TY - UNPB
T1 - Widespread reductions in body size are paired with stable assemblage biomass
AU - Martins, Inês S.
AU - Schrodt, Franziska
AU - Blowes, Shane A.
AU - Bates, Amanda E.
AU - Bjorkman, Anne D.
AU - Brambilla, Viviana
AU - Carvajal-Quintero, Juan
AU - Chow, Cher F. Y.
AU - Daskalova, Gergana N.
AU - Edwards, Kyle
AU - Eisenhauer, Nico
AU - Field, Richard
AU - Fontrodona-Eslava, Ada
AU - Henn, Jonathan J.
AU - van Klink, Roel
AU - Madin, Joshua S.
AU - Magurran, Anne E.
AU - McWilliam, Michael
AU - Moyes, Faye
AU - Pugh, Brittany
AU - Sagouis, Alban
AU - Trindade-Santos, Isaac
AU - McGill, Brian
AU - Chase, Jonathan M.
AU - Dornelas , Maria
N1 - Funding: Marie Sklodowska-Curie Actions Individual Fellowship (MSCA-IF), European Union's Horizon 2020, grant agreement no. 894644. (I.S.M.). German Research Foundation grant to the German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig (DFG FZT-118, 20254881) (S.A.B, J.M.C, N.E., R.vK and A.S). German Research Foundation grant to the Gottfried Wilhelm Leibniz Prize (Ei 862/29-1) (N.E.). CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior -Coordination for the Improvement of Higher Education Personnel), process number: #88881.129579/2016–01 (Finance Code 001) (I.T.S.). Leverhulme Trust (RPG-2019-402) (A.E.M, M.D.). Leverhulme Trust through the Leverhulme Centre for Anthropocene Biodiversity (RC-2018- 021) (M.D.). European Union (ERC coralINT, 101044975) (M.D.). Schmidt Science Fellowship (G.N.D.). Fisheries Society of the British Isles PhD Studentship (A.F-.E). Knut och Alice Wallenberg Foundation (A.D.B). The authors also gratefully acknowledge funding of iDiv via the German Research Foundation (DFG FZT 118, 202548816), specifically funding of the sTeTra working group through sDiv, the Synthesis Centre of iDiv.
PY - 2023/2/3
Y1 - 2023/2/3
N2 - Biotic responses to global change include directional shifts in organismal traits. Body size, an integrative trait that determines demographic rates and ecosystem functions, is often thought to be shrinking in the Anthropocene. Here, we assess the prevalence of body size change in six taxon groups across 5,032 assemblage time-series spanning 1960-2020. Using the Price equation to partition this change into within-species body size versus compositional changes, we detect prevailing decreases in body size through time. Change in assemblage composition contributes more to body size changes than within-species trends, but both components show substantial variation in magnitude and direction. The biomass of assemblages remains remarkably stable as decreases in body size trade-off with increases in abundance.
AB - Biotic responses to global change include directional shifts in organismal traits. Body size, an integrative trait that determines demographic rates and ecosystem functions, is often thought to be shrinking in the Anthropocene. Here, we assess the prevalence of body size change in six taxon groups across 5,032 assemblage time-series spanning 1960-2020. Using the Price equation to partition this change into within-species body size versus compositional changes, we detect prevailing decreases in body size through time. Change in assemblage composition contributes more to body size changes than within-species trends, but both components show substantial variation in magnitude and direction. The biomass of assemblages remains remarkably stable as decreases in body size trade-off with increases in abundance.
U2 - 10.1101/2023.02.03.526822
DO - 10.1101/2023.02.03.526822
M3 - Preprint
BT - Widespread reductions in body size are paired with stable assemblage biomass
PB - bioRxiv
ER -