Measuring biodiversity: research into approaches

This report considers methodologies for measuring biodiversity at site-level for use in Scotland.


Annex 5 Biodiversity Metric 3.1

Rules and Principles underpinning Metric 3.1

Metric 3.1 provides a means of informing decision making. However, the metric has its limitations, and it is important that use adheres to the following principles and rules as outlined in the accompanying Users Guide (Panks et al. 2022).

Principles

Principle 1: The metric does not change the protection afforded to biodiversity. Existing levels of protection afforded to protected species and habitats are not changed by use of this or any other metric. Statutory obligations will still need to be satisfied.

Principle 2: Biodiversity metric calculations can inform decision-making where application of the mitigation hierarchy and good practice principles conclude that compensation for habitat losses is justified.

Principle 3: The metric's biodiversity units are only a proxy for biodiversity and should be treated as relative values. While it is underpinned by ecological evidence the units generated by the metric are only a proxy for biodiversity and, to be of practical use, it has been kept deliberately simple. The numerical values generated by the metric represent relative, not absolute, values.

Principle 4: The metric focuses on typical habitats and widespread species; important or protected habitats and features should be given broader consideration.

  • Protected and locally important species needs are not considered through the metric, they should be addressed through existing policy and legislation.
  • Impacts on protected sites and irreplaceable habitats are not adequately measured by this metric. They will require separate consideration which must comply with existing national and local policy and legislation. Data relating to these can be entered into the metric, to give an indicative picture of the biodiversity value of the habitats present on a site, but this should be supported by bespoke advice.

Principle 5: The metric design aims to encourage enhancement, not transformation, of the natural environment. Proper consideration should be given to the habitats being lost in favour of higher-scoring habitats, and whether the retention of less distinctive but well-established habitats may sometimes be a better option for local biodiversity.

  • Habitat created to compensate for loss of natural or semi-natural habitat should be of the same broad habitat type (e.g. new woodland to replace lost woodland) unless there is a good ecological reason to do otherwise (e.g. to restore a heathland habitat that was converted to woodland for timber in the past).
  • Although the metric does not explicitly consider the biodiversity value provided by individual species, consideration should be given to locally relevant species interests when creating or enhancing habitats.

Principle 6: The metric is designed to inform decisions, not to override expert opinion. Management interventions should be guided by appropriate expert ecological advice and not just the biodiversity unit outputs of the metric. Ecological principles still need to be applied to ensure that what is being proposed is realistic and deliverable based on local conditions such as geology, hydrology, nutrient levels, etc. and the complexity of future management requirements.

Principle 7: Compensation habitats should seek, where practical, to be local to the impact. They should aim to replicate the characteristics of the habitats that have been lost, taking account of the structure and species composition that give habitats their local distinctiveness.

  • Where possible compensation habitats should contribute towards nature recovery in England by creating 'more, bigger, better and joined up' areas for biodiversity.
  • Through the strategic significance and spatial risk factors the biodiversity metric 3.1 places greater reward for habitat creation where it is strategically important and locally relevant.

Principle 8: The metric does not enforce a mandatory minimum 1:1 habitat size ratio for losses and compensation but consideration should be given to maintaining habitat extent and habitat parcels of sufficient size for ecological function. A difference can occur because of a difference in quality between the habitat impacted and the compensation provided. For example, if a habitat of low distinctiveness is impacted and is compensated for by the creation of habitat of higher distinctiveness or better condition, the area needed to compensate for losses can potentially be less than the area impacted. The metric calculates losses and gains by size as well as by biodiversity unit value or percentage. Note: consideration should be given to whether reducing the area or length of habitat provided as compensation is an appropriate outcome.

Rules

Rule 1: Where the metric is used to measure biodiversity change, biodiversity unit values need to be calculated both prior to the intervention and post-intervention for all parcels of land / linear features affected.

Rule 2: Compensation for habitat losses can be provided by creating new habitats, or by restoring or enhancing existing habitats. Measures to enhance existing habitats must provide a significant and demonstrable uplift in distinctiveness and/or condition to record additional biodiversity units.

Rule 3: 'Trading down' must be avoided. Losses of habitat are to be compensated for on a 'like for like' or 'like for better' basis. New or restored habitats should aim to achieve a higher distinctiveness and/or condition than those lost. Losses of irreplaceable or very high distinctiveness habitat cannot adequately be accounted for through the metric.

Rule 4: Biodiversity units generated by biodiversity metric 3.1 are unique to this metric and cannot be compared to unit outputs from versions 3.0, 2.0, the original Natural England metric, or any other biodiversity metric. Furthermore, the three types of biodiversity units generated by this metric (for area, hedgerow and river habitats) are unique and cannot be summed, traded or converted.

Rule 5: It is not the area/length of habitat created that determines whether ecological equivalence or better has been achieved but the net change in biodiversity units. Risks associated with creating or enhancing habitats mean that it may be necessary to create or enhance a larger area of habitat than that lost, to fully compensate for impacts on biodiversity.

Rule 6: Deviations from the published methodology of biodiversity metric 3.1 need to be ecologically justified and agreed with relevant decision makers. While the methodology is expected to be suitable in the majority of circumstances it is recognised that there may be exceptions. Any local or project-specific adaptations of the metric must be transparent and fully justified.

Multiplier categories and values

Table 20: Overview of the different multipliers used for components of Metric 3.1 highlighting levels and scores given to each level.

Component

Multiplier categories and numerical values

Distinctiveness

Very High (8)

High (6)

Medium (4)

Low (2)

Very low (0)

Condition

Good (3)

Fairly Good (2.5)

Moderate (2)

Fairly Poor (1.5)

Poor (1)

N/A

Strategic multipliers

High (1.15)

Medium (1.1)

Low (1)

Technical Difficulty Creation

Low (1)

Medium (0.67)

High (0.33)

Very High (0.1)

Technical Difficulty Enhancement

Low (1)

Medium (0.67)

High (0.33)

Spatial risk terrestrial

Compensation inside LPA or NCA, or deemed to be sufficiently local, to site of biodiversity loss (1)

Compensation outside LPA or NCA of impact site but in neighbouring LPA or NCA (0.75)

Compensation outside LPA or NCA of impact site and beyond neighbouring LPA or NCA (0.5)

Spatial risk rivers and streams

Within the waterbody (1)

Outside of the waterbody (0.75)

Outside of catchment (0.5)

Spatial risk intertidal habitats

Intertidal habitats - Compensation inside same Marine Plan Area, or deemed to be sufficiently local, to site of biodiversity loss (1)

Intertidal habitats - Compensation outside same Marine Plan Area but in neighbouring Marine Plan Area (0.75)

Intertidal habitats - Compensation outside Marine Plan Area of impact site and beyond neighbouring Marine Plan Area (0.5)

Scenario testing: Woodland creation

Table 21: Scenario testing - Example of where multipliers could incentivise the creation of less distinctive or poorer quality woodland habitats (example for on-site habitat creation).

