Description
Return their nonnegative overlap and its fraction of survey duration.
Wildlife survey effort can use observer-hours, trap-nights, observation windows, or repeated visits. Equivalent effort applies a declared reporting rule and does not automatically correct detection probability.
Return their nonnegative overlap and its fraction of survey duration.
When to use this tool
Use Reptile Survey Basking Window Overlap when you need one explicit herpetological survey-effort component.
How to use the tool and how it works
- Enter surveyStart, surveyEnd, windowStart, windowEnd. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read eligibleDuration, surveyShare. Use the output convention below.
Require positive survey duration and an ordered basking window. Return their nonnegative overlap and its fraction of survey duration.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| surveyStart | Survey Start | Required. Finite number. |
| surveyEnd | Survey End | Required. Finite number. |
| windowStart | Window Start | Required. Finite number. |
| windowEnd | Window End | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| eligibleDuration | Eligible Duration | Required. Finite number. |
| surveyShare | Survey Share | Required. Finite number. |
{
"input": {
"surveyStart": 8,
"surveyEnd": 12,
"windowStart": 9,
"windowEnd": 11
},
"output": {
"eligibleDuration": 2,
"surveyShare": 0.5
}
}Limitations and assumptions
- Times share units and origin; a supplied window does not establish actual basking, detection conditions, or a safe handling opportunity.
- 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 the complete survey design, environmental conditions, detection methods, and appropriate wildlife protocols.
References
Similar or alternative tools
- Amphibian Call Window Share
Return callDuration/windowDuration.
- Amphibian Survey Support Share
Sum eligible time and time satisfying all flags, then divide or return zero with defined false for no eligible time.