?This codebook.txt file was generated on 20180115 by Hannah M. Specht


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GENERAL INFORMATION
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1. Title of Dataset 
Dabbling duck age-at-banding and accompanying temporal environmental data from North American Prairies 1969-2015

2. Author Information


  Principal Investigator Contact Information
        Name: Hannah Specht
           Institution: University of Minnesota
           Address: Fisheries, Wildlife and Conservation Biology, 2003 Upper Buford Circle, St Paul, MN 55108
           Email:spech030@umn.edu


  Associate or Co-investigator Contact Information
        Name: Todd Arnold
           Institution: University of Minnesota
    Address: Fisheries, Wildlife and Conservation Biology, 2003 Upper Buford Circle, St Paul, MN 55108
           Email:arnol065@umn.edu




3. Date of data collection (single date, range, approximate date) 1969-2015


4. Geographic location of data collection (where was data collected?): 
Prairie Potholes and Parklands ecoregions of Alberta, Saskatchewan, Manitoba, Montana, North Dakota and South Dakota

5. Information about funding sources that supported the collection of the data:
NA


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SHARING/ACCESS INFORMATION
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1. Licenses/restrictions placed on the data: Attribution-NonCommercial-ShareAlike 3.0 United States


2. Links to publications that cite or use the data:
See Specht & Arnold, Journal of Applied Ecology


3. Links to other publicly accessible locations of the data:


4. Links/relationships to ancillary data sets:


5. Was data derived from another source?
           If yes, list source(s): Yes
Bird Banding Lab
USFWS Waterfowl Breeding Pair and Habitat Survey
North American Breeding Bird Survey
Dai-Palmer Drought Severity Index



6. Recommended citation for the data:

Specht, Hannah M; Arnold, Todd W. (2018). Data and model code for assessing dabbling duck age ratios and corresponding environmental correlates in the North American Prairies, 1969-2015. Retrieved from the Data Repository for the University of Minnesota, https://doi.org/10.13020/D6F976. 


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DATA & FILE OVERVIEW
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1. File List

A. Filename: Specht&Arnold_ModelScript.R
      Short description: R script to run MCMC model in JAGS used to assess drivers of temporal variation in waterfowl fecundity in the North American Prairies.         

   B. Filename: AMWI_final_dat.csv
      Short description: Analysis data for American Wigeon model        
        
   C. Filename: BWTE_final_dat.csv       
      Short description:  Analysis data for Blue-winged Teal model              
      
   D. Filename: GADW_final_dat.csv              
      Short description: Analysis data for Gadwall model              

   E. Filename: MALL_final_dat.csv              
      Short description: Analysis data for Mallard model              

   F. Filename: NOPI_final_dat.csv              
      Short description: Analysis data for Northern Pintail model              

2. Relationship between files:        
 CSV files represent datasets for five waterfowl species. All files are in the same format, the same analysis model was applied to each dataset. The R-Script can be used to analyze data from supplied datasets. 



3. Additional related data collected that was not included in the current data package: NA




4. Are there multiple versions of the dataset? yes/no
   If yes, list versions:
           Name of file that was updated:
                     i. Why was the file updated? 
                ii. When was the file updated?
           Name of file that was updated:
                      i. Why was the file updated?
                    ii. When was the file updated?






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METHODOLOGICAL INFORMATION
--------------------------


1. Description of methods used for collection/generation of data: 

See Specht & Arnold, Journal of Applied Ecology

2. Methods for processing the data: 

We used age ratios from banding data and hierarchical mixed-effect models to examine how fecundity of five North American dabbling duck species was affected by temporal variation in hydrological cycles, intra- and inter-specific density dependence and alternate prey availability, and whether those relationships were consistent across a broad geographic area. See Specht & Arnold, Journal of Applied Ecology, as well as Specht&Arnold_ModelScript.R, for more details. 