Habitat

Area

Distinctiveness

Condition

Strategic significance

Time to target condition (years)

Temporal multiplier

Difficulty multiplier

Biodiversity units

Other woodland; broadleaved

2

Medium

4

Good

3

Formally identified in local strategy 1.15

30+

0.320

Low

1

8.83

Other woodland; broadleaved

2

Medium

4

Moderate

2

Formally identified in local strategy 1.15

15

0.586

Low

1

10.78

Other woodland; broadleaved

2

Medium

4

Fairly Poor

1.5

Formally identified in local strategy 1.15

7

0.779

Low

1

10.75

Lowland mixed deciduous woodland

2

High

6

Moderate

2

Formally identified in local strategy 1.15

30+

0.320

High

0.33

2.91

Scenario testing: Conversion of Coniferous Woodland to a Raised bog: Enhancement versus creation

Enhancement of Other Coniferous woodland into Lowland raised bog. Showing habitats units delivered of 4.32.

Removal of coniferous woodland, losing 2.00 habitat units. Creation of lowland raised bog, creating 0.77 habitat units. Resulting in a net loss of 1.23 habitat units.

Figure 18: Scenario testing - example of where enhancement to new habitat results in a greater number of units that the removal and then creation of a new habitat (forest to bog example).

Figure 19: Results from Stakeholder Polls. An administrative error meant that the first poll was not distributed to the agricultural sector

Correspondence tables: EUNIS, UK Hab and Metric 3.1 habitat classifications

Grasslands & Lands Dominated by Forbs, Mosses Or Lichens

EUNIS Level 2

EUNIS Level 3

EUNIS Level 4

EUNIS Level 5

EUNIS Level 6

UK Hab code

DEFRA Biodiversity Metric habitat

E1 Dry Grassland

(~1000 Ha)

G1 and g2

Lowland dry acid grassland

Upland acid grassland

Bracken

Upland calcareous grassland

Lowland calcareous grassland

E1.2 Perennial calcareous grassland and basic steppes

G2

Lowland Calcareous grassland

E1.26 Sub-Atlantic semi-dry calcareous grassland (CG2 CG7 CG10*) [H6210]

G2a5 or gsb7

Lowland Calcareous grassland

E1.7 Closed non-Mediterranean dry acid and neutral grassland

g1a or g1b

Lowland dry acid grassland

Upland dry acid grassland

E1.71 Nardus stricta swards (U5*)

g1b6

Upland dry acid grassland

E1.72 Agrostis - Festuca grassland

g1a or g1b

Lowland dry acid grassland

Upland dry acid grassland

E1.72# Species-rich Nardus grassland, on siliceous substrates in mountain areas (CG10* CG11 U4c U5c) [H6230]

G2b6

Upland calcareous grassland

E1.72x Other Agrostis - Festuca grassland (U4* CG10*)

G2b or g1b or g1a

Upland calcareous grassland

Upland acid grassland

Lowland dry acid grassland

E1.73 Deschampsia flexuosa grassland (U2)

G1b6

Upland acid grassland

E1.9 Open non-Mediterranean dry acid and neutral grassland, including inland dune grassland

g1a

Lowland dry acid grassland

E1.92 Perennial open siliceous grassland (U1*)

g1a6

Lowland dry acid grassland

E1.B Heavy-metal grassland

s1c

Sparsely vegetated land – Calaminarian grassland

E1.B1 Atlantic heavy-metal grassland (CG10* CG13* OV37 non-NVC) [H6130]

s1c5

Sparsely vegetated land – Calaminarian grassland

E2 Mesic grasslands

(~1179000 Ha)

g1 or g2 or g3 or g4

Acid grassland

Calcareous grassland

Neutral grassland

Modified grassland

E2.1 Permanent mesotrophic pastures and aftermath-grazed meadows

g1 or g2 or g3 or g4

Acid grassland

Calcareous grassland

Neutral grassland

Modified grassland

E2.11 Unbroken pastures (MG5 MG6*)

g1 or g2 or g3 or g4

Acid grassland

Calcareous grassland

Neutral grassland

Modified grassland

E2.111 Ryegrass pastures (MG6*)

G4

Modified grassland

E2.112 Atlantic Cynosurus-Centaurea pastures (MG5)

G3c6

Other neutral grassland

E2.12 Ditch-broken pastures (MG6*)

g3c5 secondary code 25

Other neutral grassland

E2.13 Abandoned pastures (non-NVC)

g3c5 or g3c8

Other neutral grassland

E2.2 Low and medium altitude hay meadows

g3

Neutral grassland

E2.21 Atlantic hay meadows (MG1 MG2)

g3c (g3c5 if Arrhenatherum dominated)

Other neutral grassland

E2.24 Boreal and sub-boreal meadows (MG3) [H6520]

g3c

Other neutral grassland

E2.6 Agriculturally-improved, re-seeded and heavily fertilised grassland, including sports fields and grass lawns (MG7)

g4 or c1b

Modified grassland

Cropland – Temporary grass and clover leys

E2.8 Trampled mesophilous grasslands with annuals (OV12, OV19-23)

secondary code 17

Sparsely vegetated land – Ruderal/Ephemeral

E3 -Seasonally wet and wet grasslands

secondary code 119

E3.4 Moist or wet eutrophic and mesotrophic grassland

g3 or g4 119

Neutral grassland

Modified grassland

E3.41 Atlantic and sub-Atlantic humid meadows (M22 M23b MG8 MG9)

g3c8 14 15

Other neutral grassland

E3.42 Juncus acutiflorus meadows (M23a)

g3c8 14 15

Other neutral grassland

E3.44 Flood swards and related communities (MG10-13 OV28)

g3c8 14 15

Other neutral grassland

E3.5 Moist or wet oligotrophic grassland

E3.51 Molinia caerulea meadows and related communities

f2b

Wetland – Purple moor grass and rush pasture

E3.511 Calcicline purple moorgrass meadows (M26) [H6410]

f2b5

Wetland – Purple moor grass and rush pasture

-E3.512 Acidocline purple moorgrass meadows (M25*)

