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\begin{document}

\title{The species richness-environment relationship for cherries
(\emph{Prunus} subgenus \emph{Cerasus}) across the Northern Hemisphere}



\author[1]{Chen-Long Fu}%
\author[2]{Chun-Ping Xie}%
\author[3]{Muhammad Idrees}%
\author[1]{Xian-Gui Yi}%
\author[1]{Xian-Rong Wang}%
\author[1]{Meng LI}%
\affil[1]{Nanjing Forestry University}%
\affil[2]{Qiongtai Normal University}%
\affil[3]{Neijiang Normal University}%


\vspace{-1em}



  
  \date{May 15, 2024}


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\begin{abstract}
Understanding large-scale patterns of biodiversity and their drivers
remains significant in biogeography. Cherries species (\emph{Prunus}
subgenus \emph{Cerasus}, Rosaceae) are economically and ecologically
important in ecosystems and human agricultural activities. However, the
mechanisms underlying patterns of species richness-environment
relationship in \emph{Cerasus} remain poorly understood. We collected
and filtered worldwide specimen data to map the species richness of
\emph{Cerasus} at the global scale. The map of \emph{Cerasus} species
richness was created using 21043 reliable recorded specimens. The center
of \emph{Cerasus} diversity was determined using spatial cluster
analysis. Stepwise regression analysis was carried out using five groups
of 21 environmental variables and an integrated model was included to
assess the impact of the overall environment. We calibrated each of the
four integrated models and used them to predict the global
\emph{Cerasus} species richness and that of the other continents. Our
results revealed that \emph{Cerasus} species have two centers of
diversity (the southwest of China and Honshu Island in Japan) with
differing environmental variables influencing the distribution patterns
of these two centers. In the southwest of China, hydrothermal conditions
are the main driving factor while in Japan, habitat heterogeneity is the
main driving factor. The relationship between the abundance of the
\emph{Cerasus} and the various groups of factors generally supported
both the productivity and the habitat heterogeneity hypothesis. However,
these hypotheses did not fully explain the \emph{Cerasus} species
richness pattern, indicating that other factors such as historical
environment, topography, and human activities likely played a role in
pattern formation. The high level of habitat heterogeneity and better
hydrothermal conditions may have played an important role in the
establishment of its globally consistent richness-climate relationship.
Our results can provide valuable information for the classification, and
conservation of \emph{Cerasus} natural resources, as well as contribute
to furthering our understanding of biogeography at a global scale.%
\end{abstract}%



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\textbf{Hosted file}

\verb`The species richness-climate relationship for Cerasus across the Northern Hemisphere.docx`  available at \url{https://authorea.com/users/522738/articles/595066-the-species-richness-environment-relationship-for-cherries-prunus-subgenus-cerasus-across-the-northern-hemisphere}

\textbf{Hosted file}

\verb`TABLE 1.docx`  available at \url{https://authorea.com/users/522738/articles/595066-the-species-richness-environment-relationship-for-cherries-prunus-subgenus-cerasus-across-the-northern-hemisphere}

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\textbf{Hosted file}

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\textbf{Hosted file}

\verb`TABLE 5.docx`  available at \url{https://authorea.com/users/522738/articles/595066-the-species-richness-environment-relationship-for-cherries-prunus-subgenus-cerasus-across-the-northern-hemisphere}\selectlanguage{english}
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