Global arthropod beta-diversity is spatially and temporally structured by latitude
2024
Mathew Seymour | Tomas Roslin | Jeremy R. deWaard | Kate H. J. Perez | Michelle L. D’Souza | Sujeevan Ratnasingham | Muhammad Ashfaq | Valerie Levesque-Beaudin | Gergin A. Blagoev | Belén Bukowski | Peter Cale | Denise Crosbie | Thibaud Decaëns | Stephanie L. deWaard | Torbjørn Ekrem | Hosam O. El-Ansary | Fidèle Evouna Ondo | David Fraser | Matthias F. Geiger | Mehrdad Hajibabaei | Winnie Hallwachs | Priscila E. Hanisch | Axel Hausmann | Mark Heath | Ian D. Hogg | Daniel H. Janzen | Margaret Kinnaird | Joshua R. Kohn | Maxim Larrivée | David C. Lees | Virginia León-Règagnon | Michael Liddell | Darío A. Lijtmaer | Tatsiana Lipinskaya | Sean A. Locke | Ramya Manjunath | Dino J. Martins | Marlúcia B. Martins | Santosh Mazumdar | Jaclyn T. A. McKeown | Kristina Anderson-Teixeria | Scott E. Miller | Megan A. Milton | Renee Miskie | Jérôme Morinière | Marko Mutanen | Suresh Naik | Becky Nichols | Felipe A. Noguera | Vojtech Novotny | Lyubomir Penev | Mikko Pentinsaari | Jenna Quinn | Leah Ramsay | Regina Rochefort | Stefan Schmidt | M. Alex Smith | Crystal N. Sobel | Panu Somervuo | Jayme E. Sones | Hermann S. Staude | Brianne St. Jaques | Elisabeth Stur | Angela C. Telfer | Pablo L. Tubaro | Tim J. Wardlaw | Robyn Worcester | Zhaofu Yang | Monica R. Young | Tyler Zemlak | Evgeny V. Zakharov | Bradley Zlotnick | Otso Ovaskainen | Paul D. N. Hebert
Abstract Global biodiversity gradients are generally expected to reflect greater species replacement closer to the equator. However, empirical validation of global biodiversity gradients largely relies on vertebrates, plants, and other less diverse taxa. Here we assess the temporal and spatial dynamics of global arthropod biodiversity dynamics using a beta-diversity framework. Sampling includes 129 sampling sites whereby malaise traps are deployed to monitor temporal changes in arthropod communities. Overall, we encountered more than 150,000 unique barcode index numbers (BINs) (i.e. species proxies). We assess between site differences in community diversity using beta-diversity and the partitioned components of species replacement and richness difference. Global total beta-diversity (dissimilarity) increases with decreasing latitude, greater spatial distance and greater temporal distance. Species replacement and richness difference patterns vary across biogeographic regions. Our findings support long-standing, general expectations of global biodiversity patterns. However, we also show that the underlying processes driving patterns may be regionally linked.
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