Mapping > Major River Basin Summaries > Upper San Juan Tracked Elements

The Upper San Juan Basin

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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 basin and the count of known occurrences.

  • Amphibians

State Scientific NameState Common NameGRankSRankCount
Anaxyrus boreas pop. 1Boreal Toad (Southern Rocky Mountain Population)G4T1QS18
Lithobates pipiensNorthern Leopard FrogG5S323
  • Birds

State Scientific NameState Common NameGRankSRankCount
Asio flammeusShort-eared OwlG5S2B1
Centrocercus minimusGunnison Sage GrouseG2G3S12
Coccyzus americanus occidentalisWestern Yellow-billed CuckooG5T2T3S1B1
Cypseloides nigerBlack SwiftG4S3B18
Egretta thulaSnowy EgretG5S2B1
Empidonax traillii extimusSouthwestern Willow FlycatcherG5T2SU1
Haliaeetus leucocephalusBald EagleG5S1B,S3N18
Himantopus mexicanusBlack-necked StiltG5S3B1
Melanerpes lewisLewis's WoodpeckerG4S433
Phalaropus tricolorWilson's PhalaropeG5S4B,S4N1
Plegadis chihiWhite-faced IbisG5S2B1
Sterna forsteriForster's TernG5S2B,S4N1
  • Fish

State Scientific NameState Common NameGRankSRankCount
Gila robustaRoundtail ChubG3S218
Oncorhynchus clarkii pleuriticusColorado River Cutthroat TroutG4T3S319
  • Insects

State Scientific NameState Common NameGRankSRankCount
Erebia pawlowskiiTheano AlpineG5S31
Speyeria nokomis nokomisGreat Basin Silverspot ButterflyG3T1S14
  • Mammals

State Scientific NameState Common NameGRankSRankCount
Sorex nanusDwarf ShrewG4S21
  • Mollusks

State Scientific NameState Common NameGRankSRankCount
Valvata sinceraMossy ValvataG5S32
  • Natural Communities

