Taxonomic and Trophic Groups Mediate Latitudinal Variation in Saproxylic Beetle Species Richness and Body Size Across Western Palaearctic Oak Forests
2025
Franzén, Mikael | Jansson, Nicklas | Avcil, Mucahit | Brin, Antoine | Brustel, Hervé | Budka, Julia | Buse, Joern | Carpaneto, Giuseppe | Chiari, S. | Cizek, Lukas | Coskun, Mehmet | Dagley, Jack | Hammond, Peter Michael | Micó, E. | Öncul Abacigil, T. | Pavlicek, Tomas | Schlaghamersky, Jiri | Sebek, P. | Sverdrup‐thygeson, A | Vural Varli, S. | Westerberg, L. | Wilde, I. | Zauli, A. | Milberg, Per | Linnaeus University | Linköping University (LIU) | Suleyman Demirel University ; Suleyman Demirel University | Dynamiques et écologie des paysages agriforestiers (DYNAFOR) ; École nationale supérieure agronomique de Toulouse (ENSAT) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Ecole d'Ingénieurs de Purpan (INP - PURPAN) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Ecole d'Ingénieurs de Purpan (INP - PURPAN) ; Institut National Polytechnique (Toulouse) (Toulouse INP) ; Université de Toulouse (UT)-Université de Toulouse (UT) | Masaryk University [Brno] = Masarykova univerzita [Brno] = Université Masaryk [Brno] (MU / MUNI) | Research and Species Protection | Università degli Studi di Roma Tor Vergata [Roma, Italia] = University of Rome Tor Vergata [Rome, Italy] = Université de Rome Tor Vergata [Rome, Italie] | Institute of Entomology [České Budějovice] (BIOLOGY CENTRE CAS) ; Biology Centre of the Czech Academy of Sciences (BIOLOGY CENTRE CAS) ; Czech Academy of Sciences [Prague] (CAS)-Czech Academy of Sciences [Prague] (CAS) | Adıyaman University = Adıyaman Üniversitesi (ADYU) | Essex Wildlife Trust | The Natural History Museum [London] (NHM) | Centro Iberoamericano de la Biodiversidad (CIBIO) ; Universidad de Alicante | Balıkesir University | Ǧāmiʿat͏̈ Hayfā = University of Haifa | Norwegian University of Life Sciences (NMBU) | Balikesir University, Faculty of Art and Science | Nottinghamshire Wildelife Trust
International audience
اظهر المزيد [+] اقل [-]إنجليزي. We examined latitudinal gradients in species richness and body size of saproxylic beetles across 28 veteran oak forest sites spanning from Israel to Norway. Focusing on 425 species from 11 taxonomic families and five trophic groups, we tested three hypotheses to elucidate: (i) family-specific richness responses to latitude, (ii) trophic mediation of richness patterns, (iii) whether body size follows Bergmann-like clines. We found significant family-level variations in richness-latitude relationships. These non-uniform patterns highlight the importance of taxonomic resolution in capturing macroecological diversity gradients. Body size analyses revealed significant latitude associations, indicating that both phylogenetic constraints and trophic group modulate latitudinal size patterns among saproxylic beetles. Taken together, our findings emphasize that macroecological patterns in saproxylic beetles are shaped by a synthesis of phylogenetic history and functional traits. Conservation strategies should, therefore, account for family-level and trophic-group heterogeneity, particularly as climate warming and shifting resource distributions may differentially affect lineages with distinct thermoregulatory and life-history constraints. These results underscore the need for taxon-specific approaches when predicting and managing biodiversity in changing oak forest ecosystems. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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تم تزويد هذا السجل من قبل Institut national de la recherche agronomique