A5060667803- Diatoms and Algae Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Freshwater macroinvertebrate diversity and ecology
- Analytical chemistry methods development
- Paleontology and Stratigraphy of Fossils
- Proteins in Food Systems
- Microbial Community Ecology and Physiology
- Microencapsulation and Drying Processes
- Protist diversity and phylogeny
- Marine and coastal ecosystems
- Fish biology, ecology, and behavior
- Genomics and Phylogenetic Studies
- Aquatic Invertebrate Ecology and Behavior
- Polysaccharides Composition and Applications
- Geology and Paleoclimatology Research
- Botany, Ecology, and Taxonomy Studies
- Mycorrhizal Fungi and Plant Interactions
- Delphi Technique in Research
- Plant Pathogens and Fungal Diseases
- Food Chemistry and Fat Analysis
- Long-Term Effects of COVID-19
- Algal biology and biofuel production
- Lichen and fungal ecology
- Botanical Research and Chemistry
- Yeasts and Rust Fungi Studies
Universidad de La Frontera
2012-2024
University of Évora
2018-2023
National Bureau of Economic Research
2023
Bank of Spain
2023
Centro de Estudios Monetarios y Financieros
2023
Federal Reserve Board of Governors
2023
SIL International
2023
Federal Reserve
2023
Princeton University
2023
Universidad de Costa Rica
2023
Heterosperman pinnatum is an annual composite that produces heteromorphic achenes, with the proportion of achene morphs varying geographically. Field, greenhouse, and laboratory experiments were used to examine ecological consequences heteromorphism. Achenes classified into three types based on morphology. Central, intermediate, peripheral morphs, named for positions occupied within fruiting head, range in shape from long, thin—beaked barbed awns (central) short wide achenes without beaks or...
Abstract The main objective of this study was to develop an optimized formulation soup powder enriched with omega‐3 fatty acids. For purpose, the process conditions for optimizing microencapsulation efficiency (ME) linseed oil by spray drying were determined using Taguchi methodology orthogonal array L 4 (2 3 ). effect variables on ME, such as wall material concentration (25 and 30%), (14 20%), type (gum arabic GA; a mixture maltodextrin/GA), evaluated. oxidative stability microcapsules...
Ecological preferences and distribution of Aulacoseira species in southeastern Brazilian reservoirs with varying trophic states were studied. One hundred fourteen plankton samples (winter summer) from 57 sites located 16 analysed. Ten water quality parameters measured. identified using light, scanning transmission electron microscopy, new information on their ecological is provided here. Our results indicate that gradient the main driver distribution. Principal components analysis...
Salar de Uyuni (SdU), with a geological history that reflects 50 000 years of climate change, is the largest hypersaline salt flat on Earth and estimated to be biggest lithium reservoir in world. Its salinity reaches saturation levels for NaCl, kosmotropic salt, high concentrations MgCL2 LiCl, both salts considered important chaotrophic stressors. In addition, extreme temperatures, anoxic conditions, UV irradiance, albedo extremely low phosphorous, make SdU unique natural environment which...
As part of a larger systematic and taxonomic revision, including molecular phylogenetic analysis, lichenized Basidiomycota in the Dictyonema clade, ten species are described as new from tropical America, seven foliose genus Cora three filamentous Dictyonema: arachnoidea J. E. Hern. & Lücking, sp. nov., C. aspera Wilk, Lücking Morales, byssoidea Moncada, cyphellifera Dal-Forno, Bungartz inversa squamiformis Yánez-Ayabaca, strigosa Paz L. Salcedo, aeruginosulum Nelsen Will-Wolf, D....
Oleogels based on the combination of oleogelators and vegetable oils are a fat substitute alternative to obtain commercial fats (CF) with reduced saturated fatty acids (SFA), high polyunsaturated (PUFA), without trans (TFA). This study evaluated oleogelation develop beeswax/shellac wax (BW/SW) linseed (LO) canola (CO) oil-based oleogels solid gel-like texture PUFA. The conditions were optimized, then characterized. optimal were: oleogelator percentage 10% (w/w), BW/SW ratio 70/30 (%w/w),...
A common challenge in hydrogel-based delivery systems is the premature release of low molecular weight encapsulates through diffusion or swelling and reduced cell viability caused by pH gastric conditions. second biopolymer, such as chitosan, can be incorporated to overcome this. Chitosan usually associated with colonic drug systems. We intended formulate chitosan-coated pectin beads for use delaying encapsulate under conditions but allowing disintegration intestinal The latter utmost...
Several fragilarioid diatoms were found in surface sediment samples from Connecticut (U.S.A.) as part of a paleolimnological study on set 60 freshwater lakes. Observation acid-digested material under scanning electron microscopy (SEM) revealed morphological variants Staurosira and Stauroforma absent or seldom illustrated the literature. Morphological reported here could be misidentified during routine ecological analyses due to limitations at light (LM) level because identification keys do...
We summarize research on variation in achene morphology of Heterosperma pinnatum. Each flowering head has a broad range morphologies. There is no between‐year seed bank. are ecologically relevant differences size, seedling or growth rates the different morphs. Achenes located centrally heads lose dormancy earlier during period between autumn production and onset (May‐July) rainy season. This results relatively more early emergence central achenes. Awned achenes also have greater adhesive...
Abstract We provide an expanded and updated, 2-locus phylogeny (mtSSU, nuLSU) of the lichenized fungal family Trypetheliaceae , with a total 196 ingroup OTUs, in order to further refine generic delimitations species concepts this family. As result, following 15 clades are recognized as separate genera, including five newly established genera: Aptrootia Architrypethelium Astrothelium (including bulk corticate astrothelioid ascospores; synonyms: Campylothelium Cryptothelium Laurera ),...
Identification of diatom frustules, a vital step during ecological analyses, is greatly influenced by the magnification at which samples are examined. The striking differences between Light Microscopy (LM) and Scanning Electron (SEM) reveal inconsistencies in identification diatoms low magnifications. These hinder comparative analyses data sets collected several research centers may be hiding information potential value assessment ecosystem health. Additionally, SEM has had marked impact on...
Studies of the coastal sedimentary record have allowed both reconstruction relative sea-level changes and determination local rates magnitudes tectonic deformation, particularly in tectonically active areas. Despite their successful use elsewhere, studies this type are much less common for Mexican Pacific coast, which parallels Cocos-North America subduction plate boundary. Stratigraphic, geochemical microfossil data from sediments Laguna Mitla, coast Guerrero, Mexico, document late-Holocene...
A floristic study based on epilithic samples collected from Bolivian cloud forest streams yielded a total of 172 taxa, 41 which were new or could not be determined available literature. Five taxa at the species and form levels (Gomphonema andinum, G. pumilum var. elegans f. biseriatum, rigidum Nitzschia boliviana, N. soratensis) two combinations (Pseudostaurosira laucencis Ulnaria contracta) are presented. Undetermined only listed herein more detailed will presented later date. The large...
Representatives of the Achnanthidium minutissimum (Kutz.) Czarn. complex are common and widespread diatoms in Poland. The following species were included this study: affine (Grunow) Czarn., A. caledonicum (LanGe-Bert.) LanGeBert., eutrophilum LanGe-Bert., exile HeiB., jackii raBenH., lineare w. Sm., minutissimum. Two additional here formally described, namely polonicum Van de VijVer, wojtaL, e. moraLeS et eCtor acsiae moraLeS, VijVer eCtor. Information for an taxon is presented here, but it...