g1b6

Upland acid grassland

E3.52 Heath Juncus meadows and humid Nardus stricta swards (U5b U6)

g1b6

Upland acid grassland

E4 Alpine and subalpine grassland

(~531000 Ha)

g

Grassland

E4.1 Vegetated snow-patch

secondary code 126

E4.11 Boreo-alpine acidocline snow-patch grassland and herb habitats

g1b secondary code 126

Upland acid grassland

E4.115 Boreal moss snowbed communities

g1b secondary code 126 176

Upland acid grassland

E4.115# Polytrichastrum- Kiaeria snowbed (U11) [H6150*]

g1b5

Upland acid grassland

E4.115x Rhytidiadelphus-Deschampsia snowbed (U13b)

g1b6 secondary code 126 176

Upland acid grassland

E4.116 Boreo-alpine Deschampsia- Anthoxanthum communities (U13a)

g1b6 secondary code 126

Upland acid grassland

E4.117 Boreo-alpine herb-rich acid snowbed communities (U14) [H6150*]

g1b5 secondary code126

Upland acid grassland

E4.12 Boreo-alpine calcicline snow-patch grassland and herb habitats (CG12) [H6170*]

g2b5 secondary code 126

Upland calcareous grassland

E4.12€ Alpine and subalpine calcareous grasslands (CG12 CG13* CG14) (includes E4.12, F2.29#1) [H6170]

g2b5 secondary code 126

Upland calcareous grassland

E4.14 Boreo-alpine fern snowbed grassland (U18*) [H8110*]

s1a5

Sparsely vegetated land – Inland rock outcrop and scree habitats

E4.2 Moss and lichen dominated mountain summits, ridges and exposed slopes

E4.21 Oroboreal Carex bigelowii-Racomitrium moss-heaths (U9-10) [H6150*]

g1b5 secondary code 176

Upland acid grassland

E4.22 Rock pavement lichen communities (non-NVC)

s1a or s1b or s1c or s1d

Sparsely vegetated land - Inland rock outcrop and scree habitats

Sparsely vegetated land - Limestone pavement

Sparsely vegetated land - Calaminarian grasslands

Sparsely vegetated land - Other inland rock and scree

E4.23 Rock pavement, plateau and summital moss heaths (non-NVC)

s1a or s1b or s1c or s1d secondary code 175

Sparsely vegetated land - Inland rock outcrop and scree habitats

Sparsely vegetated land - Limestone pavement

Sparsely vegetated land - Calaminarian grasslands

Sparsely vegetated land - Other inland rock and scree

E4.3 Acid alpine and subalpine grassland

g1b

Upland acid grassland

E4.32 Oroboreal acidocline grassland (U7-8) [H6150*]

g1b5

Upland acid grassland

E4.32€ Siliceous alpine and boreal grasslands (U7-12 U14) (includes E4.115#, E4.117, E4.21, E4.32, F2.11) [H6150]

g1b5

Upland acid grassland

E5 Woodland fringes and clearings and tall forb stands (79000 Ha)

secondary code 16 and/or 165

E5.1 Anthropogenic herb stands

c1 or u1a secondary code 17

Cropland

Urban - Open Mosaic Habitats on Previously Developed Land

E5.2 Thermophile woodland fringes

E5.22 Mesophile fringes (non-NVC)

g1 or g2 or g3

Acid grassland

Calcareous grassland

Neutral grassland

E5.3 Pteridium aquilinum fields

g1c

Grassland - Bracken

E5.31 Sub-Atlantic Pteridium aquilinum fields (U20 W25*)

g1c

Grassland - Bracken

E5.4 Moist or wet tall-herb and fern fringes and meadows

f2

Wetland

E5.41 Screens or veils of perennial tall herbs lining watercourses (non-NVC)

f2d secondary code 16 or 17, 48 (for non-native)

Wetland

Sparsely vegetated land - Ruderal/Ephemeral

E5.42 Tall-herb communities of humid meadows (M27 M28)

f2 or g1 with secondary codes 14 or 15, 16 or 17 150, 178-181, or t2a7 for upper saltmarsh

Wetland

Acid grassland

Sparsely vegetated land - Ruderal/Ephemeral

E5.5 Subalpine moist or wet tall-herb and fern stands

E5.59 Oro-boreal tall-herb communities (U17) [H6430]

s1a9

Grassland - Tall herb communities (H6430)

E5.5B Alpine and subalpine fern stands (U19 non-NVC)

g1b secondary codes 16, 120

Upland acid grassland

E5.5x Luzula sylvatica-Vaccinium myrtillus tall-herb community (U16)

g1b secondary codes 15, 156,

Upland acid grassland

Coastal habitats (B)

EUNIS Level 2

EUNIS Level 3

EUNIS Level 4

EUNIS Level 5

EUNIS Level 6

UK Hab code

Biodiversity Metric habitat

B1 Coastal dunes and sandy shores

s3

Sparsely vegetated land - Coastal sand dunes

Sparsely vegetated land - Coastal vegetated shingle

B1.1 Sand beach driftlines

s3a

Sparsely vegetated land - Coastal sand dunes

B1.12 Middle European sand beach annual communities (SD2* non-NVC)

S3a

Sparsely vegetated land - Coastal sand dunes

B1.2 Sand beaches above the driftline

T2h

B1.21 Unvegetated sand beaches above the driftline

T2h

B1.23 Boreo-arctic sand beach perennial communities (SD5*)

T2h

B1.3 Shifting coastal dunes

S3a

Sparsely vegetated land - Coastal sand dunes

B1.31 Embryonic shifting dunes (SD2* SD4 SD5*) [H2110]

S3a5

Sparsely vegetated land - Coastal sand dunes

B1.32 White dunes (SD5* SD6) [H2120]

S3a6

Sparsely vegetated land - Coastal sand dunes

B1.4 Coastal stable dune grassland (grey dunes)

S3a

Sparsely vegetated land - Coastal sand dunes

B1.41 Northern fixed grey dunes (SD7-8 SD9* SD10-12 CG10*) [H2130*]

S3a7

Sparsely vegetated land - Coastal sand dunes

B1.41€ Fixed dunes with herbaceous vegetation (`grey dunes`) (SD7 SD8 SD9* SD10-12 SD19 CG10*) (includes B1.41, B1.47) [H2130]

S3a7

Sparsely vegetated land - Coastal sand dunes

B1.47 Dune fine-grass annual communities (SD19) [H2130*]

S3a7

Sparsely vegetated land - Coastal sand dunes

B1.4x Species-poor Ammophila-Arrhenatherum dune grassland (SD9* non-NVC)

