Airborne Microalgae: Insights, Opportunities, and Challenges

Tesson, Sylvie V. M.; Skjøth, Carsten Ambelas; Šantl-Temkiv, Tina; Löndahl, Jakob

doi:10.1128/aem.03333-15

Cited by 117 publications

(116 citation statements)

References 167 publications

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“…Among phytoplankton, a significant number of taxa has been found to be airborne (Tesson, Skjøth, Šantl‐Temkiv, & Löndahl, ) and may therefore be wind‐dispersed. Waterfowl are also vectors for dispersal of algae both externally (on feathers and feet) as well as internally (reviewed in Kristiansen, ).…”

Section: Discussionmentioning

confidence: 99%

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Changes in trophic state and aquatic communities in high Arctic ponds in response to increasing goose populations

et al. 2019

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The high Arctic, including the Svalbard archipelago in the North Atlantic, has been exposed to direct and indirect drivers of climatic change such as rising temperatures and associated changes in hydrology and nutrient fluxes. In addition, the number of migrating birds, particularly geese, increased remarkably in the Svalbard archipelago during the second half of the last century. The higher number of breeding birds potentially affects water quality and the biota in ponds and lakes. We aimed to investigate the potential influence of increasing goose abundance on trophic state, taxon richness, and species composition of freshwater communities in the high Arctic. We hypothesised that higher goose abundance affects the trophic state of shallow lakes and ponds and their taxon richness and species composition. We conducted a survey of selected ponds at Svalbard along a goose abundance gradient. We used the number of area‐specific goose droppings (range of 0–94 droppings m2) as a proxy of goose presence and measured proxies for productivity as well as taxon richness and composition of phytoplankton and invertebrate communities. Presence and abundance of geese were associated with higher productivity of ponds. Invertebrate and phytoplankton taxon richness correlated (positively) with goose abundance. Both phytoplankton and invertebrate taxon richness increased with increasing nitrogen (N) concentrations. Goose abundance significantly affected phytoplankton species composition, while concentrations of total‐N and total phosphorus (P) did not. Species composition of aquatic invertebrates was most strongly affected by goose abundance, but the effect of total‐N concentration was also significant. Increased goose abundance was associated with bird driven nutrient enrichment, increased phytoplankton and invertebrate taxon richness and changes of these biological communities. Thus, in addition to climate change, the higher abundances of large migratory water fowl in many polar areas may pose a major additional stress to arctic lakes and ponds. In fact, climate change and bird impact may interact, accelerating ongoing environmental change of arctic freshwater ecosystems.

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Section: Discussionmentioning

confidence: 99%

“…Statistical analyses were conducted in SPSS Statistics 24 (IBM, 2016) and PAST 3.1.8 (Hammer, Harper, & Ryan, 2001). Ordination analyses were conducted with the software CANOCO 5.0 (Ter Braak & Šmilauer, 2012).…”

Section: Discussionmentioning

confidence: 99%

Changes in trophic state and aquatic communities in high Arctic ponds in response to increasing goose populations

et al. 2019

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“…At the same time, characterizing airborne algal diversity is challenging because of issues of cryptic diversity, phenotypic plasticity, lack of consensus on molecular markers for taxonomic assignment, and a paucity of comparative research in other geographic areas (Tesson et al. ).…”

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confidence: 99%

A metabarcoding comparison of windward and leeward airborne algal diversity across the Ko‘olau mountain range on the island of O'ahu, Hawai‘i¹

