Results 131 to 140 of about 33,885 (314)

Holocene sea‐level and environmental changes on the Isle of Mull, Scotland

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Sea‐level and coastal changes are reconstructed on the Isle of Mull, western Scotland, from 10 988 to 10 507 cal BP to the present. This research has produced the first SLIP for the Isle of Mull. A multiproxy approach including pollen, spore, foraminifera and diatom analyses reveals palaeoenvironmental changes from two coastal sites.
Katherine A. Selby   +6 more
wiley   +1 more source

Gastropod species found in birds' nests from Argentina [PDF]

open access: yes, 2015
Los nidos de aves son ejemplos de hábitats ocupados por un conjunto de invertebrados, como insectos, arañas, pseudoescorpiones, etc. Por primera vez se presenta una lista de gasterópodos encontrados en nidos aviarios de la Argentina.
Di Iorio, Osvaldo Rubén   +2 more
core  

"Two tribes": Handaxe shape variation shows distinct regional cultural groups in southeastern Britain between 424 000 and 374 000 BP

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT This paper examines regional and chronological variations in Acheulean handaxe morphology during Marine Isotope Stage 11 (c. 425–365 ka BP) in Britain. Using a data set of 737 handaxes from 13 securely dated sites in East Anglia and the Thames Valley, we apply three‐dimensional geometric morphometric analysis to examine morphological ...
Mark White   +5 more
wiley   +1 more source

Toxicidade aguda do sulfato de cobre e do extrato aquoso de folhas secas de nim para o caramujo (Pomacea canaliculata) = Acute toxicity of copper sulfate and aqueous extract of dried neem leaves on snails (Pomacea canaliculata)

open access: yesActa Scientiarum: Biological Sciences, 2008
Os caramujos podem se tornar um problema ambiental e econômico, podendo causar muitos prejuízos. O trabalho teve como objetivo estimar a toxicidade aguda do sulfato de cobre pentaidratado (CuSO4.5H2O) e do extrato aquoso de folhas secas de nim para o P ...
Francine Perri Venturini   +2 more
doaj  

Microemulsion‐Based Drilling Fluids Incorporating Seashell Residue Powder: A Sustainable Approach to Fluid Loss Control

open access: yesJournal of Surfactants and Detergents, EarlyView.
Two microemulsion‐based drilling fluids incorporating SSRP were formulated using pine oil, the nonionic surfactant Alkonat L100W, and a glycerol/water solution. The results provide valuable insights into how surfactant‐assisted microemulsion systems can be engineered to enhance the performance and eco‐efficiency of drilling fluids.
Luara Ribeiro Viana   +6 more
wiley   +1 more source

Suspended particulates decline along a dense mussel bed in a small Minnesota stream, U.S.A.

open access: yesJournal of Freshwater Ecology
Water filtration by freshwater mussels (Bivalvia: Unionidae) is a valued ecosystem service; however, it has not been well studied in natural settings.
Jillian Fedarick   +2 more
doaj   +1 more source

The use of edible insects in human food

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract The world population is expected to reach approximately 10 billion people by 2050, which will significantly increase global food demand and may lead to agricultural shortages and a higher risk of food insecurity. In this context, this review discusses the potential of insects as alternative sources of animal protein, addressing their ...
Pamela Barroso de Oliveira   +5 more
wiley   +1 more source

Nearshore marine ecology at Hutchinson Island, Florida: 1971-1974. VI. plankton dynamics, 1971-1973, VII. phytoplankton 1971-1973, VIII. zooplankton, 1971-1973, IX. diel plankton, 1973-1974, X. benthic algae species list [PDF]

open access: yes, 1979
(Document has 122 pages.
Glass, Brian M.   +6 more
core  

Contrasted habitat selection among Eurasian curlew populations according to landscape heterogeneity and breeding stage

open access: yesThe Journal of Wildlife Management, EarlyView.
This study aimed to quantify the spatio‐temporal use of breeding environments by the Eurasian curlew in 5 contrasting agricultural landscapes. To this end, 64 individuals were tagged with GPS devices to assess their space use according to their breeding stages and define their foraging habitat selection.
Marie Donnez   +15 more
wiley   +1 more source

β‐Chitin and chitosan from waste shells of edible mollusks as a functional ingredient

open access: yesFood Frontiers
The marine food‐processing industries were producing large quantities of shell wastes as a discard. Currently, this waste material was underutilized and leads to the landfill as a significant environmental issue.
Durairaj Karthick Rajan   +7 more
doaj   +1 more source

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