Lapland longspur and Gambel's white crowned sparrow egg and nestling survival near Toolik Field Station, Alaska, summers 2012- 2016.
Variables
Nest_ID
- Label: Nest_ID
- Definition: Unique identifier for each nest
- Type: Nominal
- Missing values: None specified
species
- Label: species
- Definition: Species name (LALO= Lapland longspur, GWCS= Gambel's white-crowned sparrow)
- Type: Nominal
- Missing values: None specified
site
- Label: site
- Definition: Site
- Type: Nominal
- Missing values: None specified
Egg_ID
- Label: Egg_ID
- Definition: Unique identified for an egg within nest
- Type: Physical quantity
- Unit: number
- Maximum: 6
- Minimum: 1
- Precision: Not specified
- Missing values: None specified
date
- Label: date
- Definition: Date of observation
- Type: Date/time
- Date format: MM/DD/YYYY
- Missing values: None specified
Alive
- Label: Alive
- Definition: Status of egg (Alive/ Dead)
- Type: Nominal
- Missing values: None specified
prev.obs
- Label: prev.obs
- Definition: Date of previous observation or if first observation estimated final egglay date.
- Type: Date/time
- Date format: MM/DD/YYYY
- Missing values:
- NA = Missing value
Interval
- Label: Interval
- Definition: Number of days between current observation and previous
- Type: Physical quantity
- Unit: number
- Maximum: 21
- Minimum: 0
- Precision: Not specified
- Missing values: None specified
Renest
- Label: Renest
- Definition: Scored as 0/1 (no/yes) and used to conduct analyses separately for renests and first clutches
- Type: Physical quantity
- Unit: number
- Maximum: 1
- Minimum: 0
- Precision: Not specified
- Missing values: None specified
Researcher_Death
- Label: Researcher_Death
- Definition: Scored as 0/1 (no/ yes) and used to exclude eggs accidentally cracked by researchers
- Type: Physical quantity
- Unit: number
- Maximum: 1
- Minimum: 0
- Precision: Not specified
- Missing values: None specified
Est_CI
- Label: Est_CI
- Definition: Estimated clutch initiation date
- Type: Date/time
- Date format: MM/DD/YYYY
- Missing values: None specified
Est_Final_Egglay
- Label: Est_Final_Egglay
- Definition: Estimated date that the last egg was laid in nest, used with date of observation to calculate nest age.
- Type: Date/time
- Date format: MM/DD/YYYY
- Missing values: None specified