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Delta County

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Tracked elements of biodiversity include animals, plants, and natural communities that are uncommon either globally or within the state of Colorado. The list below includes all wetland and riparian dependent elements found within the county and the count of known occurrences.

  • Amphibians

State Scientific NameState Common NameGRankSRankCount
Anaxyrus boreas pop. 1Boreal Toad (Southern Rocky Mountain Population)G4T1QS11
Hyla arenicolorCanyon TreefrogG5S21
Lithobates pipiensNorthern Leopard FrogG5S32
Spea intermontanaGreat Basin SpadefootG5S32
  • Birds

State Scientific NameState Common NameGRankSRankCount
Catoptrophorus semipalmatusWilletG5S1B4
Egretta thulaSnowy EgretG5S2B4
Melanerpes lewisLewis's WoodpeckerG4S42
Pelecanus erythrorhynchosAmerican White PelicanG4S1B4
Sterna antillarumLeast TernG4S1B1
  • Fish

State Scientific NameState Common NameGRankSRankCount
Gila robustaRoundtail ChubG3S21
Oncorhynchus clarkii pleuriticusColorado River Cutthroat TroutG4T3S31
Ptychocheilus luciusColorado PikeminnowG1S12
Xyrauchen texanusRazorback SuckerG1S11
  • Natural Communities

State Scientific NameState Common NameGRankSRankCount
Alnus incana - Salix drummondiana ShrublandMontane Riparian ShrublandG3S31
Aquilegia micrantha - Mimulus eastwoodiae Herbaceous VegetationHanging GardensG2G3S210
Picea pungens / Alnus incana WoodlandMontane Riparian ForestsG3S31
Populus angustifolia / Rhus trilobata WoodlandNarrowleaf Cottonwood/SkunkbrushG3S31
Populus deltoides ssp. wislizeni / Rhus trilobata WoodlandFremont's Cottonwood Riparian ForestsG2S35
Pseudotsuga menziesii / Cornus sericea WoodlandLower Montane Riparian ForestsG4S21
Sarcobatus vermiculatus / Distichlis spicata ShrublandSaline Bottomland ShrublandsG4S22
Sarcobatus vermiculatus / Suaeda moquinii ShrublandSaline Bottomland ShrublandsGUQS22
Spartina gracilis Herbaceous VegetationWestern Slope Salt MeadowsGUS11
  • Vascular Plants

State Scientific NameState Common NameGRankSRankCount
Carex limosamud sedgeG5S25
Carex scirpoideaCanadian single-spike sedgeG5S22
Epipactis giganteagiant helleborineG4S1S236
Eriophorum gracileslender cottongrassG5S1S22
Hippochaete variegatavariegated scouringrushG5S12
Mimulus eastwoodiaeEastwood monkey-flowerG3G4S1S222
Utricularia minorlesser bladderwortG5S27