Stewardship Area · nzl
Rangitata/Rakaia Head Waters
- Area
- 540 km²
- IUCN cat.
- III
- Year
- 1987
Overview
- Designation
- Stewardship Area
- IUCN category
- III · Monument naturel
Caractéristique naturelle spécifique protégée
- Established
- 1987
- Managing authority
- Department of Conservation
Source : WDPA (UNEP-WCMC, World Database on Protected Areas).
Species present
785 distinct species · 10 314 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 36 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 Rangitata/Rakaia Head Waters : 30 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 40 interactions GloBI sur 4 types (connectance 6.3%, filtre Serrano α=0.2). 6 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydrology8 basins · 1 lakes · 26 rivers
Hydrology metrics for this exact territory
Stream length here
109,2km
Lake surface here
0,02km²
Basins crossed
8
Max stream order
3
Max drainage
2 020km²
Discharge in basins
28,0m³/s
Mean precip.
2 312mm/an
Mean T°
6,4°C
Moisture idx
0,58
Max snow
43%
Mean runoff
1 699mm/an
Mean elev. (basins)
1 145m
Watersheds crossing here
- Bassin de Rangitata Riversub-area2 019,6 km²overlap189.28 km²35%
- Bassin de Wilberforce Riversub-area1 042,6 km²overlap111.03 km²21%
- Bassin de Mathias Riversub-area302,6 km²overlap97.31 km²18%
- Bassin de Rakaia Riversub-area281,3 km²overlap96.44 km²18%
- Bassin de Lake Streamsub-area208,8 km²overlap28.81 km²5%
- Bassin de South Branch Ashburton River / Hakateresub-area1 744,2 km²overlap14.30 km²3%
- Bassin de Hokitika Riversub-area1 067,4 km²overlap2.24 km²0%
- Bassin de Whataroa Riversub-area596,9 km²overlap0.30 km²0%
Lakes (1, top by area)
Rivers / streams (26, ord ≥ 4)
- Lawrence Riverord 2len here13.20 km30%total44 km
- Frances Riverord 2len here11.64 km65%total18 km
- McCoy Streamord 2len here11.31 km93%total12 km
- Canyon Creekord 2len here7.81 km100%total8 km
- Lauper Streamord 3len here6.98 km53%total13 km
- Havelock Riverord 3len here6.01 km14%total42 km
- West Mathias Riverord 2len here5.37 km45%total12 km
- North Mathias Riverord 2len here5.10 km33%total16 km
- Cameron Riverord 2len here4.94 km26%total19 km
- Sinclair Riverord 1len here4.80 km38%total13 km
- Veil Streamord 1len here3.57 km100%total4 km
- Unknown Streamord 2len here3.54 km29%total12 km
14 more river segmentssorted by Strahler order + length
- Appleyard Streamord 1len here3.12 km100%total3 km
- South Mathias Riverord 1len here2.91 km55%total5 km
- South Branch Ashburton River / Hakatereord 4len here2.49 km2%total110 km
- Duncan Streamord 3len here2.36 km51%total5 km
- Hall Creekord 1len here2.16 km97%total2 km
- Boundary Creekord 1len here2.04 km74%total3 km
- Totara Streamord 3len here1.92 km21%total9 km
- Clyde Riverord 3len here1.83 km8%total24 km
- Rakaia Riverord 5len here1.38 km1%total218 km
- Moa Streamord 4len here1.17 km7%total17 km
- Cattle Streamord 3len here1.02 km8%total12 km
- Wilberforce Riverord 5len here0.99 km1%total70 km
- Lochaber Streamord 1len here0.90 km50%total2 km
- Reischek Streamord 1len here0.61 km12%total5 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
- -43.12301, 171.14889
- 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.