Decline of wildcelery buds in the lower Detroit River, 1950-85
American wildcelery buds (Vallisneria americana), an abundant food eaten by diving ducks (Aythini) during migrations, decreased in the lower Detroit River of the Great Lakes from 1950 to 1985. Bud densities decreased at 2 (- 14 and - 18 buds/m2) of 5 locations and were similar at 3 (-2, +2, and +3 b...
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| Veröffentlicht in: | The Journal of wildlife management 1990-01, Vol.54 (1), p.72-76 |
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| container_title | The Journal of wildlife management |
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| creator | Schloesser, D.W. (U.S. Fish and Wildlife Service, Ann Arbor, MI) Manny, B.A |
| description | American wildcelery buds (Vallisneria americana), an abundant food eaten by diving ducks (Aythini) during migrations, decreased in the lower Detroit River of the Great Lakes from 1950 to 1985. Bud densities decreased at 2 (- 14 and - 18 buds/m2) of 5 locations and were similar at 3 (-2, +2, and +3 buds/m2) of 5 locations. Net change in all 5 areas combined, however, was a decrease of 36,720,000 buds, a 72% decline. Estimated potential losses of waterfowl feeding days caused by the decreased bud densities were 147,000 for canvasbacks (Aythya valisineria), 241,000 for redhead ducks (A. americana), or 664,000 for lesser scaup (A. affinis). Thus, the decline of wildcelery in the Detroit River may have contributed to decreased use of Michigan migration routes by some waterfowl species between 1950 and 1985. |
| doi_str_mv | 10.2307/3808903 |
| format | Article |
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(U.S. Fish and Wildlife Service, Ann Arbor, MI) ; Manny, B.A</creator><creatorcontrib>Schloesser, D.W. (U.S. Fish and Wildlife Service, Ann Arbor, MI) ; Manny, B.A</creatorcontrib><description>American wildcelery buds (Vallisneria americana), an abundant food eaten by diving ducks (Aythini) during migrations, decreased in the lower Detroit River of the Great Lakes from 1950 to 1985. Bud densities decreased at 2 (- 14 and - 18 buds/m2) of 5 locations and were similar at 3 (-2, +2, and +3 buds/m2) of 5 locations. Net change in all 5 areas combined, however, was a decrease of 36,720,000 buds, a 72% decline. Estimated potential losses of waterfowl feeding days caused by the decreased bud densities were 147,000 for canvasbacks (Aythya valisineria), 241,000 for redhead ducks (A. americana), or 664,000 for lesser scaup (A. affinis). Thus, the decline of wildcelery in the Detroit River may have contributed to decreased use of Michigan migration routes by some waterfowl species between 1950 and 1985.</description><identifier>ISSN: 0022-541X</identifier><identifier>EISSN: 1937-2817</identifier><identifier>DOI: 10.2307/3808903</identifier><identifier>CODEN: JWMAA9</identifier><language>eng</language><publisher>Bethesda, MD: The Wildlife Society</publisher><subject>ALIMENTOS ; Animal and plant ecology ; ANIMAL MIGRATION ; ANIMAL SALVAJE ; ANIMAL SAUVAGE ; Animal, plant and microbial ecology ; APPROVISIONNEMENT ; Aquatic birds ; AQUATIC PLANTS ; AVES ACUATICAS ; AYTHYA ; Biological and medical sciences ; Birds ; BOURGEON ; BUDS ; CANARD ; COURS D'EAU ; CURSOS DE AGUA ; Demecology ; DUCKS ; Ecology ; ESTACIONES DEL ANO ; FAUNE ET FLORE SAUVAGES ; Flowers & plants ; Food ; FOOD SUPPLY ; FOODS ; Freshwater ; Freshwater fishes ; Fundamental and applied