Marco Visser
Assistant Professor
- Name
- Dr.ir. M.D. Visser
- Telephone
- +31 71 527 2727
- m.d.visser@cml.leidenuniv.nl
- ORCID iD
- 0000-0003-1200-0852

Marco Visser studies how biodiversity and ecosystems respond to multiple stressors, including climate change, disease, and pollution.
Professional experience
Marco’s research interests lie at the intersection of empirical and theoretical ecology, with a focus on synthesizing ecological and evolutionary theory with empirical data through mathematical, statistical, and computational methods. His overarching research theme is cross-scale integration—scaling ecological processes from the microscopic level up to ecosystems, with an emphasis on how individual traits shape biodiversity and how these processes influence ecosystem dynamics and climate feedback.
Marco has conducted fieldwork in a variety of ecosystems, including the primeval forests of Poland and tropical rainforests in Malaysia and Panama. After earning his PhD in 2016, where he investigated mechanisms structuring tropical forest diversity across spatial, temporal, and organizational scales, he advanced his research during a postdoctoral position at Princeton University’s Department of Ecology and Evolutionary Biology. There, he further developed his expertise in biophysics, remote sensing, and mathematical ecology (2016-2021). In 2021, Marco joined the Institute of Environmental Sciences (CML) at Leiden University as an assistant professor. Here, he continues his work on understanding the rapidly evolving dynamics of global forests and their feedbacks on biodiversity and climate.
In recent years, Marco has expanded his research to address the critical challenge of chemical pollution, particularly focusing on pesticides. As the project leader of the Dutch Pesticide Atlas project - a national tool that provides a standardized scientifically validated dataset to serve as a “common truth” for societal debate - he contributes to fostering informed, data-driven discussions: “a communication tool that enables a conversation based on the same numbers.” His team’s work with the Dutch Pesticide Atlas supports cross-scale research on pesticide impacts, enabling public authorities, scientists, and society to make decisions rooted in a unified, transparent data foundation.
Marco is deeply committed to fostering a work environment that promotes curiosity, safety, inclusivity, and productivity. He believes in the power of diverse perspectives to inspire scientific discovery and strives to create a lab culture that encourages everyone to contribute to understanding the intricate workings of our beautiful blue planet. Read more at my website.


Marco has worked in a wide variety of forests, from the primeval forest in Poland, to tropical forests in Malaysia and Panama. He completed his PhD in 2016, working on the processes that structure diversity in tropical forests, and integrating these mechanisms across broader spatial, temporal, and organizational scales. He continued this line of research as a post-doctoral researcher at Princeton University’s department of Ecology and Evolutionary Biology, where he became interested in biophysics, remote sensing and mathematical ecology (2016 - 2021), In 2021, Marco joined the Institute of Environmental Sciences (CML) at Leiden University as an assistant professor. Here, he works to understand the rapidly changing dynamics in global forests, and their feedback on the biodiversity and climate of our planet.
Marco believes that one of the great joys in life is learning new things. This is why he strives to create a work environment that is not only stimulating and productive, but also safe, healthy, and inclusive for everyone. An environment in which everybody can be themselves and share in the fascination of learning about our beautiful blue planet.
Research topics
- Chemical Pollution and Biodiversity: Marco’s recent research focuses on the ecological impacts of chemical pollution on biodiversity. This research aims to bridge controlled experimental results with large-scale biodiversity trends, addressing an urgent need for science-based methods to predict and attribute the risks of pesticide at broader scales. Utilizing national pesticide monitoring data, biophysical models, his team is pioneering a cross-scale predictive framework to assess the biodiversity impacts of key pesticides.
- Forest Health and Climate Change Implications: A central concern in Marco’s research is understanding how quickly forests, particularly in tropical regions, are degrading under climate change. His work combines remote sensing, biophysics, and machine learning to explore how rapid structural changes impact forests' roles in the global carbon, water, and energy cycles, investigating the cascading effects on climate and biodiversity.
- Biodiversity and Ecosystem Stability: Marco’s research probes into the ecological mechanisms that sustain species diversity, focusing on the role pathogens and parasites play in maintaining coexistence among species. His work seeks to determine whether proposed coexistence mechanisms are evolutionarily stable, not only for hosts but also for the associated parasites. This line of research expands our understanding of biodiversity’s foundational elements and its role in ecosystem resilience.
