Organic matter quantity and source affects microbial community structure and function following volcanic eruption on <scp>K</scp>asatochi <scp>I</scp>sland, <scp>A</scp>laska

Zeglin, Lydia H.; Wang, Bronwen; Waythomas, Christopher F.; Rainey, Frederick A.; Talbot, Sandra L.

doi:10.1111/1462-2920.12924

Cited by 49 publications

(26 citation statements)

References 52 publications

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“…Still, questions remain regarding the relative influence of stochastic (e.g., dispersal, ecological drift) and deterministic (e.g., selection, diversification) processes on soil microbial communities across environmental and temporal gradients (Nemergut et al, 2013). To date, investigations of microbial community assembly mainly explore succession after natural disturbances like glacial retreat (Cline and Zak, 2014;Jumpponen, 2003), fire (Ferrenberg et al, 2013;Gassibe et al, 2011;Hart et al, 2005), or volcanic eruption (Ibekwe et al, 2007;Zeglin et al, 2016). Far fewer studies focus on anthropogenic disturbances like land use change (Jesus et al, 2009;Lauber et al, 2008) or severe physical disturbances like tillage (Calderón et al, 2000;Lupwayi et al, 1998).…”

Section: Ecological Successionmentioning

confidence: 99%

Soil microbial succession following surface mining is governed primarily by deterministic factors

Kane

Morrissey

Skousen

et al. 2020

FEMS Microbiology Ecology

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Understanding the successional dynamics governing soil microbial community assembly following disturbance can aid in developing remediation strategies for disturbed land. However, the influences shaping microbial communities during succession following soil disturbance remain only partially understood. One example of a severe disturbance to soil is surface mining for natural resources, which displaces communities and changes the physical and chemical soil environment. These changes may alter community composition through selective pressure on microbial taxa (i.e. deterministic processes). Dispersal and ecological drift may also shape communities following disturbance (i.e. stochastic processes). Here, the relative influence of stochastic and deterministic processes on microbial community succession was investigated using a chronosequence of reclaimed surface mines ranging from 2–32 years post-reclamation. Sequencing of bacterial and fungal ribosomal gene amplicons coupled with a linear modeling approach revealed that following mine reclamation, while bacterial communities are modestly influenced by stochastic factors, the influence of deterministic factors was ∼7 × greater. Fungal communities were influenced only by deterministic factors. Soil organic matter, texture, and pH emerged as the most influential on both bacterial and fungal communities. Our results suggest that management of deterministic soil characteristics over a sufficient time period could increase the microbial diversity and productivity of mine soils.

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Section: Ecological Successionmentioning

confidence: 99%

Soil microbial succession following surface mining is governed primarily by deterministic factors

Kane

Morrissey

Skousen

et al. 2020

FEMS Microbiology Ecology

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“…Five years post-eruption, SOC content is still relatively small (<0.2% C). However, microbial activities in pyroclastic materials with organic matter (OM) inputs were one or two order magnitude larger than in materials without OM input [26].…”

Section: Kasotchi Island Alaskamentioning

confidence: 99%

Volcanic Ash, Insecurity for the People but Securing Fertile Soil for the Future

et al. 2019

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Volcanic eruptions affect land and humans globally. When a volcano erupts, tons of volcanic ash materials are ejected to the atmosphere and deposited on land. The hazard posed by volcanic ash is not limited to the area in proximity to the volcano, but can also affect a vast area. Ashes ejected from volcano’s affect people’s daily life and disrupts agricultural activities and damages crops. However, the positive outcome of this natural event is that it secures fertile soil for the future. This paper examines volcanic ash (tephra) from a soil security view-point, mainly its capability. This paper reviews the positive aspects of volcanic ash, which has a high capability to supply nutrients to plant, and can also sequester a large amount of carbon out of the atmosphere. We report some studies around the world, which evaluated soil organic carbon (SOC) accumulation since volcanic eruptions. The mechanisms of SOC protection in volcanic ash soil include organo-metallic complexes, chemical protection, and physical protection. Two case studies of volcanic ash from Mt. Talang and Sinabung in Sumatra, Indonesia showed the rapid accumulation of SOC through lichens and vascular plants. Volcanic ash plays an important role in the global carbon cycle and ensures soil security in volcanic regions of the world in terms of boosting its capability. However, there is also a human dimension, which does not go well with volcanic ash. Volcanic ash can severely destroy agricultural areas and farmers’ livelihoods. Connectivity and codification needs to ensure farming in the area to take into account of risk and build appropriate adaptation and resilient strategy.

