Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Merrick, NE
IUCN VConservation Easement · 2001
12 km²
County · USA
Nance
United States
DfaCold, no dry season, hot summer(100 %)
Species observed
592
Observations
9 660
Area
1 160,5km²
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 Nance : 31 espèces reliées par 90 interactions GloBI sur 4 types (connectance 11.5%, filtre Serrano α=0.2). 9 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
40
Interactions affichées
90
Connectance
0.115
Patrimoniales
0
Plus dense que (national)0 %(top 100%)
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Species present
592 distinct species · 9 660 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,0°C
Annual rain
737mm
Warmest m°
30,2°C
Coldest m°
-8,4°C
Elevation: 530 m on average (min 472 m, max 603 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,0°C
Annual rain
737mm
Warmest month
30,2°C
Coldest month
-8,4°C
Mean alt.
530m
Min
472m
Max
603m
Std. dev.
32m
Köppen-Geiger (dominant)
DfaCold, no dry season, hot summer(100 %)Cold
CHELSA BIO 1-19 v2.1 · ETOPO DEM 60s · Köppen-Geiger 1991-2020 (Beck et al. 2018)
Soil & lithology
pH H₂O
6,4
Org. C
20,8g/kg
Clay
28,2%
Sand
31,1%
Silt
40,7%
Average over 0-30 cm. Per-depth details in expert panel.
Dominant lithology: ssGLiM
3 soil depths detailed0-5cm / 5-15cm / 15-30cm × 5 propsExpert
0–5 cm
pH H₂O
6,3
Org. C
31,0g/kg
Clay
27,7%
Sand
31,4%
Silt
40,9%
5–15 cm
pH H₂O
6,4
Org. C
19,4g/kg
Clay
28,2%
Sand
31,3%
Silt
40,6%
15–30 cm
pH H₂O
6,5
Org. C
12,0g/kg
Clay
28,8%
Sand
30,6%
Silt
40,5%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest7.7%
Crops62.5%
Built-up0.1%
Bare soil0.8%
Other (grassland, water…)28.9%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology12 basins · 1 lakes · 13 rivers
Hydrology metrics for this exact territory
Stream length here
251,4km
Lake surface here
0,17km²
Basins crossed
12
Max stream order
5
Max drainage
153 304km²
Discharge in basins
135,7m³/s
Mean precip.
658mm/an
Mean T°
9,3°C
Moisture idx
-0,39
Max snow
11%
Mean runoff
128mm/an
Mean elev. (basins)
566m
Watersheds crossing here
- Bassin de Spring Creeksub-area1 223,3 km²overlap326.67 km²28%
- Bassin de North Branch Timber Creeksub-area364,1 km²overlap161.25 km²14%
- Bassin de Beaver Creeksub-area1 778,5 km²overlap138.45 km²12%
- Bassin de Loup Canalsub-area144,9 km²overlap134.91 km²12%
- Bassin de Prairie Creeksub-area1 533,4 km²overlap101.96 km²9%
- Bassin de Plum Creeksub-area300,5 km²overlap89.81 km²8%
- Bassin de Cedar Riversub-area88 km²overlap88.10 km²8%
- Bassin de Cedar Riversub-area938,9 km²overlap66.34 km²6%
- Bassin de Loup Riversub-area28 km²overlap28.03 km²2%
Lakes (1, top by area)
Rivers / streams (13, ord ≥ 4)
- Loup Riverord 7len here55.59 km42%total133 km
- Cedar Riverord 6len here31.68 km3%total994 km
- Prairie Creekord 5len here24.79 km3%total759 km
- Beaver Creekord 6len here17.76 km1%total3076 km
- Plum Creekord 6len here17.39 km2%total976 km
- Timber Creekord 6len here15.94 km5%total302 km
- South Branch Timber Creekord 2len here15.91 km57%total28 km
- Skeedee Creekord 1len here15.58 km100%total16 km
- Horse Creekord 7len here15.06 km1%total1158 km
- Loup Canalord 5len here13.80 km30%total45 km
- Council Creekord 5len here11.01 km26%total42 km
- North Branch Timber Creekord 2len here10.02 km33%total30 km
1 more river segmentssorted by Strahler order + length
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,1nW
Built-up
11,8%
Pesticides
9,0kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas7
IUCN V · 7
Wetlands Reserve Program (WRP), Nance, NE
IUCN VReserve Program · 1999
7 km²
Don Dworak
IUCN VWildlife Management Area · 1978
4 km²
Loup Public Power District
IUCN VWildlife Management Area · 1978
2 km²
Sunny Hollow
IUCN VWildlife Management Area · 1989
1 km²
Council Creek
IUCN VWildlife Management Area · 1997
1 km²
Complete list7 protected areas
- Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Merrick, NEConservation EasementIUCN V200112 km²
- Wetlands Reserve Program (WRP), Nance, NEReserve ProgramIUCN V19997 km²
- Don DworakWildlife Management AreaIUCN V19784 km²
- Loup Public Power DistrictWildlife Management AreaIUCN V19782 km²
- Sunny HollowWildlife Management AreaIUCN V19891 km²
- Council CreekWildlife Management AreaIUCN V19971 km²
- Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Merrick, NEConservation EasementIUCN V1 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN