Near the end of the experiment, the hairy willowherb (Epilobium hirsutum, Onagraceae) is growing, blooming and fruiting like crazy. In a few days - after 1/2 year of experiment - we'll know how pesticides and flooding have affected our riparian community.

#SystemLink #RPTU #Landau #willowherb #Epilobium #waterlandeffect #pesticides

Landau, Anno Domini 2023.

All doctoral researchers study animals, hydrology and soils at the unique Riparian Stream Mesocosms (RSM) facility next to river Queich.

Really ALL of them? No. A small group also mapped plants yesterday and found some beautiful species:

🍀 purple loosestrife, Lythrum salicaria, Lythraceae
🍀 broadleaf cattail, Typha latifolia, Typhaceae
🍀 European pellitory, Achillea ptarmica, Asteraceae

https://systemlink.uni-landau.de

#RPTU #Landau #SystemLink #RSM #RiparianStreamMesocosms #Queich #Gauls

Was wir in der Wissenschaft wirklich so treiben, heute:

Aus Poolnudeln Käfige für Blattläuse basteln, auf Blätter montieren, Töpfe im Gewächshaus mit Pestiziden fluten.

Wozu? Einfluss und Transport von Pflanzenschutzmitteln im Lebensraum Ufer bzw. Wasser-Land-Effekte besser verstehen.

Der Star ist Aphis fabae, die Schwarze Bohnenlaus, hier auf Silene dioica, der Roten Lichtnelke, montiert.

Großes Topfexperiment im Rahmen des DFG-Graduiertenkollegs (https://systemlink.uni-landau.de) am Campus Kaiserslautern.

#DFG #SystemLink #RPTU #Wissenschaft #Poolnudel #Blattläuse #Gewächshaus #Kaiserslautern #Landau #Pestizide #Pflanzenschutzmittel #Ufer #Aphis #Aphisfabae #SchwarzeBohnenlaus #WasserLandEffekte

What else do we need besides soil for the greenhouse experiment in #Kaiserslautern?

Young, healthy plants typical for the riparian habitat: #nettle, #willowherb, red #catchfly, and the invasive species Himalayan balsam.

Let's get started!

#SystemLink #RPTU [2/2]

What does it take to measure effects of #pesticides in a riparian habitat in a controlled system?

Natural, unpolluted riparian soil, of course. 350 kg of it, and it has to pass through the 2-mm sieve.

There are worse jobs if the sun is shining!

#SystemLink #RPTU #Landau #Kaiserslautern [1/2]

What else do we need besides soil for the greenhouse experiment in #Kaiserslautern?

Young, healthy plants typical for the riparian habitat: #nettle, #willowherb, red #catchfly, and the invasive species Himalayan balsam.

Let's get started!

#SystemLink #RPTU [2/2]

What does it take to measure effects of #pesticides in a riparian habitat in a controlled system?

Natural, unpolluted riparian soil, of course. 350 kg of it, and it has to pass through the 2-mm sieve.

There are worse jobs if the sun is shining!

#SystemLink #RPTU #Landau #Kaiserslautern

The invasive plant species Japanese knotweed and Himalayan balsam influence the abundance of soil arthropods and are characterized by lower richness of root-associated fungi compared to the native nettle in riparian habitats. Just published today in Biological Invasions!

➡ https://link.springer.com/article/10.1007/s10530-023-03034-2

#SystemLink #Landau #RPTU #Fallopia #Fallopiajaponica #Impatiens #Impatiensglandulifera #Urtica #Urticadioica #Acari #Collembola #biodiversity #metabarcoding #endophytes #mycorrhiza #Japaneseknotweed #Himalayanbalsam

New mauscript by the SystemLink team in Limnology and Oceanography Bulletin introduces the interdisciplinary research training group and explains the research facilities established in and around Landau.

SystemLink: Moving beyond Aquatic–Terrestrial Interactions to Incorporate Food Web Studies

https://doi.org/10.1002/lob.10557

#SystemLink #Landau #RPTU #DFG #GraduateSchool #ResearchTrainingGroup #RTG

Die Hiwistellen in #Landau und #Kaiserslautern sind alle vergeben, aber Abschlussarbeiten (Bachelor/Master) rund um das Nahrungsnetz oder Treibhausgase im Lebensraum Ufer unter Stress (Pestizide, invasive Pflanzen) im #Sommer 2023 sind noch zu haben!

#RPTU #SystemLink

Noch ist das Gewächshaus leer und die Keimlinge frisch geschlüpft, aber bald schon soll am Campus Kaiserslautern ein großes Topfexperiment aufgebaut werden, um den Einfluss der Stressoren Flutung, Pestizide und invasive Arten im Lebensraum Ufer zu erforschen.

Wir suchen zahlreiche Hiwis und bieten mehrere Abschlussarbeiten ab sofort an! Beteiligt sind die Arbeitsgruppen Molekulare Botanik (KL) und Ökosystemanalyse (LD).

#HeavyMetal #RPTU #Landau #Kaiserslautern #SystemLink #Sommersemester #Sommersemester2023 #BottomUp #Kupfer #Pestizide #Flut #UniversityKaiserslauternLandau #DFG

In a big two-year bottom-up mesocosm experiment, the impact of the fungicide copper was evaluated on the riparian plants common nettle and invasive Japanese knotweed within the DFG graduate school SystemLink. The next results have been published:

▶️ http://mdpi.com/2083846

For the first manuscript of the experiment dealing with polyphenoles, https://onlinelibrary.wiley.com/doi/10.1002/jpln.202200255

#HeavyMetal #RPTU #SystemLink #BottomUp #Copper #Flooding #UniversityKaiserslauternLandau #Nettle #Knotweed #MDPI #MDPIPlants #DFG #EERES

Just published today in Journal of Plant Nutrition and Soil: #Nitrification inhibition by #polyphenols from invasive #Japanese knotweed (#Fallopia japonica) under copper stress, by #Girardi et al.

▶️https://onlinelibrary.wiley.com/doi/10.1002/jpln.202200255

#SystemLink #emodin #resveratrol #PNR #Landau

First pre-experiments in the #SystemLink project at University of Koblenz-#Landau in are running!

How do riparian plant communities (pictures: #Epilobium/willowherbs, #Lycopus/bugleweed) respond to fungicides and plant #invaders like Himalayan balsam (#Impatiens glandulifera) or goldenrods (#Solidago spp.)?

#foodwebs #biodiversity

In a just started project within the #DFG Research Training Group #SystemLink at University Koblenz-#Landau we study how bottom-up and top-down trophic cascades in native riparian communities including bacteria, fungi, plants, herbivores and their predators are affected by #flooding, soil #fungicide contamination and invasive plants ⤵️