Knowledge (XXG)

Foveaux shag

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There are less than 2500 Foveaux shags remaining. The population seems stable and retains much of its genetic diversity in comparison to the Otago shag, which is continuing to decline. Foveaux shags have fared better than Otago shags because they nest on inaccessible islands just offshore.
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Nevertheless, their small population size make both species vulnerable to extinction, and conservation efforts will need to be tailored to each species' demographic history, genetic variation, and restricted geographic distribution.
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on islands and sea cliffs. Colonies are large enough to be strikingly visible, and are used year after year. They feed in coastal waters less than 30 m deep and are rarely if ever seen inland or far out to sea.
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Rawlence, Nicolas J.; Scofield, R. Paul; Spencer, Hamish G.; Lalas, Chris; Easton, Luke J.; Tennyson, Alan J.D.; Adams, Mark; Pasquet, Eric; Fraser, Cody; Waters, Jonathan M.; Kennedy, Martyn (2016).
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Rawlence, Nicolas J.; Till, Charlotte E.; Scofield, R. Paul; Tennyson, Alan J. D.; Collins, Catherine J.; Lalas, Chris; Loh, Graeme; Matisoo-Smith, Elizabeth; Waters, Jonathan M. (2014).
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Foveaux shags are restricted to Stewart Island and Foveaux Strait, both at present, historically, and prehistorically (based on museum specimens, archaeological remains, and
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In the breeding season, Foveaux shags have dark orange papillae on their face and a bright orange gular pouch. Roughly half of Otago shags have similar facial ornamentation.
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bones); rarely, beach-wrecked birds have been found in Otago. They breed colonially from September onwards, making raised cup nests out of organic material and
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breed together. These large, chunky birds are 68 cm (27 in) long and weigh 1.8–2.9 kg (4–6.4 lbs), slightly smaller than
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is a distinct genus, which would contain amongst other species the Otago, Foveaux, and Chatham shags.
276:. Foveaux and Otago shags probably diverged when populations were split up by lower sea levels in the 1416: 1223: 1183: 1153: 464: 413: 265: 1465: 1178: 1145: 944: 848: 581: 206: 272:, behavioural, and genetic differences supported recognising Foveaux shags as a separate species, 231: 1321: 1073: 701: 164: 38: 1424: 1296: 1140: 1094: 1018: 818: 775: 696: 515: 492: 429: 217: 1429: 404:
Kennedy, Martyn; Spencer, Hamish G. (2014). "Classification of the cormorants of the world".
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shag (Aves, Pelecaniformes, Phalacrocoracidae) from southern South Island of New Zealand"
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Until 2016 Foveaux shags were classified with Otago shags (
