Results 101 to 110 of about 22,372 (223)

Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade

open access: yesBiological Reviews, Volume 101, Issue 4, Page 1760-1778, August 2026.
ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan   +2 more
wiley   +1 more source

Biogeochemistry of sediment core CD86_07_BC4 [PDF]

open access: yes, 2004
Biogeochemistry of sediment core ...
Boski, Tomasz   +7 more
core   +1 more source

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

open access: yesArchaeometry, Volume 68, Issue 4, Page 646-658, August 2026.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay   +3 more
wiley   +1 more source

Viruses in aquatic ecosystems: important advancements of the last 20 years and prospects for the future in the field of microbial oceanography and limnology

open access: yesAdvances in Oceanography and Limnology, 2010
Over the last two decades, viruses in aquatic systems have been observed to modify, influence and control aquatic systems. Since the determination decades ago that viruses were abundant in aquatic ecosystems, researchers have demonstrated that viruses ...
Stéphan Jacquet   +4 more
doaj   +1 more source

Biogeochemistry of sediment core PLUTUR6_BOXT01 [PDF]

open access: yes, 2004
Biogeochemistry of sediment core ...
Jean-Marie Jouanneau (7886066)   +3 more
core   +1 more source

Physiological Controls on Carbon Fluxes and Biomass Production in Miscanthus: Insights From a Process‐Based Agroecosystem Model

open access: yesGCB Bioenergy, Volume 18, Issue 8, August 2026.
Miscanthus productivity is governed by interacting plant processes from phenology and canopy development to carbon assimilation. Data‐constrained simulations reveal that photosynthetic protein allocation sets productivity potential, while electron transport capacity remains a key regulator of additional productivity gains.
Zhongjing Jiang   +13 more
wiley   +1 more source

Biogeochemistry of sediment core PLUTUR6_BOXT14 [PDF]

open access: yes, 2004
Biogeochemistry of sediment core ...
Jean-Marie Jouanneau (7886066)   +3 more
core   +1 more source

Soil phosphorus drives subcontinental patterns of carbon isotope discrimination across Australia

open access: yesNew Phytologist, Volume 251, Issue 3, Page 1038-1053, August 2026.
Summary Several transects have been established to study the sensitivity of carbon isotope discrimination (Δ13C) in woody plants to mean annual precipitation (MAP) across Australia. These have shown a surprising divergence in Δ13C‐MAP sensitivity among subcontinental regions.
Iftakharul Alam   +8 more
wiley   +1 more source

Landscape challenges to ecosystem thinking: Creative flood and drought in the American Southwest

open access: yesScientia Marina, 2001
Stream ecology is undergoing a transition from ecosystem to landscape science. This change is reflected in many studies; work at Sycamore Creek in Arizona will be used to illustrate the challenges of this transition and several applications.
Stuart G. Fisher   +3 more
doaj   +1 more source

Biogeochemistry in sediment core HE180_1904 [PDF]

open access: yes, 2005
Biogeochemistry in sediment core ...
Helge Niemann (7900148), Niemann, Helge
core   +1 more source

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