Data and scripts from: Pathogen spillover driven by rapid changes in bat ecology. Food shortage regression tree model

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These files contain compiled input data, output data and model script for the Food Shortage Regression Tree Model, as reported in Eby et al. (2022), Pathogen spillover driven by rapid changes in bat ecology. In Eby et al., we found: During recent decades, pathogens that originated in bats have become an increasing public health concern. A major challenge is to identify how those pathogens spill over into human populations to generate a pandemic threat. Many correlational studies associate spillover with changes in land use or other anthropogenic stressors, although the mechanisms underlying the observed correlations have not been identified. One limitation is the lack of spatially and temporally explicit data on multiple spillovers, and on the connections among spillovers, reservoir host ecology and behavior, and viral dynamics. We present 25 years of data on land-use change, bat behavior, and spillover of Hendra virus from Pteropodid bats to horses in subtropical Australia. These data show that bats are responding to environmental change by persistently adopting behaviors that were previously transient responses to nutritional stress. Interactions between land-use change and climate now lead to persistent bat residency in agricultural areas, where periodic food shortages drive clusters of spillovers. Pulses of winter flowering of trees in remnant forests appeared to prevent spillover. We developed integrative Bayesian network models based on these phenomena that accurately predicted the presence or absence of clusters of spillovers in each of 25 years. Our long-term study identifies the mechanistic connections among habitat loss, climate, and increased spillover risk. It provides a framework for examining causes of bat virus spillover and for developing ecological countermeasures to prevent pandemics.
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This research was developed with funding from the National Science Foundation (DEB-1716698), U.S. Defense Advanced Research Projects Agency (DARPA PREEMPT D18AC00031), and U.S. National Institute of Food and Agriculture (1015891). AJP was supported by an Australian Research Council DECRA fellowship (DE190100710).
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Emerging Infectious Diseases; Viral Zoonoses; Bat Viruses; Land Use Induced spillover
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Eby, Peggy, Alison Peel, Andrew Hoegh, Wyatt Madden, John Giles, Peter Hudson, and Raina Plowright (2022) Pathogen spillover driven by rapid changes in bat ecology. Nature.
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