S3a

Sparsely vegetated land - Coastal sand dunes

B1.5 Coastal dune heaths

S3a

Sparsely vegetated land - Coastal sand dunes

B1.51 Empetrum brown dunes (H11b) [H2140]

S3a8

Sparsely vegetated land - Coastal sand dunes

B1.52 Calluna vulgaris brown dunes (H11a/c H10) [H2150]

S3a9

Sparsely vegetated land - Coastal sand dunes

B1.6 Coastal dune scrub

s3a secondary code10

Sparsely vegetated land - Coastal sand dunes

B1.61 Coastal dune thickets (SD18, W23*)

s3a secondary code10

Sparsely vegetated land - Coastal sand dunes

B1.62 Salix arenaria mats (SD16* SD12*) [H2170]

s3a7 secondary code 28

Sparsely vegetated land - Coastal sand dunes

B1.63 Dune Juniperus thickets (non-NVC) [H2250]

s3a4

Sparsely vegetated land - Coastal sand dunes

B1.8 Moist and wet dune slacks (includes B1.81-B1.86) [H2190]

s3a3

Sparsely vegetated land - Coastal sand dunes

B1.81 Dune-slack pools (A10* A11* A13* A16* A22* other) [H2190*]

s3a3

Sparsely vegetated land - Coastal sand dunes

B1.82 Dune-slack pioneer swards (SD13) [H2190*]

s3a3

Sparsely vegetated land - Coastal sand dunes

B1.83 Dune-slack fens (SD14-15 non-NVC) [H2190*]

s3a3

Sparsely vegetated land - Coastal sand dunes

B1.84 Dune-slack grassland and heaths (SD16* SD17) [H2190*]

s3a3

Sparsely vegetated land - Coastal sand dunes

B1.85 Dune-slack reedbeds, sedgebeds and canebeds (S4* S19* other) [H2190*]

s3a3 or f2e secondary code 138

Sparsely vegetated land - Coastal sand dunes

Wetland - Reedbeds

B1.86 Coastal dunes: wet dune slacks: dominated by shrubs or trees (W1* W2* W4* W6*) [H2190*]

s3a3 secondary code 10 or 11

Sparsely vegetated land - Coastal sand dunes

B1.9 Machair (SD8* SD17* MG11* OV4* non-NVC) [H21A0]

secondary code 26

B2 Coastal shingle

s3b

Sparsely vegetated land - Coastal vegetated shingle

B2.1 Shingle beach driftlines

s3b

Sparsely vegetated land - Coastal vegetated shingle

B2.12 Atlantic and Baltic shingle beach drift lines (SD2* SD3* MC6* non-NVC) [H1210]

s3b6

Sparsely vegetated land - Coastal vegetated shingle

B2.2 Unvegetated mobile shingle beaches above the driftline

s3

Sparsely vegetated land - Coastal sand dunes

Sparsely vegetated land - Coastal vegetated shingle

B2.3 Upper shingle beaches with open vegetation (SD1 SD3* non-NVC) [H1220*]

S3b5

Sparsely vegetated land - Coastal vegetated shingle

B2.4 Fixed shingle beaches, with herbaceous vegetation

Sb3

Sparsely vegetated land - Coastal vegetated shingle

B2.41 Euro-Siberian gravel bank grasslands (MG1* non-NVC) [H1220*]

s3b5

Sparsely vegetated land - Coastal vegetated shingle

B2.4# Other herbaceous vegetation of fixed coastal shingle (CG10* MC5* MC8* MC9* U1* U4* U20* non-NVC) [H1220*]

s3b5

Sparsely vegetated land - Coastal vegetated shingle

B2.4€ Perennial vegetation of stony banks (see component types) (includes B2.3, B2.4, B2.5, B2.6) [H1220]

s3b5

Sparsely vegetated land - Coastal vegetated shingle

B2.5 Shingle and gravel beaches with scrub (H10* W22* W23* W24* other) [H1220*]

s3b5 secondary code 10

Sparsely vegetated land - Coastal vegetated shingle

B2.6 Shingle and gravel beach woodland (W1* W9* W11* non-NVC) [H1220*]

s3b5 secondary code 10 or 11

Sparsely vegetated land - Coastal vegetated shingle

B3 Rock cliffs, ledges and shores, including the supralittoral

s2

Sparsely vegetated land - Maritime cliff and slopes

B3.1 Supralittoral rock (lichen or splash zone)

t1e

B3.2 Unvegetated rock cliffs, ledges, shores and islets

s2

Sparsely vegetated land - Maritime cliff and slopes

B3.3 Rock cliffs, ledges and shores, with angiosperms

s2a

Sparsely vegetated land - Maritime cliff and slopes

B3.31 Atlantic sea-cliff communities (MC1-3 MC5 MC6* MC7-10 MC12 H7 H8* H10* CG10* MG1* U20* W21* W22* W23* W24* W25* other) [H1230*]

s2a5

Sparsely vegetated land - Maritime cliff and slopes

B3.31€ Vegetated sea cliffs of the Atlantic and Baltic coasts (various) (includes B3.31, B3.4) [H1230]

s2a5

Sparsely vegetated land - Maritime cliff and slopes

B3.4 Soft sea-cliffs, often vegetated (various) [H1230*]

s2a6

Sparsely vegetated land - Maritime cliff and slopes

Mires, Bogs and Fens (D)

EUNIS Level 2

EUNIS Level 3

EUNIS Level 4

EUNIS Level 5

EUNIS Level 6

UKHab code

DEFRA Biodiversity Metric Definition

D1 Raised and Blanket bogs

F1

D1.1 Raised bogs

F1b

Wetland - Lowland raised bog

D1.11 Active, relatively undamaged raised bogs (M18* M19* M1* M2*) [H7110]

F1b

Wetland - Lowland raised bog

D1.12 Damaged, inactive bogs

F1b5

Wetland - Lowland raised bog

D1.12# Degraded raised bogs still capable of natural regeneration (M3* M15* M16* M17* M18* M19* M20* M25* other) [H7120]

F1b6

Wetland - Lowland raised bog

D1.12x Damaged, inactive bogs not capable of restoration within 30 years (various)

F1b7

Wetland - Lowland raised bog

D1.2 Blanket bogs (includes D1.21, D1.22, D1.24) [H7130]

F1a

Wetland - Blanket bog

D1.21 Hyperoceanic low-altitude blanket bogs, typically with dominant Trichophorum (M1* M2* M3* M15* M17* M18* M25*) [H7130*]

