Next to La Meuse river, near the villages of Welland Aijen, there is a large archaeological site with a long history of human occupation, including the remains of a large Mesolithic hunter gatherer community (see Marion Zijlema article for more details) The history of the site is deeply linked to the expansion and flooding of the river. In collaboration with archaeologists (Hanneke Bos) four UvA bachelor students are going to study the fossil pollen, phytoliths and charcoal from the Well-Aijen site to captured the environmental change that accompanied the human occupation. Yesterday (20 January – WDG late uploading post, sorry!) we visited the site to see what it was like, and to test out some equipment!
We decided to bring out the Livingstone corer (Geo-core), which is usually used from a boat in a lake (e.g. Lake Erazo), to test its capacities on terrestrial sediment. Knowing that the peat formation was not deep below and given that the corer-system gives a nice continuous record, it seemed worthy of giving it a try. We ended up learning a lot about how the corer functions and about problem solving in the field – almost everything that could go wrong, did go wrong. We really fought for every centimeter of sample! The team never suffered from low spirits though, despite it all. With jokes and hot tea on site we ended up having a very fun and insightful expedition. Any remaining low morale or cold feet quickly faded by the sight of pie at the end of the day.
Past environmental change on Mauritius has been the focus of research with the Palaeoecology & Landscape Ecology group at the University of Amsterdam (UvA) for a number of years. This research has been lead by Erik de Boer and Henry Hooghiemstra and has already resulted in a number of key publications on the environmental history of the island (de Boer et al., 2013, 2014, 2015). One current past environmental change research project working on Mauritius is being undertaken by Jona de Krui; a student within the UvA BSc Biology program supervised by myself and Erik. Jona’s is working on a study site (modern day swamp) on the north-east of the island and is focused on improving our understanding changes in the:
vegetation (macro-fossils) over the last c. 1000 years.
Jona has now completed the analysis of all his samples and we are currently collating the data sets; however, a number of the macro-fossils which he has discovered remain unidentified. Below are images of the unknown macro-fossils if you have any suggestions on identifications please comment, or get in touch directly.
2014 has seen more people visit this blog and more “clicks” through to articles than in any previous year (see Annual Report 2014). So thanks for reading! I hope that the information provided is useful. For me 2014 has been a big year of change; with the largest work related change being taking up my new post at the University of Amsterdam in September.
2015 promises to be an exciting year with a number of key projects generating exciting findings (including chironomid climate for the Neotropics, Andean flank evolution, and ‘deep time’ palynomorphs) , the start of the XPERT network, and new proposals and collaborations being developed here in the Netherlands (including new proposal to work in Europe!).
Any comments, thoughts or contributions on the blog welcome.