Gina Marano Silviculture · forest ecology · modelling

Teaching

Teaching students to read a stand like a forester, decide what to do with it, and test that decision against a future that will not look like the past.

Foresters have always had to decide today what a stand will look like in eighty years. For most of the history of silviculture, experience was a good enough guide: the climate those trees would grow in resembled the one their predecessors had known. That is no longer true, and it changes what students need to learn.

My teaching sits on that seam. I start from traditional silviculture — stand structure, competition, tree selection, the forester’s eye in the field — and bring in dynamic models as one more instrument in the forester’s toolbox, not a replacement for it. Students leave able to do both: read a stand, and question what a model says about its future.

How I teach

See the stand

With the Stand Visualization System (SVS), inventory tables become three-dimensional stands. Students draw the same forest before and after an intervention and learn to read layering, crown space and gaps — before a single simulation runs.

Mark the trees

Marteloscope exercises put students in the forester's boots: which trees stay, which go, and why. Their selection decisions are then translated into explicit rules a model can follow.

Let time pass

The marked stand is grown decades ahead with a forest gap model, comparing growth, mortality, regeneration, timber, carbon and risk across silvicultural strategies and climates.

Argue with the model

When projections and field intuition disagree, that is the lesson. Students learn when to trust a model, when to challenge it, and how to explain the difference to a practitioner.

Three 3D renderings of the same simulated stand after 50 years: unthinned and dense, thinned from below with open space between larger trees, and thinned from above with many smaller trees filling the canopy
The same 0.25-ha stand fifty years on, left unthinned or thinned from below or from above (a quarter of the basal area removed at years 0 and 25). Simulated with an empirical stand simulator in the Quantitative Vegetation Dynamics lab and drawn with the Stand Visualization System.

Courses

2026 — present

Quantitative Vegetation Dynamics: Models from Tree to Globe MSc

ETH Zurich, D‑USYS · Lecturer · Autumn semester

From single trees measured in forest inventories to stand competition, landscape disturbances and global vegetation — taught from the forester's side of the table: what each kind of model can tell a manager about a real stand, and where it stops being useful.

2022 — 2023

Forest gap modelling laboratory MSc

Quantitative Vegetation Dynamics, ETH Zurich · Teaching assistant · 3-hour lab

Students designed their own stand-scale experiments with ForClim and interpreted the results in ecological and silvicultural terms.

2022 — 2023

Gebirgswaldökologie und Management MSc

ETH Zurich, D‑USYS · Laboratory and teaching material

A laboratory on mountain-forest dynamics and management, with a week of teaching-material preparation each year, together with Alexander Carrella and Prof. Harald Bugmann.

2018 — 2019

Best practices in forest operations to minimise erosion and soil compaction BSc

Guest lecture, Forest Pedology, University of Naples Federico II · Prof. Fabio Terribile

2018 — 2019

R for geospatial analyses MSc

Crash course, Geography and Soil Evaluation, University of Naples Federico II · five lessons

Outside the lecture hall

2021 — present

Public forest walks (Waldumgänge)

Benken ZH, with the district forester

Explaining silviculture and forest change to the people who walk in these forests every day.

2023 — 2024

ForClim-Marteloscope training

ETH Zurich · students and practitioners

Tree-marking exercises confronted with simulated stand development, for students and forest practitioners alike.

2016 — 2017

PRO.PRO.FOR. — seminar series and summer school

University of Padua · designed, funded and organised

Open seminars and a field school on silvicultural planning, forest operations, environmental assessment, monitoring and precision forestry, to bring students closer to the forestry profession.

Student support & mental health

Academic life can be hard, and it often pushes us to our limits and into dark places. Alongside teaching, I regularly support students and early-career researchers who are struggling — with the pressure of academic life, but also with bullying, difficult supervision, harassment and racism. I listen, offer advice and practical support, and help people find the offices and authorities that can help them further.

To do this well, I trained, and am still training, as part of a coaching group of the Foster. Lead. Promote. (FLP) programme at ETH Zurich, with coach Dr. Lille Springall. In these conversations I follow the principles of Nonviolent Communication, as described by Marshall B. Rosenberg in Nonviolent Communication: A Language of Life.

If you are experiencing problems too, please know that you are not alone. I also know some of these struggles from the inside. I grew up in the suburbs of a big city, in a family with no academic background, where nobody had been to high school, let alone university. I worked to pay for my studies, and I became a mother at the end of my PhD. As a young scientist and a parent, I can relate, understand, and offer free support and guidance.

There is a solution to every problem, and there are nice communities and villages you can join. Just write me an email and we can grab a coffee and chat!

Parents Network at WSL. I founded the Parents Network at WSL, which I now run together with Dr. Christian Temperli (Swiss National Forest Inventory). We meet once a month. If you are a parent at WSL, come and join our activities: sign up here.

Theses supervised

2024

Raphael Schmid BSc

BSc Environmental Sciences, ETH Zurich · Co-supervisor

Waldsukzession nach einem Waldbrand in den Schweizer Zentralalpen. Main supervisor: Prof. Dr. Harald Bugmann.

2021

Alessandro Aquino MSc

MSc Forest Sciences, University of Naples Federico II · Co-supervisor

Caratterizzazione dei suoli al limite del bosco: proprietà emergenti nelle treeline di Fagus sylvatica dell'Appennino Centro-Meridionale. Main supervisor: Prof. Fabio Terribile.

Theses supported

Students whose modelling work I helped set up, debug and interpret.

2024 — 2025

Livia Gysel MSc

MSc Environmental Sciences, ETH Zurich

Veränderungen der Struktur und Dynamik von Naturwaldreservaten unter Klimawandeleffekten. Main supervisor: Dr. Mathieu Levesque; with Prof. Dr. Harald Bugmann and Dr. Ulrike Hiltner.

2023

Francesca Eccher MSc

MSc Environmental Management of Mountain Areas, Free University of Bolzano

Forest stand modelling in drought-prone forests of South Tyrol. Main supervisor: Dr. Marco Mina, Eurac Research.

2023

Lara Wüthrich BSc

BSc Environmental Sciences, ETH Zurich

Modelling support. Main supervisor: Prof. Dr. Harald Bugmann.

2022 — 2023

Laurin Hillebrand MSc

MSc, University of Innsbruck

Assessing the protective function of South Tyrolean forests under future climate change. Main supervisor: Dr. Marco Mina, Eurac Research.

2022

Samuel Zweifel BSc

BSc Environmental Sciences, ETH Zurich

Analyses of tree regeneration after windthrow in a central Swiss forest: testing a forest succession model's abilities. Main supervisor: Dr. Ulrike Hiltner; co-supervisor: Dr. Mathieu Levesque.

Prospective students. If you are interested in a thesis on silviculture under climate change, drought and tree mortality, or management scenarios for Swiss forests, feel free to get in touch.