- Optimizing Ecosystem Traits for Climate Solutions: Moving beyond traditional carbon-centric approaches, Marco combines physics-based models with species traits to explore bio-geoengineering solutions in natural, agricultural, and urban landscapes. This work aims to identify ecosystem traits that can mitigate climate change impacts while promoting biodiversity and ecosystem stability.
Assistant Professor
- Science
- Centrum voor Milieuwetenschappen Leiden
- CML/Environmental Biology
- Bruijning M., Metcalf C., Jessica E. & Visser M.D. (2024), Closing the gap in the Janzen–Connell hypothesis: what determines pathogen diversity?, Ecology Letters 27(1): e14316.
- Hülsmann L., Chisholm R.A., Comita L., Visser M.D., de Souza Leite M., Aguilar S., Anderson-Teixeira K.J., Bourg N.A., Brockelman W.Y., Bunyavejchewin S., Castano N., Chan-Yang C.H., Chuyong G.B., Clay K., Davies S.J., Duque A., Ediriweera S., Ewango C., Gilbert G.S., Holik J., Howe R.W., Hubbell S.P., Itoh A., Johnson D.J., Kenfack D., Král K., Larson A.J., Lutz J.A., Makana J.R., Malhi Y., McMahon S.M., McShea W.J., Mohamad M., Nasardin M., Nathalang A., Norden N., Oliveira A.A., Parmigiani R., Perez R., Philipps R.P., Pongpattananurak N., Sun I.F., Swanson M.E., Tan S., Thomas D., Thompson J., Uriarte M., Wolf A.T., Yao T.L., Zimmerman J.K., Zuleta D. & Hartig F. (2024), Latitudinal patterns in stabilizing density dependence of forest communities, Nature 627: 564–571.
- Vijver M.G., Visser M.D. & Zelfde M. van 't (19 December 2024), Ctgb-lijst vermeldt structureel normoverschrijdende stoffen. Nieuwe Oogst, Nieuws.
- Meiracker R. van, Wesdorp K., Zelfde M. van 't & Visser M.D. (2024), Landelijk meetnet gewasbeschermingsmiddelen land- en tuinbouw: jaarlijkse evaluatie resultaten van 2014 t/m 2023 no. 11210346-003-ZWS-0001. Utrecht: Deltares.
- Cheng K.H., Sun Z., Zhong W., Wang Z., Visser M.D., Liu S., Yan Z., Zhao Y., Zhang R., Zang J., Jin S. & Wu J. (2024), Enhancing wheat crop physiology monitoring through spectroscopic analysis of stomatal conductance dynamics, Remote Sensing of Environment 312: 114325.
- De Deurwaerder H.P.T., Detto M., Visser M.D., Schnitzer S. & Pacala S.W. (2024), Linking physiology, epidemiology, and demography: understanding how lianas outcompete trees in a changing world, Proceedings of the National Academy of Sciences 121(34): e2319487121.
- Liu S., Wang Z., Lin Z., Zhao Y., Yan Z., Zhang K., Visser M.D., Townsend P.A. & Wu J. (2024), Spectra-phenology integration for high-resolution, accurate, and scalable mapping of foliar functional traits using time-series Sentinel-2 data, Remote Sensing of Environment 305: 114082.
- Melina de Souza L., McMahon S.M., Prado P.I., Davies S.J., Oliveira A.A. de, De Deurwaerder H.P. , Aguilar S., Anderson-Teixiera K.J., Agila N., Bourg N.A., Brockelman W.Y., Castano N., Chang-Yang C.H., Chen Y.Y., Chuyong G., Clay K., Duque A., Ediriweera S., Ewango C.E.N., Gilbert G., Gunatilleke I.A.U.N., Gunatilleke C.V.S., Howe R., Huasco W.H., Itoh A., Johnson D.J., Kenfack D., Král K., Leong Y.T., Lutz J.A., Makana J.R., Malhi Y., McShea W.J., Mohamad M., Nasardin M., Nathalang A., Parker G., Parmigiani R., Pérez R., Philips R.P., Samonil P., Sun I., Sylvester T., Thomas D., Thompson J., Uriarte M., Wolf A., Zimmerman J., Zuleta D., Visser M.D. & Hülsmann L. (2024), Major axes of variation in tree demography across global forests, Ecography 2024(6): e07187.
