Farm Service Agency Interest Of Ia
IUCN Not AssignedConservation Easement
9 km²
County · USA
Mahaska
United States
DfaCold, no dry season, hot summer(100 %)
Species observed
858
Observations
16 167
Area
1 489,3km²
Ecological tissue
Sample of 41 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 Mahaska : 31 espèces reliées par 80 interactions GloBI sur 3 types (connectance 9.8%, filtre Serrano α=0.2). 10 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Espèces affichées
41
Interactions affichées
80
Connectance
0.098
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
858 distinct species · 16 167 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Climate
Mean T°
10,3°C
Annual rain
952mm
Warmest m°
29,3°C
Coldest m°
-9,3°C
Elevation: 242 m on average (min 203 m, max 273 m)
Bioclimatic details19 BIO + Köppen full + altitude statsExpert
Annual mean temp.
10,3°C
Annual rain
952mm
Warmest month
29,3°C
Coldest month
-9,3°C
Mean alt.
242m
Min
203m
Max
273m
Std. dev.
14m
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
6,2
Org. C
20,2g/kg
Clay
38,5%
Sand
10,1%
Silt
51,3%
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
28,3g/kg
Clay
38,0%
Sand
10,4%
Silt
51,7%
5–15 cm
pH H₂O
6,2
Org. C
20,1g/kg
Clay
38,2%
Sand
10,1%
Silt
51,8%
15–30 cm
pH H₂O
6,0
Org. C
12,1g/kg
Clay
39,4%
Sand
10,0%
Silt
50,6%
SoilGrids 250m (ISRIC, 2017) · GLiM v1.0 (Hartmann & Moosdorf 2012)
Land cover
Forest10.9%
Crops64.7%
Built-up0.4%
Bare soil1.3%
Other (grassland, water…)22.7%
Copernicus Global Land Cover 100m (Buchhorn et al. 2020)
Hydrology7 basins · 3 lakes · 27 rivers
Hydrology metrics for this exact territory
Stream length here
287,8km
Lake surface here
1,28km²
Basins crossed
7
Max stream order
6
Max drainage
35 071km²
Discharge in basins
97,8m³/s
Mean precip.
899mm/an
Mean T°
9,7°C
Moisture idx
-0,13
Max snow
16%
Mean runoff
262mm/an
Mean elev. (basins)
249m
Watersheds crossing here
- Bassin de South Skunk Riversub-area1 621,1 km²overlap460.21 km²31%
- Bassin de Des Moines Riversub-area1 449,5 km²overlap452.35 km²30%
- Bassin de North Skunk Riversub-area2 247,8 km²overlap418.75 km²28%
- Bassin de Cedar Creeksub-area1 449,9 km²overlap109.64 km²7%
- Bassin de English Creeksub-area450,7 km²overlap33.02 km²2%
- Bassin de Cedar Creeksub-area1 098 km²overlap11.22 km²1%
- Bassin de English Riversub-area1 664 km²overlap4.15 km²0%
Lakes (3, top by area)
Rivers / streams (27, ord ≥ 4)
- North Skunk Riverord 4len here47.80 km28%total171 km
- South Skunk Riverord 4len here37.86 km18%total205 km
- Muchakinock Creekord 6len here36.51 km93%total39 km
- Des Moines Riverord 6len here34.24 km4%total913 km
- Bluff Creekord 7len here16.67 km5%total313 km
- Ballinger Creekord 4len here11.53 km100%total12 km
- Coal Creekord 6len here9.84 km2%total521 km
- Spring Creekord 5len here9.80 km0%total2668 km
- Elk Creekord 4len here9.31 km1%total647 km
- Saint Joseph Creekord 1len here8.76 km52%total17 km
- Mitchell Creekord 4len here8.58 km14%total61 km
- Little Muchakinock Creekord 1len here8.19 km100%total8 km
15 more river segmentssorted by Strahler order + length
- Cedar Creekord 6len here7.91 km0%total2026 km
- English Creekord 3len here6.77 km9%total79 km
- Buckley Creekord 2len here6.56 km61%total11 km
- Little Bluff Creekord 1len here6.45 km90%total7 km
- Snyder Creekord 1len here4.47 km66%total7 km
- East Branch Buckley Creekord 1len here4.23 km100%total4 km
- North Coal Creekord 1len here2.38 km100%total2 km
- Middle Branch Buckley Creekord 2len here1.95 km67%total3 km
- Turkey Runord 3len here1.68 km2%total68 km
- Thunder Creekord 2len here1.42 km5%total29 km
- Painter Creekord 1len here1.27 km4%total33 km
- South English Riverord 2len here1.13 km2%total65 km
- Grays Creekord 2len here1.12 km2%total54 km
- Mattix Branchord 1len here0.72 km17%total4 km
- Price Creekord 6len here0.65 km1%total56 km
Live spatial overlap (cached after first hit) · HydroBASINS lev08 × HydroLAKES × HydroRIVERS v10
Human pressure
Pop. density
0hab/km²
Night light
0,6nW
Built-up
43,1%
Pesticides
7,1kg/km²
GHSL POP/Built 2020 · VIIRS lumière nocturne · PEST-CHEMGRIDS 2020 (Maggi et al.)
Protected areas21
IUCN V · 20IUCN Not Assigned · 1
Hawthorn Lake
IUCN VWildlife Management Area
7 km²
Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Mahaska, IA
IUCN VWatershed Protection · 2001
5 km²
Hull
IUCN VWildlife Management Area
2 km²
Wetlands Reserve Program (WRP), Mahaska, IA
IUCN VReserve Program · 1998
2 km²
Winford
IUCN VWildlife Management Area
1 km²
Complete list21 protected areas
- Farm Service Agency Interest Of IaConservation EasementIUCN Not Assigned9 km²
- Hawthorn LakeWildlife Management AreaIUCN V7 km²
- Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Mahaska, IAWatershed ProtectionIUCN V20015 km²
- HullWildlife Management AreaIUCN V2 km²
- Wetlands Reserve Program (WRP), Mahaska, IAReserve ProgramIUCN V19982 km²
- WinfordWildlife Management AreaIUCN V1 km²
- Eddyville Sand PrairieLocal Conservation AreaIUCN V1 km²
- Cedar BluffsState PreserveIUCN V1 km²
- RussellWildlife AreaIUCN V1 km²
- White OakConservation AreaIUCN V1 km²
- Agricultural Conservation Easement Program - Wetland Reserve Easements (ACEP-WRE), Mahaska, IAConservation EasementIUCN V20200 km²
- Maskunky MarshLocal Conservation AreaIUCN V0 km²
- Emergency Watershed Protection Program - Floodplain Easement (EWPP-FPE), Keokuk, IAWatershed ProtectionIUCN V20100 km²
- Rose HillAccessIUCN V0 km²
- QuercusWilderness AreaIUCN V0 km²
- Ever-Tru NaturalWilderness AreaIUCN V0 km²
- Emergency Wetlands Reserve Program (EWetlands Reserve Program (WRP)), Mahaska, IAReserve ProgramIUCN V19950 km²
- Rose Hill MarshLocal Conservation AreaIUCN V0 km²
- Lomax-SwansonWildlife AreaIUCN V0 km²
- Peters' WildlifeLocal Conservation AreaIUCN V0 km²
- GlendaleAccessIUCN V0 km²
WDPA (World Database on Protected Areas) — UNEP-WCMC & IUCN