Ontologia

HydroBASINS lev08 watershed · #7080513360

Bassin de Howard Slough

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 : Davis, Weber

Endorheic 692% lakePfafstetter: 77381671

Sub-basin area

340,6km²

Upstream area

9 879,6km²

Discharge

55,53m³/s

Mean elev.

1 292m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin · #708051292015 km²

▲ Receives from 2 basins

2 dept-equivalent regions (GADM L2)

1 intersecting protected areas

  • Ogden Bay

    IUCN V

    State Wildlife Area

    1.78 km² overlap

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

Species present

881 distinct species · 351 384 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

351 384 obs · 10 cellules
Obs. / cellule
≥ 226 159
226 159–226 158
5 836–226 158
1 704–5 835
< 1 704

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

Ecological tissue

Sample of 29 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 Howard Slough : 19 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 81 interactions GloBI sur 3 types (connectance 18.6%, filtre Serrano α=0.2). 11 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
30
Interactions affichées
81
Connectance
0.186
Patrimoniales
1
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°

10,7°C

Annual rain

427mm

Moisture idx (CMI)

-0,62

Runoff

148mm/an

PET

1 128mm

AET

366mm

Mean slope

0,4°

Water table

58cm

Forest

5%

Crops

46%

Urban

16%

Protected

9%

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