Impacts of rising temperatures and water acidification on the oxidative status and immune system of aquatic ectothermic vertebrates: A meta-analysis

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 868, P. 161580 - 161580

Published: Jan. 13, 2023

Language: Английский

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Do you remember? Within-generation and transgenerational heat stress memory of recurring marine heatwaves in threespine stickleback

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 292(2040)

Published: Feb. 1, 2025

Marine heatwaves can have major and lasting effects on organism physiology species persistence. Such temperature extremes are increasing in frequency, with consecutive heatwave events already occurring within the lifetime of many organisms. Heat stress memory (thermal priming) by individuals is a potential within-generation response to cope recurring marine heatwaves. However, whether this form biological be inherited across generations not well known. We used three-generation experiment investigate individual transgenerational single fitness-related traits using stickleback (Gasterosteus aculeatus) as model species. exposed adults (both sexes) assessed female reproductive output both parent offspring generation, survival, growth behaviour establish holistic picture ectothermic fish. Exposure single, extreme lowered output, decreased exploratory behaviour, impeded capacity respond further thermal reduced long-term survival. prior experience (heat memory) mitigated some these at an (growth) (fecundity) level, indicating that experiencing frequency part ongoing climate change may better than previously thought.

Language: Английский

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Impaired reproduction, energy reserves and dysbiosis: The overlooked consequences of heatwaves in a bivalve mollusc

Marine Pollution Bulletin, Journal Year: 2023, Volume and Issue: 193, P. 115192 - 115192

Published: June 24, 2023

Extreme events like Marine Heatwaves (MHWs) are becoming more intense, severe, and frequent, threatening benthic communities, specifically bivalves. However, the consequences of non-lethal MHWs on animals still poorly understood. Here, we exposed Manila clam Ruditapes philippinarum to MHW for 30 days provided an integrative view its effects. Our result indicated that albeit non-lethal, reduced clam's energy reserves (by reducing their hepato-somatic index), triggered antioxidant defenses (particularly in males), impaired reproduction (via production smaller oocytes females), dysbiosis digestive gland microbiota altered animals' behaviour impacting burying capacity) filtration rate. Such effects were seen also at RNA-seq (i.e. many down-regulated genes belonged reproduction) metabolome level. Interestingly, negative pronounced males than females. results show influence animal physiology multiple levels, likely fitness ecosystem services.

Language: Английский

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The consequences of heatwaves for animal reproduction are timing‐dependent

Functional Ecology, Journal Year: 2023, Volume and Issue: 37(9), P. 2425 - 2433

Published: July 4, 2023

Abstract In light of the increased frequency heatwaves due to climate change, it is crucial better understand their potential effects on animal reproduction. Heat stress can affect all aspects reproduction, including gamete development, fertilisation success, parental care and offspring survival. We may, therefore, expect these be highly sensitive timing a heatwave event relative an organism's reproductive cycle. Here, we use insect study system ( Nicrophorus vespilloides ) test whether variation in within short timeframe has differential success fitness. found that had little no effect when they occurred few days before or after mating, but were detrimental for fitness if during mating. Individuals experienced mating significantly less likely have successful breeding bout, longer smaller suffered lower survival rate. Our shows over very timescales (on order days) drastically different consequences This work provides novel insights into vulnerability organisms at stages cycle improve our ability make informed predictions about ecological under change. Read free Plain Language Summary this article Journal blog.

Language: Английский

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Short-term heat waves have long-term consequences for parents and offspring in stickleback

Behavioral Ecology, Journal Year: 2024, Volume and Issue: 35(4)

Published: April 27, 2024

Abstract Extreme temperature events, such as heat waves, can have lasting effects on the behavior, physiology, and reproductive success of organisms. Here, we examine impact short-term exposure to a simulated wave condition, parental care, in population threespine stickleback (Gasterosteus aculeatus), small fish with exclusive paternal currently experiencing regular waves. Males were either exposed (23 °C) for 5 d or held at an ideal (18 °C). Following this 5-d treatment, all males transferred 18 °C, where they completed full parenting cycle. Offspring raised °C. We found that while mass body condition unaffected wave, cortisol responses dampened across nesting cycle compared control males. In addition, had longer latency eggs hatch, lower hatching success, showed levels care behavior affecting swimming performance. Altogether, our results highlight long-term even events subsequent generations, providing insight into rapid environmental change.

Language: Английский

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Behavioral responses to climate change and chemical pollution

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Species invasion has a larger impact on stickleback reproduction than warming of breeding habitat

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 978, P. 179447 - 179447

Published: April 17, 2025

The invasion of foreign species into ecosystems is a growing human-induced problem. Global warming expected to magnify the problem by facilitating invasions and amplifying ecological impact invaders. We investigated if rising water temperature influences an invading shrimp Palaemon elegans on reproductive success native fish, threespine stickleback Gasterosteus aculeatus. Using 2 × factorial design, we found reduce probability that males built nest, defended it against perceived intruder, courted females gained matings. This reduced number offspring they produced, independently temperature. Males lost more weight in presence shrimp, which indicates can breeding cycles complete. Thus, has both direct negative effects potential for indirect delayed effects. reproduction overrode warming, most likely because adapted fluctuations shallow coastal waters, but not high abundance non-native shrimp. Interestingly, did egg hatching success, overestimates risk posed invader. Refraining from may have been adaptive strategy past, current environment where shrimp-free habitats no longer be found. past reaction norm - avoid nesting become 'evolutionary trap'. These results emphasise immediate threat pose, larger than stresses importance controlling their invasions.

Language: Английский

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Behavioral responses and transcriptional dynamics of the stream fish (Acrossocheilus fasciatus) under temperature change

Water Biology and Security, Journal Year: 2025, Volume and Issue: unknown, P. 100413 - 100413

Published: May 1, 2025

Language: Английский

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The evolution of thermal performance curves in response to rising temperatures across the model genus yeast

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(21)

Published: May 20, 2025

The maintenance of biodiversity crucially depends on the evolutionary potential populations to adapt environmental change. Accelerating climate change and extreme temperature events urge us better understand forecast responses. Here, we harnessed power experimental evolution with microbial model system yeast ( Saccharomyces spp. ) measure future warming, in real-time across entire phylogenetic diversity genus. We tracked thermal performance curves (TPCs) eight genetically ecologically diverse species under gradually increasing conditions, from 25 40 °C, for up 600 generations. found that evolving toward higher critical limits generally came at a cost, causing decrease both tolerance maximum growth performance. TPCs varied significantly between strong genotype-by-environment interactions, revealing two main trajectories: i) Warm-tolerant showed an increase optimum tolerance, consistent “hotter is wider” hypothesis. ii) Cold-tolerant other hand evolved larger breadth limits, but suffered reduced overall, generalist or “a jack all temperatures master none” In addition, cold-tolerant never reached warm-tolerant species’ upper limits. Our results show adaptive strategies are complex, highlighting need consider within when predicting managing impacts populations.

Language: Английский

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Variability in precipitation weakens sexual selection for nuptial gifts in spiders

The American Naturalist, Journal Year: 2024, Volume and Issue: 204(5), P. 453 - 467

Published: July 25, 2024

AbstractEnvironmental conditions (i.e., climatic variation) can strongly influence the cost and benefits of reproductive traits. Yet there is still no consensus on whether changing environmental strengthen or relax sexual selection. Evidence from literature suggests that highly variable environments limit mate choice investment in traits, hence relaxing selection pressures. Here, we tested this hypothesis using nuptial gift-giving spider

Language: Английский

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