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Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
11/07/2016 |
Data da última atualização: |
10/07/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LAVELLE, P.; SPAIN, A.; BLOUIN, M.; BROWN, G. G.; DECAENS, T.; GRIMALDO, M.; JIMÉNEZ, J. J.; McKEY, D.; MATHIEU, J.; VELASQUEZ, E.; ZANGERLÉ, A. |
Afiliação: |
Patrick Lavelle, IEES, Université; Alister Spain, The University of Western Australia; Manuel Blouin, Université Paris Est Créteil; GEORGE GARDNER BROWN, CNPF; Thibaud Decaëns, CEFE-CNRS; Michel Grimaldi, Institut de Recherche pour le Développement; Juan José Jiménez, Instituto Pirenaico de Ecologia; Doyle McKey, Universidad Nacional de Colombia; Jérôme Mathieu, IEES, Université; Elena Velasquez, Universidad Nacional de Colombia; Anne Zangerlé, Technische Universität Braunschweig. |
Título: |
Ecosystem engineers in a self-organized soil: a review of concepts and future research questions. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Soil Science, v. 181, n. 3/4, p. 91-109, Mar./Apr. 2016. |
DOI: |
10.1097/SS.0000000000000155 |
Idioma: |
Inglês |
Conteúdo: |
Soils are self-organized ecological systems within which organisms interact within a nested suite of discrete scales. Microorganisms form communities and physical structures at the smallest scale (microns), followed by the community of their predators organized in microfoodwebs (tens of microns), the functional domains built by ecosystem engineers (centimeters to meters), ecosystems, and landscapes. Ecosystemengineers, principally plant roots, earthworms, termites, and ants, play key roles in creating habitats for other organisms and controlling their activities through physical and biochemical processes. The biogenic, organic, and organomineral structures that they produce accumulate in the soil space to form threedimensional mosaics of functional domains, inhabited by specific communities of smaller organisms (microfauna and mesofauna, microorganisms) that drive soil processes through specific pathways. Ecosystem engineers also produce signaling and energy-rich molecules that act as ecological mediators of biological engineering processes. Energy-rich ecological mediators may selectively activate microbial populations and trigger priming effects, resulting in the degradation, synthesis, and sequestration of specific organic substrates. Signalingmolecules informsoil organisms of their producers? respective presences and change physiologies by modifying gene expression and through eliciting hormonal responses. Protection of plants against pests and diseases is largely achieved via these processes. At the highest scales, the delivery of ecosystem services emerges through the functioning of self-organized systems nested within each other. The integrity of the different subsystems at each scale and the quality of their interconnections are a precondition for an optimum and sustainable delivery of ecosystem services. Lastly, we present seven general research questions whose resolution will provide a firmer base for the proposed conceptual framework while offering new insights for sustainable use of the soil resource. MenosSoils are self-organized ecological systems within which organisms interact within a nested suite of discrete scales. Microorganisms form communities and physical structures at the smallest scale (microns), followed by the community of their predators organized in microfoodwebs (tens of microns), the functional domains built by ecosystem engineers (centimeters to meters), ecosystems, and landscapes. Ecosystemengineers, principally plant roots, earthworms, termites, and ants, play key roles in creating habitats for other organisms and controlling their activities through physical and biochemical processes. The biogenic, organic, and organomineral structures that they produce accumulate in the soil space to form threedimensional mosaics of functional domains, inhabited by specific communities of smaller organisms (microfauna and mesofauna, microorganisms) that drive soil processes through specific pathways. Ecosystem engineers also produce signaling and energy-rich molecules that act as ecological mediators of biological engineering processes. Energy-rich ecological mediators may selectively activate microbial populations and trigger priming effects, resulting in the degradation, synthesis, and sequestration of specific organic substrates. Signalingmolecules informsoil organisms of their producers? respective presences and change physiologies by modifying gene expression and through eliciting hormonal responses. Protection of plants against pests and diseases is largely achiev... Mostrar Tudo |
Palavras-Chave: |
Ecological mediators; Funcionamento do solo; Mediadores biológicos; Moléculas de sinalização; Papéis da biota do solo; Roles of the soil biota; Self-organized systems; Signaling molecules; Sistemas auto-organizados; Soil functioning. |
Thesagro: |
Ecossistema; Estrutura do solo. |
Thesaurus Nal: |
Ecosystem engineering; Soil structure. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
Marc: |
LEADER 03300naa a2200421 a 4500 001 2048556 005 2017-07-10 008 2016 bl uuuu u00u1 u #d 024 7 $a10.1097/SS.0000000000000155$2DOI 100 1 $aLAVELLE, P. 245 $aEcosystem engineers in a self-organized soil$ba review of concepts and future research questions.$h[electronic resource] 260 $c2016 520 $aSoils are self-organized ecological systems within which organisms interact within a nested suite of discrete scales. Microorganisms form communities and physical structures at the smallest scale (microns), followed by the community of their predators organized in microfoodwebs (tens of microns), the functional domains built by ecosystem engineers (centimeters to meters), ecosystems, and landscapes. Ecosystemengineers, principally plant roots, earthworms, termites, and ants, play key roles in creating habitats for other organisms and controlling their activities through physical and biochemical processes. The biogenic, organic, and organomineral structures that they produce accumulate in the soil space to form threedimensional mosaics of functional domains, inhabited by specific communities of smaller organisms (microfauna and mesofauna, microorganisms) that drive soil processes through specific pathways. Ecosystem engineers also produce signaling and energy-rich molecules that act as ecological mediators of biological engineering processes. Energy-rich ecological mediators may selectively activate microbial populations and trigger priming effects, resulting in the degradation, synthesis, and sequestration of specific organic substrates. Signalingmolecules informsoil organisms of their producers? respective presences and change physiologies by modifying gene expression and through eliciting hormonal responses. Protection of plants against pests and diseases is largely achieved via these processes. At the highest scales, the delivery of ecosystem services emerges through the functioning of self-organized systems nested within each other. The integrity of the different subsystems at each scale and the quality of their interconnections are a precondition for an optimum and sustainable delivery of ecosystem services. Lastly, we present seven general research questions whose resolution will provide a firmer base for the proposed conceptual framework while offering new insights for sustainable use of the soil resource. 650 $aEcosystem engineering 650 $aSoil structure 650 $aEcossistema 650 $aEstrutura do solo 653 $aEcological mediators 653 $aFuncionamento do solo 653 $aMediadores biológicos 653 $aMoléculas de sinalização 653 $aPapéis da biota do solo 653 $aRoles of the soil biota 653 $aSelf-organized systems 653 $aSignaling molecules 653 $aSistemas auto-organizados 653 $aSoil functioning 700 1 $aSPAIN, A. 700 1 $aBLOUIN, M. 700 1 $aBROWN, G. G. 700 1 $aDECAENS, T. 700 1 $aGRIMALDO, M. 700 1 $aJIMÉNEZ, J. J. 700 1 $aMcKEY, D. 700 1 $aMATHIEU, J. 700 1 $aVELASQUEZ, E. 700 1 $aZANGERLÉ, A. 773 $tSoil Science$gv. 181, n. 3/4, p. 91-109, Mar./Apr. 2016.
