National Park · usa
Big Bend
- Area
- 3 177 km²
- IUCN cat.
- II
- Year
- 1935
Overview
- Designation
- National Park
- IUCN category
- II · Parc national
Écosystèmes préservés + récréation grand public
- Established
- 1935
- Managing authority
- National Park Service
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
5 005 distinct species · 515 525 observations
Source: GBIF Occurrence snapshot 2026-05-01.
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).
Indicateurs du tissu écologique
Tissu écologique de Big Bend : 29 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 84 interactions GloBI sur 4 types (connectance 11.3%, 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).
Hydrology17 basins · 0 lakes · 25 rivers
Hydrology metrics for this exact territory
Stream length here
672,5km
Basins crossed
17
Max stream order
7
Max drainage
199 443km²
Discharge in basins
462,1m³/s
Mean precip.
309mm/an
Mean T°
19,6°C
Moisture idx
-0,81
Mean runoff
22mm/an
Mean elev. (basins)
975m
Watersheds crossing here
- Bassin de Tornillo Creeksub-area905,5 km²overlap786.77 km²25%
- Bassin de Río Bravo / Rio Grandesub-area2 380,8 km²overlap690.20 km²22%
- Bassin de Nine Point Drawsub-area1 703,8 km²overlap401.96 km²13%
- Bassin de Río Bravo / Rio Grandesub-area475 km²overlap288.58 km²9%
- Bassin de Río Bravo / Rio Grandesub-area239,7 km²overlap217.14 km²7%
- Bassin de Río Bravo / Rio Grandesub-area706,6 km²overlap210.12 km²7%
- Bassin de Cottonwood Creeksub-area282,5 km²overlap203.49 km²6%
- Bassin de Río Bravo / Rio Grandesub-area165,8 km²overlap149.64 km²5%
- Bassin de Well Creeksub-area267,1 km²overlap79.03 km²2%
8 more basinssorted by overlap
- Bassin de Maravillas Creeksub-area325,6 km²overlap51.37 km²2%
- Bassin de Río Bravo / Rio Grandesub-area1 503,9 km²overlap33.95 km²1%
- Bassin de Río Bravo / Rio Grandesub-area102,3 km²overlap31.83 km²1%
- Bassin de Río Bravo / Rio Grandesub-area77,8 km²overlap26.99 km²1%
- Bassin de Maravillas Creeksub-area1 073,9 km²overlap5.94 km²0%
- Bassin de Río Bravo / Rio Grandesub-area11,7 km²overlap0.14 km²0%
- Bassin de Piedritassub-area740,5 km²overlap0.02 km²0%
- Bassin de Arroyo Grandesub-area547,9 km²overlap0.00 km²0%
Rivers / streams (25, ord ≥ 4)
- Río Bravo / Rio Grandeord 7len here211.49 km7%total3249 km
- Tornillo Creekord 4len here89.13 km85%total105 km
- Alamo Creekord 7len here62.76 km81%total78 km
- Nine Point Draword 4len here49.75 km43%total116 km
- Fresno Creekord 2len here27.59 km45%total61 km
- Blue Creekord 1len here26.55 km80%total33 km
- Cottonwood Creekord 3len here23.29 km10%total232 km
- Smoky Creekord 2len here23.04 km100%total23 km
- Javalina Creekord 3len here23.03 km100%total23 km
- Glenn Draword 1len here21.01 km100%total21 km
- Oak Creekord 2len here20.87 km100%total21 km
- Heath Creekord 2len here19.61 km96%total20 km
13 more river segmentssorted by Strahler order + length
- Chalk Draword 4len here19.38 km19%total102 km
- Bone Spring Draword 2len here15.99 km85%total19 km
- Dugout Draword 1len here9.26 km100%total9 km
- Terlingua Creekord 4len here7.92 km5%total158 km
- Well Creekord 4len here5.84 km24%total25 km
- Star Creekord 2len here3.32 km100%total3 km
- Rough Runord 4len here3.13 km29%total11 km
- Ash Creekord 2len here3.05 km100%total3 km
- East Corazones Draword 3len here2.40 km11%total21 km
- Dawson Creekord 1len here2.15 km62%total3 km
- Santiago Draword 1len here1.68 km100%total2 km
- Arroyo Grandeord 3len here0.23 km0%total115 km
- Arroyo las Maguasord 2len here0.01 km0%total12 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Location
Fond cartographique : OpenFreeMap · © OpenStreetMap contributors · Géométrie : nos sources (GADM/HydroBASINS/HydroLAKES/HydroRIVERS/WDPA)
- Centroid
- 29.33242, -103.19444
- Open in maps
- OpenStreetMap → · Satellite →
Species observed (Phase 2)
Listing species observed within this protected area requires the GBIF v2 partition × WDPA spatial overlay matview. Computing infrastructure pending.