Extreme Temperatures Reduce Copepod Performance and Change the Relative Abundance of Internal Microbiota DOI Creative Commons
Quyen Dang Ha Vu, Linh Pham, Oanh Thi Truong

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT Copepods are one of the most abundant invertebrate groups in seas and oceans a significant food source for marine animals. also particularly sensitive to elevated temperatures. However, it is relatively unknown how internal microbiome influences copepod susceptibility warming. We addressed this fundamental knowledge gap by assessing key life history traits (survival, development, reproduction) changes tropical calanoid Acartia sp. response warming (26°C, 30°C, 34°C). Copepod microbiomes were analyzed using high throughput DNA sequencing V1–V9 16S rRNA hypervariable regions. performance was better at 30°C than 26°C, as indicated faster higher growth rate, fecundity. these parameters strongly decreased 34°C. recorded 1,262,987 amplicon sequence reads, corresponding 392 total operational taxonomic units (OTUs) 97% similarity. Warming did not affect OTU numbers biodiversity indices, but substantially changed relative abundance three major phyla: Proteobacteria, Actinobacteria, Bacteroidota. The thermophilic opportunistic Proteobacteria Bacteroidota increased under extreme temperatures (34°C) while Actinobacteria reduced. Changes bacteria might be related reduced growth, survival, reproduction Profiling functional role all bacterial temperature change will fundamentally advance our mechanistic understanding copepods and, more generally, invertebrates climate.

Language: Английский

Delayed feeding disrupts diurnal oscillations in the gut microbiome of a neotropical bat in captivity DOI Creative Commons
Dominik W Melville, Magdalena Meyer,

Corbinian Kümmerle

et al.

FEMS Microbiology Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Diurnal rhythms of the gut microbiota are emerging as an important yet often overlooked facet microbial ecology. Feeding is thought to stimulate rhythmicity, but this has not been explicitly tested. Moreover, role environment entirely unexplored, with rhythmic changes pH rather than feeding per se possibly affecting fluctuations. In study, we experimentally manipulated schedule captive lesser long-nosed bats, Leptonycteris yerbabuenae, dissociate photic and cues, measured fecal every two hours. We detected strong diurnal in both alpha- beta diversity well within control group. However, a delay disrupted oscillations composition, did affect pH. The some genera, such Streptococcus, which aid metabolizing nutrients, shifted accordance delayed cue were correlated For other bacterial disturbed no connection was found. Our findings suggest that proliferation bacteria matches peak times, providing evidence likely evolved optimize their metabolic support host's circadian phenotype.

Language: Английский

Citations

0
Migratory microbiomes: the role of the gut microbiome in bird migration eco‐physiology DOI Creative Commons
Pablo Capilla‐Lasheras, Alice Risely

Journal of Avian Biology, Journal Year: 2025, Volume and Issue: 2025(2)

Published: March 1, 2025

Long‐distance bird migration is one of the most metabolically and immunologically challenging feats in animal kingdom, with birds often needing to double their weight a matter days facing increased exposure novel pathogens. The physiological behavioural adaptations required survive such journeys may be facilitated by gut microbiome, diverse community symbiotic microbes that produce rare nutrients, fatty acids, immune compounds can confer rapid changing environmental conditions. However, causal role microbiome regulating physiology remains mystery. In this review, we synthesize current knowledge composition function during migration, outline possible mechanisms which changes could benefit migrants, identify future research priorities. We find active usually associated reduced diversity expansion several study‐specific taxa. Additionally, some microbial traits have been found correlate host condition fat deposits migration. there little understanding how relate parameters, molecular linking or underlying ecological, dietary, intrinsic drivers across migratory cycle. Our review draws from examples non‐migratory systems explore microbiomes adaptively regulate relevant highlight need for studies connect circulating metabolites experimental test metabolite dynamics controlled settings. Given its demands ubiquity, presents an excellent model system investigate adaptive potential natural populations.

Language: Английский

Citations

0
Making sense of the virome in light of evolution and ecology DOI Creative Commons
Megan A. Wallace, Michelle Wille, Jemma L. Geoghegan

et al.

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2025, Volume and Issue: 292(2044)

Published: April 1, 2025

Understanding the patterns and drivers of viral prevalence abundance is key importance for understanding pathogen emergence. Over last decade, metagenomic sequencing has exponentially expanded our knowledge diversity evolution viruses associated with all domains life. However, as most these ‘virome’ studies are primarily descriptive, predictors virus prevalence, diversity, their variation in space time, remains limited. For example, we do not yet understand relative ecological (e.g. seasonality habitat) versus evolutionary host phylogenies) driving diversity. Few set up to reveal factors that predict virome composition individual hosts, populations or species. In addition, ecology represent a snapshot single species viromes at point time space. Fortunately, recent have begun use data directly test hypotheses about which drive sharing By synthesizing evidence across studies, present some over-arching composition, illustrate need additional work quantify

Language: Английский

Citations

0
The costs and benefits of a dynamic host microbiome DOI Creative Commons
Mark A. F. Gillingham, Hanna Prüter, B. Karina Montero

et al.

Trends in Ecology & Evolution, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

All species host a rich community of microbes. This microbiome is dynamic, and displays seasonal, daily, even hourly changes, but also needs to be resilient fulfill important roles for the host. In evolutionary ecology, focus dynamism has been on how it can facilitate adaptation novel environments. However, an hitherto largely overlooked issue that keep its in check, which costly leads trade-offs with investing other fitness-related traits. Investigating these natural vertebrate systems by collecting longitudinal data will lead deeper insight into mechanisms shape host-microbiome interactions.

Language: Английский

Citations

3
Extreme Temperatures Reduce Copepod Performance and Change the Relative Abundance of Internal Microbiota DOI Creative Commons
Quyen Dang Ha Vu, Linh Pham, Oanh Thi Truong

et al.

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT Copepods are one of the most abundant invertebrate groups in seas and oceans a significant food source for marine animals. also particularly sensitive to elevated temperatures. However, it is relatively unknown how internal microbiome influences copepod susceptibility warming. We addressed this fundamental knowledge gap by assessing key life history traits (survival, development, reproduction) changes tropical calanoid Acartia sp. response warming (26°C, 30°C, 34°C). Copepod microbiomes were analyzed using high throughput DNA sequencing V1–V9 16S rRNA hypervariable regions. performance was better at 30°C than 26°C, as indicated faster higher growth rate, fecundity. these parameters strongly decreased 34°C. recorded 1,262,987 amplicon sequence reads, corresponding 392 total operational taxonomic units (OTUs) 97% similarity. Warming did not affect OTU numbers biodiversity indices, but substantially changed relative abundance three major phyla: Proteobacteria, Actinobacteria, Bacteroidota. The thermophilic opportunistic Proteobacteria Bacteroidota increased under extreme temperatures (34°C) while Actinobacteria reduced. Changes bacteria might be related reduced growth, survival, reproduction Profiling functional role all bacterial temperature change will fundamentally advance our mechanistic understanding copepods and, more generally, invertebrates climate.

Language: Английский

Citations

0