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Embrapa Florestas (CNPF) |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
Data corrente: |
20/11/2000 |
Data da última atualização: |
17/06/2015 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
HOFER, H.; BECK, L.; FORSTER, B.; GARCIA, M.; HANAGARTH, W.; LUIZAO, F.; LUIZAO, R.; MARTIUS, C.; MORAIS, J. W.; ROMBKE, J. |
Afiliação: |
Staatlisches Museum fur Naturkunde Karlsruhe; ECT Oekotoxikologie GmbH; Embrapa Amazonia Ocidental; INPA; Center for Development and Research-ZEF. |
Título: |
The function of the soil macrofauna in decomposition processes in central Amazonian polyculture systems and forests. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Program and abstracts... Hamburg: University, 2000. |
Páginas: |
p. 26. |
Idioma: |
Inglês |
Conteúdo: |
A study of macrofauna and decompositon in three central Amazonian ecosystems (a primary and a secondary forest and tow polyculture tree plantations) has shown the high importance of the macrofauna for the litter decompostion. Macrofauna biomass was highest in the primary forest and lowest in the secondary forest. It differed strongly between the two polyculture areas, probably due to different microclimatic conditions near the ground as influenced principally by density of secondary vegetation (cover) and shading by the neighboring forest. Litter decompositon in the central Amazon polycultures follows the same principles than in primary forest, e.g. the macrofauna regulates the decompostion rates. However the structure of the decomposer community differs clearly and lower decomposition rates and higher C/N-ratios show that the fauna in anthropogenic systems does not reach the same efficiency in decomposition and nutrient transfer. |
Palavras-Chave: |
Amazonas; Brasil; Manaus; Reclamation. |
Thesagro: |
Biomassa; Deterioração do Solo; Fauna Edáfica; Floresta Tropical Úmida; Recuperação do Solo; Serapilheira. |
Thesaurus NAL: |
biomass; environmental degradation; forest litter; soil fauna; tropical rain forests. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/125501/1/p.-26.pdf
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Marc: |
LEADER 02116nam a2200409 a 4500 001 1669961 005 2015-06-17 008 2000 bl uuuu u00u1 u #d 100 1 $aHOFER, H. 245 $aThe function of the soil macrofauna in decomposition processes in central Amazonian polyculture systems and forests. 260 $aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS, 2000, Hamburg. Program and abstracts... Hamburg: University$c2000 300 $ap. 26. 520 $aA study of macrofauna and decompositon in three central Amazonian ecosystems (a primary and a secondary forest and tow polyculture tree plantations) has shown the high importance of the macrofauna for the litter decompostion. Macrofauna biomass was highest in the primary forest and lowest in the secondary forest. It differed strongly between the two polyculture areas, probably due to different microclimatic conditions near the ground as influenced principally by density of secondary vegetation (cover) and shading by the neighboring forest. Litter decompositon in the central Amazon polycultures follows the same principles than in primary forest, e.g. the macrofauna regulates the decompostion rates. However the structure of the decomposer community differs clearly and lower decomposition rates and higher C/N-ratios show that the fauna in anthropogenic systems does not reach the same efficiency in decomposition and nutrient transfer. 650 $abiomass 650 $aenvironmental degradation 650 $aforest litter 650 $asoil fauna 650 $atropical rain forests 650 $aBiomassa 650 $aDeterioração do Solo 650 $aFauna Edáfica 650 $aFloresta Tropical Úmida 650 $aRecuperação do Solo 650 $aSerapilheira 653 $aAmazonas 653 $aBrasil 653 $aManaus 653 $aReclamation 700 1 $aBECK, L. 700 1 $aFORSTER, B. 700 1 $aGARCIA, M. 700 1 $aHANAGARTH, W. 700 1 $aLUIZAO, F. 700 1 $aLUIZAO, R. 700 1 $aMARTIUS, C. 700 1 $aMORAIS, J. W. 700 1 $aROMBKE, J.
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