369:"Genetic and morphological evidence for two species of 1150: 1353: 1232: 1212: 1192: 1162: 1124: 1083: 1007: 983: 918: 894: 827: 809: 764: 740: 670: 646: 589: 537:"Scientists Solve A Shag-adelic Bird Mystery" 8: 237:Catalogue of the Birds in the British Museum 512:The Field Guide to the Birds of New Zealand 1481:Taxa named by William Robert Ogilvie-Grant 1341: 989: 980: 962: 900: 891: 866: 746: 737: 719: 652: 643: 617: 596: 582: 574: 29: 20: 510:Heather, Barrie; Robertson, Hugh (2015). 486: 476: 388: 377:Zoological Journal of the Linnean Society 291:A recent taxonomic revision argues that 348: 514:. New Zealand: Penguin. p. 290. 406:Molecular Phylogenetics and Evolution 7: 1417:0cd75186-7a1a-4c8e-9526-98b82d947a8f 1293:(imperial cormorant, blue-eyed shag) 362: 360: 358: 356: 354: 352: 564:Foveaux shag discussed on RadioNZ 14: 535:Platt, John R. (25 March 2016). 228:, from which it takes its name. 42: 1: 322:Distribution and conservation 284:were colonised by shags from 209:and in its dark phase as the 1486:Endemic birds of New Zealand 692:Christmas Island frigatebird 478:10.1371/journal.pone.0090769 426:10.1016/j.ympev.2014.06.020 1507: 543:. National Audubon Society 1471:Birds of the South Island 992: 979: 961: 903: 890: 865: 749: 736: 718: 655: 642: 616: 177:Phalacrocorax chalconotus 170: 163: 144: 137: 39:Scientific classification 37: 28: 23: 1174:Double-crested cormorant 1069:White-breasted cormorant 222:Stewart Island / Rakiura 1476:Birds described in 1898 1117:(long-tailed cormorant) 682:Magnificent frigatebird 1246:(Magellanic cormorant) 1076:(Temminck's cormorant) 1049:Little black cormorant 611:(Phalacrocoraciformes) 451:Leucocarbo chalconotus 240: 205:formerly known as the 182:Leucocarbo chalconotus 173:Phalacrocorax stewarti 1255:New Zealand king shag 1110:Little pied cormorant 1044:Black-faced cormorant 687:Ascension frigatebird 234: 201:), together with the 1224:Red-legged cormorant 1184:Flightless cormorant 1154:Spectacled cormorant 974:: Phalacrocoracidae) 878:: Anhingidae · 629:: Fregatidae · 1443:Leucocarbo-stewarti 1355:Leucocarbo stewarti 1179:Neotropic cormorant 1146:Red-faced cormorant 945:Australasian darter 849:Australasian gannet 725:Gannets and boobies 566:Critter of the Week 469:2014PLoSO...990769R 418:2014MolPE..79..249K 207:Stewart Island shag 198:Leucocarbo stewarti 148:Leucocarbo stewarti 1322:South Georgia shag 1257:(rough-faced shag) 1136:Brandt's cormorant 1074:Japanese cormorant 702:Lesser frigatebird 258:Leucocarbo onslowi 241: 213:, is a species of 1453: 1452: 1425:Open Tree of Life 1347:Taxon identifiers 1338: 1337: 1334: 1333: 1330: 1329: 1297:Heard Island shag 1141:Pelagic cormorant 1095:Crowned cormorant 1019:Socotra cormorant 1003: 1002: 957: 956: 953: 952: 914: 913: 861: 860: 857: 856: 776:Blue-footed booby 760: 759: 714: 713: 710: 709: 697:Great frigatebird 666: 665: 521:978-0-143-57092-9 390:10.1111/zoj.12376 189: 188: 106:Phalacrocoracidae 1498: 1446: 1445: 1433: 1432: 1420: 1419: 1410: 1409: 1400: 1399: 1387: 1386: 1374: 1373: 1372: 1342: 1250:Guanay cormorant 1152: 1100:Little cormorant 1054:Indian cormorant 990: 981: 963: 901: 892: 867: 796:Red-footed booby 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1327: 1325: 1324: 1319: 1317:Macquarie shag 1314: 1312:Kerguelen shag 1309: 1307:Antarctic shag 1304: 1299: 1294: 1288: 1283: 1278: 1273: 1268: 1263: 1258: 1252: 1247: 1240: 1238: 1230: 1229: 1227: 1226: 1220: 1218: 1210: 1209: 1207: 1206: 1200: 1198: 1190: 1189: 1187: 1186: 1181: 1176: 1170: 1168: 1160: 1159: 1157: 1156: 1148: 1143: 1138: 1132: 