Description
Measure signed gap or overlap between supplied amphibian call intervals.
Reptile and amphibian records distinguish specimen identity, anatomical measurement, observation effort, date uncertainty and location protection. Unobserved status differs from recorded absence, while a call-overlap label uses supplied intervals. These local records and geometric terms do not identify a species, infer health or establish adequate field practice.
Measure signed gap or overlap between supplied amphibian call intervals.
When to use this tool
Use Amphibian Call Event Gap when you already have firstCallEnd, nextCallStart and need to measure signed gap or overlap between supplied amphibian call intervals.
How to use the tool and how it works
- Enter firstCallEnd, nextCallStart. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read signedGap, overlapping. Inspect overlapping before interpreting the associated values.
Return nextCallStart-firstCallEnd and flag nextStart<firstEnd as overlapping.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstCallEnd | First Call End | Required. Finite number. |
| nextCallStart | Next Call Start | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| signedGap | Signed Gap | Required. Finite number. |
| overlapping | Overlapping | Required. Boolean. |
{
"input": {
"firstCallEnd": 5,
"nextCallStart": 7.5
},
"output": {
"signedGap": 2.5,
"overlapping": false
}
}Limitations and assumptions
- Times share one basis; no call is detected, identity resolved or behavior interpreted.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review original observations, specimens, calibrated images and survey logs for substantive interpretation. Use the appropriate complete biological or survey method, and protect underlying location data; local labels and display replacements do not perform those tasks.
References
Similar or alternative tools
- Amphibian Eggcluster Image Area Scale
Convert an egg-cluster pixel area using a squared linear calibration.
- Acoustic Survey Frog Call Overlap Label
Classify overlap, touching or separation of two supplied call intervals.