Thermal limits of survival and reproduction depend on stress duration: A case study of Drosophila suzukii

Ecology Letters, Journal Year: 2024, Volume and Issue: 27(3)

Published: March 1, 2024

Abstract Studies of ectotherm responses to heat extremes often rely on assessing absolute critical limits for coma or death (CT max ), however, such single parameter metrics ignore the importance stress exposure duration. Furthermore, population persistence may be affected at temperatures considerably below CT through decreased reproductive output. Here we investigate relationship between tolerance duration and severity across three ecologically relevant life‐history traits (productivity, mortality) using global agricultural pest Drosophila suzukii . For first time, show that sublethal traits, decreases exponentially with increasing temperature ( R 2 > 0.97), thereby extending Thermal Death Time framework recently developed mortality coma. Using field micro‐environmental temperatures, how thermal can lead considerable loss limited highlighting including performance in ecological studies vulnerability.

Language: Английский

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Mapping the global distribution of invasive pest Drosophila suzukii and parasitoid Leptopilina japonica: implications for biological control

PeerJ, Journal Year: 2023, Volume and Issue: 11, P. e15222 - e15222

Published: April 24, 2023

Insect pest invasions cause significant damage to crop yields, and the resultant economic losses are truly alarming. Climate change trade liberalization have opened new ways of invasions. Given consumer preference towards organic agricultural products environment-friendly nature natural control strategies, biological is considered be one potential options for managing invasive insect pests. Drosophila suzukii (Drosophilidae) an extremely damaging fruit pest, demanding development effective sustainable strategies. In this study, we assessed parasitoid Leptopilina japonica (Figitidae) as a biocontrol agent D. using ecological niche modeling approaches. We developed global-scale models both identify four components necessary derive based, target oriented prioritization approach plan programs : (i) distribution , (ii) L. (iii) degree overlap in distributions parasitoid, (iv) system each country. Overlapping suitable areas were identified at two different thresholds most desirable threshold ( E = 5%), mediated management existed 125 countries covering 1.87 × 10 7 km 2 maximum permitted 10%), land coverage was reduced 1.44 121 countries. Fly distributional information predictor variable not found improving model performance, globally, only half countries, >50% estimated. therefore suggest that specificities must included site-specific release planning aimed . This study can extended design cost-effective pre-assessment strategies implementing any program.

Language: Английский

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Acclimation, duration and intensity of cold exposure determine the rate of cold stress accumulation and mortality in Drosophila suzukii

Journal of Insect Physiology, Journal Year: 2021, Volume and Issue: 135, P. 104323 - 104323

Published: Oct. 28, 2021

The spotted wing drosophila (SWD), Drosophila suzukii, is a major invasive fruit pest. There strong consensus that low temperature among the main drivers of SWD population distribution, and invasion success also linked to its thermal plasticity. Most studies on ectotherm cold tolerance focus exposure single stressful but here we investigated how stress intensity affected survival duration across broad range temperatures (-7 +3 °C). analysis Lt50 at different (Thermal Death Time curve - TDT) based suggestion injury accumulation rate increases exponentially with stress. In accordance hypothesis, decreased temperature. Further, comparison TDT curves from flies acclimated 15, 19 23 °C, respectively, showed an almost full compensation acclimation such required induce mortality over fixed time 1 °C per lowering Importantly, this change in was uniform moderate intense exposures examined. To understand if affects same physiological systems examined markers/symptoms chill developed intensities Specifically, hsp23 expression extracellular [K+] were measured exposed (-6, -2 +2 °C) various points corresponding progression (equivalent 1/3, 2/3 or 3/3 Lt50). all triggered following 2 h recovery, patterns differed. At most (-6 gradual increase found. contrast, initial followed by dissipating expression. A perturbation ion balance (hyperkalemia) found three examined, only slight dissimilarities between treatment temperatures. Despite some differences results generally support hypothesis induces perturbation. This suggests experienced during natural fluctuating conditions additive illustrate dramatically (exponentially) decreasing (increasing stress).

Language: Английский

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Urban ecology of Drosophila suzukii

Urban Ecosystems, Journal Year: 2024, Volume and Issue: 27(5), P. 1983 - 2004

Published: June 4, 2024

Language: Английский

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Climate Warming Increases the Voltinism of Pine Caterpillar (Dendrolimus spectabilis Butler): Model Predictions Across Elevations and Latitudes in Shandong Province, China

Insects, Journal Year: 2025, Volume and Issue: 16(3), P. 249 - 249

Published: Feb. 28, 2025

The pine caterpillar (Dendrolimus spectabilis Bulter, Lepidoptera: Lasiocampidae) is a destructive insect threatening forest communities across Eurasia. pest polyvoltine, and under global warming, more favorable temperatures can lead to additional generations. Here, we simulated the voltinism current future climatic scenarios based on thermal physiology cumulative growing degree day (CGDD) model. Subsequently, revealed change patterns of along elevational latitudinal gradients. results showed that both CGDD are increasing. ranges from 1.26 1.56 generations (1.40 ± 0.07), with an increasing trend 0.04/10a. Similar trends expected continue climate scenarios, values 0.01/10a, 0.05/10a, 0.07/10a, 0.09/10a for SSP1-2.6, SSP2-4.5, SSP3-7.0, SSP5-8.5 respectively. At elevation gradients, increases all ranges, peaking at 500–1000 m latitudes 34–34.5° N. This study highlights increase in not limited low-elevation -latitude regions but predicted various elevations latitudes. These findings enhance our understanding how affects contribute management strategies, although this assumes linear relationship between temperature voltinism, without considering other ecological factors.

