Can DEB models infer metabolic differences between intertidal and subtidal morphotypes of the Antarctic limpet Nacella concinna (Strebel, 1908)?

• Published in: Ecological Modelling
• Main Authors: Guillaumot, Charlène, Saucède, Thomas, Morley, Simon A., Augustine, Starrlight, Danis, Bruno, Kooijman, Sebastiaan
• Other Authors: Laboratoire de Biologie Marine, Université libre de Bruxelles (ULB), Biogéosciences UMR 6282 Dijon (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), British Antarctic Survey (BAS), Natural Environment Research Council (NERC), Akvaplan-Niva Tromsø, Norwegian Institute for Water Research (NIVA), Department of Theoretical Biology Amsterdam, Faculty of Earth and Life Sciences Amsterdam (FALW), Vrije Universiteit Amsterdam Amsterdam (VU)-Vrije Universiteit Amsterdam Amsterdam (VU), Work supported by a “Fonds pour la formation à la Recherche dans l'Industrie et l'Agriculture” (FRIA) and “Bourse fondation de la mer” grants and by Natural Environment Research Council core funding to the British Antarctic Survey.
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2020
• Subjects: ecological modelling; Southern Ocean; marine benthic species; model relevance; model accuracy; geo; envir; Antarctic; Nacella; The Antarctic; Antarc*
• Online Access: https://doi.org/10.1016/j.ecolmodel.2020.109088; https://hal.archives-ouvertes.fr/hal-02733236

International audience Studying the influence of changing environmental conditions on Antarctic marine benthic invertebrates is strongly constrained by limited access to the region, which poses difficulties to performing long-term experimental studies. Ecological modelling has been increasingly used as a potential alternative to assess the impact of such changes on species distribution or physiological performance.Among ecological models, the Dynamic Energy Budget (DEB) approach represents each individual through four energetic compartments (i.e. reserve, structure, maturation and reproduction) from which energy is allocated in contrasting proportions according to different life stages and to two forcing environmental factors (food resources and temperature).In this study, the example of an abundant coastal limpet, Nacella concinna (Strebel 1908), was studied. The species is known to have intertidal and subtidal morphotypes, genetically similar but physiologically and morphologically contrasting.The objectives of this paper are (1) to evaluate the potential of the DEB approach, and assess whether a DEB model can be separately built for the intertidal and subtidal morphotypes, based on a field experiment and data from literature and (2) to analyse whether models are contrasting enough to reflect the known physiological and morphological differences between the morphotypes.We found only minor differences in temperature-corrected parameter values between both populations, meaning that the observed differences can be only explained by differences in environmental conditions (i.e. DEB considered variables, food resources and temperature, but also other variables not considered by DEB). Despite the known morphological difference between the populations, the difference in shape coefficients was small.This study shows that even with the amount of data so far available in the literature, DEB models can already be applied to some Southern Ocean case studies, but, more data are required to accurately model the ...