EUNIS Habitat Classification

The EUNIS habitat classification is a comprehensive pan-European system for habitat identification < https://www.eea.europa.eu/data-and-maps/data/eunis-habitat-classification-1>. This is an R data package providing the EUNIS classification system. The classification is hierarchical and covers all types of habitats from natural to artificial, from terrestrial to freshwater and marine. The habitat types are identified by specific codes, names and descriptions and come with schema crosswalks to other habitat typologies.

eunis.habitats

{eunis.habitats} is an R data package that provides the EUNIS Habitat Classification in tidy format.

Installation

Install from CRAN:

install.packages("eunis.habitats")

You can install the development version of {eunis.habitats} like so:

# install.packages("remotes")
remotes::install_github("ramiromagno/eunis.habitats")

EUNIS classifications

There are four EUNIS classifications included in the one single data set eunis_habitats, namely:

EUNIS classification from 2007, revised in 2012.
EUNIS marine classification from 2019
EUNIS marine classification from 2022
EUNIS terrestrial classification from 2021

For example, to access the marine habitats classified according to EUNIS revision of 2022:

subset(eunis_habitats, classification == "EUNIS_M_2022")
#> # A tibble: 1,942 × 8
#>    classification section version group   level code    name         description
#>    <chr>          <chr>   <chr>   <chr>   <int> <chr>   <chr>        <chr>      
#>  1 EUNIS_M_2022   marine  2022    benthic     1 M       Marine bent… "Marine be…
#>  2 EUNIS_M_2022   marine  2022    benthic     2 MA1     Littoral ro… "Littoral …
#>  3 EUNIS_M_2022   marine  2022    benthic     3 MA11    Arctic litt… "Arctic li…
#>  4 EUNIS_M_2022   marine  2022    benthic     3 MA12    Atlantic li… "Atlantic …
#>  5 EUNIS_M_2022   marine  2022    benthic     4 MA121   Lichens or … "Lichen co…
#>  6 EUNIS_M_2022   marine  2022    benthic     5 MA1211  Yellow and … "Vertical …
#>  7 EUNIS_M_2022   marine  2022    benthic     5 MA1212  Prasiola st… "Exposed t…
#>  8 EUNIS_M_2022   marine  2022    benthic     5 MA1213  Verrucaria … "Bedrock o…
#>  9 EUNIS_M_2022   marine  2022    benthic     6 MA12131 Verrucaria … "The litto…
#> 10 EUNIS_M_2022   marine  2022    benthic     6 MA12132 Verrucaria … "Upper lit…
#> # ℹ 1,932 more rows

Check the documentation for more details: ?eunis_habitats.

Crosswalks (mapping of habitat codes)

From EUNIS 2012 to EUNIS Marine 2022:

crosswalk(
  code = c("A3.4", "A3.5"),
  from = "EUNIS_2012",
  to = "EUNIS_M_2022",
  unnest = TRUE
)
#> # A tibble: 64 × 2
#>    eunis_2012_code eunis_m_2022_code
#>    <chr>           <chr>            
#>  1 A3.4            MA133            
#>  2 A3.4            MA134            
#>  3 A3.4            MA135            
#>  4 A3.4            MA136            
#>  5 A3.4            MA137            
#>  6 A3.4            MB13             
#>  7 A3.4            MB131            
#>  8 A3.4            MB1311           
#>  9 A3.4            MB1312           
#> 10 A3.4            MB1313           
#> # ℹ 54 more rows

From EUNIS Marine 2019 to EUNIS 2012:

crosswalk(
code = c("MH152", "MH2331"),
from = "EUNIS_M_2019",
to = "EUNIS_2012",
unnest = TRUE
)
#> # A tibble: 2 × 2
#>   eunis_m_2019_code eunis_2012_code
#>   <chr>             <chr>          
#> 1 MH152             A7.12          
#> 2 MH2331            A7.231

From EUNIS Marine 2022 to the European Red List of Habitats:

crosswalk(
code = c("MH152", "MH2331", "MA146", "MD55"),
from = "EUNIS_M_2022",
to = "RL",
unnest = TRUE
)
#> # A tibble: 4 × 2
#>   eunis_m_2022_code rl_code
#>   <chr>             <chr>  
#> 1 MH152             <NA>   
#> 2 MH2331            <NA>   
#> 3 MA146             A1.1xx 
#> 4 MD55              A5.27

From EUNIS Marine 2019 to Habitats Directive Annex I:

crosswalk(
code = c("M", "MA1", "MA11", "MA12"),
from = "EUNIS_M_2019",
to = "Annex_I", unnest = TRUE
)
#> # A tibble: 7 × 2
#>   eunis_m_2019_code annex_i_code
#>   <chr>             <chr>       
#> 1 M                 <NA>        
#> 2 MA1               <NA>        
#> 3 MA11              <NA>        
#> 4 MA12              8330        
#> 5 MA12              1160        
#> 6 MA12              1170        
#> 7 MA12              1130