| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pantanal. |
|
Data corrente: |
03/08/1998 |
|
Data da última atualização: |
28/03/2017 |
|
Autoria: |
BURGER, J.; GOCHFELD, M. |
|
Título: |
Heavy metal and selenium levels in birds at Agassiz National Wildlife Refuge, Minnesota: food chain differences. |
|
Ano de publicação: |
1996 |
|
Fonte/Imprenta: |
Environmental Monitoring Assessment, v.43, n.3, p.267-282, 1996. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The levels of heavy metal and selenium in the eggs and in breast feathers of adult double-crested cormorant (Phalacrocorax auritus), black-crowned night heron (Nycticorax nycticorax) and franklin's gull (Larus pipixcan) nesting at Agassiz National Wildlife Refuge in Marshall County, northwestern Minnesota were examined. Also examined were metal levels in the feathers of fledgling night herons and gulls in the feathers of adult and fledgling American bittern (Botaurus lentiginosus), in eggs of America coot (Fulica americana) and eared grebe (Podiceps caspicus) and in feathers of adult Canada geese (Branta canadensis). These species represent different levels on the food chain from primarily vegetation-eating species (geese, coot) to species that eat primarily fish (cormorant). A clear, positive relationships between level on the food chain and levels of heavy metals occured only for mercury in feathers and eggs. Otherwise, eared grebes had the highest levels of all other metals in their eggs compared to the other species. No clear food chain pattern existed for feathers for the other metals. For eggs at Agassiz: 1) lead, selenium and manganese levels were similar to those reported in the literature, 2) mercury levels were slightly for cormorants and night herons, 3) all species had higher chromium and cadmium levels than generally reported and 4) eared grebes had significantly higher levels of cadmium than reported for any species from elsewhere. For adult feathers: 1) gulls had higher levels of lead than the other species, 2) cadmium levels were elevated in gulls and adult herons and cormorants, 3) mercury levels showed an increase with position on the food chain, 4) selenium and chromium levels of all birds ata Agassiz were generally low and 5) manganese levels in adults were generally higher than in the literature for other species. Adults had significantly higher mercury levels than flegling gulls, night herons and bitterns. MenosThe levels of heavy metal and selenium in the eggs and in breast feathers of adult double-crested cormorant (Phalacrocorax auritus), black-crowned night heron (Nycticorax nycticorax) and franklin's gull (Larus pipixcan) nesting at Agassiz National Wildlife Refuge in Marshall County, northwestern Minnesota were examined. Also examined were metal levels in the feathers of fledgling night herons and gulls in the feathers of adult and fledgling American bittern (Botaurus lentiginosus), in eggs of America coot (Fulica americana) and eared grebe (Podiceps caspicus) and in feathers of adult Canada geese (Branta canadensis). These species represent different levels on the food chain from primarily vegetation-eating species (geese, coot) to species that eat primarily fish (cormorant). A clear, positive relationships between level on the food chain and levels of heavy metals occured only for mercury in feathers and eggs. Otherwise, eared grebes had the highest levels of all other metals in their eggs compared to the other species. No clear food chain pattern existed for feathers for the other metals. For eggs at Agassiz: 1) lead, selenium and manganese levels were similar to those reported in the literature, 2) mercury levels were slightly for cormorants and night herons, 3) all species had higher chromium and cadmium levels than generally reported and 4) eared grebes had significantly higher levels of cadmium than reported for any species from elsewhere. For adult feathers: 1) gulls ... Mostrar Tudo |
|
Palavras-Chave: |
Ave; Bird; Heavy metal; Refuge; Refugio; Vida selvagem. |
|
Thesagro: |
Cadeia Alimentar; Metal Pesado; Selênio. |
|
Thesaurus Nal: |
food chain; Minnesota; selenium; wildlife. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02723naa a2200289 a 4500
001 1792765
005 2017-03-28
008 1996 bl --- 0-- u #d
100 1 $aBURGER, J.
245 $aHeavy metal and selenium levels in birds at Agassiz National Wildlife Refuge, Minnesota$bfood chain differences.
260 $c1996
520 $aThe levels of heavy metal and selenium in the eggs and in breast feathers of adult double-crested cormorant (Phalacrocorax auritus), black-crowned night heron (Nycticorax nycticorax) and franklin's gull (Larus pipixcan) nesting at Agassiz National Wildlife Refuge in Marshall County, northwestern Minnesota were examined. Also examined were metal levels in the feathers of fledgling night herons and gulls in the feathers of adult and fledgling American bittern (Botaurus lentiginosus), in eggs of America coot (Fulica americana) and eared grebe (Podiceps caspicus) and in feathers of adult Canada geese (Branta canadensis). These species represent different levels on the food chain from primarily vegetation-eating species (geese, coot) to species that eat primarily fish (cormorant). A clear, positive relationships between level on the food chain and levels of heavy metals occured only for mercury in feathers and eggs. Otherwise, eared grebes had the highest levels of all other metals in their eggs compared to the other species. No clear food chain pattern existed for feathers for the other metals. For eggs at Agassiz: 1) lead, selenium and manganese levels were similar to those reported in the literature, 2) mercury levels were slightly for cormorants and night herons, 3) all species had higher chromium and cadmium levels than generally reported and 4) eared grebes had significantly higher levels of cadmium than reported for any species from elsewhere. For adult feathers: 1) gulls had higher levels of lead than the other species, 2) cadmium levels were elevated in gulls and adult herons and cormorants, 3) mercury levels showed an increase with position on the food chain, 4) selenium and chromium levels of all birds ata Agassiz were generally low and 5) manganese levels in adults were generally higher than in the literature for other species. Adults had significantly higher mercury levels than flegling gulls, night herons and bitterns.
