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Greater siren

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555:; however, recent studies have refuted this claim. Greater sirens live in wetlands, preferring those with a slow or nonexistent current and a thick layer of organic material. They are capable of inhabiting seasonal and permanent wetlands given their ability to aestivate, and will burrow into mud if their wetland dries up. They are predominately found in the deep benthic zone where aquatic insects are most abundant. Associated habitat for greater sirens includes vegetative ditches, and various other forms of slow, or stagnant bodies of water. Often during the day, they seek refuges from predators and are found under logs and various other structures. 363:. Greater sirens measure around 1.5 cm (0.59 in) in length upon hatching and then grow to lengths ranging from 18 to 97 cm (7 to 38 in). Weight can range from 55 to 1,000 g (1.9 to 35.3 oz). Coloration varies throughout their range, but they are generally an olive or gray color with small yellow or green dots on their sides. They have about 36 to 40 costal grooves between their armpits and their cloaca. Younger sirens also have a light stripe along their sides, which fades with age. The front legs, each with four toes, are so small that they can be hidden in the gills. 381: 393: 303: 182: 109: 137: 118: 159: 409: 1441: 464:. In addition, materials that are non-animal were found in their digestive tract added to amounts of 75% or greater. The oral morphology of the greater siren contribute little to the mastication of food and does not rupture or grind ingested invertebrates, algae, or plants requiring prior fermentation in the gut. 571:
is difficult to capture because of their preference for areas with thick vegetation. Standard methods such as dip-netting, seining, and dredges are ineffective in such habitats. The use of aquatic funnel traps, commercially produced to capture crayfish, has been found effective for use on Siren and
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possess a pair of flagella, and their courtship behavior is unknown. Mating occurs in February and March. After the eggs have been laid, the father will continuously fan its tail back and forth over or through the nest. The father will aggressively guard the nest from potential threats, including
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for multiple years if necessary, burrowing into mud and exuding a cocoon of dead skin cells. This has been seen during times of drought and hydroperiod fluctuations. The record can be up to 3 years. Known predators include the
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and spend the day in dense vegetation. Their lifespan in the wild is unknown, but in captivity they can live up to 25 years. Greater sirens can vocalize, producing clicks or yelps sounding similar to the call of the
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other sirens, and even the mother of the clutch. After 2 months, the eggs hatch, and the fathers depart from the nest. Youth live in shallower water than adults, often among the roots of
359:, as are all sirens. They lack hindlimbs as well as a pelvic girdle, and have external gills all throughout their lives along with small lungs. They lack eyelids, and have an unfused 588:, although they have been extirpated from some of their former range due to habitat loss. They are protected under Mexican law and are assigned to the "Special Protection" category. 472:
Greater sirens play a crucial role in aquatic food webs and have been described as midlevel predators. Sirens swallow molluscs whole and will pass the shell as waste. They are
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Snodgrass, Joel; Ackerman, Joel; Bryan, Albert; Burger, Joanna (1999). "Influence of hydroperiod, isolation, and heterospecifics on the distribution of aquatic salamanders (
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Heisler, N.; Forcht, G.; Ultsch, G.R.; Anderson, J.F. (1982). "Acid-base regulation in response to environmental hypercapnia in two aquatic salamanders,
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Hill, Robert L.; Mendelson III, Joseph R.; Stabile, Jennifer L. (2015). "Direct Observation and Review of Herbivory in Sirenidae (Amphibia: Caudata)".
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Amphiuma species and there is no risk of drowning the animals. Each trap consists of the trap body, three funnels, and a neck with a lid at the top.
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Schalk, Christopher M.; Crawford, Brian A.; Luhring, Thomas M. (2009). "A Note on Predation of the Greater Siren (
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system over their small eyes. It is possible that they are capable of sensing disturbances in electrical fields.
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Pryor, G. S.; German, D. P.; Bjorndal, K. A. (2006). "Gastrointestinal Fermentation in Greater Sirens (
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Tomaschke, Phillip (2023). "The Greater Siren: An Overview of Captive Care and Breeding".
