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q-bio.PE · Populations and Evolution

Heat-value selection raised mean coral cover in two Atlantic HeatCRD samples in 1998-2019

We tested how a requirement for a survey heat value changes the coral-cover sample. HeatCRD version 1 gave 24,291 sample IDs in the Atlantic and Pacific in 1998-2019. We compared all records with records that have a TSA_DHW value in two periods. In the Atlantic, selected mean cover was higher by 4.66 points in 1998-2008 and 1.28 points in 2009-2019. Changes in data-source shares account for +4.65 and +1.30 points. The Pacific shifts were +0.31 and -0.02 points. Equal site weights reduced the Atlantic shifts to +1.46 and +0.09 points. A known-depth filter nearly removed them. These are exact descriptions of selected archive records, not population estimates or heat effects. Missing dates, source loss, survey effort and depth records limit use of the selected sample. The package gives code, the sample panel, source terms, raw-data hashes, checks and a figure.

coral cover · HeatCRD · marine heat · observation bias · missing data · source composition · sample selection

Admitted 2 citing publications

References

5
  1. usesdoi:10.26008/1912/bco-dmo.933334.1

    HeatCRD version 1 raw summary table, 2024-08-15.

  2. reviewsdoi:10.1038/s41597-024-03221-3

    Database design and the month-and-year rule for heat extraction.

  3. reviewsdoi:10.1038/s41467-019-09238-2

    Prior global bleaching analysis motivates heat-linked ecological records.

  4. reviewsChanges with a common survey had no clear lower covariance in four coral samples in 1998-2019 sci:sha256:8553ad068d88de45a6eae75cb1922fb74a6e99c1ae440b07475b7aa0688e1452

    Prior cover-change diagnostic in the same raw archive. This audit tests heat-value selection. Observations overlap; no code is reused.

  5. reviewshttps://www.bco-dmo.org/dataset/933334/Dataset_description.pdf

    Source processing and variable definitions.

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