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Dixie Valley toad

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31: 379:(NEPA), an Aquatic Resources Monitoring and Mitigation Plan (ARMMP) was required to be developed before the project could begin construction. The purpose of the monitoring and mitigation plan is to ensure that significant adverse effects on aquatic resources (water resources, riparian and wetland vegetation, and aquatic special status species) do not occur. The ARMMP was developed in close coordination between the developer and the BLM prior to the BLM's finding of no significant impact in 2021. 97: 50: 72: 817: 394:, agreed in August to temporarily cease construction and later asked that the judge allow it to scale back its plans by 80%. A permanent decision to list the species as endangered was published and took effect on December 2, 2022. 314:) until physical and genetic analyses found it to be a separate species, and described it as such in 2017. It is descended from an ancestor that inhabited the large lakes and wetlands that covered the 563:"A diamond in the rough desert shrublands of the Great Basin in the Western United States: A new cryptic toad species (Amphibia: Bufonidae: Bufo ( Anaxyrus )) discovered in Northern Nevada" 1033: 992: 346:
It can be physically distinguished from the western toad by the scattered gold-colored flecks that cover its olive body, and is also the smallest member of the
704: 334:, one of the hottest and most geothermally active systems in the region. The surrounding areas are largely arid land with few aquatic resources, isolating 361:
While it is considered locally abundant within its extremely small range, environmentalist groups believe that it may be threatened by plans to build a
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plant, alleging that operations may degrade the marshland that it lives in by drying up the springs.
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The Dixie Valley toad is found only in a small complex of vegetated spring-fed marshlands in
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until the receding water isolated the different populations, leading to speciation.
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Tracy, C. Richard; Simandle, Eric T.; Gordon, Michelle R. (2017-07-06).
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It was formerly considered an isolated population of the common
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As part of an environmental review performed by the
840: 390:on a temporary, emergency basis. The developer, 8: 411:IUCN SSC Amphibian Specialist Group (2022). 1034:IUCN Red List critically endangered species 828: 70: 48: 29: 20: 578: 624: 622: 457:Environmental Conservation Online System 505:Integrated Taxonomic Information System 476: 474: 403: 7: 556: 554: 552: 550: 548: 523: 521: 386:designated the Dixie Valley toad an 501:(Gordon, Simandle and Tracy, 2017)" 422:IUCN Red List of Threatened Species 793:Sonner, Scott (November 3, 2022). 529:"AmphibiaWeb - Anaxyrus williamsi" 459:. U.S. Fish & Wildlife Service 237:Gordon, Simandle & Tracy, 2017 14: 759:Sonner, Scott (19 October 2022). 377:National Environmental Policy Act 815: 95: 1054:Amphibians of the United States 682:GeoEnergy, Think (2021-11-24). 1: 731:EPlanning, BLM (2021-11-23). 703:EPlanning, BLM (2020-01-01). 629:EPlanning, BLM (2017-05-01). 1059:Amphibians described in 2017 657:Grega, Kelcie (2019-12-02). 338:from the rest of the world. 1075: 580:10.11646/zootaxa.4290.1.7 384:Fish and Wildlife Service 373:Bureau of Land Management 231: 224: 197: 190: 92:Scientific classification 90: 68: 46: 37: 28: 23: 429:: e.T181492000A181937150 326:Distribution and habitat 298:) about 49 years prior. 1049:Endemic fauna of Nevada 1039:ESA endangered species 55:Critically Endangered 824:at Wikimedia Commons 449:"Dixie Valley Toad ( 16:Species of amphibian 382:In April 2022, the 289:extinct in the wild 40:Conservation status 884:Anaxyrus-williamsi 842:Anaxyrus williamsi 822:Anaxyrus williamsi 499:Anaxyrus williamsi 451:Anaxyrus williamsi 415:Anaxyrus williamsi 392:Ormat Technologies 388:endangered species 252:Anaxyrus williamsi 201:Anaxyrus williamsi 24:Dixie Valley toad 1021: 1020: 1006:Open Tree of Life 910:Dixie-Valley-toad 834:Taxon identifiers 820:Media related to 740:eplanning.blm.gov 712:eplanning.blm.gov 638:eplanning.blm.gov 247:Dixie Valley toad 243: 242: 238: 183:A. williamsi 85: 63: 1066: 1014: 1013: 1001: 1000: 988: 987: 975: 974: 962: 961: 949: 948: 936: 935: 923: 922: 913: 912: 900: 899: 887: 886: 874: 873: 861: 860: 859: 829: 819: 803: 802: 790: 784: 775: 769: 768: 756: 750: 749: 747: 746: 737: 728: 722: 721: 719: 718: 709: 700: 694: 693: 691: 690: 679: 673: 672: 670: 669: 654: 648: 647: 645: 644: 635: 626: 617: 616: 614: 613: 599: 593: 592: 582: 558: 543: 542: 540: 539: 525: 516: 515: 513: 511: 493: 487: 478: 469: 468: 466: 464: 445: 439: 438: 436: 434: 408: 366:geothermal power 353:in the region. 