Seasonal and spatial variations of saltmarsh benthic foraminiferal communities from North Norfolk, England

Time series foraminiferal data were obtained from samples collected from three sites at Brancaster Overy Staithe, Burnham Overy Staithe and Thornham on the North Norfolk coast over a 1-year period. At each collection point, six environmental variables—temperature, chlorophyll, sand, mud, pH and salinity—were also measured. The principle aim of this study was to examine the benthic foraminiferal fauna in regard to the temporal variability of foraminiferal abundance, seasonal trend, dominant species, species diversity and the impact of environmental variables on the foraminiferal communities in the top 1 cm of sediment over a 1-year time series. The foraminiferal assemblages at the three sites were dominated by three species: Haynesina germanica, Ammonia sp. and Elphidium williamsoni. Foraminiferal species showed considerable seasonal and temporal fluctuation throughout the year at the three investigated sites. The foraminiferal assemblage at the three low marsh zones showed a maximum abundance in autumn between September and November and a minimum abundance observed between July and August. There were two separate peaks in the abundance of Ammonia sp. and E. williamsoni, one in spring and another in autumn. In contrast, H. germanica showed a single peak in its abundance in autumn. A generalized additive modelling approach was used to explain the variation in the observed foraminiferal abundance and to estimate the significant impact of each of the environmental variables on living foraminiferal assemblages, with taxa abundance as the dependent variable. When included in the model as predictors, most of the environmental variables contributed little in explaining the observed variation in foraminiferal species abundance. However, the hypotheses for differences amongst sites, salinity and pH were significant and explained most of the variability in species relative abundance

Corporate Strategy and Program Framework 2005 - 2010

French version available in IDRC Digital Library: Consultation régionale menée en Amérique latine et dans les Caraïbes à Montevideo, 3-4 déc. 200

Stratégie générale et cadre de programme 2005 - 2010

Version anglaise disponible dans la Bibliothèque numérique du CRDI: Latin America and the Caribbean regional consultation, Dec. 3-4, 2003, Montevide

IDRC governors delegation : Senegal and the Gambia, Feb. 10-15, 2002

Contains 2 rm filesDirector: Federico BuroneCopy #2 under Unclassified archive author: ONEIL no. 117540Some text in FrenchRequires installation of RealPlayer version 8 to view videosContains press clippings, photos and video footage, including an interview with IDRC President Maureen O'Nei

Chasing a ghost : current research on environment and employment in Spain

Spanish version available in IDRC Digital Library: Medio ambiente y empleo : estado de la cuestión en el Estado español y perspectivas de investigació

Medio ambiente y empleo : estado de la cuestión en el Estado español y perspectivas de investigación

Versión en inglés disponible en la Biblioteca Digital del IDRC: Chasing a ghost : current research on environment and employment in Spai

ECOPLATA : from science to policy innovations; panel of Sunday, June 27, 2004, Coastal Zone Canada 2004 [conference], Delta Hotel, St. John's, NL

Parallel text in English and FrenchAudio digital file in English onlyAudio file requires Windows Media or Real PlayerIDRC personnel Federico Burone participates in a panel discussion on managing the Rio de la Plata, South America's largest estuar