“Can you go back?” by Mark Bush – Photo gallery

September 27, 2019
WDG

Mark Bush

Mark Bush

The three part guest blog posts “Can you go back?” by Prof. Mark Bush (Florida Institute of Technology) contained images collated by Mark over his career, here they are all together for you to enjoy.

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“Can you go back?” by Mark Bush – Part 3

September 23, 2019
WDG

Mark Bush

Mark Bush

The third of three guest blog posts by Prof. Mark Bush (Florida Institute of Technology). Click here to read Part 1. Click here to read Part 2.

Fast forward to 2019, the Aguarico is now lined by small homesteads interspersed with larger settlements, some laid out by the oil companies, and a couple of oil ports. I asked our guide how far the park was ahead of us, and he looked surprised and said “We are in it”. When we arrived at the Zancudo River there was a cell tower and a village of probably 30-50 houses on the junction with the Aguarico. Ten minutes downstream was a tourist lodge. What a difference! The frontier had expanded ~140 km down the Aguarico. One family with a shotgun eliminates all game larger than a marmoset within 5 km, and these homesteads were packed so tight it was unsurprising that we saw almost no wildlife.

The cell tower at the village of Zancudococha. Photo: M. Bush.

The cell tower at the village of Zancudococha. Photo: M. Bush.

The next day we ventured onto Zancudococha. The Zancudo stream was still pretty, overhung by trees, and had no barriers to navigation. Three boats full of tourists passed us coming out of the lake, clearly having spent the night there. There were no logs to clear, and the path through the Montricardia marsh was two boats wide. There are only two patches of high, dry land on the edge of the lake. One was regularly used as a campsite and the other had a lodge built on it that was operated intermittently by the Zancudo community.

We saw no monkeys, let alone tapirs, this was an empty forest. But we weren’t there to be ecotourists, we were there to raise a sediment core. This time our questions were about the Pre-Columbian use of the lake. Was the lake occupied prior to European arrival? How much did people alter the forest? Was there a surge of forest regrowth following Conquest?  Given these questions, the 1 m of sediment that we recovered with a Universal piston corer was all that we needed. One meter of mud from this system spans about 1500 years and that would provide us with the trajectory of use (or non-use) into the colonial period and its aftermath. Our mood in camp was happy, we had been successful in our intent. So, my message is you can’t go back to find what was there before, but that doesn’t mean that it will be a bad experience. Shifting baselines apply to nature in every setting, but they also apply to science as our questions and interests undergo inter-generational changes.

Mark Bush is a Professor of Biological Science at the Florida Institute of Technology, Melbourne, FL, USA.

 

A Study in Green

July 5, 2019
WDG

By Rachel Sales (Florida Institute of Technology, USA)

My bike is angry at me.

I’m rattling down an unpaved road in the Ecuadorian Amazon. The brakes screech at every turn, and the chain is close to falling off. Unsurprisingly, the rain is pouring, turning the road into a maze of puddles and mud. The road follows the Anzu River, and I can hear its roar off to my right.

I’m forcing a perfectly innocent bike to brave the Amazon because this road leads to the Herbario Amazónico of the Universidad Estatal Amazónica (ECUAMZ). ECUAMZ (an acronym for “Ecuador Amazon”) is the only herbarium in the Amazon, and contains a repository of plant specimens for preservation and help with field identifications. It was established by Dr. David Neill, a specialist in the Fabaceae (legume) family and world-renowned expert in tropical botany, and Dr. Mercedes Asanza, the coordinator of the herbarium. They have agreed to mentor me over the summer and teach me about tropical plants. The Herbario Amazónico, which contains over 17,000 vascular plant species, is the perfect place to learn.

The view from the top of the tower at Jatun Sacha.

