Dr. Thibault Lachat

Fonction

chercheur invité

Entomologie forestière

Santé des forêts et interactions biotiques

Contact

thibault.lachat(at)wslto make life hard for spam bots.ch

+41 44 739 23 09+41 44 739 23 09

Institut fédéral de recherches sur la forêt, la neige et le paysage WSL
Zürcherstrasse 111
8903 Birmensdorf

Site

Birmensdorf Bi HL D 39

Follow me on ResearchGate:

https://www.researchgate.net/profile/Thibault_Lachat

Objectives and interests

As a forest ecologist, I am interested in the impacts of forest management and upcoming drivers (e.g. energy wood harvesting, neobiota) on forest biodiversity. I am particularly dedicated to insects dependent on dead wood and old growth trees, and to the functions of this insect group in forest ecosystems. With more than 10 years of work experience at the interface between research, policy and managers, I am seeking to develop research projects connecting forest management and biodiversity conservation. My main objectives are to better understand patterns in forest biodiversity from local to continental scale and to provide scientific baselines to integrate biodiversity conservation into forest management.

Education
2013─2015	Diploma of Advanced Studies in Applied Statistics (DAS), ETH Zurich
2000─2004	PhD in zoology at the University of Basel, NLU Biogeography Thesis title: The impact of forest management on saproxylic beetles and other arthropods in a semi-deciduous forest in Southern Benin
1994─1999	Master in environmental sciences, ETH Zurich Master thesis title: Mega-herbivores as ecosystem engineers in Switzerland over the last 250’000 years.

Work experiences
Since 2016	Professor for forest ecology, Bern University of Applied Sciences BFH, School of Agricultural, Forest and Food Sciences HAFL Visiting scientist, WSL
2013 - 2016	Research associate, WSL Birmensdorf, 90%
2007─2013	Research associate, WSL Birmensdorf, ca. 50% Project leader (Science-Policy Interface), Swiss Biodiversity Forum, ca. 50%
2005─2007	Research associate (Consulting FOEN & Cantons), ETH Lausanne, 100%
2000─2004	Research associate (PhD), University of Basel
2000	Research associate (Consulting Romandie), Swiss Landscape Foundation, Bern
1997	Trainee in Burigi game Reserve, Tanzania

FURTHER INFORMATION

Projects

AMORE II: Artenmonitoring von Käfern und Pilzen in Fichten- und Tannen-Fichten-Naturwaldreservaten

In diesem Projekt wird ein Arteninventar von xylobionten Käfern und Pilzen in Fichten- bzw. Tannen-Fichten-Naturwaldreservaten im Vergleich zu bewirtschafteten Beständen durchgeführt und es werden Steuergrössen der Diversität identifiziert.

Biomass decomposition of Douglas fir

The influence of the Douglas fir on ecological processes in the forest has not yet been sufficiently studied. The aim of the cooperation project (HAFL, WSL, University of Göttingen) is to create the scientific basis for an evaluation of Douglas fir cultivation with regard to biomass degradation and functional biodiversity.

Reconnaître les dendro-microhabitats: visite virtuelle immersive d'une forêt

Les dendro-microhabitats sont importants pour la biodiversité en forêt. Ce projet élabore un nouvel outil destiné aux gestionnaires forestiers, afin de les aider à identifier les dendro-microhabitats et connaître leurs rôles écologiques.

Saproxylic beetles in forest reserves

Deadwood is an essential habitat for many organisms. We investigate the saproxylic (deadwood-inhabiting) beetles and fungi in beech forest reserves and comparable managed forests.

Primeval forest structures and biodiversity: A Swiss-Ukrainian research cooperation

The primeval forests of the Carpathians, which are similar to many forests in Switzerland with regards to tree species composition and growth conditions, are therefore of high interest to WSL as research and reference objects.

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Publications WSL

Scientific publication article peer reviewed

Larrieu, L.; Courbaud, B.; Drénou, C.; Goulard, M.; Bütler, R.; Kozák, D.; Kraus, D.; Krumm, F.; Lachat, T.; Müller, J.; Paillet, Y.; Schuck, A.; Stillhard, J.; Svoboda, M.; Vandekerkhove, K., 2022: Key factors determining the presence of Tree-related Microhabitats: a synthesis of potential factors at site, stand and tree scales, with perspectives for further research. Forest Ecology and Management, 515: 120235 (12 pp.). doi: 10.1016/j.foreco.2022.120235