- Rueda-Trujillo M.A., Veldhuis M., Bodegom P. van, Deurwaerder H.P.T. de & Visser M. (2024), Global increase of lianas in tropical forests, Global Change Biology 30(8): e17485.
- Visser M.D., Zelfde M. van 't, Hallman C. & Barmentlo S.H. (2023), Analyse aanwezigheid, normoverschrijdingen en toxische druk van bestrijdingsmiddelen in geselecteerde meetpunten binnen het Nederlands oppervlaktewater. Leiden: Centrum voor Milieuwetenschappen.
- Meiracker R. van den, Wesdorp K., Tamis W.L.M., Zelfde M. van 't & Visser M.D. (2023), Landelijk Meetnet Gewasbeschermingsmiddelen Land- en Tuinbouw : jaarlijkse evaluatie resultaten van 2014 t/m 2022 no. 11209246-004-BGS-0001. Utrecht: Deltares.
- Liu S., Yan Z., Wang Z., Serbin S., Visser M.D., Zeng Y., Ryu Y., Su Y., Guo Z., Song G., Wu Q., Zheng H., Cheng K.H., Dong J., Hau B.C.H., Zhao P., Yang X., Liu L., Rogers A. & Wu J. (2023), Mapping foliar photosynthetic capacity in sub-tropical and tropical forests with UAS-based imaging spectroscopy: scaling from leaf to canopy, Remote Sensing of Environment 293: 113612.
- Westra S.A., Mol R.R., Desjardins R.B., Visser M.D., Baele A.V.M.P.C. & Montfort D. van (2022), Results of a small terrestrial mammal survey in the remote Boe region of Guinea-Bissau, with discovery of two new shrew records for the country, African Journal of Ecology 60(4): 946-957.
- Meunier F., Visser M.D., Shiklomanov A., Dietze M.C., Guzmán Q.J.A., Sanchez-Azofeifa A., Deurwaerder H.P.T. de, Krishna Moorthy S.M., Schnitzer S.A., Marvin D.C., Longo M., Liu C., Broadbent E.N., Almeyda Zambrano A.M., Muller-Landau H.C.'Detto M. & Verbeeck H. Meunier Félicien Visser Marco D. Shiklomanov Alexey Dietze Michael C. Guzmán Q. J. Antonio Sanchez‐Azofeifa G. Arturo De Deurwaerder Hannes P. T. Krishna Moorthy Sruthi M. Schnitzer Stefan A. Marvin David C. Longo Marcos Liu Chang Broadbent Eben N. Almeyda Zambrano Angelica M. Muller‐Landau Helene C. Detto Matteo Verbeeck Hans (2022), Liana optical traits increase tropical forest albedo and reduce ecosystem productivity, Global Change Biology 28(1): 227-244.
- Buijs S, Meiracker R. van den, Tamis W.L.M., Zelfde M. van 't & Visser M.D. (2022), Landelijk Meetnet Gewasbeschermingsmiddelen Land- en Tuinbouw, Evaluatie resultaten 2021 no. 11208068-004-BGS-0001. Utrecht: Deltares.
- Schnitzer S.A., DeFilippis D.M., Visser D.M., Estrada-Villegas S., Rivera-Camana R., Bernal B., Peréz S., Valdéz A., Valdéz S., Auilar A., Dalling J.W., Broadbent E.N., Almeyda Zambrano A.M., Hubbell S.P. & Garcia-Leon M. (2021), Local canopy disturbance as an explanation for long‐term increases in liana abundance, Ecology Letters 24(12): 2635-2647.
- Visser M.D. et al. (2021), ForestGEO: understanding forest diversity and dynamics through a global observatory network, Biological Conservation 253: 108907.
- Deurwaerder H.P.T. de, Visser M.D., Meunier F., Detto M., Hervé-Fernandez P., Boeckx P. & Verbeeck H. (2021), Robust estimation of absorbing root surface distributions from xylem water isotope compositions with an inverse plant hydraulic model, Frontiers in Forests and Global Change 4: 689335.