3/5 Led by #MarjorieCouton, we use a unique and spatially highly resolved data set containing a representative collection of thousands of #Niphargus amphipod individuals across Switzerland and analysed the genetic structure of ~1300 individuals of five species within their contemporary distribution.

An #Amphipod blast! Made some great observations while doing #fieldwork in the Ajoie🇨🇭/Sundgau🇫🇷:
Densities of >1000 individuals of #Gammarus at 10x10 cm riverbed, #Niphargus in the Clos du Doue, and hundreds of free-swimming Gammarids.

🦐🔬🧬🏞️

Such a rewarding day!

Delić et al: Phylogenetic origin of morphologically cryptic species shapes co-occurrence & sympatry patterns.
Resolving #Niphargus rhenorhodanensis complex comprised of 48 MOTUs/9 different clades to resolve sympatries & syntopies.

Out now #FreshwaterBiology

onlinelibrary.wiley.com/doi/epdf/10....

#Terrestrial land use #signals on #groundwater #fauna beyond current protection buffers.

We find reduced ↘️ groundwater amphipod 🦐 occurrence in areas of crops 🌽 and high intensity #agriculture 🚜. #Niphargus #biodiversity #drinkingwater 🚰

esajournals.onlinelibrary.wiley.com/doi/10.1002/...

🧵1/2

Last days to apply: #Postdoc #position in #Groundwater #Biodiversity (2 years) opening up in my group @ Eawag & University of Zurich @romanalther.bsky.social 🦐 🧬 🔬

#biogeography #taxonomy #ecology #amphipods #Niphargus
More info & details:

apply.refline.ch/673277/1214/...
please spread widely!

Join us! #Postdoc #position in #Groundwater #Biodiversity (2 years) opening up in my group #EawagResearch
& #UZH_Science @romanalther.bsky.social
.
More info and application details:
apply.refline.ch/673277/1214/...
🦐🧬🔬

#biogeography #taxonomy #ecology #amphipods #Niphargus

please spread widely!

@UZH_Science faculty excursion "inside Switzerland" to Bergwerk Gonzen.
No more iron ore extraction, but #Niphargus all around. Life inside a limestone mountain, 600m below surface, #bacteria biofilm & groundwater #amphipods as simple foodweb.
#Biodiversity is amazing! 🗻⛏️🦐
www.nzz.ch/wissenschaft...