F1a5

Wetland - Blanket bog

D1.22 Montane blanket bogs, Calluna and Eriophorum vaginatum often dominant (M1* M2* M3* M15* M19* M20*) [H7130*]

f1a5 secondary code 13

Wetland - Blanket bog

D1.24 Wet bare peat and peat haggs on blanket bogs [H7130*]

f1a5 secondary code 127 or 85 where peat has been cut

Wetland - Blanket bog

D2 Valley mires, poor fens and transition mires

f2a f2c

Wetland - Fens (upland and lowland)

D2.1 Valley mires

f2a f2c secondary code 187

Wetland - Fens (upland and lowland)

D2.11 Acid valley mires (M21)

f2a f2c secondary code 187

Wetland - Fens (upland and lowland)

D2.2 Poor fens and soft-water spring mires

f2a f2c secondary codes 183 or 184 or185

Wetland - Fens (upland and lowland)

D2.22 Carex nigra, Carex canescens, Carex echinata fens (M6-7)

f2f secondary code 186

D2.2C Soft water spring mires (M31-33 M35-36)

f2f secondary code 186

D2.3 Transition mires and quaking bogs

f2a8 or f2c8

Wetland - Fens (upland and lowland)

D2.31 Carex lasiocarpa swards (M4* M5* M9*) [H7140*]

f2a8 or f2c8 secondary code 178 and 179 or 180 and 187

Wetland - Transition mires and quaking bogs (H7140)

D2.3 Transition mires and quaking bogs D2.31 Carex lasiocarpa swards (M4* M5* M9*) [H7140*] D2.32 Carex diandra quaking mires (M9*) [H7140*]

f2a8 or f2c8 secondary code 178 and 179 or 180 and 188

Wetland - Transition mires and quaking bogs (H7140)

D2.33 Carex rostrata quaking mires (M4* M5* M8 M9*) [H7140*]

f2a8 or f2c8 secondary code 179 or 181

Wetland - Transition mires and quaking bogs (H7140)

D2.33€ Transition mires and quaking bogs (Annex I) (includes D2.31-33, D2.39, D2.3#) [H7140]

f2a8 or f2c8 secondary code 178 and 179 or 180 and 188

Wetland - Transition mires and quaking bogs (H7140)

D2.37 Rhynchospora alba quaking bogs (M1* M2*) [H7150]

f2a8 or f2c8 secondary code 24

Wetland - Transition mires and quaking bogs (H7140)

D2.39 Menyanthes trifoliata and Potentilla palustris rafts (S27 non-NVC) [H7140*]

f2a8 or f2c8 secondary code 178 and 179 or 180 or 181 or 182 and 186

Wetland - Transition mires and quaking bogs (H7140)

D2.3# Hypericum elodes-Potamogeton polygonifolius soakway (M29*) [H7140*]

f2a8 or f2c8 secondary code 178 and 179 or 180 and 186

Wetland - Transition mires and quaking bogs (H7140)

D4 Base-rich fens and calcareous spring mires

f2a or f2c

Wetland - Fens (upland and lowland)

D4.1 Rich fens, including eutrophic tall-herb fens and calcareous flushes and soaks

f2a or f2c

Wetland - Fens (upland and lowland)

D4.12 Schoenus ferrugineus fens (M10*) [H7230*]

f2a7 or f2c7 secondary code 14 or 15 and 169 and 175

Wetland - Fens (upland and lowland)

D4.15 Carex dioica, Carex pulicaris and Carex flava fens (M10*) [H7230*]

f2a7 or f2c7 secondary code 14 or 15 and (169 and 175) or (171 and 183) or 184

Wetland - Fens (upland and lowland)

D4.15€ Alkaline fens (includes D4.12, D4.15, D4.19, D4.1C) [H7230]

f2a7 or f2c7 secondary code 171

Wetland - Fens (upland and lowland)

D4.17 Carex saxatilis fens (M12) [H7240*]

f2c5 secondary code 14 or 15

D4.19 British Carex demissa - Saxifraga aizoides flushes (M11*) [H7230*]

f2a7 or f2c7 secondary codes 14 or 15 and 171 and 186

Wetland - Fens (upland and lowland)

D4.1C Carex rostrata alkaline fens (M9*) [H7230*]

f2a7 or f2c7 secondary code 14 or 15 and 171 and 186 or 183

Wetland - Fens (upland and lowland)

D4.1I Tall herb fens (S25*)

f2a or f2c 16 secondary code 174

Wetland - Fens (upland and lowland)

D4.1N Hard water spring mires (M37 M38) [H7220]

f2a6 or f2c6

Wetland - Fens (upland and lowland)

D4.2 Basic mountain flushes and streamsides, with a rich arctic-montane flora

f2c

D4.24 British mica flushes (M10* M11* M34) [H7240*]

f2c5

D4.24€ Alpine pioneer formations of the Caricion bicoloris-atrofuscae (M10* M11* M12 M34) (includes D4.17, D4.24) [H7240]

f2c5

Montane habitats

EUNIS Level 2

EUNIS Level 3

EUNIS Level 4

EUNIS Level 5

EUNIS Level 6

UK Hab code

DEFRA Biodiversity Metric habitat

F2 Artic, alpine and subalpine scrub

h1c

Heathland and shrub - Mountain heaths and willow scrub

F2.1 Subarctic and alpine dwarf willow scrub

h1c5

Heathland and shrub - Mountain heaths and willow scrub

F2.11 Boreo-alpine acidocline snow-patch Salix herbacea scrub (U12) [H6150*]

g1b5

Grassland - Upland acid grassland

F2.1# Sub-Arctic Salix spp. scrub (W20) [H4080]

h1c6

Heathland and shrub - Mountain heaths and willow scrub

F2.2 Evergreen alpine and subalpine heath and scrub

h1c

Heathland and shrub - Mountain heaths and willow scrub

F2.25 Boreo-alpine and arctic heaths (H10* H12* H13-15 H16* H17 H18* H19-20 H21* H22*) [H4060]

h1c5

Heathland and shrub - Mountain heaths and willow scrub

F2.29 Dryas octopetala mats

F2.29#1 Dryas mats not on limestone pavement (CG13* CG14) [H6170*]

g2b5

Grassland - Upland calcareous grassland

F2.29#2 Dryas mats on limestone pavement (CG13*) [H8240*]

s1b5

Sparsely vegetated land - Limestone pavement

F2.3 Subalpine deciduous scrub

h1c

Heathland and shrub - Mountain heaths and willow scrub

F2.32 Subalpine and oroboreal Salix brush

h1c

Heathland and shrub - Mountain heaths and willow scrub

F2.323 Northern British willow brush (non-NVC)

