HydroBASINS lev08 watershed · #7080488730

Bassin de Ischua Creek

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 2 administrative regions : Allegany, Cattaraugus

5% lakePfafstetter: 74269994

Sub-basin area

552,8km²

Upstream area

552,8km²

Discharge

10,46m³/s

Mean elev.

567m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Allegheny River2061 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

Cattaraugus
New York · United States
442.6 km²
79.9% of basin
Allegany
New York · United States
111.0 km²
20.1% of basin

9 intersecting protected areas

Hanging Bog
IUCN V
Wildlife Management Area
2.28 km² overlap
Bear Creek
IUCN Ib
State Forest
2.27 km² overlap
Wetlands Reserve Program (WRP), Cattaraugus, NY
IUCN V
Reserve Program
1.65 km² overlap
Bush Hill
IUCN Ib
State Forest
1.03 km² overlap
Cattaraugus County Lands
IUCN V
Local Conservation Area
1.01 km² overlap
Wetlands Reserve Program (WRP), Allegany, NY
IUCN V
Reserve Program
0.94 km² overlap
Wetlands Reserve Program (WRP)
IUCN Not Assigned
Reserve Program
0.59 km² overlap
Crab Hollow
IUCN Ib
State Forest
0.31 km² overlap
New York
IUCN V
State Lands
0.00 km² overlap

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

864 distinct species · 64 310 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Ecological tissue

Sample of 32 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

RègnesAnimalPlanteChampignonBacterie

RelationsPredationParasitismeSymbiosePollinisation

StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Ischua Creek : 22 espèces reliées par 62 interactions GloBI sur 4 types (connectance 11.1%, filtre Serrano α=0.2). 12 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées

Interactions affichées

Connectance

0.111

Patrimoniales

Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

6,4°C

Annual rain

1 038mm

Moisture idx (CMI)

0,11

Runoff

586mm/an

PET

918mm

AET

748mm

Mean slope

6,1°

Water table

372cm

Forest

96%

Crops

12%

Urban

Protected

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)