Arpat’s Antrittsvorlesung

Our Lab is proud to announce Arpat’s “Antrittsvorlesung” (inaugural lecture), which will be held Monday, 11 November 2013 at 5 pm at the University of Zurich.

I thought I post it on our blog to put some extra pressure on Arpat… 😉

inaugural lecture Ozgul

Do not miss that out… apparently the apèro afterwards is really nice! Oh, yeah and of course the lecture will be absolutely amazing

Mollie Attended an ADMB Developers’ Workshop in Iceland

After the ADMB Developers' Meeting, I investigated the thermal activity in Iceland.

This photo has nothing to do with the workshop. I did some hiking after the workshop and found this huge boiling cauldron of water in the land of fire and ice. The landscapes were amazing with so much geothermal activity, old lava fields, and water falls.

The main purpose of my trip to Iceland was to work September 18-22 with eleven other developers on the statistical software Automatic Differentiation Model Builder (ADMB) at the University of Iceland and the Marine Research Institute in Reykjavik, Iceland. ADMB is useful for fitting nonlinear models and has the flexibility to fit random effects. It’s nearly as flexible as MCMC methods like WinBUGS, but much faster and without the need for specifying prior information (it’s really cool!).

It’s so much easier to get everyone engaged in a discussion and making decisions when we’re all working in the same room, rather than over email when we’re spread out over the corners of the earth. Since we had developers coming from North America and Europe, Iceland was a good midway point, and we had an excellent Icelandic host.

We discussed many important decisions for how to move forward with the software including documentation, parallelization, the most efficient linear algebra libraries, optimizers, links to R, and potentially moving to Github. We’re working to make the documentation easier for new users and writing an introduction aimed especially at R users. We discussed teaching workshops in the near future. We have one scheduled at the International Statistical Ecology Conference and we’re interested in teaching to other groups as well. Let me know if you’re interested.

Moving forward – Animal Movement Ecology Summer School

The last week of August could not have been more hectic and inspiring for some of the people of our lab. The first Animal Movement Ecology Summer School held at the University of Zurich as part of the PhD Program in Ecology of the Life Science Zurich Graduate School has been a great success. We managed to bring together 30 highly dedicated and motivated participants from UZH/ETHZ and from overseas as well as seven top lecturers for what has been an intense and dynamic week.

Participants had the opportunity to alternate high-quality lectures – covering a wide range of topics, such as remote sensing, home-range and movement analysis, patch occupancy models, population dynamics – with some social activities, such has bbq and the long-sought-after jump in the Limmat, the local river. The scope of such activities was to quickly create a cohesive group and promote interactions among the participants and with the lecturers to establish future collaborations. A great success has been the day organised at the Tierpark Goldau, where we had the possibility to follow lectures in a natural and inspiring environment.

 

Participants interacting during one exercise in the suggestive class room at the Tierpark Goldau
Participants interacting during one exercise in the suggestive class room at the Tierpark Goldau

We, organizers, received very positive feedbacks from all participants, which is very encouraging, and we are therefore keen to offer a similar, and even more exciting, course during the summer 2014! Stay tuned on this blog if you do not want to miss-out and want to…keep moving forward!

Necklaces for the girls, cars for the boys – Preparations for the first meerkat field season

Cable tie and epoxy instead of diamonds

My name is Maag – Nino Maag, and I am about to start my PhD in the Population Ecology lab. During my study, I will investigate dispersal strategies in a wild population of the Kalahari meerkat (Suricata suricatta) in South Africa. I will use high-resolution GPS telemetry data collected from GPS radio collared dispersing female subordinates to investigate the influence of individual traits, environmental factors and social context on transition and settlement strategies. Furthermore, I will assess the survival rates of dispersing females during the stages of transition and settlement. The results of my study shall provide the complementary information on dispersal for more comprehensive spatially explicit population dynamics models and the investigation of alternative life history strategies.

Alex is applying the epoxy.
Alex is applying the epoxy.

In order to acquire movement data of the dispersing individuals, we had to prepare GPS collars. However, two days before leaving for South Africa, the GPS collars yet had to be built. For this reason we set up a workshop in our office in Zurich. On Monday afternoon, 23 September, Gabriele and I were supposed to take a plane to Johannesburg and on Saturday morning we started the workshop. Alex, engineer at CDD Ltd in Athens, followed in for the weekend to build the collars with us.

GPS collar.
GPS collar.

Since meerkats are small animals and we plan to collect detailed dispersal data in an extended area over a time period of six months, GPS collars have to meet a set of specific requirements: The weight has to be below 25 grams, the coating must be robust but should not interfere with the GPS signal, the belting can not be too edgy, and both the GPS data collection schedule and the bidirectional remote communication regime (ZigBee) should be as frequent but in the same time as economic as possible. The GPS device, VHF sender, ZigBee component, and battery were coated with epoxy. We applied cable tie as belting, which will later get covered with heat shrink to make the edges smooth. The epoxy may not be as shiny as diamonds, but the girls will still be fitted with decent solid necklaces.

After a hard weekend’s work, which lasted until Monday noon, Gabriele and I just managed to catch the plane in the afternoon.

Big cars for big boys

In the early Tuesday morning, Gabriele and I arrived in Johannesburg. I bought some airtime and data for my iPhone, Gabriele a new cell phone. After that we picked up the rental car and headed out to buy a field vehicle. Equipped with a Kia picanto and a Tomtom, everything was prepared for the day becoming a successful journey. I have to tell you though, Johannesburg is quite a big city and it took time to visit the different car dealers in the different neighborhoods, especially without a street map. Fortunately, our hosts Nancy and Greg at the Strathavon bed and breakfast were very nice and, besides offering an extra bedroom for free, provided us with a street map, which enabled us to plan next day’s car search a lot more efficient.

Two experts do the technical examination of our Toyota Hilux.
Two experts do the technical examination of our Toyota Hilux.

On Wednesday afternoon we tried our luck in Pretoria. That was a smart move as we found two nice vehicles on that day. Two good-looking Toyota Hilux 3.0 4×4, both were diesel and in good condition. Just the type of car we need! On Thursday we even found a third one. All three dealers agreed to bring their vehicle to a mechanic for full mechanical examination. Well, I had to learn that you should not trust these people too much. One changed his mind and did not bring the car at all, and the second one sold the car to someone else while we were making the technical examination. First comes, first serves! That left us with only one car, a Toyota Hilux 3.0 Diesel 4×4 KZ-TE 2004. To be honest, that was the best one anyway. What a nice car!

Our new hosts Jenny and Pat, the owners of the Sengwe Place bed and breakfast, provided us with an entire apartment. They are such friendly and welcoming people, and, besides a lot of other things, they helped us to buy insurance for the car. On Friday we will hit the road and eventually drive to the field site near Van Zylsrus, Northern Cape. Lets chase some meerkats.