Global Freshwater Fish Functional Diversity and Climate Change Threats

Fish trait data for up to 11,425 species and geospatial projections of functional diversity metrics under climate change scenarios. The dataset supports a paper from Leiden University, providing supplementary information on traits like relative head length and trophic level. Geospatial layers include functional richness and divergence under historical and future warming levels up to 4.5°C.

Use Cases

• Projecting functional diversity loss for freshwater fish under different warming scenarios based on provided geospatial layers.
• Analyzing relationships between fish morphological traits (e.g., relative head length, body depth) and ecological function.
• Modeling species richness and functional metrics under assumptions of no dispersal versus maximal dispersal.
• Comparing imputed versus removed trait data methodologies for species coverage.

Strengths

• Includes trait data for 11,425 fish species when using imputed values.
• Provides geospatial data at a spatial resolution of approximately 0.0833 degrees.
• Contains projections for four specific warming levels: 1.5°C, 2.0°C, 3.2°C, and 4.5°C.
• Offers data under two distinct biological dispersal assumptions.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count for the primary trait tables is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Leiden University, author Laura Scherer, via paperswithcode.

Collection Method

Supplementary data for a research paper; likely compiled from literature and global species databases.

Geography

Global, with a spatial extent of -180 to 180 degrees longitude and -60 to 85 degrees latitude.