October 31, 2013
NEW from the Department of Environment, Earth & Ecosystems at The Open University a Massive Open Online Course:
Introduction to Ecosystems
Starts 18-Nov-13
Runs for 8wks and needs 3hrs per week
Completely free and needs no prior knowledge.
Course description: “Ecosystems is about the relationships between living organisms. Gain an understanding of the natural world and how the web of life works, with illustrations from around the world.”
REGISTRATION NOW OPEN
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October 2, 2013
Section of fossil wood from Ecuador
Having been away for half of the month I asked people to provide a summary of what they have been up to. Here is what they admitted to…
Natalie Ludgate and Lottie Miller have submitted their theses! Well done.
Hayley Keen: “Continual pollen counting, second lot of Argon dating done, and first set of wood macrofossils back and ready for identification!”
Frazer Bird: “At the start of September I began working as a technician as part of Encarni’s project. I am looking at the midges from the core we collected together on our last field trip. Things are going well, although the midges are hard to find in the older sections the preservation in early sequences is great. The resolution of this core looks to be fantastic also so and hopefully we will get some interesting results when we compare all the proxies. Away fromthe lab I presented at INTECOL 2013 in London, The talk seemed to go down well and was noted as highly commended by the judging panel. Great publicity all round for the midges!!!”
Bryan Valencia: Has been on field work in Peru during this time he presented a talk on climate change to the Asociación para la Conservación de la Cuenca Amazónica, and gave interviews to local journalists and two TV stations. He also collected sediments from two locations, and manged to obtain a new US visa. He is now working on the final stages of submitting his thesis.
Phil Jardine: Phil has been busy ordering in microscopes and other equipment for the Lake Bosumtwi project (the first of which arrived today), and setting up the trip to Ghana that he’ll be going on with new PhD student Adele Julier in late October. He’s also been attempting to learn more about geochemistry, which has proved challenging.
William Gosling: “I have been promoted to Senior Lecturer (hooray), started work on the new level 2 environmental science module, been working on a new paper from the Erazo study site, and had a holiday!”
October 1, 2013
Human modification of the landscape in the Andes (Peru)
Whilst working on intergrating palaeoecological and archaeological data for a recent publication (Gosling & Williams, 2013) I was struck by the range of sources I had to go to to obtain data from the two different disciplines. The paper focuses on the how societies in the high Andes have developed over the last 5000 years and the role, if any, that changes in natural resource (ecosystem service) avaliability might have played in pacing any societal changes. However, when I got the first set of review comments back I was left considering my (academic) resource base, how I accessed this, and how that influenced my ability to conduct research; especially when moving slightly outside the area of my specialism.
September 4, 2013
Will’s BES T-shirt logo swabbed at Greenman; for more microbes on festival kit visit the “Hall of shame” on http://www.besfest.org
August was a month for travel with PCRG members heading for Peru (Bryan, and he is still there), Greenman festival (William), INTECOL conference (William and Frazer), and the Royal Geographic Society annual meeting (William, Encarni, Frazer and Hayley). Detailed reports of the UK based travels are already on the blog, and hopefully we will get a post from Bryan on his Peruvian adventure once he is back.
Back in Milton Keynes work progressed with:
August 28, 2013
Sex & Bugs & Rock n Roll at INTECOL: The BES sponsored tour of music festivals (http://www.besfest.org) landed at INTECOL. David Price from Science made Simple (http://www.sciencemadesimple.co.uk/) arrived on the Wednesday day afternoon to show what can be achived with professional science busking.
INTECOL 2013
18-23 August
ExCeL London
As a palaeoecologist when I came back to the UK from my post doc in Florida I started to get involved with the British Ecological Society (BES) so I could meet neoecologists. Eight years later I am still involved in the society and delighted that the theme of the society’s centenary celebration meeting focuses on change through time: Into the next 100 years. With 11 plenary lectures, dozens of parallel session, hundreds of posters and other activities including Pecha Kucha talks, workshops, field trips and trade stalls I will restrict my post to my thinking about the theme of timescales and the broader messages I got from the meeting.
