Results 241 to 250 of about 64,347 (303)

Passive environmental DNA sampling: A review of current practices, limitations and future directions for biodiversity monitoring

Methods in Ecology and Evolution, EarlyView.
Abstract Passive environmental DNA (eDNA) sampling is rapidly emerging as a powerful alternative to active sampling methods (e.g. direct water sampling), with a rapidly growing diversity of tested approaches but little methodological convergence.
Fidji Sandré, Marie‐Pier Brochu, Valérie S. Langlois   +2 more
wiley   +1 more source

Fats, Fire and Bronze Age Funerary Rites: Organic Residue Analysis of Wide Horizontal Rim Vessels From Burial Contexts in Northwest Portugal

Archaeometry, EarlyView.
ABSTRACT This study presents the first GC‐MS–based analyses of wide horizontal rim vessels with well‐defined funerary contexts, from Middle Bronze Age Portugal (Quinta do Amorim 2 and Pego). Organic residues from two vessels revealed ruminant fats and plant oils, alongside molecular markers of heat exposure.
João Vinícius Back, César Oliveira, Ana M. S. Bettencourt, Hugo Aluai Sampaio, Luciano Vilas Boas, Luís Gonçalves   +5 more
wiley   +1 more source

Response of Remote Tropical West Pacific Islands to Climate Variability: A Multiproxy Record From T‐Lake, Palau, Spanning the Early Holocene to Present

Archaeometry, EarlyView.
ABSTRACT Lake sediments are natural archives of past environmental dynamics and how these systems have responded to past climate variability. Sediment geochemistry, governed by local geology and climate processes, is unique to each lake‐catchment and geochemical proxies must be validated for each study site.
Jalene Nalbant, Larissa Schneider, Jessica L. Blois, Matthew Wolhowe, Julian P. Sachs, Simon G. Haberle, Geoffrey Clark   +6 more
wiley   +1 more source

A limpet's eye view of post‐glacial isostasy: fixed biological indicators provide new sea‐level index points for the Mid‐Holocene relative highstand in eastern Northern Ireland

Boreas, EarlyView.
Bioerosional scars made by limpets (Patella) on a cliff in Co. Antrim, Northern Ireland, indicate a Mid‐Holocene RSL of +7.8±0.55 m relative to local mid‐tide level today. This is higher than previous empirical data for the region and extrapolated levels from raised shorelines in Scotland but consistent with some recent GIA models.
Michael J. Simms, Paula J. Reimer
wiley   +1 more source

Lipid-correcting and antioxidant effects of the lipid complex from the red marine algae Ahnfeltia tobuchiensis under the conditions of a high-fat diet

В. Г. Спрыгин, Н. Ф. Кушнерова, С. Е. Фоменко, Е. С. Другова, Л. Н. Лесникова, V.Yu. Merzlyakov   +5 more
openalex   +2 more sources

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Bromophenols from Red Algae

Science, 1967
3,5-Dibromo- p -hydroxybenzyl alcohol is reported as a natural constituent of Odonthalia dentata and Rhodomela confervoides . The amounts isolated, based on the fresh weight of the tissue, were 0.024 and 0.003 percent, respectively.
J S, Craigie, D E, Gruenig
openaire   +2 more sources

Red algae

Current Biology
Borg introduces the red algae - the largest living group of seaweeds.
openaire   +4 more sources

Carotenoids in red algae

Phytochemistry, 1976
Abstract The carotenoid composition of the following 8 species of red algae has been studied quantitatively and qualitatively: Bangia fuscopurpurea, Nemalion helminthoides, Bonnemaisonia hamifera (tetrasporophyte), Gigartina stellata, Rhodymenia palmata, Ceramium rubrum, Polysiphonia brodiaei, and Polysiphonia urceolata.
Terje Bjørnland, Martha Aguilar-Martinez   +1 more
openaire   +1 more source

STUDIES OF FRESHWATER RED ALGAE

American Journal of Botany, 1947
SINCE 1944 occasional collections of fresh-water red algae have been made by the writer, principally in Louisiana and New Hampshire. A first report on these plants concerned the genera Porphyridium, Audouinella, Compsopogon, Sacheria, and Lemanea (Flint, 1947).
openaire   +2 more sources

Algae in red

Nature, 1992
Dunaliella: Physiology, Biochemistry and Biotechnology. Edited by M. Avron and A. Ben-Amotz. CRC Press: 1992. Pp. 240. a£109, $149.95.
openaire   +1 more source