SIA-BRA: Carbon and Nitrogen Stable Isotope Ratios of Brazilian Wildlife

21,804 non-captive wildlife specimens from Brazilian biomes and coastal areas have their carbon and nitrogen stable isotope ratios measured. The compilation includes 13,881 vertebrates and 7,923 invertebrates across 1,157 species, divided among terrestrial, freshwater, oceanic, and estuarine habitats. Thaís Rovere Diniz‐Reis from Universidade de São Paulo compiled this data, which is supplied as delimited text files.

Use Cases

• Modeling food web structure and trophic levels based on stable isotope ratios.
• Tracing animal resource use and habitat connectivity across terrestrial, freshwater, and marine biomes.
• Analyzing isotopic niche partitioning among the 1,157 documented species.
• Studying biogeochemical cycles by comparing isotope signatures across different animal phyla and classes.

Strengths

• Contains isotopic data for 21,804 individual wildlife specimens.
• Covers a broad taxonomic range with 11 phyla, 36 classes, and 1,157 species.
• Provides habitat breakdown for specimens: terrestrial (30%), freshwater (27%), oceanic (40%), and estuarine (4%).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.
• Data may reflect geographic bias inherent to its focus on Brazilian biomes and coastal areas.

Provenance

Source

Universidade de São Paulo

Collection Method

Compilation of isotopic measurements from non-captive wildlife specimens.

Geography

Brazilian biomes and coastal-marine areas