Walk Away Split Timing Checker

Screen a caller walk-away development/mating timing scenario against a forage horizon; no natural queen-development constants, mating success or split recommendation is embedded.

Description

A walk-away split timing scenario combines remaining development and subsequent mating and laying delays.

A walk-away split timing scenario combines remaining development and subsequent mating and laying delays. Comparing the modeled resumption with a forage horizon exposes timing assumptions without guaranteeing colony success.^[1]

Screen a caller walk-away development/mating timing scenario against a forage horizon; no natural queen-development constants, mating success or split recommendation is embedded.

When to use Walk Away Split Timing Checker

Use this tool to screen a caller walk-away development/mating timing scenario against a forage horizon; no natural queen-development constants, mating success or split recommendation is embedded.

Prepare the hive, sample or operating measurements and any supplied target values. Confirm units, timing and whether counts or masses refer to the same population or batch.

How to use Walk Away Split Timing Checker and understand its results

Prepare the hive, sample or operating measurements and any supplied target values. Confirm units, timing and whether counts or masses refer to the same population or batch.
Enter queenlessStartDay, youngestAvailableEggAgeDays, eggToEmergenceDays, minimumMatingDelayDays, minimumPostMatingLayingDelayDays, forageWindowEndDay using the field table and calculation rules, then run the tool.
Read modeledResumedLayingDay, forageWindowMarginDays. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
queenlessStartDay	Queenless start day	number	Required
youngestAvailableEggAgeDays	Youngest available egg age days	number	Required
eggToEmergenceDays	Egg to emergence days	number	Required
minimumMatingDelayDays	Minimum mating delay days	number	Required
minimumPostMatingLayingDelayDays	Minimum post mating laying delay days	number	Required
forageWindowEndDay	Forage window end day	number	Required

Supply finite start and forage-end day coordinates, positive egg-to-emergence duration and nonnegative egg age and delays. Egg age cannot exceed the supplied development duration. Return modeled resumed-laying day and signed forage-end-minus-resumption margin; negative margins are retained.

resumedDay = start + developmentDays−youngestEggAge + matingDelay + layingDelay

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
modeledResumedLayingDay	Modeled resumed laying day	number
forageWindowMarginDays	Forage window margin days	number

json

{
  "input": {
    "queenlessStartDay": 0,
    "youngestAvailableEggAgeDays": 1,
    "eggToEmergenceDays": 16,
    "minimumMatingDelayDays": 5,
    "minimumPostMatingLayingDelayDays": 2,
    "forageWindowEndDay": 20
  },
  "output": {
    "modeledResumedLayingDay": 22,
    "forageWindowMarginDays": -2
  }
}

Limitations and assumptions

All biological durations are supplied, not fixed defaults. Queen rearing, mating success, weather and colony adequacy are not established; this is a timing scenario rather than a split recommendation.

Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Virgin Mating Flight Window Days: Screen forecast days against supplied queen-age, temperature and wind windows; eligibility does not guarantee mating flights, drone availability or fertility. For a complementary task, use Drone Brood Trapping Cycle Days: Intersect caller removal/emergence windows for observed capped drone-brood cohorts; describes a timing scenario only, not a validated mite-control schedule or efficacy claim.

References

Walk Away Split Timing Checker — tool.io

Similar or alternative tools

Virgin Mating Flight Window Days
Screen forecast days against supplied queen-age, temperature and wind windows; eligibility does not guarantee mating flights, drone availability or fertility.
Drone Brood Trapping Cycle Days
Intersect caller removal/emergence windows for observed capped drone-brood cohorts; describes a timing scenario only, not a validated mite-control schedule or efficacy claim.