Courbaud, B.; Larrieu, L.; Kozak, D.; Kraus, D.; Lachat, T.; Ladet, S.; Müller, J.; Paillet, Y.; Sagheb‐Talebi, K.; Schuck, A.; Stillhard, J.; Svoboda, M.; Zudin, S., 2022: Factors influencing the rate of formation of tree‐related microhabitats and implications for biodiversity conservation and forest management. Journal of Applied Ecology, 59, 2: 492-503. doi: 10.1111/1365-2664.14068

Seibold, S.; Rammer, W.; Hothorn, T.; Seidl, R.; Ulyshen, M.D.; Lorz, J.; Cadotte, M.W.; Lindenmayer, D.B.; Adhikari, Y.P.; Aragón, R.; Gossner, M.M.; Lachat, T.; Müller, J., 2021: The contribution of insects to global forest deadwood decomposition. Nature, 597, 7874: 77-81. doi: 10.1038/s41586-021-03740-8

Larrieu, L.; Cabanettes, A.; Courbaud, B.; Goulard, M.; Heintz, W.; Kozák, D.; Kraus, D.; Lachat, T.; Ladet, S.; Müller, J.; Paillet, Y.; Schuck, A.; Stillhard, J.; Svoboda, M., 2021: Co-occurrence patterns of tree-related microhabitats: a method to simplify routine monitoring. Ecological Indicators, 127: 107757 (10 pp.). doi: 10.1016/j.ecolind.2021.107757

Gosselin, F.; Génot, J.C.; Lachat, T., 2021: Long time forest management and naturalness: definitions and associated metrics. Revue Forestiere Francaise, 73, 2-3: 115-136. doi: 10.20870/revforfr.2021.5464

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Further scientific publications

Guida da campo ai dendromicrohabitat. Descrizione e soglie dimensionali per il loro inventario

Questa guida da campo supplementare descrive i 47 tipi di microhabitat degli alberi, divisi in 15 gruppi e 7 forme. La guida da campo è un supplemento alla pubblicazione "Conoscere, proteggere e promuovere gli alberi habitat".

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Widmer, I.; Mühlethaler, R.; Baur, B.; Gonseth, Y.; Guntern, J.; Klaus, G.; Knop, E.; Lachat, T.; Moretti, M.; Pauli, D.; Pellissier, L.; Sattler, T.; Altermatt, F., 2021: Diversité des insectes en Suisse. Importance, tendances, actions possibles. Swiss Academies reports. 108 p. doi: 10.5281/zenodo.5144800

Widmer, I.; Mühlethaler, R.; Baur, B.; Gonseth, Y.; Guntern, J.; Klaus, G.; Knop, E.; Lachat, T.; Moretti, M.; Pauli, D.; Pellissier, L.; Sattler, T.; Altermatt, F., 2021: Insektenvielfalt in der Schweiz. Bedeutung, Trends, Handlungsoptionen. Swiss Academies reports. 108 p. doi: 10.5281/zenodo.5144739

Lachat, T.; Martin, O.Y., 2021: Five years of Alpine Entomology, the international journal on mountain insects. Alpine Entomology, 5: 123-124. doi: 10.3897/ALPENTO.5.78033

Bühler, U.; Lachat, T.; Bollmann, K., 2021: Aktive Massnahmen für die Biodiversität im Wald. Mesures actives pour la biodiversité en forêt. Schweizerische Zeitschrift für Forstwesen, 172, 6: 342-343. doi: 10.3188/szf.2021.0342

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Magazine article and brochures

Conoscere, proteggere e promuovere gli alberi habitat

Gli alberi habitat sono una componente chiave della biodiversità forestale. Un gruppo di professionisti europei ha elaborato un catalogo degli habitat che possono essere identificati sugli alberi e risultano imprescindibili per migliaia di organismi specializzati.

Notizie per la pratica 64

2022

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Totholz im Wald. Entstehung, Bedeutung und Förderung

Zweite überarbeitete Auflage: Totholz gehört zum natürlichen Waldzyklus und ist die Lebensgrundlage für zahlreiche Arten. Gezielte Massnahmen sind nötig, um anspruchsvolle Arten, die auf viel Totholz in einer bestimmten Qualität angewiesen sind, zu fördern.

Merkblatt für die Praxis 52

2019

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Bois mort en forêt. Formation, importance et conservation

Deuxième édition révisée: Le bois mort fait partie du cycle forestier naturel. Même si son volume augmente depuis quelques décennies dans la forêt suisse, les objectifs en matière de conservation ne sont pas encore atteints.

Notice pour le praticien 52

2019

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