Ontologia

HydroBASINS lev08 watershed · #7080501710

Bassin de Old Man's 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 : Iowa, Johnson

Pfafstetter: 74286240

Sub-basin area

635,2km²

Upstream area

635,5km²

Discharge

5,32m³/s

Mean elev.

237m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Iowa River81 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

2 dept-equivalent regions (GADM L2)

6 intersecting protected areas

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

Species present

723 distinct species · 7 054 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

7 054 obs · 16 cellules
Obs. / cellule
≥ 2 356
1 088–2 355
427–1 087
237–426
< 237

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 39 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 Bassin de Old Man's Creek : 26 espèces reliées par 130 interactions GloBI sur 4 types (connectance 17.5%, filtre Serrano α=0.2). 13 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
39
Interactions affichées
130
Connectance
0.175
Patrimoniales
0
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°

9,5°C

Annual rain

897mm

Moisture idx (CMI)

-0,13

Runoff

264mm/an

PET

1 031mm

AET

760mm

Mean slope

1,6°

Water table

91cm

Forest

1%

Crops

69%

Urban

0%

Protected

0%

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