Data and code from: Factors influencing shorebird use of post-harvest flooded rice fields in California’s Sacramento Valley

Because of the importance of the Central Valley of California, USA, to shorebirds along the Pacific Flyway, conservation investments have been made in the area’s agricultural fields and managed wetlands. Increasingly, landowner incentive programs are being used to deliver shorebird habitat, presenting opportunities to answer remaining questions about which implementation strategies and field management practices are most effective at attracting birds. To provide management guidance for these investments, we collected and analyzed 5 years of data (2014-2018) on shorebird abundance in flooded rice fields enrolled in a dynamic habitat incentive program. The program incentivized flooding in fallow and post-harvest rice fields in seasons when habitat is relatively sparse, specifically the early fall and late spring. Across nearly 9,000 field observations over 5 years, we explored the relationship between abundance and density (birds/ha) of shorebirds and vegetation cover, soil clay, landscap..., Bird surveys
We monitored enrollment fields distributed across the Sacramento Valley (Figure 1) following the sampling design and survey protocol described in Golet et al. (2018). Briefly, we selected a set of spatially balanced random survey point locations along the edges of fields using the generalized random tessellation stratified (GRTS) sampling methodology (Stevens and Olsen 2004). The rice fields were composed of multiple checks (or patties), and we established only 1 survey point in any given check. From these points, we conducted surveys of semi-circular areas within the fields that had a fixed radius of 200 m, or less when they intersected earthen levees or field boundaries (Reiter et al. 2011, Strum et al. 2013). While the number of survey areas within an enrollment field depended upon its size, we tried to ensure a sampling density of 1 survey point per 12 ha.
Trained biologists conducted surveys and established a common understanding of all data entry queries during group ..., , # Data and Code for \"Factors influencing shorebird use of post-harvest flooded rice fields in California’s Sacramento Valley\"

[https://doi.org/10.5061/dryad.v9s4mw757](https://doi.org/10.5061/dryad.v9s4mw757)

## Description of the data and file structure

The zipped folder contains three files that support the results in the paper \"**Factors influencing shorebird use of post-harvest flooded rice fields in California’s Sacramento Valley**\" by Conlisk et al. 2024.
### Files and variables

#### File: Repository.zip

**Description:** 

The zipped folder contains three files:

Data08082024.csv – the data used for all analyses in the paper “Factors influencing shorebird use of post-harvest flooded rice fields in California’s Sacramento Valley” by Conlisk et al. 2024

Metadata.xlsx – descriptions of all the columns within the data file Data08082024.csv

AnalysisCode.R – the code used to analyze data and calculate summary statistics

All results in the paper should be repeatable with these fi...