11 documents found, page 1 of 2
Meiofauna in a changing world
Moens, Tom; Sroczynska, Katarzyna; Adão, HelenaThis special issue emerged under the umbrella of the 17th International Meiofauna Conference (SeventIMCO), which celebrated the 50th anniversary (1969–2019) of the International Association of Meiobenthologists under the general theme “Meiofauna in a changing world”. Traditionally, the triannual IMCO is the major assembly for scientists who are active in very divergent disciplines such as taxonomy, phylogeny, e...
BioTIME: A database of biodiversity time series for the Anthropocene
Dornelas, Maria; Antão, Laura H.; Moyes, Faye; Bates, Amanda E.; Magurran, Anne E.; Adam, Dušan; Akhmetzhanova, Asem A.; Appeltans, WardMotivation The BioTIME database contains raw data on species identities and abundances in ecological assemblages through time. These data enable users to calculate temporal trends in biodiversity within and amongst assemblages using a broad range of metrics. BioTIME is being developed as a community-led open-source database of biodiversity time series. Our goal is to accelerate and facilitate quantitative analy...
A comparative analysis of benthic nematode assemblages from Zostera noltii beds...
Materatski, Patrick; Vafeiadou, Anna-Maria; Ribeiro, Rui; Moens, Tom; Adão, HelenaBenthic nematodes are widely regarded as very suitable organisms to monitor potential ecological effects of natural and anthropogenic disturbances in aquatic ecosystems. During 2008, the seagrass beds of Zostera noltii located in the Mira estuary (SW Portugal) disappeared completely. However, during 2009, slight symptoms of natural recovery were observed, a process which has since evolved intermittently. This s...
The role of seagrass-associated resources in an estuarine benthic food web
Vafeiadou, Anna-Maria; Materatski, Patrick; Adão, Helena; De Troch, Marleen; Moens, TomBenthos have a key role in marine food webs by linking primary production to higher trophic levels, enhancing energy and nutrient transfer between the sediments and the pelagic zone. In seagrass ecosystems trophic relations are complex due to large resource variability. This study focuses on the benthic food web in a Zostera noltii seagrass habitat (Mira Estuary, Portugal). We examined resource utilization of t...
Resource utilization and trophic position of nematodes and harpacticoid copepod...
Vafeiadou, Anna-Maria; Materatski, Patrick; Adão, Helena; Moens, TomThis study examines the resource use and trophic position of nematodes and harpacticoid copepods at the genus/species level in an estuarine food web in Zostera noltii beds and in adjacent bare sediments using the natural abundance of stable carbon and nitrogen isotopes. Microphytobenthos and/or epiphytes are among the main resources of most taxa, but seagrass detritus and sediment particulate organic matter con...
Benthic nematode assemblage response during the early phase of a natural recove...
Adão, Helena; Materatski, Patrick; Vafeiadou, Anna-Maria; Moens, TomBenthic nematodes are widely regarded as very suitable organisms to monitor potential ecological effects of natural and anthropogenic disturbances in aquatic ecosystems. During 2008, the stable seagrass beds of Zostera noltii located in Mira estuary (SW Portugal) disappeared completely. However, during 2009, slight symptoms of natural recovery were observed, a process which has since evolved intermittently. Thi...
Food sources of macrobenthos in an estuarine seagrass habitat (Zostera noltii) ...
Vafeiadou, Anna-Maria; Materatski, Patrick; Adão, Helena; De Troch, Marleen; Moens, TomStable carbon and nitrogen isotope analysis was used to examine the resources and position of macrobenthos in an estuarine seagrass food web in two sampling moments, during summer and winter. The contribution of each food source to the carbon requirements of consumers was estimated by a mixing model. The used carbon sources were largely seagrass associated, although seagrass tissues were utilized by only few sp...
Sample acidification effects on carbon and nitrogen stable isotope ratios of ma...
Vafeiadou, Anna-Maria; Adão, Helena; De Troch, Marleen; Moens, TomAcidification treatment has been used in most stable isotope studies to eliminate inorganic non-dietary carbon, allowing d13C measurement of organic carbon needed for trophic studies. Because only limited information about the acidification effects on isotopic ratios exists in the literature, we provide an assessment of such effects for a wide range of benthic macroinvertebrates from estuarine intertidal sedime...
Benthic Nematode assemblages response to seagrass beds spatial heterogeneity in...
Materatski, Patrick; Moens, Tom; Vafeiadou, Anna-Maria; Adão, HelenaAfter a seagrass beds (Zostera noltii) colapse in 2008 of the Mira estuary (SW coast of Portugal) symptoms of early recovery were observed. The principal goal of this study is to assess the evolution and resilience of the benthic nematodes assemblages during the natural recovery of the seagrass beds through analysis of the spatial and temporal differences in structural and functional characteristics of the comm...
Recovery of benthic nematode assemblages after a major collapse of Zostera nolt...
Materatski, Patrick; Vafeiadou, Anna-Maria; De Troch, Marleen; Moens, Tom; Adão, HelenaDuring 2008, Zostera noltii seagrass beds of the Mira estuary (SW coast of Portugal) suffered a total collapse, though during 2009 slight symptoms of their recovery were already observed. This association of events, in a short period of time, creates a rare opportunity for obtaining new knowledge concerning natural recovery of ecosystems and habitats. The principal goal is to analyse nematode community response...