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Cloudy with a chance of adventure

April 8, 2019
WDG

Rachel Sales, Bryan Valencia, and Majoi de Novaes Nascimento coring a different lake. In this picture, we have just pulled a core of mud up from the bottom of the lake. Photo credit: Seringe Huisman

Rachel Sales, Bryan Valencia, and Majoi de Novaes Nascimento coring a different lake. In this picture, we have just pulled a core of mud up from the bottom of the lake. Photo credit: Seringe Huisman

Cloudy with a chance of adventure
By Rachel Sales (PhD researcher at the Institute for Global Ecology, Florida Institute of Technology)

I am sitting on the shore of Lago Condorcillo in Southern Ecuador, after a long day of travel, trying to control my shivering. At roughly 10,500 ft. above sea level, the lake is very cold, with wind that howls over the barren hills dotted with giant boulders. The lake is also almost always blanketed by thick fog and pelted by driving rain. When you’re surrounded by the thick fog punctuated by lightning bolts, it’s easy to believe that some lost civilization lurks just out of sight. Tonight we are experiencing lightning storms, which is adding to the feeling that some angry, ancient life form must live at Lago Condorcillo.

Tomorrow, I will be out in the cold and rain, balancing on an inflatable boat and fighting frostbite. Mark Bush, who is my Ph.D. advisor, Courtney Shadik, who is my lab partner and tent buddy, and I will be collecting cores of mud from the bottom of Condorcillo. We will create our rig for coring by tying two inflatable boats together, and placing a wooden platform between them. Mark, Courtney, and I will then collect our mud cores from this platform.

As I’m contemplating the hazards of camping in a lightning storm, Mark says, “Tell me everything that went wrong today.” Courtney pulls a sleeping bag closer to her. I begin to describe how Google Maps can’t seem to understand distance in the Andes, and so traveling to Lago Condorcillo took much longer than we anticipated. Courtney laughs beside me and adds, “We don’t have any matches to start a fire.” Despite our troubles, I am grinning from ear to ear, no doubt spoiling the grim mood Mark is attempting to cultivate and Lago Condorcillo is doing its best to enforce.

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An undergraduate eye-view of an Andean lake-coring expedition

August 23, 2017
WDG

Part 1: Huayabamba
by Molly Kingston (a BSc Biological Sciences student at Florida Institute of Technology, taking part in an expedition lead by Prof. Mark Bush)

When I first heard about this class in Peru, I had no idea that I was going to experience so much in such a short period. Our goal was to visit two lakes in Peru and raise sediment cores for paleoecology. The first lake that we went to was Laguna Huayabamba, which sits at about 3250 m elevation in the La Libertad region of the Peruvian Andes.

However, getting to this lake was no easy task. Before the hike even started, we had to obtain the necessary permits and permission from the local people. After several days of visiting different town officials and waiting for approval, we could set out on our adventure.

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Ecology of the past on film: Hayley Keen

October 6, 2015
WDG

Whilst conducting her PhD research Hayley Keen helped produced two of short films about her research project Past environmental change on the eastern Andean flank, Ecuador:

  1. on her field work, which was the winning entry into the American Geophysical Union (AGU) student video competition in 2014, and
  2. a presentation summing up her PhD project in just 3 minutes!

First prize in the AGU student video competition (2014)

Three minute thesis (The Open University, 2014)

Follow Hayley’s ongoing research on this blog and on Twitter @Hayley1keen 

Palaeoecology at UvA and Twente 2015: Teaching and Learning

September 21, 2015
cmcmicha

By Crystal McMichael

The month-long palaeoecology module at UvA is coming to an end. We have had two weeks of lectures and microscope work, an introduction to quantitative palaeoecology, and we just finished a week of fieldwork in Twente, which is in the easternmost part of the Netherlands.