3. Instrument- or software-specific information needed to interpret the data: Data formatted as csv. 


4. Standards and calibration information, if appropriate:
NA

5. Environmental/experimental conditions:
NA

6. Describe any quality-assurance procedures performed on the data:
See Specht & Arnold, Journal of Applied Ecology


7. People involved with sample collection, processing, analysis and/or submission: Hannah Specht, Todd Arnold



-----------------------------------------
DATA-SPECIFIC INFORMATION FOR: AMWI_final_dat.csv, BWTE_final_dat.csv, GADW_final_dat.csv, MALL_final_dat.csv, NOPI_final_dat.csv
-----------------------------------------

1. Number of variables:  30


2. Number of cases/rows: variable



3. Missing data codes: 
        Code/symbol: NA        Definition: Data not available


4. Variable List            

    A. Name: HY_bands
       Description: Number of bands deployed on juvenile female ducks (Hatch Year or Local age designation). Data from USGS Bird Banding Lab.

    B. Name: AHY_bands
       Description: Number of bands deployed on adult female ducks (Second year or After second year designations). Data from USGS Bird Banding Lab.
	
    C. Name: Age.Rat
       Description: HY_bands/(HY_bands+AHY_bands)
	
    D. Name: TBands
       Description: Total number of bands deployed on female ducks(HY_bands+AHY_bands)
	
	
	
   E. Name: Strata
       Description: USFWS Waterfowl Breeding Pair Habitat Survey Stratum number corresponding to waterfowl banding site.


    F. Name: Year
       Description: Year of banding data

    G. Name: BBLSite
       Description: ID for unique Banding sites created by concatenating reported banding site latitude and longitude (decimal degrees)

    H. Name: country
       Description: Country of banding site, US=United States or CA=Canada

    I. Name: Strata_fac
       Description: 14 unique strata re-numbered 1-14

    J. Name: Year_fac
       Description: up to 42 unique years re-numbered 1-42 within each year

    K. Name: Site_fac
       Description: up to 11 unique sites re-numbered 1-14 within each site and year

    L. Name: Lat
       Description: Banding site latitude (decimal degrees)

    M. Name: Long
       Description: Banding site longitude (decimal degrees)

    N. Name: Lag1DifPonDen
       Description: Stratum and year specific Inundated May Pond Density in year T-Inundated May Pond Density in year T-1. Thus, the increase or decrease in inundated May ponds relative to the previous year. Derived from USFWS Waterfowl Breeding Pair and Habitat survey Data.
    
    O. Name: wPDSI
       Description: Dai-Palmer drought severity index for the specified stratum and year derived as a weighted mean of overlap between strata geographic boundaries (from USFWS Waterfowl Breeding Pair and Habitat survey) and PDSI data cells. 
   
    P. Name: TPop.Den.T
       Description: Dabbling duck breeding pairs per sq km for the specified stratum and year. Derived from USFWS Waterfowl Breeding Pair and Habitat survey Data.

    Q. Name: SppDuckPondDen
       Description: Conspecific species breeding pairs per inundated May Pond for the specified stratum and year. Derived from USFWS Waterfowl Breeding Pair and Habitat survey Data.

    R. Name: SEOW.freq.T
       Description: Short-eared owls per surveyed Breeding Bird Survey Route within each stratum and year. Derived from Breeding Bird Survey data with routes specified to each stratum.

    S. Name: SEOW.freq.TM1
       Description: Short-eared owls per surveyed Breeding Bird Survey Route within each stratum for the previous year. 

    T. Name: TPop.Den.TM1
       Description: Dabbling duck breeding pairs per sq km for the specified stratum and the previous year. Derived from USFWS Waterfowl Breeding Pair and Habitat survey Data.

    U. Name: ST_Year
       Description: Year standardized across all possible years.

    V. Name: ST_PD1Diff
       Description: Lag1DifPonDen standardized across all possible strata and years.

    W. Name: ST_wPDSI
       Description: wPDSI standardized across all possible strata and years.

    X. Name: ST_BPDenUP
       Description: TPop.Den.T standardized across all possible strata and years.

    Y. Name: ST_BPDenPond
       Description: SppDuckPondDen standardized across all possible strata and years.

    Z. Name: ST_SEOWT
       Description: SEOW.freq.T standardized across all possible strata and years.

    AA. Name: ST_SEOWTL1
       Description: SEOW.freq.TM1 standardized across all possible strata and years.

    AB. Name: ST_TPop.Den.TM1
       Description: TPop.Den.TM1 standardized across all possible strata and years.

    AC. Name: ST.Lat
       Description: Lat standardized across all possible strata and years.

    AD. Name: ST.Long
       Description: Long standardized across all possible strata and years.