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\title{Environmental and anthropogenic factors co-shape community-level plant
species richness across the Western Siberian Arctic}



\author[1]{Zemlianskii V.А.}%
\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 24, 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 activity. This study aims
to identify, model and map the patterns of community-level plant species
richness in the Western Siberian Arctic and the environmental and
anthropogenic factors driving those patterns. With our results and
methods, we aim at contributing towards conservation efforts for arctic
species richness. Location Western Siberian Arctic, Russia. Methods We
investigated the relative impact of environmental and anthropogenic
factors on community-level plant species richness of the Western
Siberian Arctic, using macroecological models trained with an extensive,
newly assembled geobotanical dataset. We included vascular plants,
mosses and lichens in our analysis, as non-vascular plants substantially
contribute to species richness and ecosystem functions 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 climatic, topographical and
anthropogenic factors. We found that the lowest species richness is
associated with a medium ([?] 35 km) distance to infrastructure while
neighboring (\textless{}10 km) and remote ([?] 100 km) areas have
relatively high species richness. We also show that the existing
protected areas cover only a small part of the areas with the highest
species richness. Conclusions Our results reveal complex spatial
patterns of community-level species richness distribution in the Western
Siberian Arctic. We suggest that the impact of economic activities on
species richness is ambiguous and not limited to areas directly affected
by infrastructure. We show that economic activities along with other
factors contribute to heterogeneous distribution of species richness on
a broad scale. Our approach and results can be used to develop nature
protection strategies for other arctic regions facing similar
challenges.%
\end{abstract}%



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