512: 360: 939: 1740: 1630: 783: 648: 639: 498:, indicating that this species could be an additional predator of the greater siren. 339:, the greater siren resides in the coastal plains of the southeastern United States. 336: 327: 292: 253: 146: 141: 59: 1422: 1013: 117: 1557: 371: 356: 1406: 843: 1708: 1643: 1591: 1513: 1498: 1382: 507: 34: 1347: 1322: 720: 544: 536: 425: 408: 348: 233: 79: 44: 1489: 1414: 1257: 1167: 1056: 911:
Population Genetics of Amphiuma means and Siren lacertina in Central Florida
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Martin, Karen M.; Hutchison, Victor H. (1979). "Ventilatory Activity in
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In terms of sensory organs, greater sirens rely on both a modified
540: 461: 453: 407: 1453: 457: 449: 1570: 1464: 460:), although they have been observed to eat vegetation such as 1381:
Johnson, Steve A.; Barichivich, William J. (2004-06-01).
1473: 1234:"The Energetics of Estivating Sirenid Salamanders ( 452:) with a possible preference for molluscs (such as 1138:Burch, Paul Randolph; Wood, John Thornton (1955). 1323:"Summer microhabitat use of the Greater Siren ( 737:Vitt, Laurie J.; Caldwell, Janalee P. (2014). 663:10.2305/IUCN.UK.2022-1.RLTS.T59492A53988286.en 586:International Union for Conservation of Nature 523:Greater sirens inhabit the coastal plain from 1368:Catalogue of American Amphibians and Reptiles 638:IUCN SSC Amphibian Specialist Group. (2022). 8: 914:(M.S. thesis). University of South Florida. 1461: 1321:Luhring; Crawford, B.; Schalk, C. (2010). 950:. University of Michigan Museum of Zoology 301: 157: 135: 116: 107: 20: 1346: 661: 448:) and aquatic vertebrates (such as small 325:and one of the five members of the genus 597: 376: 347:The greater siren is the third longest 1452:Kristina Sorensen; Mark E. Hostetler. 1111:"POPULATION ECOLOGY OF GREATER SIREN, 933: 931: 929: 927: 925: 923: 921: 633: 631: 629: 627: 741:(Fourth ed.). London: Elsevier. 709:Population ecology of greater siren, 420:and prey upon invertebrates (such as 335:and one of the largest amphibians in 7: 994:Notes of the Southeastern Naturalist 838: 836: 834: 832: 830: 732: 730: 1747:IUCN Red List least concern species 1033:, in an Alabama Coastal Plain Pond" 1029:"Food Habits of the Greater Siren, 649:IUCN Red List of Threatened Species 1304:Responsible Herpetoculture Journal 14: 1383:"A Simple Technique for Trapping 852:Savannah River Ecology Laboratory 580:Greater sirens are classified as 551:was tentatively determined to be 1439: 1391:, and Other Aquatic Vertebrates" 1285:Bulletin of Chicago Herptologica 806:"Greater Siren – North Carolina" 535:. A population of sirens in the 391: 379: 180: 1762:Amphibians of the United States 386:Greater siren skull & hyoid 1454:"Giant Salamanders of Florida" 1197:) among depression wetlands". 610:Linnaeus 1766 (greater siren)" 1: 1407:10.1080/02705060.2004.9664540 1395:Journal of Freshwater Ecology 975:Österdam, 1766 Greater Siren" 1767:Amphibians described in 1766 1362:Martof, Bernard S. (1973). " 1144:Feeding on Clams and Snails" 812:. 2007-09-22. Archived from 784:10.1016/0034-5687(82)90070-6 1772:Taxa named by Carl Linnaeus 351:in the Western Hemisphere. 