### This project site provides supporting information for the following pulication:
>Humphreys JM, Srygley RB, Lawton D, Hudson A, and Branson DH (2022). Grasshoppers Exhibit Asynchrony and Spatial Non-Stationarity in Response to the El Nino/Southern and Pacific Decadal Oscillations. Ecological Modelling, Volume 471, https://doi.org/10.1016/j.ecolmodel.2022.110043
Videos showing key key analysis results can be viewed in the [Video Animations][1] component. Code and data to run the analysis are provided in the [Model Code and Data][2] component or at the [GitHub][3] site linked in the Files component. Executed code with interactive code and data is available on [RPubs][4].
![enter image description here][5]
Directed acyclic graph depicting the effect of ENSO and PDO climate-oceanographic variability (exposures) on grasshopper density (outcome). As shown, GH<sub>obs</sub> signifies incomplete observation data collected during field survey as a function of "true" grasshoppers (GH<sub>true</sub>). Also shown are precipitation (P), temperature (T), drought (D), elevation (E), vegetation (V), soil (S) as functions of soil pH and organic carbon (OC), cultivated lands (Cult), and biotic factors related to intraspecific (Inter) and intraspecific (Intra) compettion, predation (Pred), and unobserved error (U) as a result of biased field sampling.
[1]: https://osf.io/9f56b/
[2]: https://osf.io/3fsgv/
[3]: https://github.com/JMHumphreys/gh_enso_asynchrony
[4]: https://rpubs.com/JMHumphreys/asynchrony
[5]: https://files.osf.io/v1/resources/dmyhf/providers/osfstorage/627d48266a659e1a70eec28b?mode=render
