Visitors, seminars and focus weeks
We have invited around 20 colleagues for short visits. Each visit typically
included giving a
presentation; see
here for ASG talks.
In addition to seminar talks we have been organizing focus week meetings:
Our first focus week took place from 7 to 10 September, where 12 scientists gave
talks. Please see here for the programme of this meeting.
Our second focus week took place from 2 to 6 November, where 10
scientists gave
talks. Please see here for the programme of this
meeting.
In a way, we had a more informal third focus week from 22 to 27
November, with 8 scientists visiting the ASG and 4 of them giving
talks. Please see here for their talks.
Research projects (initiated by ASG activities and ongoing projects supported by the ASG)
F.Bartumeus, D.Boyer, A.V.Chechkin, L.Giuggioli, R.Klages, J.Pitchford, N.W.Watkins, position paper on statistical physics and anomalous dynamics
of foraging 
F.Bartumeus, D.Boyer, A.V.Chechkin, L.Giuggioli, R.Klages, J.Pitchford, N.W.Watkins, A toolbox for analysing foraging data from an anomalous dynamics perspective 
G.Blackburn, A.V.Chechkin, N.W.Watkins, R.Klages, Levy walks and optimality in foraging 
D.Boyer, D.Campos, F.Bartumeus, Foraging with memory in seabirds 
D.Boyer. A.Chechkin, Levy flights with resettings 
D. Boyer, L. Giuggioli, Localization of random walks by memory 
A.Cairoli, A.V.Chechkin, R.Klages, A.Baule, Frame invariance in anomalous dynamics 
R.L.Collings, S.Delius, A.James, J.S.Plank, J.Pitchford, penguin foraging

P. Dieterich, O. Lindemann,
M.L. Moskopp, S. Tauzin, A. Huttenlocher, R. Klages, A.V. Chechkin,
A. Schwab, Asymmetric superdiffusion of neutrophils under chemotaxis 
P.Dieterich, A.Schwab,
A.V.Chechkin, R.Klages, Anomalous fluctuations properties of cell migration under
chemical gradients 
S.Gupta, L.Giuggioli, Animal home range models: a comparative analysis

R.LloretCabot, R.Klages, A.V.Checkin, W.Ryu, F.Bartumeus, Anomalous dynamics in C.elegans 
R.Klages, S.G.Gallegos, T.Hamalainen, J.Solanpaa, E.Rasanen, Diffusion
in soft periodic potentials 
N.W.Watkins, C.Franzke and S.C.Chapman, Hurst effect, `1/f' noises, and long range dependence

Articles (in alphabetical order)
published:
F.Bartumeus, Behavioural ecology cannot turn its back on Levy walk research;
Comment on "Liberating Levy walk research from the shackles of optimal
foraging" by A.M. Reynolds, Physics of Life Reviews 14, 8486 (2015)

A. Bodrova, A.V. Chechkin, A.G. Cherstvy, R. Metzler, Quantifying
nonergodic dynamics of
forcefree granular gases, Physical Chemistry Chemical Physics 17
2179121798 (2015) 
D.Boyer, I.Pineda, Slow Levy flights, Phys. Rev. E 93, 022103 (2015) 
K. Burnecki, A. Wylomanska, A.V. Chechkin, Discriminating between Light and HeavyTailed
Distributions with Limit Theorem, PLoS One 10 (12), e0145604 (2015)

D.Campos, F.Bartumeus, E.P.Raposo, M.Vicenc, Firstpassage times in multiscale
random walks: The impact of movement scales on search efficiency,
Phys. Rev. E 92, 052702 (2015) 
R.Klages, Extrem gesucht, Physik
Journal 14 (12), 2223 (2015) (News and Views article, in German) 
M.Krummel, F.Bartumeus, A.Gerard, Tcell Migration, Search Strategies and
Mechanisms, Nature
Reviews Immunology 16 (2) (2016) 
I. Pavlyukevich, Y. Li, Y. Xu, and A.V. Chechkin, Directed
Transport Induced by Spatially Modulated Levy
Flights, Journal of Physics A  Math. Theor. 48, 495004 (2015) 
T. Sandev, A.V. Chechkin, H. Kantz, I.M. Sokolov,
R. Metzler, Distributedorder diffusion equations and multifractality:
Models and
solutions, Phys. Rev. E
92, 042117 (2015) 
R.M.Tromer, M.B.Barbosa MB, F.Bartumeus, J.Catalan, M.G.E.da Luz, E.P.Raposo,
G.M.Viswanathan, Inferring Levy walks from curved trajectories: A rescaling
method, Phys. Rev. E 92, 022147 (2015)

accepted, in print:
R.Klages, Search for food of birds,
fish and insects, invited book chapter in: A.Bunde, J.Caro,
J.Kaerger, G.Vogl (Eds.), Diffusive Spreading in Nature, Technology
and Society. (Springer, Berlin); accepted (April 2016)

J.P. TaylorKing, R. Klages, S. Fedotov, R.A. Van Gorder, A Fractional
Diffusion Equation for an nDimensional Correlated Levy Walk,
Phys. Rev. E, accepted for publication, in print (June 2016) 
F.Bartumeus, D.Campos, R.LloretCabot, V.Mendez, W.Ryu, J.Catalan, Foraging
under uncertainty: space use and search tradeoffs 
A.V. Chechkin, E. GudowskaNowak, M. Bier, Breaking Microscopic Reversibility with Levy Flights

