Detritus Food Webs
Mostrando 1-5 de 5 artigos, teses e dissertações.
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1. RelaÃÃes ecolÃgicas entre Melampus coffeus (Gastropoda: Pulmonata) e a serapilheira no mÃdio estuÃrio do rio Pacoti, Cearà / Ecological relations between Melampus coffeus (Gastropoda: Pulmonata) and the leaflitter in the middle estuary of Pacoti river, CearÃ
The litter is essential for the nutrients and organic matter cycles in forests ecosystems. These vegetal detritus are a food source to many groups of animals that act directly on the litter decomposition. Litter also seems to provide microhabitats and works as a shelter for many individuals of the mangrove fauna. The gastropod Melampus coffeus (Linnaeus, 175
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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2. Species assembly rules and the biodiversity-ecosystem functioning relationship / Regras entre assemblÃias de espÃcies: relaÃÃo entre biodiversidade e funcionamento do ecossistema
The biological diversity of ecosystems has important implications for their functioning. However, in order for reliable predictions to be made on the effects of species extinctions and/or additions on particular ecosystem functions, accurate knowledge is required on the ways in which species interact. These interactions in turn are important drivers of commu
Publicado em: 2007
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3. INFLUÊNCIA DO PULSO DE INUNDAÇÃO NA COMPOSIÇÃO ISOTÓPICA (d13C E d15N) DAS FONTES PRIMÁRIAS DE ENERGIA NA PLANÍCIE DE INUNDAÇÃO DO RIO PARAGUAI (PANTANAL MS) / SEASONAL PATTERN DETERMINING PRIMARY ENERGY SOURCES d13C AND d15N IN THE PARAGUAY RIVER FLOODPLAIN TROPHIC WEB, PANTANAL WETLAND - BRAZIL
The food web of the Pantanal wetland in Brazil was investigated during a complete hydrologic cycle (1998-99) using a multiple stable isotope approach (d13C and d15N) with the goal of identifying the primary carbon sources, which drive the system energy flux. The sampling was done in a representative marginal lake (Baía do Castelo) of Paraguay River floodpla
Publicado em: 2003
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4. Biomagnification of Aroclor 1242 in Decomposing Spartina Litter †
The accumulation of a polychlorinated biphenyl (PCB) mixture (Aroclor 1242) in the process of detritus formation by a shredded marshgrass (Spartina alterniflora) under aerobic conditions was monitored in percolators for 4 months at 20°C. Dissolved PCB in the influent solution was 14 to 16 μg/liter. Parameters monitored in addition to PCB accumulation were
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5. Direct Determination of Carbon and Nitrogen Contents of Natural Bacterial Assemblages in Marine Environments
In order to better estimate bacterial biomass in marine environments, we developed a novel technique for direct measurement of carbon and nitrogen contents of natural bacterial assemblages. Bacterial cells were separated from phytoplankton and detritus with glass fiber and membrane filters (pore size, 0.8 μm) and then concentrated by tangential flow filtrat
American Society for Microbiology.