Interplay between resistance and resilience governs the stability of a freshwater microbial food web under multiple stressors

Cabrerizo, Marco J.; Medina‐Sánchez, Juan Manuel; Villar‐Argaiz, Manuel; Carrillo, Presentación

doi:10.1016/j.scitotenv.2019.07.173

Cited by 15 publications

(10 citation statements)

References 63 publications

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“…The interaction between UV radiation and nutrient availability was studied in an in situ freshwater food web using high and low concentrations of dissolved organic carbon (C) and inorganic phosphorus (P) under UV irradiation. High organic C and P concentrations resulted in stronger resistance to UV radiation [ 268 ]. This field experiment showed that lower sensitivity to UV radiation alone or UV radiation combined with another stress factor gives an organism an advantage over other members in the ecosystem and thus changes the composition of the biota and the structure of the microbial food web [ 268 ].…”

Section: Aquatic Ecosystemsmentioning

confidence: 99%

Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2020

Neale

Barnes

Robson

et al. 2021

Photochem Photobiol Sci

110

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This assessment by the Environmental Effects Assessment Panel (EEAP) of the United Nations Environment Programme (UNEP) provides the latest scientific update since our most recent comprehensive assessment (Photochemical and Photobiological Sciences, 2019, 18, 595–828). The interactive effects between the stratospheric ozone layer, solar ultraviolet (UV) radiation, and climate change are presented within the framework of the Montreal Protocol and the United Nations Sustainable Development Goals. We address how these global environmental changes affect the atmosphere and air quality; human health; terrestrial and aquatic ecosystems; biogeochemical cycles; and materials used in outdoor construction, solar energy technologies, and fabrics. In many cases, there is a growing influence from changes in seasonality and extreme events due to climate change. Additionally, we assess the transmission and environmental effects of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is responsible for the COVID-19 pandemic, in the context of linkages with solar UV radiation and the Montreal Protocol.

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Section: Aquatic Ecosystemsmentioning

confidence: 99%

Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2020

Neale

Barnes

Robson

et al. 2021

Photochem Photobiol Sci

110

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show abstract

“…However, few studies employ a food web approach when considering realistic multiple stressor scenarios, while those that do only consider one part of the web (e.g. microbial webs; Cabrerizo, Medina-Sánchez, Villar-Argaiz, & Carrillo, 2019), use simple 'modules' of few species (Schrama et al, 2017), or use conceptual models rather than empirical data (Bracewell et al, 2019). There is a need to empirically quantify the combined effects of climate and land use change on freshwater food webs in natural environments to better understand how these stressors modulate ecosystem processes and services.…”

Section: Introductionmentioning

confidence: 99%

Food web properties vary with climate and land use in South African streams

et al. 2020

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1. Land use intensification and climate change are two prominent drivers of variation in biological communities. However, we know very little about how these two potential environmental stressors interact. Here we use a stable isotope approach to quantify how animal communities respond to urban and agriculture land use, and to latitudinal variation in climate (rainfall and temperature), in 29 streams across South Africa.2. Community structure was shaped by both land use and climatic factors. The taxonomic diversity of invertebrates was best explained by an independent negative effect of urbanization, while abundance declined in summer. However, we could not use our variables to predict fish diversity (suggesting that other factors may be more important).3. Both trophic functional diversity (quantifed using isotopic richness) and food chain length declined with increasing temperature. Functional redundancy (quantifed using isotopic uniqueness) in the invertebrate community was high in wet areas, and a synergistic interaction with urbanization caused the lowest values in dry urban regions. There was an additive effect of agriculture and rainfall on abundance-weighted vertebrate functional diversity (quantified using isotopic dispersion), with the former causing a decline in dispersion, with this partially compensated for by high rainfall. 4. In most cases, we found that a single dominant driver (either climate or land use) explained variation between streams. We only found two incidences of combined effects improving the model, one of which was amplified (i.e. the drivers combinedThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.

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“…However, once the P/R balance underwent change, then it did not readily return back to its original state, i.e., P/R had weak resilience. Herein, the high resilience of the phototrophs-favoring their predominance over mixo-and heterotrophs-may lead to the maintenance of the net autotrophic status and carbon sink capacity of these "pristine" ecosystems [100]. Oligotrophic systems serve as sensitive bellwethers of how ecosystem stability as well as resilience are linked to their biodiversity and functional redundancy-an emergent household feature.…”

Section: Interrelationships Among Biodiversity Productivity Stabilimentioning

confidence: 99%

Housekeeping in the Hydrosphere: Microbial Cooking, Cleaning, and Control under Stress

Biddanda

Dila

Weinke

et al. 2021

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Who’s cooking, who's cleaning, and who's got the remote control within the waters blanketing Earth? Anatomically tiny, numerically dominant microbes are the crucial “homemakers” of the watery household. Phytoplankton’s culinary abilities enable them to create food by absorbing sunlight to fix carbon and release oxygen, making microbial autotrophs top-chefs in the aquatic kitchen. However, they are not the only bioengineers that balance this complex household. Ubiquitous heterotrophic microbes including prokaryotic bacteria and archaea (both “bacteria” henceforth), eukaryotic protists, and viruses, recycle organic matter and make inorganic nutrients available to primary producers. Grazing protists compete with viruses for bacterial biomass, whereas mixotrophic protists produce new organic matter as well as consume microbial biomass. When viruses press remote-control buttons, by modifying host genomes or lysing them, the outcome can reverberate throughout the microbial community and beyond. Despite recognition of the vital role of microbes in biosphere housekeeping, impacts of anthropogenic stressors and climate change on their biodiversity, evolution, and ecological function remain poorly understood. How trillions of the smallest organisms in Earth’s largest ecosystem respond will be hugely consequential. By making the study of ecology personal, the “housekeeping” perspective can provide better insights into changing ecosystem structure and function at all scales.

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Interplay between resistance and resilience governs the stability of a freshwater microbial food web under multiple stressors

Cited by 15 publications

References 63 publications

Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2020

Environmental effects of stratospheric ozone depletion, UV radiation, and interactions with climate change: UNEP Environmental Effects Assessment Panel, Update 2020

Food web properties vary with climate and land use in South African streams

Housekeeping in the Hydrosphere: Microbial Cooking, Cleaning, and Control under Stress

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