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“…In addition to abiotic factors, population oscillations can also be the result of population competition, such as interactions of parasitoids‐hosts, pathogens‐hosts or consumers‐producers (Fuhrman, ; Gittel et al ., ; Turchin, ; Poggiale et al ., ; Zeglin et al ., ). For unicellular prokaryotes, parasitoids‐hosts and pathogens‐hosts interactions are mainly mediated by phages.…”

Section: Discussionmentioning

confidence: 97%

“…Microorganisms play crucial roles in biogeochemical cycles that cannot be achieved by individual species or populations due to their simple structures and functions (Jousset et al ., ; Momeni et al ., ; Nadell et al ., ; Zelezniak et al ., ). In reality, various functional microorganisms interact and cooperate closely to form complicated networks in an ecosystem, which are the foundation of community construction and succession (Bell et al ., ; Singh et al ., ; Franzosa et al ., ; Battin et al ., ; Zeglin et al ., ). Although phylogenetic diversity and species interactions have been investigated extensively, generally using 16S rDNA as the molecular marker (Jansson and Taş, ; Lievens et al ., ; Ghoul and Mitri, ; Nadell et al ., ), and a handful of models have been developed based on the biotransformation of simple compounds to evaluate how abiotic and biotic factors shape microbial community structure and function (Lawrence et al ., ; Allison, ; Sulman et al ., ), our knowledge about microbial ecosystems is still in its infancy, especially in revealing community assembly and succession patterns in a specific habitat and reframing theoretical frameworks of microbial ecology (Buchkowski et al ., ).…”

Section: Introductionmentioning

confidence: 99%

The relative abundance of alkane‐degrading bacteria oscillated similarly to a sinusoidal curve in an artificial ecosystem model from oil‐well products

Gao

Zhi

et al. 2018

Environmental Microbiology

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Microbial phylogenetic diversity and species interactions in natural ecosystems have been investigated extensively, but our knowledge about their ecological roles, community dynamics and succession patterns is far from complete. This knowledge is essential to understand the complicated interactions of microorganisms in natural ecosystems. Here, an artificial ecosystem model of microorganisms was constructed from oil-well products and cultivated in a chemostat to investigate the succession pattern of alkane-degrading bacteria, a functional population in oil reservoirs. Their abundance was quantified by an improved qPCR technique. Our results showed that the phylogenetic structure of this artificial ecosystem model is stable during most of the chemostat cultivation process, while the genotype structure of alkane-degrading bacteria containing alkB genes shifted and their relative abundance oscillated similarly to a sinusoidal curve, like the succession pattern of producers in the Lotka-Volterra model. These results suggest that some theoretical frameworks of macroecology may work well in microbial ecosystems and be an efficient tool to understand them.

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Organic matter quantity and source affects microbial community structure and function following volcanic eruption on Kasatochi Island, Alaska

Cited by 49 publications

References 52 publications

Soil microbial succession following surface mining is governed primarily by deterministic factors

Soil microbial succession following surface mining is governed primarily by deterministic factors

Volcanic Ash, Insecurity for the People but Securing Fertile Soil for the Future

The relative abundance of alkane‐degrading bacteria oscillated similarly to a sinusoidal curve in an artificial ecosystem model from oil‐well products

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