Red River
IUCN IVNational Wildlife Refuge
61 km²
Parish · USA
Natchitoches
United States
CfaTemperate, no dry season, hot summer(100 %)
Species observed
3 215
Observations
55 350
Area
3 366,4km²
Ecological tissue
Sample of 38 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).
RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique
Indicateurs du tissu écologique
Tissu écologique de Natchitoches : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 79 interactions GloBI sur 4 types (connectance 10.7%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
39
Interactions affichées
79
Connectance
0.107
Patrimoniales
1
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
3 215 distinct species · 55 350 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
19,0°C
Annual rain
1 441mm
Warmest m°
33,7°C
Coldest m°
5,1°C
Elevation: 51 m on average (min 24 m, max 111 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
19,0°C
Annual rain
1 441mm
Warmest month
33,7°C
Coldest month
5,1°C
Mean alt.
51m
Min
24m
Max
111m
Std. dev.
19m
Köppen-Geiger (dominant)
CfaTemperate, no dry season, hot summer(100 %)Temperate
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
5,3
Org. C
17,6g/kg
Clay
20,1%
Sand
37,9%
Silt
42,0%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: suGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
5,3
Org. C
33,2g/kg
Clay
18,5%
Sand
39,0%
Silt
42,5%
5–15 cm
pH H₂O
5,3
Org. C
13,4g/kg
Clay
18,8%
Sand
38,8%
Silt
42,4%
15–30 cm
pH H₂O
5,3
Org. C
6,2g/kg
Clay
23,0%
Sand
36,0%
Silt
41,1%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest72.8%
Crops8.7%
Built-up0.2%
Bare soil0.2%
Other (grassland, water…)18.1%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology12 basins · 25 lakes · 55 rivers
Hydrology metrics for this exact territory
Stream length here
646,1km
Lake surface here
38,93km²
Basins crossed
12
Max stream order
6
Max drainage
173 205km²
Discharge in basins
1 771,9m³/s
Mean precip.
1 356mm/an
Mean T°
18,3°C
Moisture idx
-0,06
Max snow
1%
Mean runoff
470mm/an
Mean elev. (basins)
63m
Watersheds crossing here
- Bassin de Cane Riversub-area1 735,7 km²overlap1501.05 km²45%
- Bassin de Bayou Pierresub-area2 756,7 km²overlap592.67 km²18%
- Basin #25140sub-area318,8 km²overlap307.16 km²9%
- Bassin de Saline Bayousub-area1 072,7 km²overlap280.56 km²8%
- Bassin de Red Riversub-area510,6 km²overlap170.45 km²5%
- Bassin de Red Riversub-area493,6 km²overlap168.97 km²5%
- Bassin de Red Riversub-area132 km²overlap131.90 km²4%
- Bassin de Black Lake Bayousub-area675,4 km²overlap123.98 km²4%
- Bassin de Comrade Creeksub-area439,8 km²overlap56.15 km²2%
Lakes (25, top by area)
- Black Lake Bayou Reservoirarea16,9 km²avg depth23.3 m
- Black Lakearea8 km²avg depth3.8 m
- Sibley Lakearea6,9 km²avg depth10.1 m
- Lake #13730area1,4 km²avg depth1.5 m
- Lake #13727area1,1 km²avg depth1.8 m
- Lac 1064607area0,8 km²avg depth3.5 m
- Lac 1064809area0,8 km²avg depth3.6 m
- Lac 1064625area0,6 km²avg depth1.8 m
- Lac 1064631area0,6 km²avg depth3.0 m
16 more lakes
- Lac 1064616area0,5 km²avg depth1.8 m
- Lac 1064816area0,4 km²avg depth1.4 m
- Lac 1064622area0,3 km²avg depth1.8 m
- Lac 1064600area0,3 km²avg depth3.0 m
- Lac 1064867area0,3 km²avg depth1.1 m
- Lac 1064879area0,2 km²avg depth2.0 m
- Lac 1064605area0,2 km²avg depth2.7 m
- Lac 1064806area0,2 km²avg depth2.0 m
- Lac 1064663area0,2 km²avg depth2.1 m
- Lac 1064701area0,2 km²avg depth1.8 m
- Lac 1064721area0,2 km²avg depth2.7 m
- Lac 1064722area0,2 km²avg depth3.1 m
- Lac 1064743area0,2 km²avg depth2.8 m
- Lac 1064883area0,1 km²avg depth1.7 m
- Lac 1064726area0,1 km²avg depth2.8 m
- Lac 1064714area0,1 km²avg depth2.5 m
Rivers / streams (55, ord ≥ 4)
- Bayou Pierreord 6len here89.86 km23%total383 km
- Red Riverord 7len here88.94 km3%total2600 km
- Cane Riverord 6len here88.01 km67%total131 km
- Saline Bayouord 4len here30.57 km19%total162 km
- Old Riverord 9len here30.25 km38%total80 km
- Boggy Bayouord 3len here23.37 km28%total85 km