1130: 1122: 1121: 1119: 1118: 1115:Reed cormorant 1112: 1107: 1102: 1097: 1091: 1089: 1081: 1080: 1078: 1077: 1071: 1066: 1061: 1059:Cape cormorant 1056: 1051: 1046: 1041: 1039:Pied cormorant 1036: 1031: 1026: 1024:Bank cormorant 1021: 1015: 1013: 1005: 1004: 1001: 1000: 993: 987: 977: 976: 966: 959: 958: 955: 954: 951: 950: 948: 947: 942: 940:African darter 937: 932: 926: 924: 916: 915: 912: 911: 904: 898: 888: 887: 870: 863: 862: 859: 858: 855: 854: 852: 851: 846: 841: 835: 833: 825: 824: 822: 821: 819:Abbott's booby 815: 813: 807: 806: 804: 803: 798: 793: 788: 783: 781:Peruvian booby 778: 772: 770: 762: 761: 758: 757: 750: 744: 734: 733: 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1407:foveaux-shag 1354: 1271:Chatham shag 1261:Foveaux shag 1260: 1233: 1215:Poikilocarbo 1213: 1193: 1163: 1125: 1084: 1034:Spotted shag 1008: 994: 919: 905: 882: 828: 810: 786:Masked booby 765: 751: 671: 657: 634: 623:Frigatebirds 570:4 March 2016 565: 563: 545:. Retrieved 540: 530: 511: 505: 460: 456: 450: 442: 409: 405: 399: 380: 376: 370: 337: 325: 317: 302: 292: 290: 273: 270:morphometric 262:osteological 257: 249: 247: 236: 210: 197: 196: 193:Foveaux shag 192: 190: 181: 176: 172: 171: 147: 145: 129: 128: 116: 18: 1302:Crozet shag 1286:Bounty shag 1165:Nannopterum 844:Cape gannet 801:Brown booby 791:Nazca booby 412:: 249–257. 313:Otago shags 299:Description 278:Pleistocene 274:L. stewarti 211:bronze shag 1466:Leucocarbo 1460:Categories 1438:Xeno-canto 1266:Otago shag 1235:Leucocarbo 1086:Microcarbo 968:Cormorants 731:: Sulidae) 609:Suliformes 371:Leucocarbo 343:References 293:Leucocarbo 280:, and the 203:Otago shag 184:(in part) 117:Leucocarbo 96:Suliformes 1370:Q24551139 1244:Rock shag 1029:Pitt shag 328:subfossil 305:dimorphic 179:(in part) 124:Species: 62:Kingdom: 56:Eukaryota 1364:Wikidata 811:Papasula 547:15 April 497:24614677 457:PLOS ONE 434:24994028 244:Taxonomy 165:Synonyms 102:Family: 76:Chordata 72:Phylum: 66:Animalia 52:Domain: 1430:6154775 1397:1884673 1384:8521860 1195:Gulosus 996:Species 930:Anhinga 921:Anhinga 907:Species 883:Anhinga 872:Darters 753:Species 673:Fregata 659:Species 635:Fregata 541:Audubon 488:3948693 465:Bibcode 414:Bibcode 260:), and 218:endemic 158:, 1898) 112:Genus: 92:Order: 82:Class: 1414:NZOR: 1404:NZBO: 972:family 876:family 729:family 627:family 518:  495:  485:  432:  309:morphs 239:, 1897 1127:Urile 985:Genus 896:Genus 880:genus 830:Morus 742:Genus 648:Genus 631:genus 605:Order 332:guano 286:Otago 1392:NCBI 1379:GBIF 767:Sula 549:2016 516:ISBN 493:PMID 430:PMID 224:and 215:shag 191:The 86:Aves 483:PMC 473:doi 422:doi 385:doi 381:177 220:to 1462:: 1440:: 1427:: 1394:: 1381:: 1366:: 633:: 607:: 568:, 539:. 491:. 481:. 471:. 459:. 455:. 453:)" 428:. 420:. 410:79 408:. 379:. 375:. 351:^ 315:. 268:, 264:, 1151:† 970:( 885:) 874:( 727:( 637:) 625:( 597:e 590:t 583:v 551:. 524:. 499:. 475:: 467:: 461:9 436:. 424:: 416:: 393:. 387:: 256:( 195:( 154:(

Index


Scientific classification
Edit this classification
Eukaryota
Animalia
Chordata
Aves
Suliformes
Phalacrocoracidae
Leucocarbo
Binomial name
Ogilvie-Grant
Synonyms
Otago shag
Stewart Island shag
shag
endemic
Stewart Island / Rakiura
Foveaux Strait

Chatham shags
osteological
morphological
morphometric
Pleistocene
Chatham Islands
Otago
dimorphic
morphs
Otago shags

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