant studies unrealistic. To address this, we investigated the effects of repeated short-term heat stress (STH) and cold (STC) on pre-oviposition, oviposition, post-oviposition periods, as well fecundity egg viability parthenium beetle, Zygogramma bicolorata Pallister (Coleoptera: Chrysomelidae). We found that pre-oviposition periods were shortest under STH at optimal longest STC conditions. Conversely, oviposition temperature. Oviposition STH, whereas both Age-specific trends triangular, egg-viability plateau-shaped all temperatures. Females subjected to experienced highest peaks early adult life. lifetime longevity temperature, was maximal Regardless they maintained at, middle-aged females exhibited viability. Based these results, despite reducing overall longevity, enhanced daily females, with peak occurring Additionally, increased percentage beetles.

Language: Английский

Citations

1
Parental exposure to heat waves improves offspring reproductive investment in Tetranychus urticae (Acari: Tetranychidae), but not in its predator, Phytoseiulus persimilis (Acari: Phytoseiidae) DOI Creative Commons
Thomas Tscholl, Gösta Nachman, Bernhard Spangl

et al.

Ecology and Evolution, Journal Year: 2023, Volume and Issue: 13(11)

Published: Nov. 1, 2023

The more frequent and intense occurrence of heat waves is a challenge for arthropods because their unpredictable incidence requires fast adaptations by the exposed individuals. Phenotypic plasticity within across generations might be solution to cope with detrimental effects waves, especially fast-developing, small limited dispersal abilities. Therefore, we studied whether severe may affect reproduction pest species, spider mite Tetranychus urticae, its counterpart, predatory Phytoseiulus persimilis. Single offspring females different parental thermal origins (reared under mild or extreme waves) both species were on bean leaves over 10 days, oviposition, egg sizes, survival, escape behavior evaluated daily. total losses predators mainly via escapers very high compared prey, which makes separation between selective plastic shifted reproductive traits impossible. Predator laid smaller eggs, while consumption oviposition rates unaffected during waves. In comparison, larger prey fed produced more, but smaller, eggs due within- trans-generational effects. These advantages in comparison predator when phase support trophic sensitivity hypothesis: higher levels (i.e., predator) are sensitive stress than lower prey). Furthermore, species-specific responses reflect lifestyles. proactive mobile should selected behavioral thermoregulation spatiotemporal avoidance heat-exposed locations rather relying physiological contrast sessile prey. Whether these findings also influence predator-prey interactions population dynamics remains an open question.

Language: Английский

Citations

3
Pre-fertilization gamete thermal environment influences reproductive success, unmasking opposing sex-specific responses in Atlantic salmon ( Salmo salar ) DOI Creative Commons
Marco Graziano, Monica F. Solberg, Kevin A. Glover

et al.

Royal Society Open Science, Journal Year: 2023, Volume and Issue: 10(12)

Published: Dec. 1, 2023

The environment gametes perform in just before fertilization is increasingly recognized to affect offspring fitness, yet the contributions of male and female their adaptive significance remain largely unexplored. Here, we investigated gametic thermal plasticity its effects on hatching success embryo performance Atlantic salmon (Salmo salar). Eggs sperm were incubated overnight at 2°C or 8°C, temperatures within optimal range this species. Crosses between warm- cold-incubated compared using a full-factorial design, with half each clutch reared cold other warm temperatures. This allowed disentangling single-sex interaction when pre-fertilization temperature mismatched embryonic conditions. Pre-fertilization influenced hatch timing synchrony, matching resulted earlier hatching. Warm incubation benefited eggs but harmed sperm, reducing and, overall, did not enhance indicating vulnerability changes. We highlight sensitivity higher temperatures, that gamete acclimation may effectively buffer against deleterious fluctuations. From an applied angle, propose differential storage as tool sustainability hatcheries.

Language: Английский

Citations

3
Adaptation and carry over effects of extreme sporadic heat stress in Culex mosquitoes DOI
John Roberts Padde, Yinghui Zhou,

Yunxuan Chen

et al.

Acta Tropica, Journal Year: 2024, Volume and Issue: 260, P. 107417 - 107417

Published: Oct. 9, 2024

Language: Английский

Citations

0
Heat wave impacts on crop‐pest dynamics are dependent upon insect ontogeny and plant resistance DOI Creative Commons
A. Nalleli Carvajal Acosta, Luke N. Zehr,

Joshua S. Snook

et al.

Ecosphere, Journal Year: 2024, Volume and Issue: 15(10)

Published: Oct. 1, 2024

Abstract Heat waves, brief periods of unusually high temperatures, are damaging to agroecosystems and increasing in frequency intensity due climate change. Despite growing appreciation for the threat that heat waves pose agricultural sustainability, we have a poor understanding what determines their impact on agroecological interactions field. Here, report results field experiment examined how timing interact with crop pest resistance influence between potato ( Solanum tuberosum ) its most pest, Colorado beetle (CPB; Leptinotarsa decemlineata ). We used open‐top chambers ceramic heaters generate wave conditions plots pest‐resistant pest‐susceptible varieties at four CPB developmental stages. then assessed performance, leaf herbivory, tuber yield. The neonate‐stage reduced larval survival by 10%, but surviving larvae were 18% larger developed 15% faster. However, these effects occurred only susceptible variety; both growth unaffected variety. Moreover, adult 15%, suggesting negative carry‐over early‐life exposure. events after neonate stage had no damage, or Our indicate crops essential impacts extreme crop‐pest dynamics. Agroecological management an increasingly variable will likely benefit from development strategies account seasonal potential continued use bred resistance, which our suggest may dampen temperatures interactions.

Language: Английский

Citations

0