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Food Web Link Direction Tag

Orient one explicitly identified food-web link from resource to consumer without inferring feeding relationships.

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Description

Assign supplied food-web resource and consumer labels under a direction flag.

Ecological records need explicit sampling units, detection states, effort denominators, interval geometry and trait/abundance bases. Nondetection differs from absence, and shared sampling-unit labels do not alone diagnose pseudoreplication. A one-axis overlap or single weighted contribution is only a limited component of a broader ecological analysis.

Assign supplied food-web resource and consumer labels under a direction flag.

When to use this tool

Use Food Web Link Direction Tag when you already have firstTaxon, secondTaxon, firstIsResource and need to assign supplied food-web resource and consumer labels under a direction flag.

How to use the tool and how it works

  1. Enter firstTaxon, secondTaxon, firstIsResource. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read resource, consumer. Use the output convention below.

Require both taxon labels nonempty; firstIsResource selects the first as resource and second as consumer, otherwise reverse them.1

Input fieldMeaning and unitsAccepted input
firstTaxonFirst TaxonRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
secondTaxonSecond TaxonRequired. Text; minimum UTF-16 length 1; maximum UTF-16 length 8192.
firstIsResourceFirst Is ResourceRequired. Boolean.
Output fieldInterpretationReturned shape
resourceResourceRequired. Text; maximum UTF-16 length 8192.
consumerConsumerRequired. Text; maximum UTF-16 length 8192.
json
{
  "input": {
    "firstTaxon": "Plant A",
    "secondTaxon": "Insect B",
    "firstIsResource": true
  },
  "output": {
    "resource": "Plant A",
    "consumer": "Insect B"
  }
}

Limitations and assumptions

  • No taxonomy, trophic interaction, evidence or edge-direction convention is independently verified.
  • 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.

Alternative or Complementary methods

Review original survey records, sampling design, specimens and calibration definitions for an ecological conclusion. Use complete detection, population, community or process models as appropriate; local count rates and source labels do not infer unobserved states or ecological mechanisms.

References

  1. Calculation and input contract: ecology/food-web-link-direction-tag — tool.io

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