biological sciences. Psychology ; GESTION ; HELOBIAE ; Hoaxes ; HYDROCHARITACEAE ; Lakes ; Macrophytes ; MANAGEMENT ; MICHIGAN ; MIGRACION ANIMAL ; Migration ; MIGRATION ANIMALE ; NATURAL RESOURCES ; OISEAU AQUATIQUE ; PATO ; PLANT RESOURCES ; PLANTAS ACUATICAS ; PLANTAS SILVESTRES ; PLANTE AQUATIQUE ; PLANTE SAUVAGE ; Plants ; Plants and fungi ; PRODUIT ALIMENTAIRE ; RECURSOS NATURALES ; RECURSOS VEGETALES ; RESSOURCE NATURELLE ; RESSOURCE VEGETALE ; RIVERS ; SAISON ; SEASONS ; SUMINISTRO DE ALIMENTOS ; VALLISNERIA AMERICANA ; VIDA SILVESTRE ; Water pollution ; WATERFOWL ; WILD ANIMALS ; WILD FOODS ; WILD PLANTS ; WILDLIFE ; Winter ; YEMA (PLANTA)</subject><ispartof>The Journal of wildlife management, 1990-01, Vol.54 (1), p.72-76</ispartof><rights>Copyright 1990 The Wildlife Society</rights><rights>1991 INIST-CNRS</rights><rights>Copyright Wildlife Society Jan 1990</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c293t-479e2cc3a6bc481165d07c8731e6946fd750ce6dd0afc4891b8361ae9e2b78823</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/3808903$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/3808903$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,4009,27902,27903,27904,57995,58228</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=19748405$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Schloesser, D.W. (U.S. Fish and Wildlife Service, Ann Arbor, MI)</creatorcontrib><creatorcontrib>Manny, B.A</creatorcontrib><title>Decline of wildcelery buds in the lower Detroit River, 1950-85</title><title>The Journal of wildlife management</title><description>American wildcelery buds (Vallisneria americana), an abundant food eaten by diving ducks (Aythini) during migrations, decreased in the lower Detroit River of the Great Lakes from 1950 to 1985. Bud densities decreased at 2 (- 14 and - 18 buds/m2) of 5 locations and were similar at 3 (-2, +2, and +3 buds/m2) of 5 locations. Net change in all 5 areas combined, however, was a decrease of 36,720,000 buds, a 72% decline. Estimated potential losses of waterfowl feeding days caused by the decreased bud densities were 147,000 for canvasbacks (Aythya valisineria), 241,000 for redhead ducks (A. americana), or 664,000 for lesser scaup (A. affinis). Thus, the decline of wildcelery in the Detroit River may have contributed to decreased use of Michigan migration routes by some waterfowl species between 1950 and 1985.</description><subject>ALIMENTOS</subject><subject>Animal and plant ecology</subject><subject>ANIMAL MIGRATION</subject><subject>ANIMAL SALVAJE</subject><subject>ANIMAL SAUVAGE</subject><subject>Animal, plant and microbial ecology</subject><subject>APPROVISIONNEMENT</subject><subject>Aquatic birds</subject><subject>AQUATIC PLANTS</subject><subject>AVES ACUATICAS</subject><subject>AYTHYA</subject><subject>Biological and medical sciences</subject><subject>Birds</subject><subject>BOURGEON</subject><subject>BUDS</subject><subject>CANARD</subject><subject>COURS D'EAU</subject><subject>CURSOS DE AGUA</subject><subject>Demecology</subject><subject>DUCKS</subject><subject>Ecology</subject><subject>ESTACIONES DEL ANO</subject><subject>FAUNE ET FLORE SAUVAGES</subject><subject>Flowers & plants</subject><subject>Food</subject><subject>FOOD SUPPLY</subject><subject>FOODS</subject><subject>Freshwater</subject><subject>Freshwater fishes</subject><subject>Fundamental and applied biological sciences. 