1788: 1752:NatureServe secure species 1348:10.1163/156853810791069155 706:Luhring, Thomas Marshall. 412:Greater siren out of water 1366:Linnaeus Greater Siren". 1331:) in an isolated wetland" 1327:) and Two-toed amphiuma ( 695:. The Nature Conservancy. 300: 282: 275: 177:Scientific classification 175: 155: 133: 124: 115: 106: 23: 1456:. University of Florida. 1027:Hanlin, Hugh G. (1978). 854:. University of Georgia. 519:Distribution and habitat 479:American green tree frog 1240:Pseudobranchus striatus 1232:Etheridge, Kay (1990). 908:Deyle, Anna C. (2011). 559:Interaction with humans 1084:Journal of Herpetology 875:Journal of Herpetology 873:(Amphibia, Caudata)". 772:Respiration Physiology 413: 398:Greater siren skeleton 1696:Paleobiology Database 969:Meredith J. Mahoney. 938:McKenzie, Kimberley. 656:: e.T59492A53988286. 411: 331:. The largest of the 1448:at Wikimedia Commons 1119:esploro.libs.uga.edu 1006:10.1656/058.014.0104 948:Animal Diversity Web 867:Amphiuma tridactylum 468:Ecology and behavior 16:Species of amphibian 693:NatureSrve Explorer 620:on 9 December 2023. 564:Trapping techniques 481:. They are able to 416:Greater sirens are 127:Conservation status 488:American alligator 414: 1734: 1733: 1683:Open Tree of Life 1467:Taxon identifiers 1444:Media related to 1335:Amphibia Reptilia 1109:Luhring, Thomas. 1096:10.1670/163-05A.1 748:978-0-12-386919-7 496:two-toed amphiuma 309: 308: 268:S. lacertina 170: 150: 1779: 1727: 1726: 1717: 1716: 1704: 1703: 1691: 1690: 1678: 1677: 1665: 1664: 1652: 1651: 1639: 1638: 1626: 1625: 1613: 1612: 1600: 1599: 1587: 1586: 1574: 1573: 1561: 1560: 1548: 1547: 1535: 1534: 1522: 1521: 1509: 1508: 1507: 1494: 1493: 1492: 1462: 1457: 1443: 1427: 1426: 1378: 1372: 1371: 1359: 1353: 1352: 1350: 1318: 1312: 1311: 1299: 1293: 1292: 1276: 1270: 1269: 1229: 1223: 1222: 1186: 1180: 1179: 1140:"The Salamander 1135: 1129: 1128: 1126: 1125: 1106: 1100: 1099: 1075: 1069: 1068: 1024: 1018: 1017: 989: 983: 982: 966: 960: 959: 957: 955: 935: 916: 915: 905: 899: 898: 862: 856: 855: 844:"Greater Siren ( 840: 825: 824: 822: 821: 802: 796: 795: 759: 753: 752: 734: 725: 724: 703: 697: 696: 681: 675: 674: 672: 670: 665: 635: 622: 621: 616:. Archived from 602: 525:Washington, D.C. 395: 383: 368:Jacobson's organ 305: 288: 185: 184: 164: 161: 160: 144: 139: 138: 120: 111: 101: 31: 27:Temporal range: 21: 1787: 1786: 1782: 1781: 1780: 1778: 1777: 1776: 1737: 1736: 1735: 1730: 1722: 1720: 1712: 1707: 1699: 1694: 1686: 1681: 1673: 1670:Observation.org 1668: 1660: 1655: 1647: 1642: 1634: 1629: 1621: 1616: 1608: 1603: 1595: 1590: 1582: 1577: 1569: 1564: 1556: 1551: 1543: 1538: 1532:Siren-lacertina 1530: 1525: 1517: 1512: 1505:Siren lacertina 1503: 1502: 1497: 1488: 1487: 1482: 1475:Siren lacertina 1469: 1451: 1446:Siren lacertina 1436: 1431: 1430: 1385:Siren lacertina 1380: 1379: 1375: 1364:Siren lacertina 1361: 1360: 1356: 1329:Amlphiuma means 1325:Siren lacertina 1320: 1319: 1315: 1301: 1300: 1296: 1281:Siren lacertina 1278: 1277: 1273: 1236:Siren lacertina 1231: 1230: 1226: 1211:10.2307/1447391 1188: 1187: 1183: 1160:10.2307/1440485 1142:Siren lacertina 1137: 1136: 1132: 1123: 1121: 1113:SIREN LACERTINA 