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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
25/09/2008 |
Data da última atualização: |
25/09/2008 |
Autoria: |
DECAENS, T.; ROUGERIE, R.; RICHARD, B.; JAMES, S.; HEBERT, P. |
Título: |
A taxonomic survey of Upper-Normandy earthorms with DNA barecodes. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM. |
Idioma: |
Inglês |
Conteúdo: |
Earthworms are represented in most terrestrial ecosystems, where they perform key ecological
functions. Their relatively large body-size facilitates their sampling and their study when compared
with smaller groups of the soil fauna. Despite these characteristics, taxonomic knowledge of
these organisms is still weak, even for the family Lumbricidae which is the exclusive representative
of the group in Western Europe. Identification difficulties are particularly dramatic for juveniles
for which the classical diagnostic characters (structure and position of the clitellum) are absent.
The main objective of this study was to survey the taxonomy of earthworm species in Upper
Normandy by building a database of DNA barcodes (partial sequences of the mitochondrial
gene COI). In April 2007 and 2008, we made an exhaustive collection of individuals (about 20
per species) of the species pool of the Upper Normandy region (ca. 20 species). Special attention
was paid to inclusion of intraspecific phenotypic variability, by sampling specimens varying in
size and coloration, two characters usually neglected in earthworm taxonomy though they have
been shown to be potential indicators of cryptic diversity. Small fragments of cutaneous tissues
were sampled from each specimen before its fixation in formaldehyde and storage in alcohol.
Sequencing of the COI gene was performed at the Canadian Centre for DNA Barcoding, and
results were analysed through the BOLD bioinformatics platform (Ratnasingham & Hebert 2007).
The results allow exploration of some more specific aspects of earthworm taxonomy, such as
the diversity of local species that are known as invasive in other regions; examining some
taxonomic problems raised by polymorphic species suspected to be complex of cryptic species;
verifying the status of potential cryptic species revealed by DNA barcoding. Preliminary results
indicate that three of the most common species in the target area (Lumbricus terrestris,
Allolobophora chlorotica and Aporrectodea caliginosa) all represent complexes of cryptic
species. MenosEarthworms are represented in most terrestrial ecosystems, where they perform key ecological
functions. Their relatively large body-size facilitates their sampling and their study when compared
with smaller groups of the soil fauna. Despite these characteristics, taxonomic knowledge of
these organisms is still weak, even for the family Lumbricidae which is the exclusive representative
of the group in Western Europe. Identification difficulties are particularly dramatic for juveniles
for which the classical diagnostic characters (structure and position of the clitellum) are absent.
The main objective of this study was to survey the taxonomy of earthworm species in Upper
Normandy by building a database of DNA barcodes (partial sequences of the mitochondrial
gene COI). In April 2007 and 2008, we made an exhaustive collection of individuals (about 20
per species) of the species pool of the Upper Normandy region (ca. 20 species). Special attention
was paid to inclusion of intraspecific phenotypic variability, by sampling specimens varying in
size and coloration, two characters usually neglected in earthworm taxonomy though they have
been shown to be potential indicators of cryptic diversity. Small fragments of cutaneous tissues
were sampled from each specimen before its fixation in formaldehyde and storage in alcohol.
Sequencing of the COI gene was performed at the Canadian Centre for DNA Barcoding, and
results were analysed through the BOLD bioinformatics platform (Ratnasingham ... Mostrar Tudo |
Categoria do assunto: |
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LEADER 02787naa a2200169 a 4500 001 1314944 005 2008-09-25 008 2008 bl uuuu u00u1 u #d 100 1 $aDECAENS, T. 245 $aA taxonomic survey of Upper-Normandy earthorms with DNA barecodes. 260 $c2008 520 $aEarthworms are represented in most terrestrial ecosystems, where they perform key ecological functions. Their relatively large body-size facilitates their sampling and their study when compared with smaller groups of the soil fauna. Despite these characteristics, taxonomic knowledge of these organisms is still weak, even for the family Lumbricidae which is the exclusive representative of the group in Western Europe. Identification difficulties are particularly dramatic for juveniles for which the classical diagnostic characters (structure and position of the clitellum) are absent. The main objective of this study was to survey the taxonomy of earthworm species in Upper Normandy by building a database of DNA barcodes (partial sequences of the mitochondrial gene COI). In April 2007 and 2008, we made an exhaustive collection of individuals (about 20 per species) of the species pool of the Upper Normandy region (ca. 20 species). Special attention was paid to inclusion of intraspecific phenotypic variability, by sampling specimens varying in size and coloration, two characters usually neglected in earthworm taxonomy though they have been shown to be potential indicators of cryptic diversity. Small fragments of cutaneous tissues were sampled from each specimen before its fixation in formaldehyde and storage in alcohol. Sequencing of the COI gene was performed at the Canadian Centre for DNA Barcoding, and results were analysed through the BOLD bioinformatics platform (Ratnasingham & Hebert 2007). The results allow exploration of some more specific aspects of earthworm taxonomy, such as the diversity of local species that are known as invasive in other regions; examining some taxonomic problems raised by polymorphic species suspected to be complex of cryptic species; verifying the status of potential cryptic species revealed by DNA barcoding. Preliminary results indicate that three of the most common species in the target area (Lumbricus terrestris, Allolobophora chlorotica and Aporrectodea caliginosa) all represent complexes of cryptic species. 700 1 $aROUGERIE, R. 700 1 $aRICHARD, B. 700 1 $aJAMES, S. 700 1 $aHEBERT, P. 773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. Editors: George Gardner Brown; Klaus Dieter Sautter; Renato Marques; Amarildo Pasini. 1 CD-ROM.
