Tim Hofmeester

Tim Hofmeester
Animal ecologist interested in the coexistence of mammal communities and people. Camera trapper. Rookie Citizen and Social Scientist.


I am an animal ecologist interested in human-wildlife coexistence. I study both the influence of people on wild animals, and the influence that wild animals have on people. I have a soft spot for small carnivores, work mostly with mammals, but am generally interested in all wildlife. Furthermore, I have a strange interest in parasites and diseases, urban ecology, citizen science and social aspects related to wildlife.

My main tool to study animals are camera traps, although I don't shy away from other sources of information such as GPS collars and genetic data. I am involved in further development of camera trap deployment and data analysis.

I gave a TED talk at TEDx Ede in 2016, which can be viewed here:

The carnivore effect - from fairy tales to reality

I co-manage the Megafauna & Sustainability research unit together with it's leader Dr. Joris Cromsigt.


I am coordinator of the research school Ecology & Society (ECOS) run by the department of wildlife, fish, and environmental studies and the department of forest economics at SLU. We offer courses, workshops and seminars in topics on the interface between ecology, economy and sociology. I am coordinator for one of the courses: Ecology for non-ecologists, in which we teach the basics of ecology to PhD students that work in multidisciplinary projects including ecology but with a background in other sciences.

I am also the coordinator for PhD education at the department

I give some lectures in the Fish and Wildlife Census Techniques (BI1302) and Applied Population Ecology (BI1301) courses.


I work in several projects, which are presented in random order.

Scandcam is a collaboration between SLU and NINA in Norway that studies mammal communities using camera traps. Our main goal is to utilize data from a camera trapping grid that was deployed to study Lynx family groups to study interactions between species within the whole mammal community.

Beyond Moose studies the interactions between different ungulate species in multi-species communities. I am mainly involved in using camera traps to study these interactions.

ARCS - Arenas for co-operation through citizen science is a collaboration between Göteborg University, Umeå University, SLU and Vetenskap och Almanhet (Science and Public). We are building a platform supporting citizen science in Sweden. I am coordinating the workpackage on standardization and quality of data in citizen science.

Meet your wild neighbours / Träffa dina vilda grannar is a pilot project funded through SLU Urban Futures where we use citizen science and camera traps to study wildlife over an urban to wild gradient. Within this project, I collaborate with dr Roland Kays at the North Carolina Museum for Natural Sciences and North Carolina State University, Umeå kommun, Naturskolan and Svenska Jägareförbundet Västerbotten.


I work together with researchers at the Norwegian Institute for Nature Research (NINA), North Carolina State University, Göteborg University, Umeå University and different departments at SLU. Next to that, I work together with (local) stakeholders such as Umeå kommun, Vetenskap och Allmänhet and Svenska Jägareförbundet Västerbotten.


2012-2016 PhD in Disease ecology at Wageningen University, the Netherlands

2009 - 2011 MSc (with distinction) in Ecology at Wageningen University, the Netherlands


Currently I (co-)supervise one PhD student Nannet Fabri and several MSc students. 

If you are interested in doing an MSc thesis topic with me, please feel free to contact me.

Publikationer i urval

T.R. Hofmeester, S. Young, S. Juthberg, N.J. Singh, F. Widemo, H. Andrén, J.D.C. Linnell & J.P.G.M. Cromsigt (accepted) Using by-catch data from wildlife surveys to quantify climatic parameters and the timing of phenology for plants and animals using camera traps. Remote Sensing in Ecology and Conservation. doi: 10.1002/rse2.136

T.R. Hofmeester, J.P.G.M. Cromsigt, J. Odden, H. Andrén, J. Kindberg & J.D.C. Linnell (2019) Framing pictures: a conceptual framework to identify and correct for biases in detection probability of camera traps enabling multi-species comparison. Ecology and Evolution, 9, 2320-2336. doi: 10.1002/ece3.4878

T.R. Hofmeester, A.I. Krawczyk, A. Docters van Leeuwen, M. Fonville, M.G.E. Montizaan, K. Van den Berge, J. Gouwy, S.C. Ruyts, K. Verheyen & H. Sprong (2018) Role of mustelids in the life cycle of Ixodid ticks and transmission cycles of four tick-borne pathogens. Parasites & Vectors, 11, 600. doi: 10.1186/s13071-018-3126-8

S.E. Pfeffer, R. Spitzer, A.M. Allen, T.R. Hofmeester, F Widemo, N.J. Singh & J.P.G.M. Cromsigt (2018) Pictures or Pellets? Comparing camera trapping and dung counts as methods for estimating population densities of ungulates. Remote Sensing in Ecology and Conservation, 4, p173-183. doi: 10.1002/rse2.67

Tim R Hofmeester, Patrick A Jansen, Hendrikus J Wijnen, E Claudia Coipan, Manoj Fonville, Herbert H T Prins, Hein Sprong & Sip E van Wieren (2017) Cascading effects of predator activity on tick-borne disease risk. Proceedings of the Royal Society B Biological Sciences 284: 20170453. doi: 10.1098/rspb.2017.0453

Tim R Hofmeester, J Marcus Rowcliffe & Patrick A Jansen (2017) A simple method for estimating the effective detection distance of camera traps. Remote Sensing in Ecology and Conservation 3: 81-89. doi: 10.1002/rse2.25

Tim R Hofmeester, Hein Sprong, Patrick A Jansen, Herbert H T Prins & Sip E van Wieren (2017) Deer presence rather than deer abundance determines the population density of the sheep tick, Ixodes ricinus, in Dutch forests. Parasites & Vectors 10: 433. doi:10.1186/s13071-017-2370-7

Tim R Hofmeester, J Marcus Rowcliffe & Patrick A Jansen (2017) Quantifying the availability of vertebrate hosts to ticks: a camera-trapping approach. Frontiers in Veterinary Science 4: 115. doi: 10.3389/fvets.2017.00115