• 872 Citations
  • 17 h-Index
20032020

Research output per year

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Personal profile

Personal profile

Being an Associate Professor in the Department of Natural Resources,I aim to inform society about the fate of (semi) natural ecosystems. In many developing nations and upcoming economies, information on ecosystems is scarce. Nevertheless, ecosystems in these countries often harbour rich biodiversity and the indirect services they deliver to society are assumed to be large. To effectively protect and manage these systems requires reliable methods to estimate the current state and changes in these ecosystems from observations, both remotely sensed as well as from the ground. To this end, I study and teach on empirical spatial interpolation techniques (so called species distribution modelling in ecology or environmental niche modelling in agronomy), stress detection in vegetation with thermal infrared remote sensing techniques and how to extract early warning signals of tipping points in ecosystems from satellite time series. 

Teaching

Part of the NRM Curriculum and the iGEON distance based course.

Teaching topics related to:

  • Spatial Modelling
  • Species Distribution Models
  • Statistics
  • Modelling in R
  • Quantitative Ecology
  • Thermal spectroscopy
  • Field Work Preparation
  • Research Skills

Personal profile

Topics covered by current and past research include:

  • Species distribution modelling techniques, error propagation and applications for conservation
  • Hyperspectral thermal remote sensing of plant stress
  • remote sensing and spatial modelling to assess dynamics in ecosystems
  • Interactions between savanna vegetation patterns and fire
  • Early-warning for tipping points in ecosystems
  • Novel methodologies to determine carbon budgets of forests
  • Novel methodologies to create long time series from various geographical information sources,

Personal profile

Activities in capacity development

I have undertaken fieldwork in Australia, Bulgaria, India and South Africa and performed consulting and training service work in Burkina Faso, Costa Rica, Ghana, Greece, Indonesia, Kenya, Namibia, Russia (Sacha Republic), Rwanda, Uganda, and Vietnam.

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Research Output

Mapping suitability for rice production in inland valley landscapes in Benin and Togo using environmental niche modeling

Akpoti, K., Kabo-Bah, A., Dossou-Yovo, E., Groen, T. A. & Zwart, S. J., 20 Mar 2020, In : Science of the total environment. 709, 136165.

Research output: Contribution to journalArticleAcademicpeer-review

  • Abundance and spatial distribution of the main food species for mountain gorillas in the Virunga Massif, Rwanda

    Akayezu, P., van Duren, I. C., Groen, T. A., Grueter, C. C. & Robbins, M. M., 1 Nov 2019, In : Biodiversity and conservation. 28, 13, p. 3597-3620 24 p.

    Research output: Contribution to journalArticleAcademicpeer-review

  • Climate and land use changes will degrade the distribution of Rhododendrons in China

    Yu, F., Wang, T., Groen, T. A., Skidmore, A. K., Yang, X., Ma, K. & Wu, Z., 1 Apr 2019, In : Science of the total environment. 659, p. 515-528 14 p.

    Research output: Contribution to journalArticleAcademicpeer-review

  • 2 Citations (Scopus)

    Effects of Grazing and Browsing on Tropical Savanna Vegetation

    van Langevelde, F., van de Vijver, C. A. D. M., Prins, H. H. T. & Groen, T. A., 13 Nov 2019, The Ecology of Browsing and Grazing II. Gordon, I. & Prins, H. H. T. (eds.). 239 ed. Springer, Vol. Ecological Studies. p. 237-257 20 p.

    Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

  • ELSA: A new entropy-based statistic to measure local and global spatial structure : abstract

    Naimi, B., Hamm, N. A. S., Groen, T. A., Skidmore, A. K., Toxopeus, A. G. & Alibakhshi, S., Jul 2019, p. 1-1. 1 p.

    Research output: Contribution to conferenceAbstract

    Open Access
    File

    Datasets

    Changes in thermal infrared spectra of plants caused by temperature and water stress

    Buitrago Acevedo, M. F. (Creator), Groen, T. (Creator), Hecker, C. (Creator), Skidmore, A. (Creator), University of Twente, Faculty of Geo-Information Science and Earth Observation (ITC), 1 Aug 2018

    Dataset

    Activities

    • 1 Invited talk

    Using remote sensing to assess ecosystem functioning

    Thomas Groen (Speaker)
    6 Nov 2019

    Activity: Talk or presentationInvited talk