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\begin{document}

\title{Current and past climate co-shape community-level plant species richness
in the Western Siberian Arctic}



\author[1]{Zemlianskii Vitalii}%
\author[2]{Philip Brun}%
\author[3]{Niklaus Zimmermann}%
\author[4]{Ksenia Ermokhina}%
\author[5]{Olga Khitun}%
\author[6]{Natalia Koroleva}%
\author[1]{ Gabriela Schaepman-Strub}%
\affil[1]{University of Zurich Faculty of Science}%
\affil[2]{Swiss Federal Institute for Forest Snow and Landscape Research WSL}%
\affil[3]{Swiss Federal Institute for Forest Snow and Landscape Research}%
\affil[4]{A N Severtsov Institute of Ecology and Evolution of the Russian Academy of Sciences}%
\affil[5]{FSBIS Komarov Botanical Institute of the Russian Academy of Sciences}%
\affil[6]{Polar-Alpine Botanical Garden and Institute KSC RAS}%


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  \date{May 25, 2024}


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\begin{abstract}
Aim The Arctic ecosystems are exposed to amplified climate warming and,
in some regions, to rapidly developing economic activities. This study
assesses, models and maps the geographic patterns of community-level
plant species richness in the Western Siberian Arctic and estimates the
relative impact of environmental and anthropogenic factors driving these
patterns. With our study, we aim at contributing towards conservation
efforts for Arctic plant diversity. Location Western Siberian Arctic,
Russia. Methods We investigated the relative importance of environmental
and anthropogenic predictors of community-level plant species richness
in the Western Siberian Arctic using macroecological models trained with
an extensive geobotanical dataset. We included vascular plants, mosses
and lichens in our analysis, as non-vascular plants substantially
contribute to species richness in the Arctic. Results We found that the
mean community-level plant species richness in this vast Arctic region
does not decrease with increasing latitude. Instead, we identified an
increase in species richness from South-West to North-East, which can be
explained by environmental factors. We found that paleoclimatic factors
exhibit higher explained deviance compared to contemporary climate,
potentially indicating a lasting impact of ancient climate on tundra
species richness. We also show that the existing protected areas cover
only a small fraction of the regions with highest species richness.
Conclusions Our results reveal complex spatial patterns of
community-level species richness in the Western Siberian Arctic. We show
that climatic factors such as temperature (including paleotemperature)
and precipitation are the main drivers of plant species richness in this
area, and the role of relief is secondary. We suggest that while plant
species richness is mostly driven by environmental factors, an improved
spatial sampling is needed to robustly assess anthropogenic impact on
species richness. Our approach can be used to design conservation
strategies and to investigate drivers of plant species richness in other
arctic regions.%
\end{abstract}%



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\verb`Main_text_Current and past climate co-shape community-level plant species richness in the Western Siberian Arctic_08_11_23.docx`  available at \url{https://authorea.com/users/618633/articles/686432-current-and-past-climate-co-shape-community-level-plant-species-richness-in-the-western-siberian-arctic}

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