w1h5 secondary code 37

Woodland and forest - Other woodland; mixed

F3 Temperate and Mediterranean – montane scrub

F3.1 Temperate thickets and scrub

F3.11 Medio-European rich-soil thickets (W21* W22*)

h3d, s3a7 secondary code 10

Heathland and shrub - Bramble scrub

Sparsely vegetated land - Coastal sand dunes

F3.13 Atlantic poor soil thickets (W24* W25*)

h3d

Heathland and shrub - Bramble scrub

F3.14 Temperate Cytisus scoparius fields (W23*)

h3e

Heathland and shrub - Gorse scrub

F3.15 Ulex europaeus thickets (W23*)

h3e

Heathland and shrub - Gorse scrub

F3.16 Juniperus communis scrub

secondary code 22

F3.16#1 Juniperus communis formations on heaths or calcareous grasslands (W19*) [H5130]

g2a or h1a secondary code 22

Grassland - Lowland calcareous grassland

Heathland and shrub - Lowland Heathland

F3.16#2 Juniperus communis scrub in native pinewoods (W19*) [H91C0*]

w2a5

Woodland and forest - Native pine woodlands

F3.17 Corylus thickets

h3b6

Heathland and shrub - Hazel scrub

F3.17#1 Corylus thickets on calcareous rocky slopes (W9*) [H9180*]

w1b5

Woodland and forest - Upland mixed ashwoods

F3.17#2 Corylus thickets on limestone pavement (W9*) [H8240*]

s1b5 secondary code 10

Sparsely vegetated land - Limestone pavement

F3.17x Corylus thickets not on calcareous rocks (W11*)

h3b6

Heathland and shrub - Hazel scrub

F4 Temperate shrub heathland

h1

F4.1 Wet heaths

h1a or h1b

Heathland and shrub - Lowland Heathland

Heathland and shrub - Upland Heathland

F4.11 Northern wet heaths (M15* M16*) [H4010]

h1a7 or h1b6

Heathland and shrub - Lowland Heathland

Heathland and shrub - Upland Heathland

F4.13 Molinia caerulea wet heaths (M25*)

f2b or g1 (secondary codes 14 or 15)

Wetland - Purple moor grass and rush pastures

F4.2 Dry heaths (includes F4.21-F4.25) [H4030]

h1a5 or h1b5 or s2a (coastal)

Heathland and shrub - Lowland Heathland

Heathland and shrub - Upland Heathland

Sparsely vegetated land - Inland rock outcrop and scree habitats

F4.21 Submontane Vaccinium - Calluna heaths (H12* H18* H21* H22*) [H4030*]

h1a5

Heathland and shrub - Lowland Heathland

F4.22 Sub-Atlantic Calluna - Genista heaths (H9 H16*) [H4030*]

h1a5

Heathland and shrub - Lowland Heathland

F4.23 Atlantic Erica – Ulex heaths (H8*) [H4030*]

h1a5

Heathland and shrub - Lowland Heathland

F4.25 Boreo-Atlantic Erica cinerea heaths (H7* H10*) [H4030*]

h1a5

Heathland and shrub - Lowland Heathland

F9 Riverine and fen scrubs

F9.2 Salix carr and fen scrub

w1d

Woodland and forest - Wet woodland

F9.21 Grey willow carrs (W1 W2* W3* W5*)

w1d

Woodland and forest - Wet woodland

F9.22 Sphagnum willow carrs (W4*)

w1d

Woodland and forest - Wet woodland

F9.23 Bay willow carrs (W3*)

w1d

Woodland and forest - Wet woodland

F9.3 Southern riparian galleries and thickets

g3 secondary codes 16 or 17, 48

Neutral grassland

F9.35 Riparian stands of invasive shrubs (non-NVC)

Woodland, Forest and Other Wooded Land (G)

EUNIS Level 2

EUNIS Level 3

EUNIS Level 4

EUNIS Level 5

EUNIS Level 6

UK Hab code

DEFRA Biodiversity Metric habitat

G1 Broadleaved deciduous woodland

w1

G1.1 Riparian and gallery woodland, with dominant Alnus, Betula, Populus or Salix

w1d

Woodland and forest - Wet woodland

G1.11 Riverine Salix woodland (W6*) [H91E0*]

w1d5

Woodland and forest - Wet woodland

G1.2 Mixed riparian floodplain and gallery woodland

w1d

Woodland and forest - Wet woodland

G1.21 Riverine Fraxinus - Alnus woodland, wet at high but not at low water (W2* W5* W6* W7*) [H91E0*]

w1d5 secondary code 119

Woodland and forest - Wet woodland

G1.21€ Alluvial forests with Alnus glutinosa and Fraxinus excelsior (Alno-Padion, Alnion incanae, Salicion albae) (W2* W5* W6* W7*) (includes G1.11, G1.21) [H91E0]

w1d5

Woodland and forest - Wet woodland

G1.4 Broadleaved swamp woodland not on acid peat

G1.41 Alnus swamp woods not on acid peat (W2* W3* W5* W6* W7*)

w1d

Woodland and forest - Wet woodland

G1.5 Broadleaved swamp woodland on acid peat

G1.51 Sphagnum Betula woods

w1d secondary codes 163, 127

Woodland and forest - Wet woodland

G1.51# Birch bog woodland (W4* M17* M18*) [H91D0*]

w1d6

Woodland and forest - Wet woodland

G1.51x Other sphagnum Betula woods (W2* W4*)

w1d secondary codes 163, 127

Woodland and forest - Wet woodland

G1.52 Alnus swamp woods on acid peat (W4*)

w1d secondary code 127

Woodland and forest - Wet woodland

G1.6 Fagus woodland

w1c

Woodland and forest - Lowland beech and yew woodland

G1.62 Atlantic acidophilous Fagus forests (W15)

w1c5

Woodland and forest - Lowland beech and yew woodland

G1.8 Acidophilous Quercus-dominated woodland

w1a

Woodland and forest - Upland oakwood

G1.81 Atlantic Quercus robur - Betula woods (W16*)

w1a or w1f7

Woodland and forest - Upland oakwood

G1.83 Atlantic Quercus petraea woods (W11* W17*) [H91A0*]

w1a5

Woodland and forest - Upland oakwood

G1.83€ Old sessile oak woods with Ilex and Blechnum in the British Isles (W11* W17*) (includes G1.83, G1.91#) [H91A0]

