|
|
|
|
| |
|
|
| Frelat, Romain; Orio, Alessandro; Casini, Michele; Lehmann, Andreas; Merigot, Bastien; Otto, Saskia A.; Sguotti, Camilla; Moellmann, Christian. |
| Fisheries and marine ecosystem-based management requires a holistic understanding of the dynamics of fish communities and their responses to changes in environmental conditions. Environmental conditions can simultaneously shape the spatial distribution and the temporal dynamics of a population, which together can trigger changes in the functional structure of communities. Here, we developed a comprehensive framework based on complementary multivariate statistical methodologies to simultaneously investigate the effects of environmental conditions on the spatial, temporal and functional dynamics of species assemblages. The framework is tested using survey data collected during more than 4000 fisheries hauls over the Baltic Sea between 2001 and 2016. The... |
| Tipo: Text |
Palavras-chave: Baltic Sea; Demersal fish community; Functional traits; Multivariate analysis; Spatio-temporal dynamics; Species distribution. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00475/58659/62410.pdf |
| |
|
| |
|
|
| Merillet, Laurene. |
| Marine ecosystems face many pressures, the main ones being fishing and climate change. These pressures do not have the same consequences on the different facets of biodiversity, e.g. on taxa, traits and networks, and their study is necessary for the implementation of an ecosystem approach to fisheries. The Celtic Sea is a very important fishing area for European fisheries, with a specific richness greater than adjacent areas. Based on a time series from 2000 to 2016, I have studied the spatio-temporal dynamics of 101 species of the ecosystem. Over this period, taxonomic biodiversity was stable, and the importance of fishing as a structuring variable for communities decreased after 2009, and was lower than the environment (depth, chlorophyll a concentration... |
| Tipo: Text |
Palavras-chave: Approche écosystémique des pêches; Dynamiques spatio-temporelles; Traits d’histoire de vie; Réseaux trophiques; Gestion des ressources; Ecosystem approach to fisheries; Spatio-temporal dynamics; Community ecology; Life-history traits; Food webs; Resource management. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00666/77806/79980.pdf |
| |
|
|
| SILVA, A. P. S.; BERGIER, I.; ABREU, U. G. P. de; NOGUEIRA, E.; OLIVEIRA, L. O. F. de; URBANETZ, C.; SILVA, J. C. B.; SILVA JUNIOR, C.. |
| Este trabalho apresenta uma metodologia simples e bem conhecida de mapeamento espaço-temporal aplicada a paisagens de fazendas de produção de gado de corte no Pantanal. A área foco de estudo, a Fazenda São Bento, localizada na sub-região do Abobral, Estrada Parque, totaliza 9,2 mil hectares. Utilizou-se dados do satélite Landsat-5 de 1985 a 2011, entre junho e setembro, sendo selecionadas imagens livres de nuvens das bandas espectrais 3, 4 e 5 para o processamento digital e a classificação das paisagens da fazenda. As imagens foram inicialmente retificadas geométrica e radiometricamente, e a posteriori foi feita uma análise estatística por componentes principais. A identificação e a quantificação em área das paisagens da fazenda foram obtidas por... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Dinâmica espaço temporal; Gestão de paisagens; Cadastro ambiental rural; Área de uso restrito ou compartilhado; Spatio-temporal dynamics; Rural environmental register; Land sparing or sharing.; Landscape management.. |
| Ano: 2016 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1049770 |
| |
|
| |
|
|
|
