Hawaiian gallinule vital rate data from O'ahu and Kaua'i: Reproduction and survival data from an endangered bird

Where stable source populations of at-risk species exist, translocation may be a reasonable strategy for re-establishing extirpated populations. However, the success rates of such efforts are mixed, necessitating thorough preliminary investigation. Stochastic population modeling can be a useful method of assessing the potential success of translocations. Here, we report on the results of modeling translocation success for the Hawaiian Common Gallinule (‘alae ‘ula; Gallinula galeata sandvicensis), an endangered waterbird endemic to the Hawaiian Islands. Using updated vital rates, we constructed a model simulating three existing extant (wild) source populations and a hypothetical recipient site on another island. We then projected the effects of six different translocation scenarios and sensitivity of the results to variation of three important demographic parameters on the probability of extinction (PE) of the reintroduced and donor populations. Larger translocations, of at least 30 bird..., Reproductive rate data (HAGAVitalRates_9-10-23_Export)
We acquired nest data from recent monitoring projects run through the state of Hawaii Department of Land and Natural Resources, Division of Forestry and Wildlife (DOFAW) on O‘ahu, and graduate dissertation work conducted at Hanalei National Wildlife Refuge on Kaua‘i (by BW). Nests on O‘ahu were located during routine weekly or biweekly surveys using an area-search survey. A team of 3–7 observers walked meandering transects with the goal of locating all nests in a given area. All nests were visually checked 2 times per week until hatching or failure. DOFAW nest monitoring continued throughout the annual cycle.
A subset of Hawaiian Gallinule nests on O‘ahu was monitored from January through December 2020–2023. All nests were visually checked at least twice weekly, and a subset was monitored from January through December 2020–2023 using SPYPOINT Solar Dark (GG Telecom, Quebec, Canada) passive infrared cameras (trigger speed: 0.07 s) pl..., , # Hawaiian gallinule vital rate data from O'ahu and Kaua'i - Reproduction and Survival data from an endangered bird

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

Two excel sheets with data formatted for use in Program MARK and import into R. First has encounter histories of HAGA broods surveyed in three locations (see manuscript). Second has raw vital rate data from HAGA nests encountered at several sites on two islands (see manuscript for details) 

## Description of the data and file structure

**Reproductive rate data (HAGAVitalRates_9-10-23_Export)**

This includes information on Hawaiian gallinule nests that were discovered and monitored at multiple sites in Hawaii. Explanation of individual data columns below. 

**File Columns**

\**Nest ID - **ID of the nest

\**Year **- Year of survey

**Island** - Island on which data were collected

**No.** Eggs - Number of eggs

**No. Chicks** - Number of hicks if any

**Nest success 1.0** - Whether nest...