DOI: 10.5061/dryad.9p8cz8wz3
title: Space use and movements during egg laying associated with nest fate and female survival in eastern wild turkeys

description: Reproduction is a fundamental aspect of a species’ life history that is
 energetically costly, yet critical for population sustainability and
 genetic diversity. Wild turkeys exhibit high rates of nest loss and female
 mortality during reproduction, prompting females to make decisions related
 to spatial and movement decisions during nesting. Using GPS data from
 eastern wild turkeys (Meleagris gallopavo silvestris), we assessed female
 movements and space use during laying and evaluated potential impacts of
 those metrics on nest success and female survival during incubation. We
 used a Bayesian logistic regression to estimate nest success and female
 survival based on space use, daily movements, and range overlap with
 conspecifics during the laying period. We found that with each increase of
 ~ 700 m in average daily distance traveled during laying, there was a
 1.73% decrease in the probability of nest success. We also found that
 having a greater number of conspecific females with overlapping core areas
 had a positive influence on nest fate. Specifically, an increase of 1
 overlapping female (one standard deviation) was associated with an 4.76%
 increase in the probability of nest success. Conversely, we found weak
 support that female survival was positively related to increasing average
 daily distances traveled. Our findings suggest that female wild turkeys
 perceive reproductive advantages to sharing space with conspecifics during
 the laying period. Conversely, our findings suggest that movements of
 female wild turkeys within their reproductive period may only weakly
 influence metrics of reproductive success during both laying and
 incubation.
description: # Space use and movements during egg laying associated with nest fate and
 female survival in eastern wild turkeys Dataset DOI:
 [10.5061/dryad.9p8cz8wz3](https://doi.org/10.5061/dryad.9p8cz8wz3) ##
 Description of the data and file structure CSV titled
 Laying_period_covariates.csv includes study sites, year, bird ID, nest
 attempts, fate (hatched or did not), laying and incubation dates, core
 area and home range sizes, daily distances traveled, along with overlap in
 space use metrics. **Variables:** * States include Louisiana (LA), South
 Carolina (SC), and Georgia (GA) * Study sites include Western Louisiana
 (WLA), Webb Center (WEBB), Savannah River Site (SRS), Cedar Creek WMA
 (CC), BF Grant WMA (BFG), and Southeastern Louisiana (SELA). * Year is the
 year the animal was monitored * ID is the bird's unique identifier *
 attempt is nest attempt (1 = first nest, 2 = second, etc.) * nest_fate is
 either hatched (1) or failed (0) * Age includes adults (1) or juveniles
 (0) * Core area (CoreArea) and home ranges (HomeRange) are in hectares *
 Daily distances (DailyDistance) moved are in meters * Date_laying is the
 date the female started laying a clutch * date_incubation is the date the
 female started incubating * date_failure is the date that the nest failed
 * Identifier and uniqueID are simply IDs assigned to females * Capture is
 the date the female was captured * End was the date the female was last
 monitored * died_nesting is 0 for females who did not die while nesting,
 whereas 1 means the female died while nesting * Days_laying is the number
 of days the female laid eggs * Overlap_CA notes that the female either did
 (1) or did not (0) overlap core areas with another female * overlap_HR
 notes that the female either did (1) or did not (0) overlap home ranges
 with another female * Overlap_CA_HR notes that the female's core area
 either did (1) or did not (0) overlap the home range of another female *
 Survival means the female either did (1) or did not (0) survive *
 Overlap_IDs_CA notes how many core areas of other females the female
 overlapped * overlap_IDs_HR notes how many home ranges of other females
 the female overlapped * overlap_IDs_5090 notes how many home ranges
 overlapped the core area of the female All dates in the data file are in
 month, day, and year format.   ## Code/software Program R, version 4.3.1,
 was used. The code is contained within Laying_behavior_models.R