Differences in adult survival drive divergent demographic responses to warming on the Tibetan Plateau

A central question in biodiversity conservation is whether species will maintain viable populations under climate warming. Assessing species viability under climate warming requires demographic studies integrating vital rate responses to long-term warming throughout species’ life cycle. However, studies of this nature are rare. Our Integral Projection Models (IPMs) parameterised with demographic data show differing responses of two functionally similar co-occurring species, Elymus nutans Griseb. and Helictotrichon tibeticum (Roshev.) Holub, to 10 years of in situ active warming by 2℃. Our IPMs estimated that the life expectancy is higher in H. tibeticum (6.7 years) than that in E. nutans (4.5 years) under ambient conditions, and the difference is larger under warmed conditions. We found that while warming decreased individual-level growth in both species, H. tibeticum, which has a longer life expectancy, compensated with increased survival, and thereby increased projected population-lev..., We examine how climate warming affects the population dynamics of two dominant plant species, Elymus nutans Griseb. and Helictotrichon tibeticum (Roshev.) Holub, on the alpine grassland of the Tibetan Plateau. Our study sites have received a 2℃ active warming starting in 2011. To quantify the responses of both species to warming, we parameterised Integral Projection Models with demographic data collected in 2019 and 2020., , # Differences in adult survival drive divergent demographic responses to warming on the Tibetan Plateau

[https://doi.org/10.5061/dryad.612jm64b8](https://doi.org/10.5061/dryad.612jm64b8)

These file provide the demographic parameters for vital rates (params.Rdata and domains.Rdata) and R script (Population dynamics under warming_script.R and Kernel.R) to run the analyses in the manuscript \"Differences in adult survival drive divergent demographic responses to warming on the Tibetan Plateau\".

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## Description of the data and file structure

### Demographic parameters are contained in the `PARAMETERS FOR VITAL RATES/` directory.

This dataset includes the estimated parameters for each vital rate and domains of plant heights for *Elymus nutans* and *Helictotrichon tibeticum* under ambient and warming treatments: (i) The estimated parameters consist of the intercept and slope of the linear regression for each vital rate, such as survival, growth, probability of reproduction, number of ...