biostudies-literatureBokhorst SNatural Environment Research Council816-828https://www.ebi.ac.uk/biostudies/studies/S-EPMC9299205biostudies-literatureUnknown28(3)Human activity and climate change are increasing the spread of species across the planet, threatening biodiversity and ecosystem functions. Invasion engineers, such as birds, facilitate plant growth through manuring of soil, while native vegetation influences plant germination by creating suitable microhabitats which are especially valuable in cold and dry polar regions. Here we tested how penguin-derived nitrogen, several common Antarctic moss species and warming affect seed germination and growth of the non-native grass Agrostis capillaris under laboratory conditions. Experimental settings included a simulation of contemporary season-specific Antarctic light and temperature (2°C) conditions and a +5°C warming scenario. Mosses (Andreaea depressinervis, A. regularis, Sanionia uncinata and Global change biologyTemperature impact on the influence of penguin-derived nutrients and mosses on non-native grass in a simulated polar ecosystem.PMC9299205bas0100036Aerts RBokhorst Svan Logtestijn RConvey PfalseTemperature impact on the influence of penguin-derived nutrients and mosses on non-native grass in a simulated polar ecosystem.Human activity and climate change are increasing the spread of species across the planet, threatening biodiversity and ecosystem functions. Invasion engineers, such as birds, facilitate plant growth through manuring of soil, while native vegetation influences plant germination by creating suitable microhabitats which are especially valuable in cold and dry polar regions. Here we tested how penguin-derived nitrogen, several common Antarctic moss species and warming affect seed germination and growth of the non-native grass Agrostis capillaris under laboratory conditions. Experimental settings included a simulation of contemporary season-specific Antarctic light and temperature (2°C) conditions and a +5°C warming scenario. Mosses (Andreaea depressinervis, A. regularis, Sanionia uncinata and 2022-01-01T00:00:00Z2022 Feb2025-04-04T22:38:50.398Z2022-08-04T22:32:03.446ZS-EPMC92992053474754810.1111/gcb.15979