1108: 1107: 1103: 1080:Siren lacertina 1077: 1076: 1072: 1049:10.2307/1443585 1031:Siren lacertina 1026: 1025: 1021: 991: 990: 986: 973:Siren lacertina 968: 967: 963: 953: 951: 942:Siren lacertina 937: 936: 919: 907: 906: 902: 887:10.2307/1563477 871:Siren lacertina 864: 863: 859: 846:Siren lacertina 842: 841: 828: 819: 817: 804: 803: 799: 764:Siren lacertina 761: 760: 756: 749: 736: 735: 728: 711:Siren lacertina 705: 704: 700: 687:Siren lacertina 683: 682: 678: 668: 666: 642:Siren lacertina 637: 636: 625: 608:Siren lacertina 604: 603: 599: 594: 578: 566: 561: 521: 513:water hyacinths 504: 470: 456:and freshwater 406: 399: 396: 387: 384: 361:pectoral girdle 345: 318:Siren lacertina 296: 290: 286:Siren lacertina 284: 271: 179: 171: 162: 158: 151: 140: 136: 129: 102: 100: 99: 98: 97: 92: 87: 82: 77: 72: 67: 62: 57: 52: 47: 42: 37: 30:Blancan–present 29: 28: 25: 17: 12: 11: 5: 1785: 1783: 1775: 1774: 1769: 1764: 1759: 1754: 1749: 1739: 1738: 1732: 1731: 1729: 1728: 1718: 1705: 1692: 1679: 1666: 1653: 1640: 1627: 1614: 1601: 1588: 1575: 1562: 1549: 1536: 1523: 1510: 1495: 1479: 1477: 1471: 1470: 1465: 1459: 1458: 1449: 1435: 1434:External links 1432: 1429: 1428: 1401:(2): 263–269. 1389:Amphiuma means 1373: 1354: 1341:(2): 251–256. 1313: 1294: 1271: 1252:(4): 407–414. 1224: 1205:(1): 107–113. 1181: 1154:(3): 255–256. 1130: 1101: 1090:(1): 112–117. 1070: 1043:(2): 358–360. 1019: 984: 961: 917: 900: 881:(4): 427–434. 857: 826: 797: 768:Amphiuma means 754: 747: 726: 698: 676: 623: 596: 595: 593: 590: 577: 574: 565: 562: 560: 557: 520: 517: 503: 500: 469: 466: 405: 402: 401: 400: 397: 390: 388: 385: 378: 344: 341: 307: 306: 298: 297: 291: 280: 279: 273: 272: 265: 263: 259: 258: 251: 247: 246: 241: 237: 236: 231: 227: 226: 221: 217: 216: 211: 207: 206: 201: 197: 196: 191: 187: 186: 173: 172: 156: 153: 152: 134: 131: 130: 125: 122: 121: 113: 112: 104: 103: 95: 94: 93: 88: 83: 78: 73: 68: 63: 58: 53: 48: 43: 38: 33: 32: 26: 15: 13: 10: 9: 6: 4: 3: 2: 1784: 1773: 1770: 1768: 1765: 1763: 1760: 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287: 281: 278: 277:Binomial name 274: 270: 269: 264: 261: 260: 257: 256: 252: 249: 248: 245: 242: 239: 238: 235: 232: 229: 228: 225: 222: 219: 218: 215: 212: 209: 208: 205: 202: 199: 198: 195: 192: 189: 188: 183: 178: 174: 168: 154: 148: 143: 142:Least Concern 132: 128: 123: 119: 114: 110: 105: 91: 86: 81: 76: 71: 66: 61: 56: 51: 46: 41: 36: 24:Greater siren 22: 19: 1474: 1398: 1394: 1388: 1384: 1376: 1367: 1363: 1357: 1338: 1334: 1328: 1324: 1316: 1307: 1303: 1297: 1288: 1284: 1280: 1274: 1249: 1245: 1239: 1235: 1227: 1202: 1198: 1194: 1190: 1184: 1151: 1147: 1141: 1133: 1122:. Retrieved 1118: 1112: 1104: 1087: 1083: 1079: 1073: 1040: 1036: 1030: 1022: 1000:(1): N5–N9. 997: 993: 987: 978: 972: 964: 952:. Retrieved 947: 941: 910: 903: 878: 874: 870: 866: 860: 851: 845: 818:. Retrieved 814:the original 809: 800: 775: 771: 767: 763: 757: 738: 712: 708: 701: 692: 686: 679: 669:11 September 667:. Retrieved 653: 647: 641: 618:the original 613: 607: 600: 579: 576:Conservation 569:S. lacertina 568: 567: 553:S. lacertina 552: 522: 505: 471: 415: 372:lateral line 365: 357:paedomorphic 353:S. lacertina 352: 346: 326: 317: 316: 312: 310: 285: 283: 267: 266: 254: 18: 1709:SeaLifeBase 1644:NatureServe 1592:iNaturalist 1514:AmphibiaWeb 1499:Wikispecies 979:AmphibiaWeb 739:Herpetology 614:Fossilworks 508:spermatozoa 426:crustaceans 418:carnivorous 343:Description 167:NatureServe 1757:Sirenoidea 1741:Categories 1310:(7): 9–15. 