@article{fdi:010093470, title = {{N}on-additive effects on plant mixtures flammability in a tropical mountain ecosystem}, author = {{R}oland, {H}. and {M}atos, {I}. {S}. and {R}osado, {B}. {H}. {P}. and {O}liveras {M}enor, {I}mma}, editor = {}, language = {{ENG}}, abstract = {{B}ackground {C}onsumability, a component of flammability, describes how well plants burn and may be influenced by species traits and climate change. {H}owever, knowledge gaps remain regarding how species mixtures interact and whether non-additive effects are mediated by functional traits and diversity.{A}ims {T}his study examined the consumability of species mixtures in {B}razil's tropical montane grasslands (campos de altitude), focusing on traits and species interactions.{M}ethods {L}aboratory tests measured remaining biomass (a proxy for consumability) in monospecific and three-species mixtures for seven species. {T}raits like specific leaf area ({SLA}), leaf dry matter content ({LDMC}), fuel moisture at ignition ({FMC}ig) and maximum combustion rate ({MCR}) were assessed, along with functional diversity, to understand their influence on consumability.{R}esults {C}onsumability in species mixtures differed from predictions based on individual species values, indicating non-additive effects. {L}eptostelma maximum, {P}leroma hospita and {C}husquea pinifolia, despite low or medium individual consumability, contributed most to mixture consumability. {H}igher {SLA} reduced consumability, whereas higher {MCR}, {LDMC} and functional index {FR}ich increased it.{C}onclusions {O}ur results suggest that low-consumability species like {L}. maximum may reduce fire severity, offering opportunities for fire management in the campos de altitude.{I}mplications {T}hese findings highlight the importance of considering species interactions in mixtures and identifying traits that shape plant community flammability.}, keywords = {{B}razil, campos de altitude ; climate change ; consumability ; ecosystem ; process ; fire management ; fire regimes ; fire severity ; species ; interactions ; trait-based ecology ; {BRESIL}}, booktitle = {}, journal = {{I}nternational {J}ournal of {W}ildland {F}ire}, volume = {34}, numero = {5}, pages = {{WF}24168 [12 p.]}, ISSN = {1049-8001}, year = {2025}, DOI = {10.1071/wf24168}, URL = {https://www.documentation.ird.fr/hor/fdi:010093470}, }