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Registro original: |
Embrapa Florestas (CNPF) |
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Registro Completo
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
20/02/2008 |
Data da última atualização: |
17/05/2019 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
PIRAUX, M.; TONNEAU, J. P.; CARON, P.; CHIA, E.; VALLARIE, P.; COUDELE, E.; SIDERSKY, P.; FAVRE, N.; BURTE, J.; CANIELLO, M.; ARAÚJO, A. E.; SILVEIRA, L.; BARROS, E. R.; SILVA, P. C. G. da; ARAÚJO, C. R. de; CEZIMBRA, C. M.; AZEVEDO, S. G. de; SOUZA, J. de; DUARTE, L.; OLIVEIRA, L. M. S. de; CUNHA, L. H.; MALUF, R. |
Afiliação: |
Marc Piraux, Consultor CIRAD/CPATSA; Jean-Philippe Tonneau, Consultor CIRAD/CPATSA; Patrick Caron, Consultor CIRAD/CPATSA; PEDRO CARLOS GAMA DA SILVA, CPATSA; SERGIO GUILHERME DE AZEVEDO, CPATSA. |
Título: |
Desenvolvimento territorial e fortalecimento da capacidade dos atores no Nordeste do Brasil. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: CIRAD. O Cirad no Brasil: relatório de atividades 2005-2007. Brasília, DF, 2007. |
Páginas: |
cap. 4, p. 76-78. |
Idioma: |
Português |
Conteúdo: |
Nos dias de hoje, por iniciativa de vários ministérios, o Brasil vivencia um importante crescimento das políticas de desenvolvimento territorial. Em particular, a Secretaria do Desenvolvimento Territorial do Ministério de Desenvolvimento Agrário (MOA/SOT) promove um modelo aberto à parceria junto à sociedade civil, tentando conciliar combate à pobreza, proteção ambiental e geração de emprego. Este modelo se insere em uma ótica de descentralização na qual o território se torna um novo espaço de construção de projeto e articulação de políticas públicas. Todavia, estas experiências se deparam com um certo número de problemas: desenvolvimento de políticas setoriais pouco integradas: iniciativas locais muito diversificadas que carecem de articulação entre si e com estas políticas ... O desenvolvimento territorial, buscando enfrentar estes desafios de articulação e operacionalidade, padece por falta de competências dos atuantes. Há uma verdadeira demanda por referências e formação por parte das instituições. |
Palavras-Chave: |
Desenvolvimento territorial; Formação. |
Thesagro: |
Desenvolvimento rural; Parceria. |
Thesaurus NAL: |
Rural development. |
Categoria do assunto: |
B Sociologia Rural |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/197428/1/Cirad-no-Brasil-pag-76-78.pdf
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Marc: |
LEADER 02279naa a2200445 a 4500 001 1147719 005 2019-05-17 008 2007 bl uuuu u00u1 u #d 100 1 $aPIRAUX, M. 245 $aDesenvolvimento territorial e fortalecimento da capacidade dos atores no Nordeste do Brasil. 260 $c2007 300 $acap. 4, p. 76-78. 520 $aNos dias de hoje, por iniciativa de vários ministérios, o Brasil vivencia um importante crescimento das políticas de desenvolvimento territorial. Em particular, a Secretaria do Desenvolvimento Territorial do Ministério de Desenvolvimento Agrário (MOA/SOT) promove um modelo aberto à parceria junto à sociedade civil, tentando conciliar combate à pobreza, proteção ambiental e geração de emprego. Este modelo se insere em uma ótica de descentralização na qual o território se torna um novo espaço de construção de projeto e articulação de políticas públicas. Todavia, estas experiências se deparam com um certo número de problemas: desenvolvimento de políticas setoriais pouco integradas: iniciativas locais muito diversificadas que carecem de articulação entre si e com estas políticas ... O desenvolvimento territorial, buscando enfrentar estes desafios de articulação e operacionalidade, padece por falta de competências dos atuantes. Há uma verdadeira demanda por referências e formação por parte das instituições. 650 $aRural development 650 $aDesenvolvimento rural 650 $aParceria 653 $aDesenvolvimento territorial 653 $aFormação 700 1 $aTONNEAU, J. P. 700 1 $aCARON, P. 700 1 $aCHIA, E. 700 1 $aVALLARIE, P. 700 1 $aCOUDELE, E. 700 1 $aSIDERSKY, P. 700 1 $aFAVRE, N. 700 1 $aBURTE, J. 700 1 $aCANIELLO, M. 700 1 $aARAÚJO, A. E. 700 1 $aSILVEIRA, L. 700 1 $aBARROS, E. R. 700 1 $aSILVA, P. C. G. da 700 1 $aARAÚJO, C. R. de 700 1 $aCEZIMBRA, C. M. 700 1 $aAZEVEDO, S. G. de 700 1 $aSOUZA, J. de 700 1 $aDUARTE, L. 700 1 $aOLIVEIRA, L. M. S. de 700 1 $aCUNHA, L. H. 700 1 $aMALUF, R. 773 $tIn: CIRAD. O Cirad no Brasil: relatório de atividades 2005-2007. Brasília, DF, 2007.
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