w1a5

Woodland and forest - Upland oakwood

G1.9 Non-riverine woodland with Betula, Populus tremula or Sorbus aucuparia

W1f

Woodland and forest - Lowland mixed deciduous woodland

G1.91 Betula woodland not on marshy terrain

w1f secondary code 119 or 120

Woodland and forest - Lowland mixed deciduous woodland

G1.91#1 Atlantic Betula - Quercus petraea woodlands (W11* W17*) [H91A0*]

w1a5

Woodland and forest - Upland oakwood

G1.91#2 Betula woodland in native pinewoods (W11* W17*) [H91C0*]

w2a5

Woodland and forest - Native pine woodlands

G1.91x Other dry Betula woodlands (W10* W11* W16* W17*)

w1e

Woodland and forest - Upland birchwoods

G1.92 Populus tremula woodland (W11*)

w1g7

Woodland and forest - Other woodland; broadleaved

G1.A Meso- and eutrophic Quercus, Carpinus, Fraxinus, Acer, Tilia, Ulmus and related woodland

w1

G1.A1 Quercus-Fraxinus-Carpinus betulus woodland on eutrophic and mesotrophic soils (W10*)

w1f7

Woodland and forest - Lowland mixed deciduous woodland

G1.A2 Non-riverine Fraxinus woodland

w1

G1.A2#1 Fraxinus woodland of slopes, screes and ravines (W7* W8* W9*) [H9180*]

w1b5

Woodland and forest - Upland mixed ashwoods

G1.A2#1€ Tilio-Acerion forests of slopes, screes and ravines (W7* W8* W9*) (includes F3.17#1, G1.A2#1) [H9180]

w1b5

Woodland and forest - Upland mixed ashwoods

G1.A2#2 Fraxinus woodland on limestone pavement (W9*) [H8240*]

s1b5 secondary code 10

Sparsely vegetated land - Limestone pavement

G1.A2x Other non-riverine Fraxinus woodland (W8*)

w1b6 or w1f

Woodland and forest - Upland mixed ashwoods

Woodland and forest - Lowland mixed deciduous woodland

G1.C Highly artificial broadleaved deciduous forestry plantations

w1h secondary code 36

Woodland and forest - Other woodland; mixed

G1.D Fruit and nut tree orchards

c1

G1.D4 Fruit orchards

G1.D4x1 Traditionally managed orchards

g1 or g2 or g3 secondary code 21

G1.D4x2 Intensively managed orchards

c1d

Cropland - Non-cereal crops

G3 Coniferous woodland

w2

G3.4 Pinus sylvestris woodland south of the taiga

w2a

Woodland and forest - Native pine woodlands

G3.41 Caledonian forest (W18*) [H91C0*]

w2a5

Woodland and forest - Native pine woodlands

G3.41€ Caledonian forest (Annex I) (W18* W19* W11* W17*) (includes F3.16#2, G1.91#2, G3.41) [H91C0]

w2a5

Woodland and forest - Native pine woodlands

G3.4F European Pinus sylvestris reforestation (W18*)

w2b

Woodland and forest - Other Scot's Pine woodland

G3.D Boreal bog conifer woodland

G3.D1 Boreal Pinus sylvestris bog woods (W18* M18* M19*) [H91D0*]

w1d6 secondary code 343

Woodland and forest - Wet woodland

G3.D1€ Bog woodland (W4* W18* M17* M18* M19* other) (includes G1.51#, G3.D1) [H91D0]

w1d6 secondary code 342

Woodland and forest - Wet woodland

G3.F Highly artificial coniferous plantations

w2c secondary code 36

Woodland and forest - Other coniferous woodland

G3.F1 Native conifer plantations (W18*)

w2c secondary codes 36 47

Woodland and forest - Other coniferous woodland

G3.F2 Exotic conifer plantations (non-NVC types)

w2c secondary codes 36 48

Woodland and forest - Other coniferous woodland

G4 Mixed deciduous and coniferous woodland

w1h

Woodland and forest - Other woodland; mixed

G4.F Mixed forestry plantations

w1h5 or w1h6 secondary code 36

Woodland and forest - Other woodland; mixed

G5 Lines of trees, small anthropogenic woodlands, recently felled woodland, earlystage woodland and coppice

w

G5.1 Lines of trees

w1g6 secondary code 341 or 342 or 343 and 47 and/or 48

Woodland and forest - Other woodland; broadleaved

G5.7 Coppice and early-stage plantations

coppice w1f or w1g or w1h secondary code 51 or 52: early stage lantations w1f w1g or w1h or w2c secondary code 56

Woodland and forest - Lowland mixed deciduous woodland

Woodland and forest - Other woodland; broadleaved

Woodland and forest - Other woodland; mixed

G5.8 Recently felled areas

w1f or w1g or w1h or w2c secondary code 53

Woodland and forest - Felled

Inland Unvegetated or sparsely vegetated Habitats (H)

EUNIS Level 2

EUNIS Level 3

EUNIS Level 4

EUNIS Level 5

EUNIS Level 6

UK Hab code

DEFRA Biodiversity Metric habitat

H1 Terrestrial underground caves, cave systems, passages and waterbodies

overlying habitat with secondary code 23

H1.1 Cave entrances

Not included

H1.2 Cave interiors

Not included

H1.3 Dark underground passages

Not included

H1.5 Underground standing waterbodies

Not included

H1.6 Underground running waterbodies

Not included

H1.7 Disused underground mines and tunnels

Not included

H2 Screes

s1a

Sparsely vegetated land - Inland rock outcrop and scree habitats

H2.3 Temperate-montane acid siliceous screes

s1a

Sparsely vegetated land - Inland rock outcrop and scree habitats

H2.31 Alpine siliceous screes (U21* non-NVC) [H8110*]

s1a5

Sparsely vegetated land - Inland rock outcrop and scree habitats

H2.31€ Siliceous scree of the montane to snow levels (Androsacetalia alpinae and Galeopsietalia ladani) (U18* U21* non-NVC) (includes E4.14, H2.31 and H5.11#1) [H8110]

s1a5

Sparsely vegetated land - Inland rock outcrop and scree habitats

H2.4 Temperate-montane calcareous and ultra-basic screes (OV38* OV40* non-NVC) [H8120*]

s1a6

Sparsely vegetated land - Inland rock outcrop and scree habitats

H2.4€ Calcareous and calcshist screes of the montane to alpine levels (Thlaspietea rotundifolii) (OV38* OV40* non-NVC) (includes H2.41 and H5.11#2) [H8120]

