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Resilience and receptivity worked in tandem to sustain a geothermal mat community amidst erratic environmental conditions.

ABSTRACT: To elucidate how geothermal irregularities affect the sustainability of high-temperature microbiomes we studied the synecological dynamics of a geothermal microbial mat community (GMMC) vis-à-vis fluctuations in its environment. Spatiotemporally-discrete editions of a photosynthetic GMMC colonizing the travertine mound of a circum-neutral hot spring cluster served as the model-system. In 2010 a strong geyser atop the mound discharged mineral-rich hot water, which nourished a GMMC continuum from the proximal channels (PC) upto the slope environment (SE) along the mound's western face. In 2011 that geyser extinguished and consequently the erstwhile mats disappeared. Nevertheless, two relatively-weaker vents erupted in the southern slope and their mineral-poor outflow supported a small GMMC patch in the SE. Comparative metagenomics showed that this mat was a relic of the 2010 community, conserved via population dispersal from erstwhile PC as well as SE niches. Subsequently in 2012, as hydrothermal activity augmented in the southern slope, ecological niches widened and the physiologically-heterogeneous components of the 2011 "seed-community" split into PC and SE meta-communities, thereby reclaiming either end of the thermal gradient. Resilience of incumbent populations, and the community's receptiveness towards immigrants, were the key qualities that ensured the GMMC's sustenance amidst habitat degradation and dispersal to discrete environments.

SUBMITTER: Ghosh W

PROVIDER: S-EPMC4505329 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Resilience and receptivity worked in tandem to sustain a geothermal mat community amidst erratic environmental conditions.

Ghosh Wriddhiman W Roy Chayan C Roy Rimi R Nilawe Pravin P Mukherjee Ambarish A Haldar Prabir Kumar PK Chauhan Neeraj Kumar NK Bhattacharya Sabyasachi S Agarwal Atima A George Ashish A Pyne Prosenjit P Mandal Subhrangshu S Rameez Moidu Jameela MJ Bala Goutam G

Scientific reports 20150717

To elucidate how geothermal irregularities affect the sustainability of high-temperature microbiomes we studied the synecological dynamics of a geothermal microbial mat community (GMMC) vis-à-vis fluctuations in its environment. Spatiotemporally-discrete editions of a photosynthetic GMMC colonizing the travertine mound of a circum-neutral hot spring cluster served as the model-system. In 2010 a strong geyser atop the mound discharged mineral-rich hot water, which nourished a GMMC continuum from ...[more]

PMID: 26184838

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Project description:BackgroundAs of December 31, 2020, Brazil had the second-highest burden of COVID-19 worldwide. Given the absence of federal government coordination, it was up to the local governments to maintain healthcare provision for non-COVID health issues. In this descriptive study, we aimed to discuss the SUS functionality and resilience, describing the impact of the pandemic on non-COVID health services delivery while considering the regional inequalities of the allocation of financing health system, health infrastructure and health workforce.MethodsWe used input-output framework based on the World Health Organization (WHO) Health System Building Blocks to estimate health system functionality and resilience. An ecological assessment was designed to calculated mean relative changes to compare the first year of the pandemic in Brazil with the previous one. All data used in this study were anonymized and made available by the Brazilian Ministry of Health. Input indicators were categorized in health system financing (federal funding received as well as expenditure of both state and city governments), health system's infrastructure (hospital beds) and health workforce (healthcare workers positions). Output indicators were categorized into nine different groups of service delivery procedures. To explore the relationship between the variation in procedures with socioeconomic conditions, we used the Socioeconomic Vulnerability Index (SVI).FindingsState governments had a 38·6% increase in federal transfers, while municipal governments had a 33·9% increase. The increase of ICU beds reached its peak in the third quarter of 2020, averaging 72·1% by the end of the year. The country also saw an increase in jobs for registered nurses (13·6%), nurse assistants (8·5%), physiotherapists (7·9%), and medical doctors (4·9%). All procedures underwent expressive reduction: Screenings (-42·6%); Diagnostic procedures (-28·9%); Physician appointments (-42·5%); Low and medium complexity surgeries (-59·7%); High complexity surgeries (-27·9%); Transplants (-44·7%); Treatments and clinical procedures due to injuries of external causes (-19·1%); Irrepressible procedures (-8·5%); and Childbirths (-12·6%). The most significant drop in procedures happened in the first quarter of the pandemic, followed by progressive increase; most regions had not yet recovered by the end of 2020. State-level changes in numbers of procedures point towards a negative trend with SVI.InterpretationThe Brazilian Government did not consider that socioeconomically vulnerable states were at a higher risk of being impacted by the overburden of the health system caused by the COVID-19, which resulted in poorer health system functionality for those vulnerable states. The lack of proper planning to improve health system resilience resulted in the decrease of a quarter of the amount of healthcare procedures increasing the already existing health disparities in the country.FundingMCTIC/CNPQ/FNDCT/MS/SCTIE/DECIT No 07/2020.

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Resilience and receptivity worked in tandem to sustain a geothermal mat community amidst erratic environmental conditions.

Publications

Resilience and receptivity worked in tandem to sustain a geothermal mat community amidst erratic environmental conditions.

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