RT Journal Article T1 Thermophilization and reshuffling of montane leaf beetle communities over a two decade period T2 Thermophilization and reshuffling of communities A1 Rodríguez Pacheco, Alba A1 Formoso Freire, Victoria A1 Lorenzo Carballa, M. Olalla A1 Baselga Fraga, Andrés A1 Gómez Rodríguez, Carola K1 Coleoptera K1 Community homogenization K1 Community reshuffling K1 Elevational shift K1 Insects K1 Temporal beta diversity K1 Temporal turnover K1 Thermophilization K1 Upward range shift AB Given the sensitivity of mountain biodiversity to human pressure, it is essential to quantify changes inmontane biological communities and contrast them with expectations based on potential drivers of change. Thisneed is particularly pressing for biological groups representing important but little‐studied fractions ofbiodiversity, such as insects. We analyze the temporal changes (between 1998 and 2015) of leaf beetlecommunities in an altitudinal gradient in the Sierra de Ancares (NW Spain). Our results show temporal changes inthe composition of local communities, with a tendency to assemblage thermophilization, as well as ahomogenization of the spatial turnover pattern, mostly driven by an increased similarity between communities atthe lower and intermediate altitudes. These temporal changes in community composition and in the spatialstructure of biodiversity were associated with upward shifts of the upper altitudinal limit of warm‐adaptedspecies and with downward shifts of the lower altitudinal limit of cold‐adapted species. While this upward shift isconsistent with expectations of climate change effects, the observed downward shift suggests a land‐use changeeffect. Our results point to the joint effect of multiple factors (climate and land‐use change) behind temporalchanges of these leaf beetle communities, which result in compositional reorganization and biotichomogenization, rather than a mere coherent displacement toward higher altitudes. More generally, we showthat understanding temporal change of biodiversity requires assessing multiple community‐level metrics (e.g.,variation in assemblage composition and/or changes in spatial turnover) for the detection of tendencies amongthe species‐specific signals (e.g., altitudinal range shifts) PB Wiley SN 1759-6831 YR 2024 FD 2024 LK https://hdl.handle.net/10347/41273 UL https://hdl.handle.net/10347/41273 LA eng NO Rodríguez-Pacheco, A., Formoso-Freire, V., Olalla Lorenzo-Carballa, M., Baselga, A., & Gómez-Rodríguez, C. (2024). Thermophilization and reshuffling of montane leaf beetle communities over a two-decade period. Journal of Systematics and Evolution, 62(2), 321-331. https://doi.org/10.1111/jse.13054 NO This is the peer reviewed version of the following article: Rodríguez-Pacheco, A., Formoso-Freire, V., Olalla Lorenzo-Carballa, M., Baselga, A., & Gómez-Rodríguez, C. (2024). Thermophilization and reshuffling of montane leaf beetle communities over a two-decade period. Journal of Systematics and Evolution, 62(2), 321-331, which has been published in final form at https://doi.org/10.1111/jse.13054. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. NO Spanish Ministry of Scienceand Innovation (PID2020‐116587GB‐I00) NO FPI scholarship (Ref.: PRE2021‐098920) DS Minerva RD 19 abr 2026