Aquatic ecosystem indices, linking ecosystem health to human health risks

Biodiversity and Conservation, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Abstract The good functioning of aquatic ecosystems is essential for providing diverse ecosystem services that benefit humans. degradation health due to continuous stressors, such as climate change or water pollution, leading an increase in human risks and well-being. Indicators have been developed determine from recreational drinking water. Still, a general application linking has not done. We here reviewed indicators indices applied assess the their links with risk evaluated extent which can witness A total 245 articles were reviewed, consisting 185 on assessment 60 Out 65 described, we use several parameters relevance evaluate risks, including physico-chemical parameters, bioindicators, contaminants, pathogens, therefore covering various sources disturbance. Based our assessment, propose set would allow inclusion well-being (e.g. coliforms, algae, pH, nutrients, chemical compounds, services). Measuring these should be incorporated into future studies understanding linkage health.

Language: Английский

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Non-invasive eDNA reveals the ecological and genetic status of the Western Capercaillie (Tetrao urogallus aquitanicus) in the Eastern Pyrenees

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 18, 2025

ABSTRACT The Anthropocene era is expected to bring about significant biodiversity and habitat loss for many species. These geographical changes, whether driven by climatic or anthropogenic factors, are likely lead considerable alterations in population size, structure, genetic diversity. Monitoring natural populations therefore essential assess these impacts enable informed conservation strategies threatened Western Capercaillie ( Tetrao urogallus , L. 1758) has a widespread distribution Boreal forests but fragmented mountainous regions of the Palearctic, locally climate change, destruction, human disturbance. Our study focused on eastern subspecies T. u. aquitanicus, which endemic Pyrenees mountains. monitoring this relied direct methods no information had been generated so far. Here, we conducted molecular based 229 non-invasive samples (faeces) ecological status local Catalan Nature Reserves Pyrénées-Orientales (Occitanie region, France). At individual level, assessed multi-locus genotypes, sexing, levels inbreeding, stress level (Fecal Corticosterone Metabolites; FCMs) diet. sex ratio, diversity structure. We identified 62 individuals with balanced ratio estimated census size 79 [95%CI = 68–92] area. Genetic was low suggested inbreeding levels. FCM were lower birds areas considered as disturbed humans metabarcoding approach indicated structuring diet composition at reserve scale, exhibiting feeding behavior upon only one few plant estimate higher figures from lek counts, provided additional insights population, establishing baseline that will support management plans.

Language: Английский

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Climate Heterogeneity Shapes the Diversity of Specialist Beetle Species Across Mountains in Malaysia

Biotropica, Journal Year: 2025, Volume and Issue: 57(1)

Published: Jan. 1, 2025

ABSTRACT The importance of maintaining biodiversity is well recognized, although the impacts ongoing climate crisis on are still poorly understood for many groups, including insects. Therefore, objectives this study (1) to identify climatic niche breadth beetle species among nine different Malaysian mountains, (2) characterize role environmental (climatic) factors in determination, and (3) relate mountain heterogeneity. Outlying Mean Index (OMI), which compares multivariate distance between average conditions a given area specific range each occurs (marginality), was used quantify parameters. Among 875 species, only 130 presented significant responses tested parameters, 113 were identified as specialists, whereas 17 classified generalists environment. remaining 745 not related variables under study. Mountains with more heterogeneous climates greater variation sampling sites or elevations had fewer specialist beetles. Conversely, mountains homogeneous number

Language: Английский

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Abrupt physico-chemical changes in the limnology of Pyrenean mountain lakes necessitate urgent management actions

Regional Environmental Change, Journal Year: 2025, Volume and Issue: 25(1)

Published: Jan. 28, 2025

Abstract Mountain lakes are rare ecological niches supporting unique species assemblages and important sources of safe drinking water for wildlife, livestock humans. Located at high altitude, these vulnerable to environmental stressors such as climate or land-use change, impacting their ecosystem functions. However, although trends in temperature physico-chemical composition have been fairly well studied large mountain lakes, the same cannot be said small- medium-sized shallow lakes. Here, using measurements chemistry 25 Pyrenean records 14 them, we show that conditions which prevail littoral zones undergone rapid changes between 2007 2023. Over this 16-year period, found that, on average, duration ice-cover period decreased by 58.35 days, average annual rose 1.65 °C. We also a significant overall decrease pH, total organic carbon nitrogen, increase hardness dissolved potassium. Our results demonstrate abiotic alterations with potential negative implications humans, functioning. Likely consequences include declines aquatic biodiversity, degradation quality increased health risks from harmful algal blooms. Policy must urgently acknowledge impacts global change mountains order take necessary management actions.

