<i>Terra incognita</i> of soil biodiversity: unseen invasions under our feet

Andújar, Carmelo; Arribas, Paula; Vogler, Alfried P.

doi:10.1111/mec.14112

Cited by 9 publications

(8 citation statements)

References 13 publications

(31 reference statements)

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“…This scale and dynamics of community assembly contrasts with patterns and processes reported for the microbial eukaryote diversity of the soil (Bahram et al, 2016) and aligns with recent empirical evidences suggesting that at the local scale dispersal rates may be much lower for soil mesofauna than for microfauna (Zinger et al, 2019). In the context of the overall arthropod diversity (for which soil mesofauna comprises the majority of the smallest fraction), our results are not supporting the macroecological prediction for a reduce impact of dispersal limitation in the assemblage for small-bodied components compared with their bigger counterparts (de Bie et al, 2012; Ricklefs, 2004) and highlight the uniqueness of ecological and evolutionary processes driving the biodiversity of these edaphic arthropods (Andújar, Arribas, & Vogler, 2017; Andújar, Pérez-González, et al, 2017).…”

Section: Discussioncontrasting

confidence: 95%

The limited spatial scale of dispersal in soil arthropods revealed with whole-community haplotype-level metabarcoding

Arribas

Andújar

Salces‐Castellano

et al. 2020

Preprint

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15Soil mesofauna communities are hyperdiverse and critical for ecosystem functioning. 16 However, our knowledge on spatial structure and underlying processes of community 17 assembly for soil arthropods is scarce, hampered by limited empirical data on species 18 diversity and turnover. We implement a high-throughput-sequencing approach to 19 generate comparative data for thousands of arthropods at three hierarchical levels: 20 genetic, species and supra-specific lineages. A joint analysis of the spatial arrangement 21 across these levels can reveal the predominant processes driving the variation in 22 biological assemblages at the local scale. This multi-hierarchical approach was performed 23 using haplotype-level-COI metabarcoding of entire communities of mites, springtails and 24 beetles from three Iberian mountain regions. Tens of thousands of specimens were 25 2 extracted from deep and superficial soil layers and produced comparative 26 phylogeographic data for >1000 co-distributed species and nearly 3000 haplotypes. Local 27 assemblages were highly distinctive between grasslands and forests, and within each of 28 them showed strong spatial structures and high endemicity at the scale of a few kilometres 29 or less. The local distance-decay patterns were self-similar for the haplotypes and higher 30 hierarchical entities, and this fractal structure was very similar in all three regions, 31 pointing to a significant role of dispersal limitation driving the local-scale community 32 assembly. Our results from whole-community metabarcoding provide unprecedented 33 insight into how dispersal limitations constrain mesofauna community structure within 34 local spatial settings over evolutionary timescales. If generalized across wider areas, the 35 high turnover and endemicity in the soil locally may indicate extremely high richness 36 globally, challenging our current estimations of total arthropod-diversity on Earth. 37 38 39

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Section: Discussioncontrasting

confidence: 95%

The limited spatial scale of dispersal in soil arthropods revealed with whole-community haplotype-level metabarcoding

Arribas

Andújar

Salces‐Castellano

et al. 2020

Preprint

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“…While above‐ground species of beetle and spider were sampled almost exclusively from single islands, the below‐ground mesofauna revealed extensive sharing across islands and with continents. As Andujar, Arribas, and Vogler () note in an accompanying perspective, the results from the Cicconardi et al. () study are consistent with “massive introductions of … species in remote oceanic islands,” a clear hallmark of the Anthropocene.…”