State Scientific NameState Common NameGRankSRankCount
Abies concolor - Picea pungens - Populus angustifolia / Acer glabrum ForestMontane Riparian ForestsG2S216
Abies lasiocarpa - Picea engelmannii / Calamagrostis canadensis ForestMontane Riparian ForestsG5S23
Abies lasiocarpa - Picea engelmannii / Carex aquatilis ForestSubalpine Riparian/wetland ForestG4SU4
Acer negundo - Populus angustifolia / Cornus sericea ForestNarrowleaf Cottonwood Riparian ForestsG2S25
Acer negundo / Cornus sericea ForestMontane Riparian Deciduous ForestG3?S11
Alnus incana - Salix (monticola, lucida, ligulifolia) ShrublandThinleaf Alder-Mixed Willow SpeciesG3S37
Alnus incana - Salix drummondiana ShrublandMontane Riparian ShrublandG3S38
Alnus incana / Cornus sericea ShrublandThinleaf Alder-Red-osier Dogwood Riparian ShrublandG3G4S34
Alnus incana / Mesic Forbs ShrublandThinleaf Alder/Mesic Forb Riparian ShrublandG3S36
Alnus incana / Mesic Graminoids ShrublandMontane Riparian ShrublandG3S21
Betula nana / Mesic Forbs - Mesic Graminoids ShrublandSubalpine Riparian ShrublandG3G4S32
Betula occidentalis / Maianthemum stellatum ShrublandFoothills Riparian ShrublandG4?S32
Betula occidentalis / Mesic Graminoids ShrublandLower Montane Riparian ShrublandsG3S22
Carex atherodes Herbaceous VegetationG3G5S11
Carex buxbaumii Herbaceous VegetationBuxbaum's Sedge Wet MeadowG3S13
Carex illota Herbaceous VegetationAlpine WetlandsGUQS15
Carex limosa Herbaceous VegetationMontane WetlandG2S1S23
Carex microptera Herbaceous VegetationMontane WetlandG4S13
Carex pellita Herbaceous VegetationMontane Wet MeadowsG3S21
Carex praegracilis Herbaceous VegetationClustered Sedge WetlandG3G4S21
Carex vernacula Herbaceous VegetationAlpine WetlandsGUS110
Picea pungens / Alnus incana WoodlandMontane Riparian ForestsG3S317
Picea pungens / Cornus sericea WoodlandMontane Riparian ForestG4S21
Populus angustifolia - Juniperus scopulorum WoodlandMontane Riparian ForestG2G3S313
Populus angustifolia - Picea pungens / Alnus incana WoodlandMontane Riparian ForestsG3S314
Populus angustifolia - Pseudotsuga menziesii WoodlandMontane Riparian ForestG3S22
Populus angustifolia / Alnus incana WoodlandMontane Riparian ForestG3S315
Populus angustifolia / Betula occidentalis WoodlandMontane Riparian ForestG3S35
Populus angustifolia / Crataegus rivularis WoodlandNarrowleaf Cottonwood Riparian ForestsG2?S25
Populus angustifolia / Rhus trilobata WoodlandNarrowleaf Cottonwood/SkunkbrushG3S34
Populus angustifolia / Salix (monticola, drummondiana, lucida) WoodlandNarrowleaf Cottonwood/Mixed Willows Montane Riparian ForestG3S24
Populus angustifolia / Salix irrorata WoodlandFoothills Riparian WoodlandG2S22
Populus angustifolia / Salix ligulifolia - Shepherdia argentea WoodlandNarrowleaf Cottonwood Riparian ForestsG1S317
Populus angustifolia / Symphoricarpos albus WoodlandNarrowleaf Cottonwood/Snowberry Montane Riparian ForestG2QS11
Populus tremuloides / Alnus incana ForestMontane Riparian ForestsG3S31
Populus tremuloides / Cornus sericea ForestMontane Riparian WoodlandG4S23
Pseudotsuga menziesii / Cornus sericea WoodlandLower Montane Riparian ForestsG4S23
Salix bebbiana ShrublandMontane Willow CarrsG3?S22
Salix brachycarpa / Carex aquatilis ShrublandSubalpine Riparian/Wetland CarrG2G3S21
Salix drummondiana / Calamagrostis canadensis ShrublandLower Montane Willow CarrsG3S32
Salix drummondiana / Carex utriculata ShrublandMontane Willow CarrG4S21
Salix geyeriana - Salix monticola / Calamagrostis canadensis ShrublandMontane Willow CarrsG3S25
Salix ligulifolia ShrublandMontane Willow CarrG2G3S33
Salix lucida ssp. caudata Shrubland [Provisional]Montane Riparian ShrublandG3QS21
Salix monticola / Carex aquatilis ShrublandMontane Riparian Willow CarrG3S21
Salix monticola / Mesic Graminoids ShrublandMontane Riparian Willow CarrG3S39
Salix planifolia / Calamagrostis canadensis ShrublandSubalpine Riparian Willow CarrG4S21
Salix planifolia / Carex utriculata ShrublandDiamondleaf Willow / Beaked SedgeGNRS21
Salix planifolia / Mesic Forbs Shrubland [Provisional]Planeleaf Willow/Mesic ForbsG4S21
Salix wolfii / Mesic Forbs ShrublandSubalpine Riparian Willow CarrG3S31
Shepherdia argentea ShrublandFoothills Riparian ShrublandG3G4S28
Sporobolus airoides Southern Plains Herbaceous VegetationGreat Plains Salt MeadowsG3QS21
  • Nonvascular Plants

State Scientific NameState Common NameGRankSRankCount
Sphagnum angustifoliumG5S215
Sphagnum balticumG5S18
Sphagnum girgensohniiG5S16
Sphagnum platyphyllumG5S1S25
  • Reptiles

State Scientific NameState Common NameGRankSRankCount
Lampropeltis getulaCommon KingsnakeG5S13
  • Vascular Plants

State Scientific NameState Common NameGRankSRankCount
Carex diandralesser panicled sedgeG5S12
Carex limosamud sedgeG5S25
Carex oreocharisa sedgeG3S22
Carex retrorsaretrorse sedgeG5S19
Carex viridulagreen sedgeG5S113
Castilleja lineatamarsh-meadow indian-paintbrushG4?S2S31
Drosera anglicaEnglish sundewG5S11
Epipactis giganteagiant helleborineG4S1S24
Erigeron philadelphicusPhiladelphia fleabaneG5S13
Eriophorum altaicum var. neogaeumAltai cottongrassG4?T3T4S323
Eriophorum chamissonisG5S13
Hippochaete variegatavariegated scouringrushG5S13
Isoetes setacea ssp. muricataspiny-spored quillwortG5?T5?S23
Liatris ligulistylisgay-featherG5?S21
Listera borealisnorthern twaybladeG4S26
Oenothera coloradensis ssp. neomexicanaNew Mexico butterfly weedG3T3S16
Parnassia kotzebueiKotzebue's grass-of-parnassusG5S22
Salix candidahoary or silver willowG5S21
Salix serissimaautumn willowG5S11
Sisyrinchium demissumblue-eyed grassG5S22
Utricularia minorlesser bladderwortG5S24