279:in the state of 277:Churchill County 236: 203: 100: 99: 79: 74: 73: 57: 52: 51: 33: 21: 1074: 1073: 1069: 1068: 1067: 1065: 1064: 1063: 1024: 1023: 1022: 1017: 1009: 1004: 996: 991: 983: 978: 970: 965: 957: 952: 944: 939: 931: 926: 918: 916: 908: 903: 895: 890: 882: 877: 869: 864: 855: 854: 849: 836: 812: 807: 806: 792: 791: 787: 776: 772: 758: 757: 753: 744: 742: 735: 730: 729: 725: 716: 714: 707: 702: 701: 697: 688: 686: 681: 680: 676: 667: 665: 663:lasvegassun.com 656: 655: 651: 642: 640: 633: 628: 627: 620: 611: 609: 601: 600: 596: 560: 559: 546: 537: 535: 533:amphibiaweb.org 527: 526: 519: 509: 507: 495: 494: 490: 479: 472: 462: 460: 447: 446: 442: 432: 430: 410: 409: 405: 400: 359: 351:species complex 344: 328: 304: 220: 205: 199: 186: 94: 86: 75: 71: 64: 53: 49: 42: 17: 12: 11: 5: 1072: 1070: 1062: 1061: 1056: 1051: 1046: 1041: 1036: 1026: 1025: 1019: 1018: 1016: 1015: 1002: 989: 976: 963: 950: 937: 924: 914: 901: 888: 875: 862: 846: 844: 838: 837: 832: 826: 825: 811: 810:External links 808: 805: 804: 785: 770: 751: 723: 695: 674: 649: 618: 594: 573:(1): 123–139. 544: 517: 488: 470: 440: 402: 401: 399: 396: 358: 355: 343: 340: 327: 324: 303: 300: 267:in the family 257:Bufo williamsi 241: 240: 234:Bufo williamsi 229: 228: 222: 221: 206: 195: 194: 188: 187: 180: 178: 174: 173: 166: 162: 161: 156: 152: 151: 146: 142: 141: 136: 132: 131: 126: 122: 121: 116: 112: 111: 106: 102: 101: 88: 87: 69: 66: 65: 47: 44: 43: 38: 35: 34: 26: 25: 15: 13: 10: 9: 6: 4: 3: 2: 1071: 1060: 1057: 1055: 1052: 1050: 1047: 1045: 1042: 1040: 1037: 1035: 1032: 1031: 1029: 1012: 1007: 1003: 999: 994: 990: 986: 981: 977: 973: 968: 964: 960: 955: 951: 947: 942: 938: 934: 929: 925: 921: 915: 911: 906: 902: 898: 893: 889: 885: 880: 876: 872: 867: 863: 858: 852: 848: 847: 845: 843: 839: 835: 830: 823: 818: 814: 813: 809: 800: 796: 789: 786: 783: 780: 774: 771: 766: 762: 755: 752: 741: 734: 727: 724: 713: 706: 699: 696: 685: 678: 675: 664: 660: 653: 650: 639: 632: 625: 623: 619: 608: 604: 598: 595: 590: 586: 581: 576: 572: 568: 564: 557: 555: 553: 551: 549: 545: 534: 530: 524: 522: 518: 506: 502: 500: 492: 489: 486: 483: 477: 475: 471: 458: 454: 452: 444: 441: 428: 424: 423: 418: 416: 407: 404: 397: 395: 393: 389: 385: 380: 378: 374: 369: 367: 364: 356: 354: 352: 349: 341: 339: 337: 333: 325: 323: 321: 317: 313: 309: 301: 299: 297: 293: 290: 286: 285:United States 282: 278: 274: 270: 266: 262: 258: 254: 253: 248: 239: 235: 230: 227: 223: 218: 214: 210: 204: 202: 196: 193: 192:Binomial name 189: 185: 184: 179: 176: 175: 172: 171: 167: 164: 163: 160: 157: 154: 153: 150: 147: 144: 143: 140: 137: 134: 133: 130: 127: 124: 123: 120: 117: 114: 113: 110: 107: 104: 103: 98: 93: 89: 83: 78: 67: 61: 56: 45: 41: 36: 32: 27: 22: 19: 841: 798: 788: 773: 764: 754: 743:. 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It is 226:Synonyms 215:, & 213:Simandle 170:Anaxyrus 155:Family: 139:Amphibia 129:Chordata 125:Phylum: 119:Animalia 105:Domain: 60:IUCN 3.1 1011:7069923 998:2575947 959:1104083 799:AP News 765:AP News 567:Zootaxa 357:Threats 318:in the 283:in the 273:endemic 261:species 259:) is a 219:, 2017) 165:Genus: 145:Order: 135:Class: 80: ( 58: ( 946:552534 917:ECOS: 905:Center 587:  510:3 June 463:3 June 281:Nevada 209:Gordon 920:10635 897:66M6K 782:20336 736:(PDF) 708:(PDF) 634:(PDF) 485:73971 217:Tracy 149:Anura 993:NCBI 967:IUCN 954:ITIS 928:GBIF 871:8649 585:ISSN 571:4290 512:2023 465:2023 435:2022 427:2022 275:to 265:toad 245:The 892:CoL 879:ASW 777:87 575:doi 480:87 263:of 255:or 82:ESA 1030:: 1008:: 995:: 982:: 969:: 956:: 943:: 930:: 907:: 894:: 881:: 868:: 853:: 797:. 779:FR 763:. 738:. 710:. 661:. 636:. 621:^ 605:. 583:. 569:. 565:. 547:^ 531:. 520:^ 503:. 482:FR 473:^ 455:. 453:)" 425:. 419:. 211:, 801:. 767:. 748:. 720:. 692:. 671:. 646:. 615:. 591:. 577:: 541:. 514:. 497:" 467:. 437:. 417:" 413:" 310:( 294:( 249:( 207:( 84:) 62:)

Index


Conservation status
Critically Endangered
IUCN 3.1
Endangered
ESA
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Amphibia
Anura
Bufonidae
Anaxyrus
Binomial name
Gordon
Simandle
Tracy
Synonyms
species
toad
Bufonidae
endemic
Churchill County
Nevada
United States
extinct in the wild
Wyoming toad
western toad

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