Data from: A quantitative analysis to detect mass mortality events (wrecks) in Procellariiformes
Data files
Jun 30, 2026 version files 1.41 MB
Abstract
This dataset contains standardized records of stranded Procellariiformes used to investigate mass mortality events along the Brazilian coastline. The records were collected through the Brazilian Beach Monitoring Program between 2017 and 2024. Each record corresponds to a single stranded individual and includes sampling date, year and month, geographic region, Brazilian state and city, latitude and longitude, taxonomic identification (family and species), sex (when available), life stage (when available), animal condition (live or dead), and carcass decomposition stage. The dataset provides the raw observations used in the associated manuscript. It may be reused for studies of seabird strandings, mortality patterns, species distributions and spatial and temporal analyses. Taxonomic names and geographic information were standardized prior to analysis, while missing values are indicated as "NA" where information was unavailable. The taxonomy used follows the definitions provided by the PMP implementing institutions with the Integrated Taxonomic Information System (ITIS) as reference.
Dataset DOI: 10.5061/dryad.cc2fqz6nc
Description of the data and file structure
Description
This dataset contains the Procellariiformes stranding records used in the analyses presented in the associated manuscript. Some information is not available (NA) due to methodological inconsistencies that prevented reliable classification. The geographic coordinates included in this dataset represent the locations where stranded seabirds were recovered during beach monitoring surveys. These coordinates do not correspond to breeding colonies, nesting sites, roosting areas, or other sensitive habitats, nor do they represent the natural distribution of the species. They indicate only the locations where carcasses were found on beaches.
Files and variables
File: Procellariiformes_Brazil_LauraBaes_et_al._2026.xlsx
| Variable | Description |
|---|---|
| ID | Unique record identifier. |
| Date | Date of the stranding record (DD-MM-YYYY). |
| Year | Year of the stranding record. |
| Month | Month of the stranding record (1 to 12). |
| Region | Geographic region of Brazil where the stranding occurred. |
| State | Brazilian state where the stranding occurred. |
| City | Municipality where the stranding occurred. |
| Lat | Latitude of the stranding location. Few locations are not available - NA. |
| Long | Longitude of the stranding location. Few locations are not available - NA. |
| Family | Taxonomic family of the stranded bird. |
| Species | Scientific name of the stranded species. |
| Sex | Recorded sex of the individual (e.g., male, female, not available - NA). |
| Stage | Life stage of the individual (e.g., juvenile, adult, not available - NA). |
| Animal | Condition of the animal at the time of recording (e.g., alive or dead). |
| Carcass | Carcass decomposition condition. |
| n | Number of individuals represented by the record. |
Access information
Other publicly accessible locations of the data:
- The original stranding records are publicly available through the Sistema de Informação de Monitoramento da Biota Aquática (SIMBA): https://simba.petrobras.com.br/
Data were derived from the following sources:
- Brazilian Beach Monitoring Programs (PMPs) Sistema de Informação de Monitoramento da Biota Aquática (SIMBA), administered within the Brazilian federal environmental licensing program coordinated by IBAMA. The dataset deposited in Dryad consists of a curated analytical subset of the publicly available SIMBA database, including only Procellariiformes stranding records collected between 2017 and 2024.