Publicaties
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The use of visible and near-infrared reflectance measurements for identifying the source of suspended sediment in rivers and comparison with geochemical fingerprinting KU Leuven
Purpose Visible and near-infrared (Vis-NIR) reflectance measurements may be an alternative technique to identify suspended sediment sources in streams of headwater catchments. In this study, we examined if Vis-NIR reflectance measurements are capable of estimating sediment source contributions to sediment yield and compared this technique with a more conventional (i.e. geochemical) technique. Materials and methods Two headwater catchments in ...
Selective tidal stream transport in silver European eel (Anguilla anguilla L.)--Migration behaviour in a dynamic estuary Instituut voor Natuur- en Bosonderzoek Vlaams Instituut voor de Zee Universiteit Gent
Different fish species use selective tidal stream transport (STST) to efficiently migrate through strong tidal systems to complete their life cycle, but the use of STST by silver European eels (Anguilla anguilla L.) is still controversial. In this study, we found strong evidence that silver European eels apply STST. The results illustrate that eels can distinguish between ebb and flood and suggest that tides play a role in orientation, either ...
Harmonia+ and Pandora+: risk screening tools for potentially invasive plants, animals and their pathogens Instituut voor Natuur- en Bosonderzoek
Given the large number of alien species that may potentially develop into invasives, there is a clear need for robust schemes that allow to screen species for such risks. The Harmonia+ framework presented here brings together 30 questions that refer to distinct components of invasion. Together, they cover the stages of introduction, establishment, spread, and multiple kinds of impacts, viz. referring to the health of the environment (including ...
Successful eradication of a suburban Pallas’s squirrel Callosciurus erythraeus (Pallas 1779) (Rodentia, Sciuridae) population in Flanders (northern Belgium) Instituut voor Natuur- en Bosonderzoek KU Leuven
Despite a growing catalogue of eradication projects, documented successful vertebrate eradications on the mainland remain scarce. Reporting on successful campaigns is crucial to counter pessimism on ambitious programmes to tackle invasive species and to allow conservation practitioners, wildlife managers and scientist to learn from previous experience. Moreover, there is a need for basic information on the effectiveness of control methods and ...
Open occurrence data for IAS risk mapping in Belgium Plantentuin Meise / Agentschap Plantentuin Meise
Forecasting the risk of invasion by alien species in response to climate change has become a crucial goal in ecology and biodiversity conservation. Due to their ease of implementation, correlative species distribution models (SDMs) are extremely appealing for explaining and predicting the risk of species establishment under climate change. However, there are some caveats to forecasting with species distribution models which can present barriers ...
A pipeline for feeding headline indicators on the state of invasions and to prioritize emerging alien species Plantentuin Meise / Agentschap Plantentuin Meise
Imagine you're automatically alerted when new alien species appear in your country, new introduction pathways open or an established species jumps out of it’s lag phase and increases in protected areas. We showcase an operational workflow generating indicators for invasions based on openly published checklist and occurrences data on GBIF using data from the TrIAS project in Belgium. Checklist based indicators at country level include the ...
A comparative study on the in vitro biotransformation of medicagenic acid using human liver microsomes and S9 fractions Universiteit Antwerpen
Many natural products are prodrugs which are biotransformed and activated after oral administration. The investigation of gastrointestinal and hepatic biotransformation can be facilitated by in vitro screening methods. This study compares two widely used in vitro models for hepatic biotransformation: 1) human S9 fractions and 2) human liver microsomes and cytosolic fractions in a two-step sequence, with the purpose of identifying differences in ...
Carbamate synthesis via a shelf stable and renewable C1 reactant Universiteit Antwerpen
4‐Propylcatechol carbonate is a shelf‐stable, renewable C1 reactant. It is easily prepared from renewable 4‐propylcatechol (derived from wood) and dimethyl carbonate (derived from CO2) using a reactive distillation system. In this work the carbonate reactant has been used for the two‐step synthesis of carbamates under mild reaction conditions. In the first step, 4‐propylcatechol carbonate is reacted with an alcohol at 50‐80 °C using a Lewis acid ...
New perspectives for fish in the Scheldt Estuary Instituut voor Natuur- en Bosonderzoek
The integration of a 600ha floodplain to the stream corridor of the tidal freshwater Scheldt Estuary will increase populations of eurytopic and rheophylic b species.