Sherwood

Dittbern

Johnston

et al. 2017

Journal of Phycology

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Airborne algae from sites on the windward (n = 3) and leeward (n = 3) sides of the Ko'olau Mountain range of O'ahu, Hawai'i, were sampled for a 16 d period during January and February 2015 using passive collection devices and were characterized using Illumina MiSeq sequencing of the universal plastid amplicon marker. Amplicons were assigned to 3,023 operational taxonomic units (OTUs), which included 1,189 cyanobacteria, 1,009 heterotrophic bacteria, and 304 Eukaryota (of which 284 were algae and land plants). Analyses demonstrated substantially more OTUs at windward than leeward O'ahu sites during the sampling period. Removal of nonalgal OTUs revealed a greater number of algal reads recovered from windward (839,853) than leeward sites (355,387), with the majority of these being cyanobacteria. The 1,234 total algal OTUs included cyanobacteria, diatoms, cryptophytes, brown algae, chlorophyte green algae, and charophyte green algae. A total of 208 algal OTUs were identified from leeward side samplers (including OTUs in common among samplers) and 1,995 algal OTUs were identified from windward samplers. Barcoding analyses of the most abundant algal OTUs indicated that very few were shared between the windward and leeward sides of the Ko'olau Mountains, highlighting the localized scale at which these airborne algae communities differ. Back trajectories of air masses arriving on O'ahu during the sampling period were calculated using the NOAA HY-SPLIT model and suggested that the sampling period was composed of three large-scale meteorological events, indicating a diversity of potential sources of airborne algae outside of the Hawaiian Islands.

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“…in microalgae: Tesson et al . b), or in terms of chemotaxis, spatial data on chemical composition may be required. The needs of microorganism landscape genetics may require the generation of unique geographic data sets that may or may not be currently available within existing databases, presenting an additional step of first spatially characterizing relevant environmental variables.…”

Section: Challenges In Microorganism Landscape Geneticsmentioning

confidence: 99%

Applying landscape genetics to the microbial world

Dudaniec

Tesson

2016

Molecular Ecology

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Landscape genetics, which explicitly quantifies landscape effects on gene flow and adaptation, has largely focused on macroorganisms, with little attention given to microorganisms. This is despite overwhelming evidence that microorganisms exhibit spatial genetic structuring in relation to environmental variables. The increasing accessibility of genomic data has opened up the opportunity for landscape genetics to embrace the world of microorganisms, which may be thought of as 'the invisible regulators' of the macroecological world. Recent developments in bioinformatics and increased data accessibility have accelerated our ability to identify microbial taxa and characterize their genetic diversity. However, the influence of the landscape matrix and dynamic environmental factors on microorganism genetic dispersal and adaptation has been little explored. Also, because many microorganisms coinhabit or codisperse with macroorganisms, landscape genomic approaches may improve insights into how micro-and macroorganisms reciprocally interact to create spatial genetic structure. Conducting landscape genetic analyses on microorganisms requires that we accommodate shifts in spatial and temporal scales, presenting new conceptual and methodological challenges not yet explored in 'macro'-landscape genetics. We argue that there is much value to be gained for microbial ecologists from embracing landscape genetic approaches. We provide a case for integrating landscape genetic methods into microecological studies and discuss specific considerations associated with the novel challenges this brings. We anticipate that microorganism landscape genetic studies will provide new insights into both micro-and macroecological processes and expand our knowledge of species' distributions, adaptive mechanisms and species' interactions in changing environments.

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Airborne Microalgae: Insights, Opportunities, and Challenges

Cited by 117 publications

References 167 publications

Changes in trophic state and aquatic communities in high Arctic ponds in response to increasing goose populations

Changes in trophic state and aquatic communities in high Arctic ponds in response to increasing goose populations

A metabarcoding comparison of windward and leeward airborne algal diversity across the Ko‘olau mountain range on the island of O'ahu, Hawai‘i¹

Applying landscape genetics to the microbial world

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Airborne Microalgae: Insights, Opportunities, and Challenges

Cited by 117 publications

References 167 publications

Changes in trophic state and aquatic communities in high Arctic ponds in response to increasing goose populations

Changes in trophic state and aquatic communities in high Arctic ponds in response to increasing goose populations

A metabarcoding comparison of windward and leeward airborne algal diversity across the Ko‘olau mountain range on the island of O'ahu, Hawai‘i1

Applying landscape genetics to the microbial world

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A metabarcoding comparison of windward and leeward airborne algal diversity across the Ko‘olau mountain range on the island of O'ahu, Hawai‘i¹