Language: Английский

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Integrated Social Development on Analyzing the Distribution, Risk and Source Apportionment of Antibiotics Pollution in Mountainous Rivers

Water Research X, Journal Year: 2025, Volume and Issue: 28, P. 100327 - 100327

Published: March 1, 2025

Language: Английский

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Climatic Influence on Growth Performance of Abies spectabilis in the Himalayas

Forests, Journal Year: 2025, Volume and Issue: 16(3), P. 473 - 473

Published: March 8, 2025

Climate change has affected forest ecosystems across the world over past century. However, its impact is particularly high in Himalayas due to increasing temperatures, extreme precipitation events, and regional droughts. In this context, a review of current stage research was deemed necessary understand adaptation key conifer species climate variability Central Himalayas. Hence, we conducted systematic published peer-reviewed journal articles addressing growth performance Abies spectabilis (D. Don) Spach From review, three main patterns response have emerged: positive correlation radial tree with temperature previous growing seasons, limitation by winter temperature, or moisture pre-monsoon season. Overall, results indicate an elevation-dependent sensitivity, crucial role availability, seasonal shifts climate–growth relationships, reflecting species’ adaptability changing conditions. Our revealed that studies on wood anatomical traits A. are still rare. The tree-ring shows complex variability, as well decreasing trends distribution range.

Language: Английский

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A general methodological framework for hazard assessment in remote mountain areas combining geomorphological mapping with UAV survey

Journal of Mountain Science, Journal Year: 2025, Volume and Issue: 22(3), P. 763 - 775

Published: March 1, 2025

Language: Английский

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Altitudinal patterns of plant diversity, cover, and life forms in a warm arid mountain: Insights from Sierra de Velasco, Argentina

Journal of Mountain Science, Journal Year: 2025, Volume and Issue: 22(3), P. 873 - 887

Published: March 1, 2025

Language: Английский

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Winter and summer conditions affect the mountain population of Carabus variolosus, a ground beetle of European conservation concern

The Science of The Total Environment, Journal Year: 2025, Volume and Issue: 972, P. 179149 - 179149

Published: March 17, 2025

The changing climate has a significant impact on insect populations. Numerous species are challenged by increasing temperatures, changes in precipitation regimes, and reduction of snow cover, which alters soil moisture patterns their habitats. Among them is Carabus variolosus Fabricius, 1787, strongly hygrophilous, stenotopic species. aim our research was to analyze intra-seasonal the first capture activity C. assess potential climatic factors its abundance analyzing conditions during summer activity, preceding summer, winter before emergence. Additionally, we aimed determine whether different affect spring autumn activity. Our 4-year study revealed inter-seasonal variations patterns. We confirmed that breeder with adult diapause, low young beetles autumn. Over 90 % were captured for time breeding season. highest occurred May, seems be male-driven, as rate females gradually decreased over time. Different influenced captures Spring correlated from previous winter, while related only same year.

Language: Английский

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Diversity and Distribution Patterns of Amphibians in the Huangshan Mountain Region: The Roles of Climate and Human Activities

Animals, Journal Year: 2025, Volume and Issue: 15(7), P. 938 - 938

Published: March 25, 2025

Global climate change and human activities are significant threats to biodiversity, contributing the endangerment of approximately 41% amphibian species worldwide. In this study, we applied field survey methods, MaxEnt model, integrated activity data predict potential changes in diversity distribution Huangshan Mountain, China. have found 23 species, belonging two orders, eight families, 18 genera. The models showed that distance from farmland (contributing 26.2%), shrubs (15.6%), waterbodies (10.6%), as well NDVI (Normalized Difference Vegetation Index) (10.1%), significantly influence diversity, suggesting prefer habitats with lower levels disturbance. Our also Bio3 (isothermal) (8.9%) Bio8 (mean temperature wettest quarter) (8.6%) a impact on amphibians influenced by humidity. seasonal variation revealed correlations between climatic factors. Specifically, was positively correlated wind speed, soil moisture, rainfall (p < 0.05), while abundance linked temperature, 0.05). These findings underscore critical role both conditions habitat structure shaping populations their Mountain. Therefore, local management authorities should continue monitor marginal areas region, taking into account key disturbances factors favor formation hotspots. Protective buffer zones be established provide effective refuges for amphibians.

Language: Английский

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