Bark Beetle Entry Hole Density /m² Counter
Pool actual BeetleEntryHoles counts against assessed BarkAreaM2 with unavailable coverage, not whole-tree count, inferred organism identity or unobserved density. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Description
Beetle holes per assessed bark area summarize observed damage density.
Beetle holes per assessed bark area summarize observed damage density.1
Unassessed bark area reduces coverage and should not be counted as inspected area with zero holes. Use this tool to calculate bark beetle entry hole density /m² counter from the supplied measurements and assumptions.
When to use Bark Beetle Entry Hole Density /m² Counter
Use this tool to calculate bark beetle entry hole density /m² counter from the supplied measurements and assumptions. Establish the species/site, survey protocol, units, sampled area or exposure, and the independently chosen reference or model.
How to use Bark Beetle Entry Hole Density /m² Counter and understand its results
- Establish the species/site, survey protocol, units, sampled area or exposure, and the independently chosen reference or model.
- Enter observedBeetleEntryHolesCounts, observedAssessedBarkAreaM2, observedUnassessedBarkAreaM2, using the field meanings and rules below, then run the tool.
- Read knownPooledEvidenceDensity, unassessedExposureFraction. Interpret the fields using their units, signs and evidence conventions below.
- If input validation fails, correct the reported field and run again. Before applying the result, check reference scope, model assumptions and any missing evidence or placeholder values.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedBeetleEntryHolesCounts | Observed beetle entry holes counts | list of number | Required |
| observedAssessedBarkAreaM2 | Observed assessed bark area m2 | list of number | Required |
| observedUnassessedBarkAreaM2 | Observed unassessed bark area m2 | list of number | Required |
Enter nonempty aligned nonnegative integer damage counts bounded to 1,000,000, positive assessed bark areas in m² and nonnegative unassessed exposures. Divide pooled counts by pooled assessed exposure, then divide pooled unassessed exposure by total assessed-plus-unassessed exposure. Unknown exposure does not enter the rate denominator.
observedDamageDensity=Σcounts/ΣassessedExposure; unassessedFraction=ΣunknownExposure/[ΣassessedExposure+ΣunknownExposure] Use the exact units, boundary rules, ordering and missing-evidence conventions above.
| Output field | Meaning | Value type |
|---|---|---|
| knownPooledEvidenceDensity | Known Pooled Evidence Density; follow the units, sign, ordering and evidence convention stated above | number |
| unassessedExposureFraction | Unassessed Exposure Fraction; follow the units, sign, ordering and evidence convention stated above | number |
{
"input": {
"observedBeetleEntryHolesCounts": [
2,
6
],
"observedAssessedBarkAreaM2": [
1,
3
],
"observedUnassessedBarkAreaM2": [
1,
1
]
},
"output": {
"knownPooledEvidenceDensity": 2,
"unassessedExposureFraction": 0.3333333333333333
}
}Limitations and assumptions
Unassessed bark area reduces coverage and should not be counted as inspected area with zero holes. Interpretation depends on the units, sampling scope and exact model described above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse evidence arrays fail validation; the specific bounds and alignment requirements are stated above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful result reporting false, no matches or missing evidence.
Alternative or Complementary methods
Use Mountain Pine Beetle Outbreak Risk Score for this related task: A beetle-risk rubric combines independently assigned points for observed criteria.
Use Epicormic Shoots Per Meter Bole Counter when its separate inputs and assumptions fit the question: Shoot breakage per assessed length is an observed damage density under a stated survey protocol.
References
Similar or alternative tools
- Mountain Pine Beetle Outbreak Risk Score
A beetle-risk rubric combines independently assigned points for observed criteria.
- Epicormic Shoots Per Meter Bole Counter
Shoot breakage per assessed length is an observed damage density under a stated survey protocol.