DOI: 10.5281/zenodo.12799271
title: Raw data for: Spatial and temporal variation in farmland bird nesting ecology: Implications for effective Corn Bunting Emberiza calandra conservation

description: These are raw data accompanying the study "Spatial and temporal variation in farmland bird nesting ecology: Implications for effective Corn Bunting Emberiza calandra conservation". All information on data origin, data analysis, and derived implications will be available with the original publiation.
description: Information on dataset columns:

 

  


Column name
Content


Year
Year of data collection


Region
Study region (4 levels, as given in supplemental Table S1)


Region_Mayfield
Study region (2 levels, simplified as used for Mayfield DSR analysis)


FirstEggDate
FED: Absolute date of first egg laying (observed or backcalculated as given in manuscript)


FirstEggDay_DOY
FED: expressed as Day of the Year (DOY)


HatchDate
Absolute data of hatching (observed or backcalculated as given in manuscript. Used in analysis of Mayfield DSR)


NestHabitat
Habitat or land use at nesting site.


FirstBrood
Categorization as first brood (1) or any later (replacement or second) broods (0). Inferred as plausible as possible based on previous obserations in same territory.


NestSuccess
TRUE: nest successful as inferred from parents feeding jumplings in vicinity of previously known nest. FALSE: nest failed, either directly confirmed or deduced from lack of jumpling feeding after expected date of nest leaving


Nest.visited
TRUE: nest visited at least once for confirmation, control of nest status. FALSE: All nest observations from distance, no neset visit


LandUseSurvival
Fraction of years in which this particular nest's breeding phase did not overlap with any land use activity (harvest, mowing, grazing) on the very same patch as documented in other years.


N_cases
Land use survival: number of years for which information on land use dates were available for this particular patch


Eggs.full
Clutch size (number of eggs)


Eggs.lost
Number of eggs lost from known clutch prior to hatching


Eggs.hatched
Number of eggs that hatched


Eggs.deaf
Number of unhatched eggs that remained in nest (infertile or non-developing for other reasons)


Clutch.Complete
Identifies nests with information on full clutch size


LastPres
Mayfield DSR: Day number (counted from earliest record in dataset) on which this nest was last present


LastCh
Mayfield DSR: Day number (counted from earliest record in dataset) on which this nest was last checked


VegHeight
Dominant vegetation height at nest site (in cm)


VegCover
Cover of herbaceous vegetation layer in 1m circle around the nest (in %)


NestHeight
Height of upper nest rim above ground (cm)


Analysis1.NestHabitat
Data included into the analysis of nest habitats


Analysis2.ClutchSize
Data included into the analysis of clutch sizes


Analysis3.HatchRate
Data included into the analysis of hatch rates


Analysis4.FED
Data included into the analysis of First Egg Dates (FED)


Analysis5.ApparentSurvival
Data included into the analysis of apparent survival


Analysis6.LandUseSurvival
Data included into the analysis of land use survival


Analysis7.DSR
Data included into the analysis of Daily nest Survival Rates (DSR)