650 $afood chain
650 $aMinnesota
650 $aselenium
650 $awildlife
650 $aCadeia Alimentar
650 $aMetal Pesado
650 $aSelênio
653 $aAve
653 $aBird
653 $aHeavy metal
653 $aRefuge
653 $aRefugio
653 $aVida selvagem
700 1 $aGOCHFELD, M.
773 $tEnvironmental Monitoring Assessment$gv.43, n.3, p.267-282, 1996.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pantanal (CPAP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Pantanal. |
|
Data corrente: |
20/02/2002 |
|
Data da última atualização: |
20/02/2002 |
|
Autoria: |
MORENO, T. E.; SERENO, J. R. B.; CABELLO, A.; SERENO, F. T. P. S.; CHALITA, L. V. A. S.; DELGADO, J. V. |
|
Afiliação: |
Universidad de Cordoba (Cordoba, Espanha); Embrapa Pantanal (Corumba, MS); Diputacion de Cordoba (Cordoba, Espanha); UNESP. Departamento de Bioestatistica (Botucatu, SP). |
|
Título: |
Desarrollo corporal en cerdas ibericas de la variedad torbiscal comparadas con hembras duroc jersey. |
|
Ano de publicação: |
2001 |
|
Fonte/Imprenta: |
In: SIMPOSIO IBEROAMERICANO SOBRE CONSERVACION DE LOS RECURSOS GENETICOS LOCALES Y EL DESARROLLO RURAL SUSTENTABLE, 2., 2001, Coro. Programa y resumenes. Coro, Falcon: Fundacite Falcon, 2001. |
|
Páginas: |
p.43. |
|
Idioma: |
Espanhol |
|
Conteúdo: |
Este trabajo tuvo como objetivo estudiar el desarrollo corporal de cerdas Ibericas, variedad Torbiscal y comparalas con cerdas Duroc, desde el nacimiento hasta el destete, edad en que estas hembras son vendidas para reposicion de los planteles en la Provincia de Cordoba, Espana. Se utilizo dos lotes de 23 hembras cada, de las razas Duroc Jersey y Torbiscal, respectivamente. Estas cerdas estuvieron estabuladas y alimentadas con leche materno y pienso hasta la edad de 30 dias (destete). En este tiempo, se tomaron tres pesadas: Peso 1 (al nacimiento), Peso 2 (corregido a los 18 dias) y Peso 3 (corregido a los 30 dias), asi como las medidas morfometricas: LC (longitud corporal) y PT (Perimetro Toracico) en las mismas tomas de datos con la finalidad de evaluar el desarrollo corporal de estas dos razas de cerdas, ya que ambas son largamente utilizadas en las dehesas para la explotacion del cerdo Iberico, tipo pata negra, denominacion de origen. |
|
Palavras-Chave: |
Desenvolvimento corporal; Development; Pig. |
|
Thesagro: |
Porco. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01765naa a2200241 a 4500
001 1809800
005 2002-02-20
008 2001 bl uuuu u00u1 u #d
100 1 $aMORENO, T. E.
245 $aDesarrollo corporal en cerdas ibericas de la variedad torbiscal comparadas con hembras duroc jersey.
260 $c2001
300 $ap.43.
520 $aEste trabajo tuvo como objetivo estudiar el desarrollo corporal de cerdas Ibericas, variedad Torbiscal y comparalas con cerdas Duroc, desde el nacimiento hasta el destete, edad en que estas hembras son vendidas para reposicion de los planteles en la Provincia de Cordoba, Espana. Se utilizo dos lotes de 23 hembras cada, de las razas Duroc Jersey y Torbiscal, respectivamente. Estas cerdas estuvieron estabuladas y alimentadas con leche materno y pienso hasta la edad de 30 dias (destete). En este tiempo, se tomaron tres pesadas: Peso 1 (al nacimiento), Peso 2 (corregido a los 18 dias) y Peso 3 (corregido a los 30 dias), asi como las medidas morfometricas: LC (longitud corporal) y PT (Perimetro Toracico) en las mismas tomas de datos con la finalidad de evaluar el desarrollo corporal de estas dos razas de cerdas, ya que ambas son largamente utilizadas en las dehesas para la explotacion del cerdo Iberico, tipo pata negra, denominacion de origen.
650 $aPorco
653 $aDesenvolvimento corporal
653 $aDevelopment
653 $aPig
700 1 $aSERENO, J. R. B.
700 1 $aCABELLO, A.
700 1 $aSERENO, F. T. P. S.
700 1 $aCHALITA, L. V. A. S.
700 1 $aDELGADO, J. V.
773 $tIn: SIMPOSIO IBEROAMERICANO SOBRE CONSERVACION DE LOS RECURSOS GENETICOS LOCALES Y EL DESARROLLO RURAL SUSTENTABLE, 2., 2001, Coro. Programa y resumenes. Coro, Falcon: Fundacite Falcon, 2001.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pantanal (CPAP) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
