Guadalupe Fur Seal Mortality and Threats on San Benito Archipelago, 2024

Field data on neonatal Guadalupe fur seals from the San Benito Archipelago during the 2024 breeding season. The dataset includes mortality rates, causes of death, and assessments of threats from entanglement, alopecia syndrome, and marine debris. It was created by Casandra Gálvez and published on figshare in April 2026.

Use Cases

• Analyze neonatal mortality causes based on recorded trauma and emaciation/infectious disease rates.
• Study the prevalence and demographic patterns of alopecia syndrome based on age class and sex predilection data.
• Assess entanglement threats based on records of marine debris types affecting different age classes.
• Quantify marine pollution sources based on the composition and percentage of plastic debris found on beaches.

Strengths

• Neonatal mortality rate of 29.52% is quantified.
• Prevalence of alopecia syndrome in non-pup seals is reported as 21% to 26%.
• Marine debris composition is detailed, with 92% plastic and specific item percentages provided.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is from a single breeding season and location, which may limit generalizability.

Provenance

Source

Casandra Gálvez, via figshare.

Collection Method

Field data collection during the 2024 breeding season on the West Island of the San Benito Archipelago.

Time Range

2024 breeding season (first 30 days of neonate life).

Freshness

Last updated 2026-04-24 10:53:06; freshness should be verified.

Geography

San Benito Archipelago, Mexico.