Students working in the field (photo: M. Groot)

Students working in the field (photo: M. Groot)

Will Gosling and I tried something new for the field excursion this year. We split the class into eight groups, and gave each group a set of pollen and phytolith samples from an ‘unknown location’. Unknown in this context means being from one of the eight primary sites that we would visit during the field excursion. The students were required to perform vegetation surveys and characterize soils at each of the primary sites that we visited. The goal of each group was to figure out which location their set of ‘unknown’ samples came from. Basically, we had them doing forensic palynology, with idea that they could then better visualize the different vegetation assemblages seen in the palaeoecological records.
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JOB: PhD candidate in Palaeoecology & Landscape Ecology

July 28, 2015
WDG

UvAInstitute for Biodiversity & Ecosystem Dynamics
Faculty of Science

University of Amsterdam

Characterization of Neotropical ecosystems by their modern pollen spectra and organic chemical composition

  • Develop skills in pollen identification, pollen chemical characterization, and the analysis of organic biomarkers.
  • Examine ecological variation across an altitudinal gradient of nearly 4000 meters on the tropical western Andean flank.
  • Improve understanding of how ecosystems function in a biodiversity hotspot, and how they might be identified in the fossil record.

Mashpi (25)The considerable biodiversity of Neotropical ecosystems is under pressure from projected climate change and human activity. Modern ecosystems can be characterized by their pollen rain and organic chemistry, which can in turn provide information about ecosystem health and functioning. However, little is known about how pollen assemblage and chemical composition (of pollen and plants) vary along environmental gradients. Altitudinal transects provide an opportunity to study a range of environments and ecosystems with a relatively small geographic area. By improving our understanding of modern ecosystems we can improve our interpretation of fossil records, and consequently better understand how modern ecosystems came into being.

The main objectives of this PhD project are to:

  1. Generate the first modern pollen assemblage and chemical data set for the Neotropics,
  2. Characterize the landscape-scale variation in pollen assemblage and chemistry composition, and
  3. Identify the key environmental drivers that determines pollen assemblage and chemistry composition variation.

Publication date: 27 July 2015
Closing date: 18 September 2015
Level of education: University (Masters)
Hours: 38 hours per week
Salary indication: €2,125 to €2,717 gross per month
Vacancy number: 15-286

Applications should be emailed to application-science@uva.nl, with in the subject line the position you are applying for and vacancy number (15-286). Please make sure all your material is attached in only one pdf. Applications should include a detailed CV including educational experiences, a list of research projects and/or publications, a letter of motivation, relevant work experience, and the names and contact addresses of two academic referees from whom a reference for the candidate can be obtained.

For more details, including information on how to apply, click here (UvA), or here (via academic transfer).

For further information visit the Palaeoecology & Landscape Ecology web pages, or contact Dr. William D. Gosling  directly.

Ecuador Fieldwork : Lake Huila

January 14, 2014
nicholasloughlin

Lake Huila

Lake Huila

So we’re back from a hot and humid Ecuador to the joys of a British winter. Ecuador is an amazing country and the diversity of the flora and fauna surpasses anything that I have experienced before. Continue Reading

Introducing Adele Julier: New PCRG PhD researcher

October 14, 2013
adelecmj

Adele Julier

Adele Julier and a Malvaceae

Hello! I’m Adele and I started my PhD about a week ago. It’s been a little intense but I can almost find the lab without a map now, so it is probably time to introduce myself.

I’ll be studying pollen-vegetation relationships in Ghana, as part of the NERC funded project500,000 years of solar irradiance, climate and vegetation changes’. This means I’ll be using pollen traps to figure out how pollen outputs vary between (and sometimes within) different vegetation types in Ghana. I will also be trying my hand at chemotaxonomy and video making. I’m heading out to Ghana (along with Phil Jardine) in just over a week to do my first lot of field work which will involve seeing the plots, collecting existing traps, replacing them with new ones, and setting up some new sites. I’m very excited.

My background is broadly botanical; I did a BA at Magdalene College, Cambridge in Natural Sciences specialising in Plant Science and then an MSc in Biodiversity and Taxonomy of Plants at the Royal Botanic Gardens, Edinburgh.

Here’s a picture of me holding the biggest Malvaceae flower I’d ever seen and being incredibly happy about that.

To find out more about me visit my blog: Plants in real life

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