- Little Sandy Creekord 4len here19.22 km7%total288 km
- Bayou Provencalord 2len here15.32 km100%total15 km
- Bayou Santabarbord 3len here15.04 km94%total16 km
- Little Bayou Pierreord 5len here11.80 km16%total74 km
- McKims Creekord 3len here11.54 km100%total12 km
- Middle Creekord 4len here11.13 km2%total488 km
43 more river segmentssorted by Strahler order + length
- Bayou Luceord 4len here10.90 km100%total11 km
- Bayou L'Ivrogneord 3len here10.31 km100%total10 km
- Laird Branchord 4len here10.25 km100%total10 km
- Santabarb Creekord 2len here9.12 km97%total9 km
- Bayou Cypreord 1len here8.20 km100%total8 km
- Bobs Creekord 4len here7.98 km25%total32 km
- Bayou Choriord 2len here7.95 km100%total8 km
- Spring Branchord 2len here7.87 km60%total13 km
- Bayou Barbueord 2len here7.44 km100%total7 km
- Bayou Grandeord 1len here7.24 km100%total7 km
- Lyles Creekord 1len here7.17 km63%total11 km
- Horsepen Creekord 3len here7.07 km11%total62 km
- Youngs Bayouord 2len here6.77 km100%total7 km
- Kisatchie Bayouord 1len here6.71 km51%total13 km
- Lost Bayouord 1len here6.27 km100%total6 km
- Sulphur Branchord 2len here6.07 km66%total9 km
- Little Kisatchie Bayouord 2len here5.96 km100%total6 km
- Bayou Boulet De Canonord 2len here5.52 km100%total6 km
- Jim Dowden Branchord 4len here5.51 km100%total6 km
- Beaver Creekord 6len here5.27 km0%total3076 km
- Bayou de Museord 1len here5.19 km100%total5 km
- Horsehead Creekord 3len here4.54 km24%total19 km
- Bayou Mauriceord 1len here4.51 km100%total5 km
- Bayou Serpentord 1len here4.20 km100%total4 km
- Mayhaw Branchord 1len here4.06 km100%total4 km
- Caney Branchord 4len here3.90 km57%total7 km
- Odom Creekord 2len here3.69 km21%total18 km
- Mill Bayouord 2len here3.53 km24%total15 km
- Hyatt Branchord 2len here3.48 km100%total3 km
- Bayou Sourisord 1len here3.31 km100%total3 km
- Sheard Branchord 4len here3.01 km100%total3 km
- Middle Branchord 3len here2.83 km9%total32 km
- Tyrouge Bayouord 6len here2.09 km59%total4 km
- Dry Bayouord 2len here1.92 km41%total5 km
- Bayou Blueord 1len here1.84 km100%total2 km
- Red Creekord 5len here1.83 km2%total85 km
- Gumroot Branchord 1len here1.81 km100%total2 km
- Edmund Bayouord 1len here1.62 km100%total2 km
- Rocky Branchord 8len here1.52 km3%total46 km
- Big Henry Branchord 1len here1.20 km100%total1 km
- Clear Branchord 1len here0.99 km100%total1 km
- Little Middle Creekord 1len here0.36 km4%total10 km
- Black Lake Bayouord 4len here≈ tangenttotal49 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,5nW
Built-up
21,1%
Pesticides
10,5kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas12
IUCN V · 8IUCN IV · 1IUCN Ib · 1IUCN Not Assigned · 1IUCN Ia · 1
Wetlands Reserve Program (WRP), Natchitoches, LA
IUCN VReserve Program · 1993
60 km²
Kisatchie Hills
IUCN IbWilderness · 1980
35 km²
Agricultural Conservation Easement Program - Wetlands Reserve Easement (ACEP-WRE)
IUCN Not AssignedConservation Easement · 2015
25 km²
Saline Bayou, Louisiana
IUCN VWild and Scenic River · 1986
25 km²
Cunningham Brake
IUCN IaResearch Natural Area · 1990
7 km²
Complete list12 protected areas
- Red RiverNational Wildlife RefugeIUCN IV61 km²
- Wetlands Reserve Program (WRP), Natchitoches, LAReserve ProgramIUCN V199360 km²
- Kisatchie HillsWildernessIUCN Ib198035 km²
- Agricultural Conservation Easement Program - Wetlands Reserve Easement (ACEP-WRE)Conservation EasementIUCN Not Assigned201525 km²
- Saline Bayou, LouisianaWild and Scenic RiverIUCN V198625 km²
- Cunningham BrakeResearch Natural AreaIUCN Ia19907 km²
- Saline BayouState Wild or Scenic RiverIUCN V3 km²
- Black Lake BayouLakeIUCN V3 km²
- Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Natchitoches, LAConservation EasementIUCN V3 km²
- Wetlands Reserve Program (WRP), Winn, LAReserve ProgramIUCN V19982 km²
- Wetlands Reserve Program (WRP), Natchitoches, LAReserve ProgramIUCN V20100 km²
- Red RiverNational Wildlife RefugeIUCN V0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN