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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/04/2008 |
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Data da última atualização: |
25/02/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BROWN, G. G.; JAMES, S. W.; PASINI, A.; NUNES, D. H.; BENITO, N. P.; MARTINS, P. T.; SAUTTER, K. D. |
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Afiliação: |
GEORGE GARDNER BROWN, CNPF; SAMUEL WOOSTER JAMES, University of Kansas; AMARILDO PASINI, UEL; DAIANE H. NUNES, UEL; NORTON POLO BENITO, UEL; PRISCILA TRIGO MARTINS, UEL; KLAUS DIETER SAUTTER, Centro Universitário Positivo. |
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Título: |
Exotic, peregrine, and invasive earthworms in Brazil: diversity, distribution, and effects on soils and plants. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Caribbean Journal of Science, v. 42, n. 3, p. 339-358, 2006. |
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Idioma: |
Inglês |
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Conteúdo: |
Humans have transported exotic earthworms throughout the world, and in some situations these may become invasive, modifying soil properties and processes, and plant growth significantly; either positively or negatively. Fifty-one exotic and up to seven peregine native earthworm species are known from Brazil, generally from agroecosystems or other disturbed sites close to human habitations. Eight species are considered invasive, and another sixteen are potentially invasive; however, little is known of the effects of most of these species on plants, soil properties, processes, and native species. Lumbricids and some acanthodrilid species are found primarily in the south and southeast of Brazil, where the cooler subtropical climate is more suitable to their activities. Other acanthodrilids (primarily Dichogaster spp.), the megascolecid Amynthas spp. and Pontoscolex corethrurus are widespread throughout Brazil, and sometimes invade native ecosystems, thus serving as disturbance indicators. However, only a few earthworm species have been studied in more detail, mainly the Amynthas spp. and P. corethrurus. Available results seem to indicate that the activities of these earthworm species can lead to both positive and negative effects on soils, plants and the native biota, and that this may depend on the site’s characteristics (soil, climate and vegetation types). Nevertheless, considering the large diversity of earthworms in Brazil, and the little available information, much more work is warranted (and urgently necessary) to adequately assess and predict the diversity, distribution and potential environmental impacts, positive or negative, of invasive earthworms in Brazil. MenosHumans have transported exotic earthworms throughout the world, and in some situations these may become invasive, modifying soil properties and processes, and plant growth significantly; either positively or negatively. Fifty-one exotic and up to seven peregine native earthworm species are known from Brazil, generally from agroecosystems or other disturbed sites close to human habitations. Eight species are considered invasive, and another sixteen are potentially invasive; however, little is known of the effects of most of these species on plants, soil properties, processes, and native species. Lumbricids and some acanthodrilid species are found primarily in the south and southeast of Brazil, where the cooler subtropical climate is more suitable to their activities. Other acanthodrilids (primarily Dichogaster spp.), the megascolecid Amynthas spp. and Pontoscolex corethrurus are widespread throughout Brazil, and sometimes invade native ecosystems, thus serving as disturbance indicators. However, only a few earthworm species have been studied in more detail, mainly the Amynthas spp. and P. corethrurus. Available results seem to indicate that the activities of these earthworm species can lead to both positive and negative effects on soils, plants and the native biota, and that this may depend on the site’s characteristics (soil, climate and vegetation types). Nevertheless, considering the large diversity of earthworms in Brazil, and the little available information, much more w... Mostrar Tudo |
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Palavras-Chave: |
Brasil. |
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Thesagro: |
Biodiversidade; Biogeografia; Minhoca. |
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Thesaurus Nal: |
Oligochaeta. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02425naa a2200253 a 4500
001 1304743
005 2015-02-25
008 2006 bl uuuu u00u1 u #d
100 1 $aBROWN, G. G.
245 $aExotic, peregrine, and invasive earthworms in Brazil$bdiversity, distribution, and effects on soils and plants.$h[electronic resource]
260 $c2006
520 $aHumans have transported exotic earthworms throughout the world, and in some situations these may become invasive, modifying soil properties and processes, and plant growth significantly; either positively or negatively. Fifty-one exotic and up to seven peregine native earthworm species are known from Brazil, generally from agroecosystems or other disturbed sites close to human habitations. Eight species are considered invasive, and another sixteen are potentially invasive; however, little is known of the effects of most of these species on plants, soil properties, processes, and native species. Lumbricids and some acanthodrilid species are found primarily in the south and southeast of Brazil, where the cooler subtropical climate is more suitable to their activities. Other acanthodrilids (primarily Dichogaster spp.), the megascolecid Amynthas spp. and Pontoscolex corethrurus are widespread throughout Brazil, and sometimes invade native ecosystems, thus serving as disturbance indicators. However, only a few earthworm species have been studied in more detail, mainly the Amynthas spp. and P. corethrurus. Available results seem to indicate that the activities of these earthworm species can lead to both positive and negative effects on soils, plants and the native biota, and that this may depend on the site’s characteristics (soil, climate and vegetation types). Nevertheless, considering the large diversity of earthworms in Brazil, and the little available information, much more work is warranted (and urgently necessary) to adequately assess and predict the diversity, distribution and potential environmental impacts, positive or negative, of invasive earthworms in Brazil.
650 $aOligochaeta
650 $aBiodiversidade
650 $aBiogeografia
650 $aMinhoca
653 $aBrasil
700 1 $aJAMES, S. W.
