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Etienne Lalechère

Postdoctoral Fellow - Centre for Ecological and Evolutionary Synthesis

Email etienne.lalechere@ibv.uio.no

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Visiting address Blindernveien 31 0371 Oslo

Postal address Postboks 1066 Blindern 0316 Oslo

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Tags: Biodiversity, Modelling, Climate change, Conservation biology, Remote sensing

Publications

Lalechère, Etienne; Lenoir, Jonathan; Marrec, Ronan; Essl, Franz; Kühn, Ingolf & Ergon, Torbjørn (2025). Assessing biodiversity trends in a quasi-permanent non-equilibrium state. Trends in Ecology & Evolution. ISSN 0169-5347. 40(10), p. 949–959. doi: 10.1016/j.tree.2025.07.003. Full text in Research Archive Show summary
The ‘equilibrium assumption’ underlying biodiversity trends assessments in response to environmental changes is rarely challenged, the traditional assumption being that biodiversity is in an equilibrium state with its contemporary drivers. Existing non-equilibrium biodiversity frameworks still rely on the assumption that biodiversity is, at a given moment in time, in an equilibrium state with its contemporary drivers. In this opinion article we consider multiple trajectories of changes due to long-term disturbances that push biodiversity into a quasi-permanent non-equilibrium state. We propose a conceptual framework based on the use of temporal influence functions that can be integrated into a wide range of ecological models. The complete paradigm shift we provide can hindcast past, and project future, non-equilibrium biodiversity trends.
Lalechère, Etienne; Marrec, Ronan & Lenoir, Jonathan (2025). A Non-Equilibrium Species Distribution Model Reveals Unprecedented Depth of Time Lag Responses to Past Environmental Change Trajectories. Ecology Letters. ISSN 1461-023X. 28(1). doi: 10.1111/ele.70040. Full text in Research Archive

Lalechère, Etienne; Marrec, Ronan & Lenoir, Jonathan (2025). Corrigendum to ‘A Non‐Equilibrium Species Distribution Model Reveals Unprecedented Depth of Time Lag Responses to Past Environmental Change Trajectories’. Ecology Letters. ISSN 1461-023X. 28(11). doi: 10.1111/ele.70239. Full text in Research Archive
Lalechère, Etienne; Marrec, Ronan & Lenoir, Jonathan (2025). Correction to “A Non‐Equilibrium Species Distribution Model Reveals Unprecedented Depth of Time Lag Responses to Past Environmental Change Trajectories”. Ecology Letters. ISSN 1461-023X. 28(4). doi: 10.1111/ele.70123. Full text in Research Archive

Published Oct. 28, 2024 4:01 PM - Last modified Sep. 3, 2025 10:14 AM