T.Graves, R.Gramacy, N.W.Watkins, C.Franzke, A brief history of long
memory: Hurst, Mandelbrot and the road to ARFIMA, preprint arXiv:1406.6018

V.V. Palyulin, A.V. Chechkin, R. Klages, R. Metzler, Search reliability and search
efficiency of combined LevyBrownian motion: long relocations mingled
with thorough local exploration, submitted to J. Phys. A:
Math. Gen. (April 2016) 
T. Sandev, A.V. Chechkin, A. Iomin, H. Kantz, R. Metzler, Generalized comblike model with
slow and ultraslow diffusion 
Yu. Zhou, A.V. Chechkin, I.M. Sokolov, H. Kantz, Origin of temporal scaling behavior in earthquakes

N.W. Watkins, Mandelbrot's 1/f fractional renewal models of 196367: The nonergodic
missing link between change points and long range dependence,
preprint arXiv:1603.00738

Talks
Conferences, workshops, symposia:
D. Boyer, invited talk Slow Levy
flights and related pathdependent processes for animal movement
at the International Workshop on Nonlinearity, Nonequilibrium
and Complexity: Questions and Perspectives in Statistical Physics,
Nov. 29  Dec. 4, 2015, Mexico City 
D.Boyer, invited participation at the
workshop on FissionFusion Dynamics and Behavioral Flexibility:
Comparative Perspectives Casa Hamaca, Valladolid, Yucatan, Mexico, 2023
October 2015 (nb: no formal talks, only working sessions)

A.V.Chechkin,
talk at the conference Anomalous diffusion: wild and bad?, Bad Wildbad, Black Forest; 3/107/10/2015 
A.V. Chechkin, invited talk ScaleInvariant Brownian
Motion in Heterogeneous Media at the KIAS Workshop
on Anomalous Dynamics in Biological Systems, Korea Institute for
Advanced Study, Seoul; 3/95/9/2015 
R.Klages, invited talk at the symposium on
Fluctuation driven phenomena in nonequilibrium statistical
mechanics, Warwick, UK; 2125/9/2015 
R.Klages,
talk at the conference Anomalous diffusion: wild and bad?, Bad Wildbad, Black Forest; 3/107/10/2015 
R.Klages,
invited plenary talk Search for Food of Birds,
Fish and Insects at the
conference Diffusion
Fundamentals VI, Dresden, Germany; 23/826/8/2015
[talk] 
Colloquia, seminars, lectures:
A.V.Chechkin, lecture for graduate students Fractional Kinetics and Levy Flights, Jagellonian University of Krakow, 30
November 2015 
A.V.Chechkin, seminar Anomalous Langevin Equations and their use in Stochastic Climate
Theory MPIPKS, Climate Group Meeting, 18 November 2015 
A.V.Chechkin, seminar Scaleinvariant Markov Random Motions in Inhomogeneous and Nonstationary
Media, University of Padova, 09 November 2015 
A.V. Chechkin,
joint seminar in the groups "Statistical Physics and nonlinear dynamics" and
"Physics of complex systems and neurophysics"
at the Institute of Physics, Humboldt University of Berlin; 22/10/2015 
R.Klages, seminar in the
Ergodic Theory and Dynamical Systems group, Mathematics Institute,
University of Warwick, 17/11/2015 
R.Klages, colloquium at the Institute of Physics, University of Osnabrueck, 22/10/2015 
R.Klages,
seminar Statistical Physics and Anomalous Dynamics of Foraging, MPIPKS Dresden, 22 July 2015 [talk] 
J.Pitchford, seminar Can Penguins Play
Chess? at the Department of Mathematics and
Statistics, University of Canterbury, New Zealand, 15/10/2015 
N.W.Watkins, seminar
Mandelbrot's
other model of 1/f noise: "Conditional stationarity" and
weak ergodicity breaking as seen from the mid sixties at the London
Mathematical Laboratory, 20/11/2015 
Funding
6months project grant awarded from
the Office
of Naval Research Global (USA/UK) to support a visiting guest scientist
(N.W.Watkins) and a project student (G.Blackburn) for our Advanced Study Group
(approx. US$27,700)
Collaborations at MPIPKS
Dr. Eduardo Altmann 
Junior Research Group on Dynamical systems and
Social Dynamics 
complex systems,
nonlineardeterministic and stochastic processes, statistical
properties of collective human activities like language 
Dr. Benjamin Friedrich  staff scientist in the Division Biological Physics  mechanical and chemical regulation in biological systems 
Prof. Holger Kantz 
research
group Nonlinear
Dynamics and Time Series Analysis 
complex dynamics, nonlinear stochastic
processes, (nonequilibrium) statistical physics, extreme events, time
series analysis 
Dr. Vasily Zaburdaev 
research group Collective Dynamics of Cells 
biofilms, motility, random walks and
anomalous diffusion, chemotaxis 
The Complex System Reading Group at PKS organised a 1 1/2h session on Foraging and optimal search strategies on 12 August 2015 in which some relevant papers introducing to this topic were discussed.