TY - JOUR AU - Casanova-Katny, A. AU - Torres-Mellado, G. A. AU - Eppley, S. M. PY - 2016 DA - 2016/09/13 TI - Reproductive output of mosses under experimental warming on Fildes Peninsula, King George Island, maritime Antarctica JO - Revista Chilena de Historia Natural SP - 13 VL - 89 IS - 1 AB - Mosses dominate much of the vegetation in the Antarctic, but the effect of climatic change on moss growth and sexual reproduction has scarcely been studied. In Antarctica, mosses infrequently produce sporophytes; whether this is due to physiological limitation or an adaptive response is unknown. We studied the effect of experimental warming (with Open Top Chambers, OTCs) on sporophyte production on Fildes Peninsula, King George Island for four moss species (Bartramia patens, Hennediella antarctica, Polytrichastrum alpinum, and Sanionia georgicouncinata). To determine whether reducing cold stress increases sexual reproduction as would be predicted if sex is being constrained due to physiological limitations, we counted sporophytes for these four moss species in OTC and control plots during two years. Also, we measured sporophyte size for a smaller sample of sporophytes of two species, B. patens and H. antarctica, in the OTC and control plots. SN - 0717-6317 UR - https://doi.org/10.1186/s40693-016-0061-y DO - 10.1186/s40693-016-0061-y ID - Casanova-Katny2016 ER -