Climatic similarity and genomic background shape the extent of parallel adaptation in Timema stick insects

Nature Ecology & Evolution, Год журнала: 2022, Номер 6(12), С. 1952 - 1964

Опубликована: Окт. 24, 2022

Язык: Английский

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Non-interactive effects drive multiple stressor impacts on the taxonomic and functional diversity of atlantic stream macroinvertebrates

Environmental Research, Год журнала: 2023, Номер 229, С. 115965 - 115965

Опубликована: Апрель 25, 2023

Freshwaters are considered among the most endangered ecosystems globally due to multiple stressors, which coincide in time and space. These local stressors typically result from land-use intensification or hydroclimatic alterations, others. Despite recent advances on stressor effects, current knowledge is still limited manipulative approaches minimizing biological abiotic variability. Thus, assessment of effects real-world required. Using an extensive survey 50 stream reaches across North Portugal, we evaluated taxonomic functional macroinvertebrate responses including marked gradients nutrient enrichment, flow reduction, riparian vegetation structure, thermal stress dissolved oxygen depletion. We analyzed two (taxon richness, Shannon-diversity) trait-based diversity indices (functional dispersion), as well changes trait composition. found that had additive all metrics, with enrichment identified important three out four followed by depletion stress. Taxon Shannon-diversity richness responded similarly, whereas dispersion was driven velocity Functional composition changed along a major gradient determined depletion, positively correlated organisms possessing fast-living strategies, aerial respiration, adult phases, gathering-collector feeding habits. Overall, our results reinforce need consider complementary facets biodiversity better identify assembly processes response stressors. Our data suggest interactions may be less frequent real-word streams than predicted experiments, can facilitate mitigation strategies. By combining field integrative consideration facets, study provides new insights help assess manage rivers global change context.

Язык: Английский

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Effects of salinity on desiccation resistance in supratidal beetles: cross-tolerance or cross-susceptibility?

Estuarine Coastal and Shelf Science, Год журнала: 2025, Номер unknown, С. 109131 - 109131

Опубликована: Янв. 1, 2025

Язык: Английский

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Molecular insights into water balance disruption as a pest control strategy for Rhyzopertha dominica (F.)

Journal of Stored Products Research, Год журнала: 2025, Номер 112, С. 102593 - 102593

Опубликована: Фев. 21, 2025

Язык: Английский

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Evaluation of herbicide formulations and spreading agents on survival of the bumblebee Bombus impatiens following spray and contact exposure

Ecotoxicology, Год журнала: 2025, Номер unknown

Опубликована: Март 18, 2025

Surfactants are often included as co-formulants in the application of herbicides to aid spreading and adherence plant surfaces, but toxicity native bees has not been extensively tested. In a set progressive experiments, we evaluated effects products containing glyphosate agents, well agents alone, on bumblebees (Bombus impatiens Cresson) using parametric survival analysis. We test spreaders from multiple chemical classes including Silwet L-77© (trisiloxane), Alligare 90© (polyoxyethylene), Southern Ag SA-50© (C10–16 alcohols). report low lethality high-glyphosate herbicide formulations (Rodeo©), bee mortality increased ~20% with addition silicone-based agent (Silwet L-77©). Spreaders alone strongly affected survival: were concentration-specific did differ depending exposure method (spray vs. surfaces contacted by bees). The widely used trisiloxane-based spreader was especially hazardous, high concentrations caused rapid near-total B. impatiens. Analysis whole-bee cuticle extracts after revealed clear differences cuticular hydrocarbon profiles associated agents: alkane n-hexacosane present all detected greater relative abundance exposed 90©. To support wild conservation efforts, recommend substituting alcohol-based for siloxane-based when possible. addition, certain hydrocarbons may be useful biomarkers previous surfactants, which can investigations evaluating causes bumblebee decline across landscapes.

Язык: Английский

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A Study of Cuticular Hydrocarbons of All Life Stages in Sarcophaga peregrina (Diptera: Sarcophagidae)

Journal of Medical Entomology, Год журнала: 2021, Номер 59(1), С. 108 - 119

Опубликована: Окт. 20, 2021

Abstract Sarcophaga peregrina (Robineau-Desvoidy, 1830), a synanthropic flesh fly species found in different parts of the world, is medical and forensic importance. Traditional methods inferring developmental age rely on life stage insects morphological changes. However, once larvae reach pupal adult stage, changes would become barely visible, so that classic method be invalid. Here, we studied cuticular hydrocarbon profile S. whole cycle from larval to by GC–MS. Sixty-three compounds with carbon chain length ranging 8 36 were detected, which could categorized into four classes: n-alkanes, branched alkanes, alkenes, unknowns. As increased, alkanes dominant, content high-molecular-weight hydrocarbons variable, especially for 2-methyl C19, DiMethyl C21, docosane (C22), tricosane (C23). This study shows composition CHC used determine aid postmortem interval estimations science.

