The patterns of species diversity of plankton functional groups (PFGs) remain poorly
understood although they matter greatly for marine ecosystem functioning. Here, we use an …

Planktonic Foraminifera are unique paleo-environmental indicators through their excellent
fossil record in ocean sediments. Their distribution and diversity are affected by different …

Aim The distribution of zooplankton functional traits is a key factor for regulating food web
dynamics and carbon cycling in the oceans. Yet, we lack a clear understanding of how many …

Polar oceans belong to the most productive and rapidly changing environments, yet our
understanding of this fragile ecosystem remains limited. Here we present an analysis of a …

Aim The identification of biogeographical zones has been fundamental in broadscale
biodiversity analyses over the last 150 years. If processes underlying bioregionalization …

Microbial communities play a crucial role in ocean ecology and global biogeochemical
processes. However, understanding the intricate interactions among diversity, taxonomical …

Tiny ocean plankton (picoplankton) are fundamental for the functioning of the biosphere, but
the ecological mechanisms shaping their biogeography were partially understood …

Diatoms form a diverse and abundant group of photosynthetic protists that are essential
players in marine ecosystems. However, the microevolutionary structure of their populations …

The Arctic Ocean (AO) is being rapidly transformed by global warming, but its biodiversity
remains understudied for many planktonic organisms, in particular for unicellular eukaryotes …

Methods Protistan community structure analysis was based on the diversity of the V2–V3
hypervariable region of the 18S rRNA gene. Operational taxonomic units (OTUs) were …