Language: Английский

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Warm acclimation reduces the sensitivity of Drosophila species to heat stress at ecologically relevant scales

Journal of Animal Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Thermal acclimation is presumed to affect heat tolerance, though it unclear how this should impact populations under realistic natural conditions. In study, we quantified thermal affects tolerance landscapes in Drosophila and, as a consequence, their predicted mortality the field based on modelling with dynamic algorithm. We measured of four species (D. repleta, D. hydei, simulans and virilis) acclimated five constant temperatures covering range from 18 30°C. then combined information construct for these examine survival varies over course year. Our analyses reveal effect an ecologically relevant scale, specifically through study cumulative regimes. explore different respond challenges during acclimation, generally showing increase critical temperature (CTmax) while either reducing or maintaining sensitivity (z). Furthermore, show that presents relatively modest improvement short ramping laboratory trials, response becomes stronger when estimates are translated into timescales, such annual survival. results indicate warm conditions can substantially contradicting idea ectotherms has only minor effect. work applies novel approaches studying aims highlight role ameliorating global warming.

Language: Английский

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Environmental conditions influencing seasonal population dynamics of Drosophila suzukii (Diptera: Drosophilidae) in mid‐latitude organic farms

Agricultural and Forest Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract The local population dynamics of an invasive species are important for determining proper management. Temporal and spatial distribution can influence monitoring treatment decisions, understanding climatic influences on size help predict peak numbers. Drosophila suzukii (Matsumara, 1931) is fruit pest, its seasonal vary across range. We conducted a three‐year trapping study with various modelling approaches to determine the environmental variables influencing D. all seasons in Kentucky, temperate state overwintering . Male female flies were active seasons, visiting traps located ground at plant height. Most caught wooded edge habitat crops only had more catches than forest during summer. Population was best predicted by general additive model that included average temperature 8 weeks before sampling relative humidity two sampling, which differs from other models have extremely low as most predictive weather variable. Our results indicate factors Kentucky differ those higher or lower latitudes. recommend leading up fruiting pest pressure. Further, our suggest optimal time monitor when temperatures exceed 21°C. Broadly, findings highlight need investigate these appropriate scale develop region‐specific management recommendations.

Language: Английский

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Invasive Pest and Invasive Host: Where Might Spotted-Wing Drosophila (Drosophila suzukii) and American Black Cherry (Prunus serotina) Cross Paths in Europe?

Forests, Journal Year: 2024, Volume and Issue: 15(1), P. 206 - 206

Published: Jan. 19, 2024

Both spotted-wing drosophila (SWD, Drosophila suzukii) and American black cherry (ABC, Prunus serotina) are invasive species with major deleterious effects on forest ecosystems in Europe. ABC, a host of SWD, can sustain large populations SWD turn constrain the regeneration its host. Here, we examined range shifts their overlap under future scenarios using shift models. In current–future scenarios, both ABC were predicted to undergo potential expansions Europe, suggesting that invasion risks might increase future. Climate change be driver pest host, followed by land-use availability changes; therefore, mitigating climate key for controlling invasions The relative contribution shaping ranges not only vary feeding habitats (polyphagy/oligophagy) but also abundance hosts among available reservoirs. Range current was mainly observed UK, Germany, France, Switzerland, Italy, Eastern Europe; this area is high low priority control respectively.

Language: Английский

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Determinants of Crimean–Congo haemorrhagic fever virus exposure dynamics in Mediterranean environments

Transboundary and Emerging Diseases, Journal Year: 2022, Volume and Issue: 69(6), P. 3571 - 3581

Published: Oct. 2, 2022

Crimean-Congo haemorrhagic fever (CCHF) is an emerging tick-borne human disease in Spain. Understanding the spatiotemporal dynamics and exposure risk determinants of CCHF virus (CCHFV) animal models essential to predict time areas highest transmission risk. With this goal, we designed a longitudinal survey two wild ungulate species, red deer (Cervus elaphus) Eurasian boar (Sus scrofa), Doñana National Park, protected Mediterranean biodiversity hotspot with high CCHFV vector abundance, which also one main stopover sites for migratory birds between Africa western Europe. Both ungulates are hosts principal Spain, Hyalomma lusitanicum. We sampled annually from 2005 2020 analysed frequency by double-antigen ELISA. The annual was modelled as function environmental traits approach understanding that allow us most likely places years transmission. findings show H. lusitanicum abundance fundamental driver fine-scale spatial risk, while inter-annual variation conditioned virus/vector hosts, host community structure weather variations. relevant conclusion study emergence Spain might be associated recent population changes promoting higher abundance. This work provides insights into enzootic scenarios would deepening ecology its major determinants.

Language: Английский

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Olfactory behavioral responses of two Drosophila species and their pupal parasitoid to volatiles from bananas

Pest Management Science, Journal Year: 2023, Volume and Issue: 79(11), P. 4309 - 4318

Published: June 26, 2023

Behavior-based manipulation is an essential part of Drosophila integrated pest management (IPM). Effective compounds are useful for improving the efficiency baits and development attract-and-kill or push-pull strategies to manage populations. Here, we investigated olfactory behavior two species, as well their pupal parasitoid, volatiles from bananas, identification effective control fly populations.The results showed that overripe bananas were most attractive both flies, with a higher attraction index (AI) in melanogaster than suzukii. The profiles volatile organic (VOCs) three different ripening stages compared, six VOCs selected behavioral tests. D. suzukii significantly responses isoamyl alcohol melanogaster. effects ethyl butyrate isovalerate on flies dose-dependent, lower concentrations acting repellent attractant. Isoamyl acetate, (0.005-0.05% v/v) flies. parasitoid wasp Pachycrepoidus vindemmiae was repelled by butyrate, attracted isovalerate, but no significant response at tested concentration.This study indicated odor chemical dose-dependent. acetate certain could be used repellents, whereas attractant strategy design © 2023 Society Chemical Industry.

Language: Английский

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