Results 71 to 80 of about 1,571,762 (244)

A global estimator of C and N isotope baselines for fresh waters

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Baselines are the pebbles in the shoes of isotope ecologists. The extreme variability of the isotope composition of resources at the base of food webs governs the spatial differences of consumers' isotope composition, so that isotope‐inferred trophic properties can be compared across ecosystems only after correction for baseline effects ...
Marie‐Elodie Perga   +7 more
wiley   +1 more source

Bridging the Late Antique Gap in Northwest Arabia: New Archaeological Evidence on the Occupation of Wādī al‐Qurā (al‐ʿUlā [AlUla], Saudi Arabia) Between the Third and Seventh Centuries CE

open access: yesArabian Archaeology and Epigraphy, EarlyView.
ABSTRACT In 2019, the Dadan Archaeological Project (CNRS/RCU/AFALULA) identified a Late Antique village 1 km south of ancient Dadan in the al‐ʿUlā valley (northwest Saudi Arabia). Three excavation seasons at this site (2021–2023) have uncovered a massive building constructed in the late third or early fourth cent.
Jérôme Rohmer   +11 more
wiley   +1 more source

Helix lutescens (Gastropoda: Helicidae) expands its range in Ukraine [PDF]

open access: yesMalacologica Bohemoslovaca
We analysed the records of Helix lutescens in Ukraine from the 19th century to the present. We found that the range of this species has expanded significantly. At the beginning of the 21st century, H.
Nina Gural-Sverlova, Roman Gural
doaj   +1 more source

Land use/land cover change, physico-chemical parameters and freshwater snails in Yewa North, Southwestern Nigeria.

open access: yesPLoS ONE, 2021
The management of ecosystem has been a major contributor to the control of diseases that are transmitted by snail intermediate hosts. The ability of freshwater snails to self-fertilize, giving rise to thousands of hatchlings, enables them to contribute ...
Opeyemi G Oso, Alex B Odaibo
doaj   +1 more source

Devouring the Invaders: The Racial‐Ecological Politics of the Chinese Crayfish Trade in Kenya

open access: yesAmerican Anthropologist, EarlyView.
ABSTRACT This article examines entanglements of ecology, race, and foodways at Lake Naivasha in Kenya. Nonnative Louisiana red swamp crayfish (Procambarus clarkii), first introduced to Kenya in the 1960s, were once viewed as invasive but are now sought after as a delicacy among Kenya's Chinese community.
Amanda Kaminsky
wiley   +1 more source

A new species of Miraphaedusa Nordsieck, 2005 (Gastropoda, Stylommatophora, Clausiliidae) from Guizhou, China [PDF]

open access: yesBiodiversity Data Journal
The genus Miraphaedusa Nordsieck, 2005 is a group of medium to large clausiliid land snails endemic to Guangxi and Guizhou Provinces of China and consists of three species.
Zhong-Guang Chen   +6 more
doaj   +3 more sources

Dealing With Inbuilt Age: A Bayesian Approach to Radiocarbon Dating of Rice, Bamboo and Charcoal From Non Ban Jak, Thailand

open access: yesArchaeometry, EarlyView.
ABSTRACT New radiocarbon determinations from rice grains and bamboo have been obtained from Non Ban Jak, Northeast Thailand. These, along with charcoal, date a late Iron Age building sequence. The results come from short‐lived species and charcoal with potential inbuilt age. We built a series of Bayesian models to obtain a reliable chronology.
C. F. W. Higham, T. F. G. Higham
wiley   +1 more source

A contemporary map of Fasciola hepatica distribution in sheep and cattle in New South Wales

open access: yesAustralian Veterinary Journal, EarlyView.
Fasciola hepatica is a global threat to livestock production, human health, and food security. Infection causes significant reductions in milk production and quality, feed conversion efficiency, wool quality, and reproductive performance. In New South Wales (NSW), Australia, data on the distribution of F. hepatica are more than 50 years out of date and
SN Vyas   +3 more
wiley   +1 more source

Monitoring small‐scale fisheries through participatory, app‐based surveys in the tropical archipelago of São Tomé and Príncipe

open access: yesConservation Science and Practice, EarlyView.
Small Island Developing States have limited capacity to monitor Small Scale Fisheries, despite their high dependence on marine resources. Participatory monitoring of Small Scale Fisheries can fill data gaps while integrating resource users into fisheries management.
Guillermo Porriños   +17 more
wiley   +1 more source

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