What factors influence the rediscovery of lost tetrapod species? Appendix G: Variables tested for their influence on rediscovery
Cite this dataset
Evans, Thomas et al. (2024). What factors influence the rediscovery of lost tetrapod species? Appendix G: Variables tested for their influence on rediscovery [Dataset]. Dryad. https://doi.org/10.5061/dryad.c866t1gdf
Abstract
For the study associated with this dataset, we created a database of lost and rediscovered tetrapod species and identified patterns in their distribution and factors influencing rediscovery. This appendix provides a list of the lost and rediscovered species and all data used to calculate 11 variables (V):
- V1: Taxonomic status - class, order, family, species name, common name;
- V2: Countries / islands occupied by each species;
- V3: The cumulative number of lost and rediscovered species - four columns, (i) last seen date, (ii) rediscovered date, (iii) for rediscovered species, the number of years lost, (iv) for lost species, the number of years lost;
- V4: Time lost (the number of years each species has been lost for);
- V5: Adult body mass (g) of each species;
- V6: Habitat breadth - the number of broad habitat types occupied by each species;
- V7: Habitat type - the broad habitat types occupied by each species;
- V8: Small island / mainland - whether a species occupies a small island (< 20,000 km2) or a mainland location (including islands > 20,000km2) (0 = mainland, 1 = small island);
- V9: Threats - the different threats associated with each species;
- V10: Human development - the highest level of human development across the range of each species, measured using the Human Development Index (HDI);
- V11: Survey effort - the level of effort invested in searching for each species (1 = low, 2 = medium, 3 = high, 4 = very high). See Supporting Information (Table S1) for the methods used to calculate this variable.
README: What factors influence the rediscovery of lost tetrapod species? Appendix G: Variables tested for their influence on rediscovery
https://doi.org/10.5061/dryad.c866t1gdf
Data associated with 11 variables tested for their influence on rediscovery.
Description of the data and file structure
This Excel spreadsheet includes the data used to calculate 11 variables for each of 1280 species:
- V1: Taxonomic status (class, order, family, species name, common name)
- V2: Countries / islands of occupancy
- V3: The cumulative number of lost and rediscovered species from different classes within different decades (four columns: (i) last seen date, (ii) rediscovered date, (iii) the number of years lost for rediscovered species, (iv) the number of years lost for lost species);
- V4: Time lost (years);
- V5: Body mass (g);
- V6: Habitat breadth (the number of broad habitats occupied);
- V7: Habitat type (the types of broad habitats occupied);
- V8: Small island / mainland (whether the species occupied a small island (< 20,000km2) or mainland location, including islands > 20,000km2) (0 = mainland; 1 = small island);
- V9: Threats (the different threat types associated with a species);
- V10: Human development (the highest level of human development across the range of a species, measured using the Human Development Index (HDI));
- V11: Survey effort (the amount of effort invested in searching for a species: 1 = low, 2 = medium, 3 = high, 4 = very high) (see Supporting Information (Table S1) for details on how this variable was calculated).
Methods
Please refer to the published paper associated with this dataset, which provides a detailed description of the data collection methods.
Funding
Alexander von Humboldt Foundation
Israel Science Foundation, Award: 406/19
Pontificia Universidad Católica del Ecuador
Leibniz Institute of Freshwater Ecology and Inland Fisheries, Award: Competition project ‘Freshwater Megafauna Futures’