August 2, 2013
Woodland resources in the high Andes have varied through the last 5000 years and influenced human societal development. The relationship between people and natural resources in the Andes is explored in the recently published Gosling & Williams (2013); http://dx.doi.org/doi:10.1177/0959683613496296
In July we have managed to get a number of individual blog posts out so teaching activity on summer school, publications and conference reports have already been covered. Behind the scenes progress in the lab has continued despite the hot weather:
July 31, 2013
Water resources in the Vacas region (near Cochabamba, Bolivia) deminished around the time of the founding of the urban centre at Tiawanaku
Gosling, W.D. & Williams, J.J. (2013) Ecosystem service provision sets the pace for pre-Hispanic societal development in the central Andes. The Holocene, 23(11): 1617-1622. doi: 10.1177/0959683613496296
Click here to download an open access version of this manuscript via The Open University Open Reseach Online repository.
July 31, 2013
Students examining the sedimentary deposits at Howick Haven
SXG288 Practical science: Earth and environment
Sedimentary Rocks & Fossils in the Field
23-29 July 2013
Face-to-face teaching of practical skills in field geology is one of the most interesting and rewarding aspects of being a lecturer at The Open University. Over the last few days I have been lucky enough to participate in the running of the Sedimentary Rocks & Fossils in the Field topic within our second level Practical Science module (SXG288). This is one of two opportunities that students taking this module get to head into field, examine rocks, develop observational skills and test scientifc hypotheses; the other field based topic is Igneous & Metamorphic Rocks in the Field.
Sedimentary Rocks & Fossils is based from Longridge Towers School in Northumberland (whilst the regular students are away). Longridge provides the ideal base for this topic because of its close proximity to some world class sedimentary rock and fossil exposures. Over an intensive three day field experience students examine sedimentary deposits from the Silurian and Carboniferous exposed mainly along the Northumberland coast; however, this is not a simple guide to the geology of the region. The topic is founded on the principle of problem based learning and at each field location students are expected to make observations, record them accurately and interpret the past environment. Findings are consolidated and dicussed during evening lab sessions.
On the rocks at Scremerston
This year we were delighted to welcome >40 students, some of who flew in from abroad, to study this topic over two sessions. Given the positive feeback recieved so far I think all enjoyed the topic and gained important geological field skills (for evidence of this also see photos below). I wish them all luck in their future studies and hope that they continue to be interested in Earth Science and progress towards our Natural Science degree qualification.
For further photos see below, follow #SXG288 on twitter, or visit the SXG288 Facebook page.
July 30, 2013
Earlier this month Rachel Gwynn (Geography, UCL) visited the PCRG to use our core splitter to reveal what was contained within two cores collected from the Carribean. She has also been kind enough to provide photos of the sediments and an insight into the story so far:
Sediments from Fresh Water Pond Barbuda (Photograph Rachel Gwynn)
Lake sediment cores covering the past few hundred to thousand years have been taken from two lakes, Wallywash Great Pond in Jamaica and Freshwater Pond in Barbuda. The sediments form part of the NERC-funded project Neotropics1k (PI Prof. Jonathan Holmes), which is concerned with climate variability in the northern Neotropics over the past millennium. The sediment cores show marked changes in composition and colour, from pale marl to dark organic mud. These colour changes, which are clearly visible in the photographs, represent changes in sediment composition that are in turn related to lake-level variations caused by long-term climate shifts. Deeper, open-water conditions under wetter climate are represented by the marls, whereas lowered lake levels, caused by direr climate, are associated with organic-rich sediments.
Wallywash Great Pond– core section W2
Barbuda Freshwater Pond- core section FWP
Wallywash Great Pond Jamaica (photograph Rachel Gwynn)
July 17, 2013
Trecking with sediment corer in the high Andes of Peru
When it comes to collecting sediments from lakes its all about having the right tools for the job. Working in remote areas of the tropics we tend to favour the Colinvaux-Vohnout corer; supplied by Vince Vohnout at Geo-core). The advantages of this system are:
Eric Martinez carrying an Avon Redstart back out from Laguna Khomer Kotcha (Williams et al., 2011a)
With the right platform (two banana boats and an A-frame) we have manged to retrive c. 20 m of sediment from 20 m of water (c. 40 m of drill rod extended); Lake Pacucha, Peru (Hillyer et al., 2009). More typically we use two Avon Redstart inflatables and a platform following the design of Colinvaux et al. (1999).
Recent debate on the International Paleolimnology Association list server saw recommendations for a number of other systems.
Including: UWITECH gravity corer, Pylonex gravity corer, Aquatic Research Instrument products, and modified systems by Jason Curtis at University of Florida.
I would be interested if anyone has any thoughts on the relative merits of these systems (or others) and there capabilities.
Photos and references below:
Ecology of the past 