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DataREADME.rmd
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# Exposure and sensitivity of terrestrial vertebrates to biological invasions worldwide.
[https://doi.org/10.5061/dryad.31zcrjdvh](https://doi.org/10.5061/dryad.31zcrjdvh)
Data for reproducing the results obtained by Marino et al. in the paper **Exposure and sensitivity of terrestrial vertebrates to biological invasions worldwide**.
## Description of the data and file structure
The data are divided into four main files related to the exposure and sensitivity of birds, mammals, and reptiles to biological invasions, as well as data completeness associated with these two metrics. We also provide one additional spatial file that for mapping the results and get the associated cells with all metric values.
### 1. Exposure to 304 IAS
Data file BIVA_10_expo_norm_110_km.xlsx contains the exposure components and final values for each cell with at least one established alien species occurrence, for three normalization methods (4 sheets x 6,629 lines x 16 columns).
| Column name | Description |
| :--------------------- | :----------------------------------------------------------------------------------------- |
| grid\_id | ID of the cell in the spatial file of 110km land cell units |
| SR\_tot\_ias\_max\_min | Alien species richness normalized with max-min method |
| med\_range\_max\_min | Median alien range normalized with max-min method |
| med\_ib\_max\_min | Median alien impact breadth normalized with max-min method |
| expo\_max\_min | Final exposure as sum of components with max-min normalization method |
| expo\_prod\_max\_min | Alternative exposure as product of components with max-min normalization method |
| SR\_tot\_ias\_log | Alien species richness normalized with log-transformed method |
| med\_range\_log | Median alien range normalized with log-transformed method |
| med\_ib\_log | Median alien impact breadth normalized with log-transformed method |
| expo\_log | Alternative exposure as sum of components with log-transformed normalization method |
| expo\_prod\_log | Alternative exposure as product of components with log-transformed normalization method |
| SR\_tot\_ias\_rank | Alien species richness normalized with cumulative ranking method |
| med\_range\_rank | Median alien range normalized with cumulative ranking method |
| med\_ib\_rank | Median alien impact breadth normalized with cumulative ranking method |
| expo\_rank | Alternative exposure as sum of components with cumulative ranking normalization method |
| expo\_prod\_rank | Alternative exposure as product of components with cumulative ranking normalization method |
### 2. Sensitivity of birds, mammals, and reptiles
The data file BIVA_13_sensit_norm_110_km.xlsx contains the sensitivity values for birds, mammals, and reptiles for each cell for three normalization methods (3 sheets x 16,052 lines x 4 columns).
| **Column name** | **Description** |
| :------------------- | :---------------------------------------------------------------- |
| cell\_id | ID of the cell in the spatial file of 110km land cell units |
| SR\_ias\_a\_max\_min | Final sensitivity metric normalized with max-min method |
| SR\_ias\_a\_log | Alternative sensitivity normalized with log-transformation method |
| SR\_ias\_a\_rank | Alternative sensitivity normalized with cumulative ranking method |
### 3. Completeness for exposure
The data file BIVA_20_expo_completeness_110_km.xlsx contains the completeness values associated with the exposure of all taxa for each cell (17,258 lines x 7 columns).
| **Column name** | **Description** |
| :----------------- | :---------------------------------------------------------------------------- |
| grid\_id | ID of the grid cell in the spatial file of 110km land cell units |
| log\_dens | Log-transformed density of GBIF records for vertebrates from Meyer et al 2015 |
| DB\_and\_GRIIS | Proportion of alien species in both our database and the GRIIS checklist (ed) |
| DB\_GRIIS\_or\_not | Proportion of alien species in our database compared to total alien pool |
| norm\_dens | Normalized density of GBIF records for vertebrates from Meyer et al 2015 (se) |
| comp\_se\_sum | Alternative completeness (sum of se and ed) |
| comp\_se\_product | Final completeness for exposure (product of se and ed) |
### 4. Completeness for sensitivity
The data file BIVA_20_sensi_completeness_110_km.xlsx contains the completeness values associated with the sensitivity of birds, mammals, and reptiles for each cell (3 sheets x 16,052 lines x 10 columns).
| **Column name** | **Description** |
| :-------------- | :---------------------------------------------------------------------------------- |
| cell\_id | ID of the cell in the spatial file of 110km land cell units |
| SR\_tot | Total species richness of the given taxon |
| SR\_ias\_a | Number of species threatened by IAS in the IUCN RedList |
| SR\_ias\_t | Number of species threatened by IAS and at high extinction risk in the IUCN RedList |
| SR\_ias\_nt | Number of species threatened by IAS and at low extinction risk in the IUCN RedList |
| SR\_dd\_iasa | Number of species threatened by IAS and Data Deficient in the IUCN RedList |
| SR\_dd\_all | Number of species Data Deficient in the IUCN RedList |
| se | Sampling effort for sensitivity |
| ed | Effective detection for sensitivity |
| comp\_prod | Completeness for sensitivity (product of se and ed) |
### 5. Land cell units (spatial file)
The file Grid_110_km.shp contains the spatial information associated with all the cells for which we calculated exposure, sensitivity, and completeness. The associated dataset contains a column "grid_id" for linking with exposure data, and a column "cell_id" for linking with sensitivity data.
## Sharing/Access information
Data and code supporting this article can also be found at:
* [https://github.com/claramarino/BIVA_framework](https://github.com/claramarino/BIVA_framework)
Raw data was derived from the following sources:
* IUCN Red List of Threatened species: [https://www.iucnredlist.org/](https://www.iucnredlist.org/)
* Global Biodiversity Information Facility: [https://www.gbif.org/](https://www.gbif.org/)
* Global Register of Introduced and Invasive Species
## Code/Software
All analyses were conducted using R software version 4.2.2 (R Core Team, 2022). The associated scripts are provided in the GitHub repository.