Section: From the Cover Papers And Perspectivessupporting

confidence: 52%

Editorial 2018

Rieseberg¹,

Geraldes²,

Chambers³

et al. 2018

Molecular Ecology

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Molecular Ecology continues to perform well. It was the second largest evolutionary biology journal (392 articles) in 2016 according to ISI Web of Knowledge, and had the sixth highest citation impact factor (6.1). In terms of overall impact, Molecular Ecology ranks second among ecology or evolution journals according to Google Scholar's h5-index, which rates journals by cumulative hindex over the past five years. Our push to streamline the review process over the past year has begun to pay off, and the time to decision on original manuscript submissions averaged 30 days in 2017.We continue in our efforts to enhance the experience of our authors. Wiley has introduced a new page design for Molecular Ecology, which has been optimized for the online environment. Our website has been updated and reformatted to increase usability, and our Author Guidelines have been updated in a format intended to be less "text dense" for our authors. In addition, the scope statement for the journal now appears in both English and Chinese, as we strive to be more welcoming to our Chinese authors.In October 2017, we were most pleased to welcome a dedicated Editorial Assistant, David Crespo, to the Molecular Ecology staff. Many of you may have heard from him already as he manages the molecol email box and patrols our Scholar One Manuscript Central site. Thus, we expect that the editorial office will be able to respond more quickly to author questions and concerns in 2018. | AN NOUNCEMEN TS | Molecular ecology prizeThe 2017 Molecular Ecology Prize has been awarded to Professor Nancy Moran for her pioneering studies of symbiosis and bacterial genome evolution. The Prize is awarded annually to "an outstanding scientist who has made significant contributions to molecular ecology," as selected by an independent award committee. A biography of Nancy and her contributions to the field of molecular ecology can be found on pages XX-XX of this issue. | The Harry Smith prizeAt the Molecular Ecology editorial meeting this summer, we decided to offer a new prize to that would recognize the best paper published in Molecular Ecology by graduate students or early career scholars with no more than five years of postdoctoral or fellowship experience. As with the Molecular Ecology Prize, the winner of this annual prize will be selected by an independent award committee. A call for nominations will be made in spring, 2018.The prize is named after Professor Harry Smith FRS, who founded the journal and served as both its Chief and Managing Editor during the journal's critical early years. He continued as the journal's Managing Editor until 2008, and he went out of his way to encourage early career scholars. In addition to his editorial work, Harry was one of the world's foremost researchers in photomorphogenesis, where he determined how plants respond to shading, leading to concepts such as "neighbour detection" and "shade avoidance," which are fundamental to understanding plant responses to crowding and competition. More broadly, his research provided an ear...

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“…(Scholes, 2018). Genome sequencing is increasingly relevant for monitoring and managing these communities, from detecting underground invasions (Andújar et al, 2017) to chemical-free pest control. For example, genome information is essential to identify targets for RNA interference, an emerging species-specific alternative to chemicals (Vogel et al, 2019).…”

Section: Ul and L Comparisonmentioning

confidence: 99%

Biodiversity genomics of small metazoans: high qualityde novogenomes from single specimens of field-collected and ethanol-preserved springtails

Schneider

Woehle

Greve

et al. 2020

Preprint

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Genome sequencing of all known eukaryotes on Earth promises unprecedented advances in evolutionary sciences, ecology, systematics and in biodiversity-related applied fields such as environmental management and natural product research. Advances in DNA sequencing technologies make genome sequencing feasible for many non-genetic model species. However, genome sequencing today relies on large quantities of high quality, high molecular weight (HMW) DNA which is mostly obtained from fresh tissues. This is problematic for biodiversity genomics of Metazoa as most species are small and yield minute amounts of DNA. Furthermore, briging living specimens to the lab bench not realistic for the majority of species. Here we overcome those difficulties by sequencing two species of springtails (Collembola) from single specimens preserved in ethanol. We used a newly developed, genome-wide amplification-based protocol to generate PacBio libraries for HiFi long-read sequencing. The assembled genomes were highly continuous. They can be considered complete as we recovered over 95% of BUSCOs. Genome-wide amplification does not seem to bias genome recovery. Presence of almost complete copies of the mitochondrial genome in the nuclear genome were pitfalls for automatic assemblers. The genomes fit well into an existing phylogeny of springtails. A neotype is designated for one of the species, blending genome sequencing and creation of taxonomic references. Our study shows that it is possible to obtain high quality genomes from small, field-preserved sub-millimeter metazoans, thus making their vast diversity accessible to the fields of genomics.

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Terra incognita of soil biodiversity: unseen invasions under our feet

Cited by 9 publications

References 13 publications

The limited spatial scale of dispersal in soil arthropods revealed with whole-community haplotype-level metabarcoding

The limited spatial scale of dispersal in soil arthropods revealed with whole-community haplotype-level metabarcoding

Editorial 2018

Biodiversity genomics of small metazoans: high qualityde novogenomes from single specimens of field-collected and ethanol-preserved springtails

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