700 1 $aPASINI, A.
700 1 $aNUNES, D. H.
700 1 $aBENITO, N. P.
700 1 $aMARTINS, P. T.
700 1 $aSAUTTER, K. D.
773 $tCaribbean Journal of Science$gv. 42, n. 3, p. 339-358, 2006.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
26/03/1996 |
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Data da última atualização: |
06/04/2017 |
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Autoria: |
PINHEIRO, M. S.; SANTOS, S. A. |
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Afiliação: |
EMBRAPA. Centro de Pesquisa Agropecuaria de Terras Baixas (Pelotas, RS); EMBRAPA. Centro de Pesquisa Agropecuaria do Pantanal (Corumba, MS). |
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Título: |
Crescimento inicial de diferentes ninhadas de jacare (Caiman crocodilus yacare), submetidas a tres taxas de lotacao. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 30., 1993. Rio de Janeiro. Anais... Niteroi: Sociedade Brasileira de Zootecnia, 1993. p.175. |
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Idioma: |
Português |
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Conteúdo: |
Este estudo teve como objetivo avaliar o efeito da taxa de lotacao sobre o crescimento de especimes de C. c. yacare oriundos de diferentes ninhadas. No laboratorio do Centro de Pesquisa Agropecuaria do Pantanal (CPAP), 54 filhotes foram submetidos a tres tratamentos de densidade (T1 = 10 animais/m2; T2 = 5 animais/m2 e T3 = 3 animais/m2) com tres repeticoes, sob condicoes semi-intensivas de criacao no periodo de seis meses. Nove boxes com 1 m2 constituiram as unidades experimentais. As temperaturas medias do ar e da agua ficaram em torno dos 27oC. A alimentacao constituiu-se de pequenos peixes que foram fornecidos de dois em dois dias, a vontade. As variaveis observadas foram peso, ganho em peso, comprimento focinho-cloaca (que corresponde a metade do comprimento total) e ganho em comprimento focinho-cloaca medidos mensalmente nao apresentaram diferencas significativas (P>5%) para os tratamentos. Peso: F* = 1,69 T1 = 121,19g; T2 = 160,48g; T3 = 136,08g; Ganho de peso; F* = 1,58 T1 = 75,25g; T2 = 112,46g; T3 = 87,53g; Comprimento Focinho-cloaca: F* = 1,33 T1 = 17,56cm; T2 = 18,90cm; T3 = 17,87cm; Ganho de comprimento Focinho-Cloaca: F* = 36,2 T1 = 5,22cm; T2 = 6,43cm; T3 = 5,4cm. Concluiu-se que em condicoes semi-intensivas pode-se confinar 10 jacares/m2 ate os seis meses de idade, sem que o seu crescimento seja significativamente afetado. F* = Fator de correcao. |
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Palavras-Chave: |
Growth. |
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Thesagro: |
Crescimento; Jacaré. |
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Thesaurus NAL: |
Caiman; Pantanal. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02031naa a2200193 a 4500
001 1787983
005 2017-04-06
008 1993 bl --- 0-- u #d
100 1 $aPINHEIRO, M. S.
245 $aCrescimento inicial de diferentes ninhadas de jacare (Caiman crocodilus yacare), submetidas a tres taxas de lotacao.
260 $c1993
520 $aEste estudo teve como objetivo avaliar o efeito da taxa de lotacao sobre o crescimento de especimes de C. c. yacare oriundos de diferentes ninhadas. No laboratorio do Centro de Pesquisa Agropecuaria do Pantanal (CPAP), 54 filhotes foram submetidos a tres tratamentos de densidade (T1 = 10 animais/m2; T2 = 5 animais/m2 e T3 = 3 animais/m2) com tres repeticoes, sob condicoes semi-intensivas de criacao no periodo de seis meses. Nove boxes com 1 m2 constituiram as unidades experimentais. As temperaturas medias do ar e da agua ficaram em torno dos 27oC. A alimentacao constituiu-se de pequenos peixes que foram fornecidos de dois em dois dias, a vontade. As variaveis observadas foram peso, ganho em peso, comprimento focinho-cloaca (que corresponde a metade do comprimento total) e ganho em comprimento focinho-cloaca medidos mensalmente nao apresentaram diferencas significativas (P>5%) para os tratamentos. Peso: F* = 1,69 T1 = 121,19g; T2 = 160,48g; T3 = 136,08g; Ganho de peso; F* = 1,58 T1 = 75,25g; T2 = 112,46g; T3 = 87,53g; Comprimento Focinho-cloaca: F* = 1,33 T1 = 17,56cm; T2 = 18,90cm; T3 = 17,87cm; Ganho de comprimento Focinho-Cloaca: F* = 36,2 T1 = 5,22cm; T2 = 6,43cm; T3 = 5,4cm. Concluiu-se que em condicoes semi-intensivas pode-se confinar 10 jacares/m2 ate os seis meses de idade, sem que o seu crescimento seja significativamente afetado. F* = Fator de correcao.
650 $aCaiman
650 $aPantanal
650 $aCrescimento
650 $aJacaré
653 $aGrowth
700 1 $aSANTOS, S. A.
773 $tIn: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 30., 1993. Rio de Janeiro. Anais... Niteroi: Sociedade Brasileira de Zootecnia, 1993. p.175.
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