s1a6

Sparsely vegetated land - Inland rock outcrop and scree habitats

H3 Inland cliffs, rock pavements and outcrops

s1

H3.1 Acid siliceous inland cliffs

s1a

Sparsely vegetated land - Inland rock outcrop and scree habitats

H3.1# Siliceous rocky slopes with chasmophytic vegetation (U18* U21* non-NVC) [H8220]

s1a8

Sparsely vegetated land - Inland rock outcrop and scree habitats

H3.1C Disused siliceous quarries

s1a secondary code 105 and 135

Sparsely vegetated land - Inland rock outcrop and scree habitats

H3.2 Basic and ultra-basic inland cliffs

s1a

Sparsely vegetated land - Inland rock outcrop and scree habitats

H3.25 Alpine and sub-mediterranean chasmophyte communities (OV39* OV40* nonNVC) [H8210]

s1a7

Sparsely vegetated land - Inland rock outcrop and scree habitats

H3.4 Wet inland cliffs

s1

H3.42 Northern wet inland cliffs (U15 non-NVC)

s1 secondary code 120

H3.5 Almost bare rock pavements, including limestone pavements

H3.51 Pavements, rock slabs, rock domes

s1d

H3.511 Limestone pavements (OV38* OV39* OV40* CG10* non-NVC) [H8240*]

s1b5

Sparsely vegetated land - Limestone pavement

H3.511€ Limestone pavements (Annex I) (CG10* CG13* OV38* OV39* OV40* W9* non-NVC) (includes F2.29#2, F3.17#2, G1.A2#, H3.511) [H8240]

s1b5

Sparsely vegetated land - Limestone pavement

H3.51x Non-limestone rock slabs

s1d secondary code 135

H5 Miscellaneous inland habitat with very sparse or no vegetation

s1

H5.1 Fjell fields and other freeze-thaw features with very sparse or no vegetation

s1a

Sparsely vegetated land - Inland rock outcrop and scree habitats

H5.11 Fjell fields with very sparse or no vegetation

s1a

Sparsely vegetated land - Inland rock outcrop and scree habitats

H5.11#1 Acidic fell-fields (non-NVC) [H8110*]

s1a5

Sparsely vegetated land - Inland rock outcrop and scree habitats

H5.11#2 Basic fell-fields (non-NVC) [H8120*]

s1a6

Sparsely vegetated land - Inland rock outcrop and scree habitats

H5.3 Sparsely- or un-vegetated habitats on mineral substrates not resulting from recent ice activity

for burnt secondary code 63

H5.31 Clay and silt with very sparse or no vegetation

s1

Sparsely vegetated land

H5.35 Gravel with very sparse or no vegetation

s1 secondary code 145 or 106 for quarried areas

Sparsely vegetated land

H5.36 Shallow rocky soils with very sparse or no vegetation

s1

Sparsely vegetated land

H5.37 Boulder fields

s1d secondary code 135

Sparsely vegetated land

H5.6 Trampled areas

overlying habitat and secondary code 73 (and 58 for animals)

Cultivated and Artificial Habitats (I&J)

EUNIS Level 2

EUNIS Level 3

EUNIS Level 4

EUNIS Level 5

EUNIS Level 6

UK Hab code

DEFRA Biodiversity Metric habitat

I1 Arable land and market gardens

C1

I1.1 Intensive unmixed crops

c1b or c1c or c1d

Cropland - Temporary grass and clover leys

Cropland - Cereal crops

Cropland - Non-cereal crops

I1.2 Mixed crops of market gardens and horticulture

c1f

Cropland - Horticulture

I1.3 Arable land with unmixed crops grown by low-intensity agricultural methods (OV1* OV3-4* OV7* OV9-10* OV13*)

c1c or c1d7

Cropland - Cereal crops

Cropland - Non-cereal crops

I1.5 Bare tilled, fallow or recently abandoned arable land (OV1* OV3-4* OV7* OV9- 10* OV13*)

c1c or c1c5 secondary code 77 or 78 or 80 or 34 or 43 or 74

Cropland - Cereal crops

Cropland - Cereal crops winter stubble

I2 Cultivated areas of gardens and parks

u1d secondary code 200 or 210 or 211 or 212 or 213 or 214 or 215 or 230 or 231

J1 Buildings of cities, towns and villages

u1b5

Urban - Developed land; sealed surface

J2 Low density buildings

u1b5 or u1d

Urban - Developed land; sealed surface

J3 Extractive industrial sites

s secondary code 100 or 101 or 105 or 106

J4 Transport networks and other constructed hard surfaced areas

u1e

Urban - Built linear features

J5 Highly artificial man-made waters and associated structures

r1a or r1b or r1c secondary code 39 or 105 or 362 or r1e

Lakes - Ponds (Non- Priority Habitat)

J6 Waste deposits

Intertidal habitats

EUNIS Level 2

EUNIS Level 3

EUNIS Level 4

EUNIS Level 5

EUNIS Level 6

UK Hab code

DEFRA Biodiversity Metric habitat

A2 Littoral sediment

t2

A2.5 Coastal saltmarshes

t2a

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.51 Saltmarsh driftlines (SM27-28)

t2a or t2a5

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.52 Upper saltmarshes (SM23)

t2a

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.53 Mid-upper saltmarshes (SM15-20) [H1330*]

t2a7

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.54 Low-mid saltmarshes (SM10 SM13-14) [H1330*]

t2a7 secondary code 122

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.54€ Atlantic salt meadows (Glauco-Puccinellietalia maritimae) (includes A2.53, A2.54, A2.556) [H1330]

t2a7

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.55 Pioneer saltmarshes

t2a

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.551 Salicornia, Suaeda and Salsola pioneer saltmarshes (SM8-9) [H1310]

t2a5

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.554 Flat-leaved Spartina swards (SM5-6)

t2a (t2a6 for Annex I 1320)

Coastal saltmarsh - Saltmarshes and saline reedbeds

A2.556 Rayed Aster tripolium pioneer saltmarshes (SM12) [H1330*]

t2a7

Coastal saltmarsh - Saltmarshes and saline reedbeds

A5 Sublittoral sediment

A5.5 Sublittoral macrophyte-dominated sediment

A5.54 Angiosperm communities in reduced salinity

A5.542 Association with Potamogeton pectinatus (A12*) [H1150*]

t2g5

A5.543 Vegetation of brackish waters dominated by Ranunculus baudotii (A21*) [H1150*]

t2g5

Contact

Email: katherine.pollard@gov.scot

Back to top