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(U.S. Fish and Wildlife Service, Ann Arbor, MI)</creator><creator>Manny, B.A</creator><general>The Wildlife Society</general><general>Wildlife Society</general><general>Blackwell Publishing Ltd</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QG</scope><scope>7QL</scope><scope>7SN</scope><scope>7ST</scope><scope>7T7</scope><scope>7U6</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>M7N</scope><scope>P64</scope><scope>F1W</scope><scope>H95</scope><scope>H97</scope><scope>L.G</scope></search><sort><creationdate>199001</creationdate><title>Decline of wildcelery buds in the lower Detroit River, 1950-85</title><author>Schloesser, D.W. 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(U.S. Fish and Wildlife Service, Ann Arbor, MI)</au><au>Manny, B.A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Decline of wildcelery buds in the lower Detroit River, 1950-85</atitle><jtitle>The Journal of wildlife management</jtitle><date>1990-01</date><risdate>1990</risdate><volume>54</volume><issue>1</issue><spage>72</spage><epage>76</epage><pages>72-76</pages><issn>0022-541X</issn><eissn>1937-2817</eissn><coden>JWMAA9</coden><abstract>American wildcelery buds (Vallisneria americana), an abundant food eaten by diving ducks (Aythini) during migrations, decreased in the lower Detroit River of the Great Lakes from 1950 to 1985. Bud densities decreased at 2 (- 14 and - 18 buds/m2) of 5 locations and were similar at 3 (-2, +2, and +3 buds/m2) of 5 locations. Net change in all 5 areas combined, however, was a decrease of 36,720,000 buds, a 72% decline. Estimated potential losses of waterfowl feeding days caused by the decreased bud densities were 147,000 for canvasbacks (Aythya valisineria), 241,000 for redhead ducks (A. americana), or 664,000 for lesser scaup (A. affinis). Thus, the decline of wildcelery in the Detroit River may have contributed to decreased use of Michigan migration routes by some waterfowl species between 1950 and 1985.</abstract><cop>Bethesda, MD</cop><pub>The Wildlife Society</pub><doi>10.2307/3808903</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0022-541X |
| ispartof | The Journal of wildlife management, 1990-01, Vol.54 (1), p.72-76 |
| issn | 0022-541X 1937-2817 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_15709231 |
| source | Jstor Complete Legacy |
| subjects | ALIMENTOS Animal and plant ecology ANIMAL MIGRATION ANIMAL SALVAJE ANIMAL SAUVAGE Animal, plant and microbial ecology APPROVISIONNEMENT Aquatic birds AQUATIC PLANTS AVES ACUATICAS AYTHYA Biological and medical sciences Birds BOURGEON BUDS CANARD COURS D'EAU CURSOS DE AGUA Demecology DUCKS Ecology ESTACIONES DEL ANO FAUNE ET FLORE SAUVAGES Flowers & plants Food FOOD SUPPLY FOODS Freshwater Freshwater fishes Fundamental and applied biological sciences. Psychology GESTION HELOBIAE Hoaxes HYDROCHARITACEAE Lakes Macrophytes MANAGEMENT MICHIGAN MIGRACION ANIMAL Migration MIGRATION ANIMALE NATURAL RESOURCES OISEAU AQUATIQUE PATO PLANT RESOURCES PLANTAS ACUATICAS PLANTAS SILVESTRES PLANTE AQUATIQUE PLANTE SAUVAGE Plants Plants and fungi PRODUIT ALIMENTAIRE RECURSOS NATURALES RECURSOS VEGETALES RESSOURCE NATURELLE RESSOURCE VEGETALE RIVERS SAISON SEASONS SUMINISTRO DE ALIMENTOS VALLISNERIA AMERICANA VIDA SILVESTRE Water pollution WATERFOWL WILD ANIMALS WILD FOODS WILD PLANTS WILDLIFE Winter YEMA (PLANTA) |
| title | Decline of wildcelery buds in the lower Detroit River, 1950-85 |
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