HydroBASINS lev08 watershed · #2080050880
Bassin de River Nith
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 3 administrative regions : Dumfries and Galloway, East Ayrshire, South Lanarkshire
Sub-basin area
1 232,4km²
Upstream area
1 232,4km²
Discharge
46,92m³/s
Mean elev.
247m
Administrative coverage
3 dept-equivalent regions (GADM L2)
- Dumfries and Galloway1058.6 km²85.5% of basin
- East Ayrshire171.4 km²13.8% of basin
- South Lanarkshire8.0 km²0.6% of basin
30 intersecting protected areas
Muirkirk and North Lowther Uplands
IUCN Not ReportedEmerald Network
57.26 km² overlap
North Lowther Uplands
IUCN IVSite of Special Scientific Interest
55.30 km² overlap
Nith Estuary
IUCN Not ReportedNational Scenic Area
18.54 km² overlap
Solway Firth
IUCN Not ReportedEmerald Network
2.97 km² overlap
Site of Special Scientific Interest
2.97 km² overlap
Solway Firth
IUCN Not ReportedEmerald Network
2.97 km² overlap
Upper Solway Flats & Marshes
IUCN Not ReportedWetland of International Importance (Ramsar Site)
2.95 km² overlap
Muirkirk Uplands
IUCN IVSite of Special Scientific Interest
1.96 km² overlap
Kirkconnell Merse
IUCN IVNature Reserve
1.95 km² overlap
21 more protected areassorted by overlap area
Kirkconnell Flow
IUCN Not ReportedNature Reserves
1.59 km² overlap
Upper Solway Flats and Marshes
IUCN Not ReportedMarine Protected Area (OSPAR)
1.45 km² overlap
Solway Firth
IUCN Not ReportedMarine Protected Area (OSPAR)
1.44 km² overlap
Solway Mosses North
IUCN Not ReportedEmerald Network
1.44 km² overlap
Kirkconnell Flow
IUCN IVSite of Special Scientific Interest
1.44 km² overlap
Upper Nithsdale Woods
IUCN Not ReportedEmerald Network
1.00 km² overlap
Knockshinnoch Lagoons
IUCN IVNature Reserve
0.81 km² overlap
Mennock Water
IUCN IVSite of Special Scientific Interest
0.48 km² overlap
Shiel Dod
IUCN IVSite of Special Scientific Interest
0.48 km² overlap
Polhote and Polneul Burns
IUCN IIISite of Special Scientific Interest
0.32 km² overlap
Leadhills - Wanlockhead
IUCN IIISite of Special Scientific Interest
0.26 km² overlap
Coshogle Wood
IUCN IVSite of Special Scientific Interest
0.21 km² overlap
Stenhouse Wood
IUCN IVSite of Special Scientific Interest
0.19 km² overlap
Stenhouse Wood
IUCN IVNature Reserve
0.18 km² overlap
Chanlockfoot
IUCN IVSite of Special Scientific Interest
0.17 km² overlap
Back Wood
IUCN IVSite of Special Scientific Interest
0.16 km² overlap
Lagrae Burn
IUCN IIISite of Special Scientific Interest
0.10 km² overlap
Carron Water and Hapland Burn
IUCN IIISite of Special Scientific Interest
0.09 km² overlap
Tynron Juniper Wood
IUCN Not ReportedEmerald Network
0.07 km² overlap
Tynron Juniper Wood
IUCN IVSite of Special Scientific Interest
0.07 km² overlap
Fountainhead
IUCN IIISite of Special Scientific Interest
0.06 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
5 388 distinct species · 207 674 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 34 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de River Nith : 24 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 91 interactions GloBI sur 5 types (connectance 16.2%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
7,3°C
Annual rain
1 298mm
Moisture idx (CMI)
0,55
Runoff
1 087mm/an
PET
572mm
AET
525mm
Mean slope
6,7°
Water table
281cm
Forest
2%
Crops
13%
Urban
2%
Protected
6%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)