1124:2023-04-25 820:2013-01-03 721:1256711146 592:References 545:Tamaulipas 537:Rio Grande 430:gastropods 349:salamander 1415:0270-5060 1258:0018-0831 1168:0045-8511 1057:0045-8511 492:mud snake 483:aestivate 474:nocturnal 323:amphibian 262:Species: 244:Sirenidae 200:Kingdom: 194:Eukaryota 1649:2.106536 1610:11008687 1484:Wikidata 1423:22870356 1195:Amphiuma 1014:86233204 954:25 March 502:Breeding 490:and the 446:crayfish 442:molluscs 434:bivalves 321:) is an 293:Linnaeus 240:Family: 224:Amphibia 214:Chordata 210:Phylum: 204:Animalia 190:Domain: 147:IUCN 3.1 1724:7500576 1584:2432068 1490:Q629332 1266:3892939 1219:1447391 1176:1440485 1065:1443585 792:6815749 584:by the 539:around 533:Alabama 529:Florida 438:spiders 422:insects 250:Genus: 234:Urodela 230:Order: 220:Class: 165: ( 163:Secure 145: ( 96:↓ 1721:uBio: 1701:110834 1688:242638 1675:205709 1662:307977 1623:775942 1571:331129 1545:170772 1421:  1413:  1264:  1256:  1217:  1199:Copeia 1174:  1166:  1148:Copeia 1063:  1055:  1037:Copeia 1012:  895:156347 893:  790:  745:  719:  549:Mexico 506:Their 454:snails 444:, and 370:and a 333:sirens 295:, 1766 1714:61537 1636:59492 1605:IRMNG 1597:27864 1558:4XR2L 1419:S2CID 1262:JSTOR 1215:JSTOR 1191:Siren 1172:JSTOR 1061:JSTOR 1010:S2CID 891:JSTOR 541:Texas 527:, to 462:algae 458:clams 328:Siren 255:Siren 1657:NCBI 1631:IUCN 1618:ITIS 1579:GBIF 1540:BOLD 1519:4316 1411:ISSN 1339:2010 1291:(4). 1283:)". 1254:ISSN 1238:and 1203:1999 1193:and 1164:ISSN 1152:1955 1082:)". 1053:ISSN 1041:1978 956:2018 869:and 788:PMID 766:and 743:ISBN 717:OCLC 671:2024 654:2022 543:and 531:and 450:fish 404:Diet 311:The 35:PreꞒ 1566:EoL 1553:CoL 1527:ASW 1403:doi 1343:doi 1207:doi 1156:doi 1092:doi 1045:doi 1002:doi 883:doi 780:doi 770:". 658:doi 547:in 355:is 1743:: 1711:: 1698:: 1685:: 1672:: 1659:: 1646:: 1633:: 1620:: 1607:: 1594:: 1581:: 1568:: 1555:: 1542:: 1529:: 1516:: 1501:: 1486:: 1417:. 1409:. 1399:19 1397:. 1393:. 1387:, 1337:. 1333:. 1306:. 1289:44 1287:. 1260:. 1250:46 1248:. 1244:. 1242:)" 1213:. 1201:. 1170:. 1162:. 1150:. 1146:. 1117:. 1088:40 1086:. 1059:. 1051:. 1039:. 1035:. 1008:. 998:14 996:. 977:. 946:. 920:^ 889:. 879:13 877:. 850:. 848:)" 829:^ 808:. 786:. 776:49 774:. 729:^ 715:. 691:. 652:. 646:. 626:^ 612:. 515:. 440:, 436:, 432:, 428:, 424:, 85:Pg 1425:. 1405:: 1370:. 1351:. 1345:: 1308:1 1268:. 1221:. 1209:: 1178:. 1158:: 1127:. 1115:" 1098:. 1094:: 1067:. 1047:: 1016:. 1004:: 981:. 971:" 958:. 944:" 940:" 897:. 885:: 823:. 794:. 782:: 751:. 723:. 689:" 685:" 673:. 660:: 644:" 640:" 606:" 315:( 169:) 149:) 90:N 80:K 75:J 70:T 65:P 60:C 55:D 50:S 45:O 40:Ꞓ

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Conservation status
Least Concern
IUCN 3.1
NatureServe
Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Amphibia
Urodela
Sirenidae
Siren
Binomial name
Linnaeus

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