Язык: Английский

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Development of Forensically Important Sarcophaga peregrina (Diptera: Sarcophagidae) and Intra-Puparial Age Estimation Utilizing Multiple Methods at Constant and Fluctuating Temperatures

Animals, Год журнала: 2023, Номер 13(10), С. 1607 - 1607

Опубликована: Май 11, 2023

Sarcophaga peregrina (Robineau-Desvoidy, 1830) has the potential to estimate minimum postmortem interval (PMImin). Development data and intra-puparial age estimation are significant for PMImin estimation. Previous research focused on constant temperatures, although fluctuating temperatures a more real scenario at crime scene. The current study examined growth patterns of S. under (25.75 °C) (18-36 °C; 22-30 °C). Furthermore, differentially expressed genes, attenuated total reflectance Fourier-transform infrared spectroscopy, cuticular hydrocarbons during period were used age. results indicated that took longer develop had lower pupariation rate, eclosion pupal weight than group did. Moreover, we found six DEG expression profiles ATR-FTIR technology, CHCs detection methods, chemometrics can potentially both temperatures. findings support use encourage entomological evidence in forensic practice.

Язык: Английский

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Predicting the Weathering Time by the Empty Puparium of Sarcophaga peregrina (Diptera: Sarcophagidae) with the ANN Models

Insects, Год журнала: 2022, Номер 13(9), С. 808 - 808

Опубликована: Сен. 5, 2022

Empty puparium are frequently collected at crime scenes and may provide valuable evidence in cases with a long postmortem interval (PMI). Here, we the of Sarcophaga peregrina (Diptera: Sarcophagidae) (Robineau-Desvoidy, 1830) for 120 days three temperatures (10 °C, 25 40 °C) aim to estimate weathering time empty puparium. The CHC profiles were analyzed by gas chromatography-mass spectrometry (GC-MS). partial least squares (PLS), support vector regression (SVR), artificial neural network (ANN) models used time. This identified 49 CHCs carbon chain length between 10 33 demonstrate that variation tendency hydrocarbon could be time, while ANN show best predictive ability among these models. work indicated puparial has certain regularity can gain insight into estimating PMI forensic investigations.

Язык: Английский

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Temperature-mediated dynamics: unravelling the impact of temperature on cuticular hydrocarbon profiles, mating behaviour, and life history traits in three Drosophila species

Heliyon, Год журнала: 2024, Номер 10(17), С. e36671 - e36671

Опубликована: Авг. 23, 2024

In a world grappling with climate change, understanding the enduring impact of changes in temperatures on insect adult traits is crucial. It proposed that cold- and warm-adapted species exhibit specialized behavioural physiological responses to their respective temperature ranges. contrast, generalist maintain more stable metabolic developmental rates across broader range temperatures, reflecting ability exploit diverse thermal niches. Here, we explored this intricate response exposure three

Язык: Английский

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Discordant pattern between realised and fundamental saline niches in two supralittoral Ochthebius species (Coleoptera: Hydraenidae)

Ecological Entomology, Год журнала: 2022, Номер 48(3), С. 284 - 294

Опубликована: Дек. 9, 2022

Abstract Determining the saline niche of congeneric and co‐existing species that inhabit supralittoral rockpools subjected to extremely fluctuating conditions is a crucial concern understand their spatial distributions occurrence, predict ability face increasing environmental instability due climate change. Therefore, we compared realised fundamental niches Ochthebius quadricollis lejolisii (Coleoptera: Hydraenidae) on Mediterranean coast Iberian Peninsula. A was determined using field data abundance adults larvae both species. addressed with laboratory experiments by measuring survival egg‐hatching success exposed different salinity treatments (35, 60, 90, 110, 140 170 g L −1 ). Our study found discordant pattern between niches. Both are euryhalines support extreme fluctuations from 1.80 almost , O. in withstand up 180 . However, physiological tolerance greater than lejolissi survived at for more 3 days 30% success, whereas showed maximum time 2 no The eggs were tolerant adults. two studied exhibited high capacity tolerate salinity, which will be exacerbated

Язык: Английский

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