Lutz Eckstein, professor at Karlstad University, is involved in a recently published paper, studying techniques for control of the invasive Garden Lupine (Lupinus polyphyllus) and the introduction of target species in mountain meadow plant communities.

This paper with Wiebke Hansen as the lead author, published in the journal Restoration Ecology (https://doi.org/10.1111/rec.13682), tested the restoration techniques “seed bank activation” and “green hay transfer” in combination with “manual removal of the invasive L. polyphyllus” on three types of grassland (Nardus grassland, mesic and wet mountain hay meadows) in the Rhön UNESCO Biosphere Reserve in Central Germany.

The main implications for restoration practice are the following:

  • Green hay application might not be a suitable tool for restoring Nardus grassland since small species might not be able to grow through the plant material layer.
  • Lupinus polyphyllus cover on restoration sites can be reduced by manual removal of all parts of the plants, but a lasting reduction requires at least repeated applications
  • Reinvasion of Lupinus polyphyllus into restoration sites must be prevented with an appropriate management, e.g. early and/or repeated mowing.
  • Active restoration through seed bank activation failed to promote mountain meadow target species and reduced the cover of wet mountain hay meadow target species.

Road verges act as important refuges for grassland species since the areas of semi-natural grassland have declined during the last century. However, as linear habitats, road verges increase connectivity in fragmented landscapes, which also makes them prone to colonization by non-native species. This is currently seen as the greatest threat to species-rich road verges. The invasive Garden Lupine is commonly found in road verges where it alters competitive interactions, reduces native populations, and even causes extinctions of native species. 

This project is funded by The Swedish Transport Administration (Trafikverket) and the aim is to improve ecosystem functions and services of species-rich road verges and green infrastructure through evidence-based control and monitoring of Garden Lupine at the landscape scale.

During this seminar, I’m going to introduce the background for the project, and talk about what has been done and what I am planning to do in the next years.

The seminar will be streamed live over zoom on Tuesday 26th April at 13.15 CET. The zoom link for the seminar is https://kau-se.zoom.us/my/kaubiology. You are welcome

Dr. Hein van Kleef from the Bargerveen Foundation in The Netherlands will give a seminar entitled Sailing mostly uncharted waters when applying concepts of ecosystem resilience to enhance invasive resistance. This seminar will be streamed live over zoom on Tuesday 29th March at 13.15 CET through https://kau-se.zoom.us/my/kaubiology





Professor Lutz Eckstein is involved in a new report led by Tommy Lennartsson (SLU) and co-authored by Jörgen Wissman and Jan Olof Helldin (SLU), published by TRIEKOL, a group of scientists dedicated to applied rail and road ecology.

The report summarizes the role of invasive alien plants (IAP) in the context of infrastructure habitats, focusing on the importance of research for the development of measures for the management and monitoring of invasive species. It elaborates on three problem complexes with IAP:

(A) Effects of IAP on biological diversity and the possibility to reach the Swedish environmental objectives;

(B) The role of the organization and activities of the Swedish Transport Administration and of community valuations, laws and rules for the work with IAP; and

(C) The development and evaluation of measures for control of IAP. For each problem complex, a number of specific questions are formulated highlighting critical knowledge gaps that need to be addressed by scientists.

Download the report here: https://triekol.se/project/kunskapsbrister-invasiver/.

RivEM is looking for a PhD candidate to work on evidence-based control and monitoring of Garden Lupine for the conservation of species-rich road verges. The project is part of a larger commitment of the Swedish EPA, the Swedish Transport Administration and Formas on management and control of invasive organisms. The work will take place in southern Sweden and you will be supervised by Lutz Eckstein, Lovisa Lind Eirell (Biology) as well as Jan Haas and Jan-Olov Andersson (Geomatics).

A species-rich roadside in Sweden (photo taken by Lutz Eckstein).

The main tasks of the successful candidate involve to plan, conduct and analyze field experiments directed at controlling the cover and spread of the invasive Garden Lupine. This will include (i) identifying the optimal timing of management, (ii) evaluating the use of different mowing techniques (timing and the regime) as a controlling agent for the Garden Lupine, and (iii) exploring unconventional control measures on the Garden Lupine and their effects on the native vegetation. Additionally, using data derived from geographic information systems (GIS) and un-crewed aerial vehicles (UAV), the candidate will (iv) develop a method for cost efficient monitoring of lupine populations and for evaluating the success of control measures at the landscape scale. Read more about the position and apply at https://kau.varbi.com/en/what:job/jobID:379605/

Tired of slugs eating fruit and veggies in your garden? Big holes in your strawberries? Johan Watz and Daniel Nyqvist (Politecnico di Torino, Italy) have a new paper out on the performance of copper and waterglass (sodium silicate) barriers against movements of Spanish slugs (Arion vulgaris).

Copper foil barriers delayed, but did not prevent slug passage. Waterglass, on the other hand, prevented passage completely and reduced crop damage in a semi-field validation. You can read the full paper here: https://www.sciencedirect.com/science/article/pii/S0261219420304580