Clément Duckert

Clément Duckert
Université de Neuchâtel | UniNE · Institut de biologie (IBIOL)

PhD position: mostly sitting

About

11
Publications
3,226
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118
Citations
Introduction
I work on things and stuff, mostly very tiny stuff.

Publications

Publications (11)
Article
Full-text available
Eukaryotic microbial diversity is known to be extensive but remains largely undescribed and uncharted. While much of this unknown diversity is composed of inconspicuous flagellates and parasites, larger and morphologically distinct protists are regularly discovered, most notably from poorly studied regions. Here we report a new flagship species of...
Article
New Zealand (NZ) is a well-known hotspot of biodiversity and endemism for macroscopic organisms, but its microbial diversity is comparatively poorly documented. We assembled all records on NZ testate amoebae published since the early 20th century and present a comprehensive taxonomic checklist for NZ. Testate amoebae are reported from six major hab...
Article
Full-text available
Protists dominate eukaryotic diversity and play key functional roles in all ecosystems, particularly by catalyzing carbon and nutrient cycling. To date, however, a comparative analysis of their taxonomic and functional diversity that compares the major ecosystems on Earth (soil, freshwater and marine systems) is missing. Here, we present a comparis...
Article
Full-text available
The majority of Euglyphida species are characterised by shells with imbricated silica scales. Environmental surveys indicate a large unexplored diversity and recent efforts hinted at a certain diversity of yet undescribed, inconspicuous, scale‐lacking Euglyphida. Here we describe Phaeobola aeris gen. nov., sp. nov. that shows a variety of morpholog...
Article
Full-text available
A high diversity of Apicomplexa was recently found in tropical soils presumably reflecting the diversity of their invertebrate hosts, but such patterns have not been explored in colder regions. We analysed the diversity of Apicomplexa and their potential metazoan hosts in litter and mosses collected in 11 different alpine habitats using an eDNA met...
Article
Full-text available
The purpose of this application, under Article 23.9.3 of the Code, is to conserve the specific name Nebela militaris Penard, 1890, a junior subjective synonym of Nebela bursella Taranek, 1881 – referred to as Nebela bursella Vejdovský in the literature. Due to the absence of any type or reference specimen and due to the confusing original descripti...
Article
Arcellinida (lobose testate amoebae) are abundant and diverse in many ecosystems, especially in moist to aquatic environments. Molecular phylogeny has shown that overall test morphology (e.g., spherical or elongate) is generally conserved in Arcellinida lineages, but the taxonomic value of other traits (e.g., size, ornamentation, mixotrophy/heterot...
Article
Recent studies show that soil eukaryotic diversity is immense and dominated by microorganisms. However, it is unclear to what extent the processes that shape the distribution of diversity in plants and animals also apply to microorganisms. Major diversification events in multicellular organisms have often been attributed to long‐term climatic and g...
Article
Methodological advances are essential for robust ecological research. Quantitative reconstructions of environmental conditions using testate amoebae rely on sound taxonomy. While the taxonomy of large species is relatively well resolved, this is not the case for most small taxa (typically <45 μm long). In New Zealand, peatlands contain a diversity...
Article
Full-text available
Since the first environmental DNA surveys, entire groups of sequences called “environmental clades” did not have any cultured representative. LKM74 is an amoebozoan clade affiliated to Dermamoebidae, whose presence is pervasively reported in soil and freshwater. We obtained an isolate from soil that we assigned to LKM74 by molecular phylogeny, clos...

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Projects

Projects (2)
Project
Testate amoebae are a common group of amoeboid protists that build shells (called tests). They occur in soils, freshwater habitats, and to a lesser extent marine environments. They play a key role in microbial foodwebs and are useful bioindicators due to their responses to major ecological gradients (e.g. water availability, pH and nutrients). Their shells allow species-level identification and are preserved in sediments, peat and dried or frozen soil or moss samples, and they are commonly used in palaeoecology for quantitative inference and as model organisms for microbial biogeography. The literature on testate amoebae includes many ancient publications, in different languages and is often hard to find and stored in different private archives. Our goal is to compile the existing data in a user-friendly, open database which will facilitate the study of testate amoebae. This will have positive implications for their use in the study of testate amoeba biodiversity, biogeography, their functional roles and interactions with other organisms. It will also allow defining knowledge gaps and research priorities. In this global effort, we aim to build several databases for testate amoebae: 1) Original taxonomic descriptions (and translations) 2) Biometry and trait data 3) Geographical distribution 4) Diversity and community data (density, relative abundance) and associated metadata (especially quantitative ecological information, vegetation etc.). International Society for Testate Amoeba Research http://istar.wikidot.com/
Project
Knowledge on soil protists in all aspects such as on community structure and functioning remains poorly known. In this global effort we aim at increasing this knowledge and link soil protistology with other fields such as more general soil microbecology, plant and general ecology.