Results 31 to 40 of about 21,498 (271)

Assessment of microplastics in discharged treated wastewater and the utility of Chrysaora pentastoma medusae as bioindicators of microplastics

open access: yes, 2021
Microplastics are ubiquitous pollutants in aquatic environments globally. Wastewater treatment plants are considered to be a major source of microplastics and jellyfish have been proposed as potential bioindicators of microplastic pollution.
Sucharitakul, Phuping   +2 more
core   +1 more source

Dental anomalies in Pleistocene African hippopotamuses from Olduvai Bed II

open access: yesThe Anatomical Record, EarlyView.
Abstract Hippopotamuses are key palaeoenvironmental indicators in African Pleistocene ecosystems due to their ecological dependence on permanent water bodies and their frequent representation in the fossil record. This study examines dental anomalies in Hippopotamus cf. gorgops from several localities in Bed II of Olduvai Gorge (Tanzania), dated to ca.
Darío Fidalgo   +4 more
wiley   +1 more source

Monitoring marine plastics – will we know if we are making a difference?

open access: yesSouth African Journal of Science, 2020
In the context of marine anthropogenic debris management, monitoring is essential to assess whether mitigation measures to reduce the amounts of waste plastic entering the environment are being effective.
Peter G. Ryan   +3 more
doaj   +1 more source

Does the Ant Functional Group Classification Really Work? A Validation in Two Contrasting Habitats from Central Mexico

open access: yesEkológia (Bratislava), 2023
Ants have historically been classified into “functional groups” (FGs) to facilitate their interpretation as bioindicators. A particularly popular classification scheme is the one proposed by Andersen, based on the Australian myrmecofauna.
Reyes-Morales Paola Sofia   +3 more
doaj   +1 more source

First reports on the relationship between the eggshell and bone mineralization in Rhinoclemmys punctularia punctularia embryos

open access: yesThe Anatomical Record, EarlyView.
Abstract Composed of various minerals, the eggshell provides ideal conditions for embryonic development, and understanding its composition and structure is essential for clarifying its relationship with bone formation. This study characterized the structure and mineral profile of the Rhinoclemmys punctularia punctularia eggshell in relation to ...
Igor Mathias Trindade Lemos   +8 more
wiley   +1 more source

Coenotic structure, skull asymmetries and other morphological anomalies in small mammals near an electronuclear power plant

open access: yesHystrix, the Italian Journal of Mammalogy, 1994
<strong>Abstract</strong> A nuclear power plant was in operation in the Garigliano alluvial plain (Central Italy) from 1964 through 1978, a period marked by several accidents. The nuclear site is now utilized for storage of radiactive wastes
Domenica Amarena   +2 more
doaj   +1 more source

Determination of heavy metal deposition in the county of Obrenovac (Serbia) using mosses as bioindicators, IV: Manganese (Mn), Molybdenum (Mo), and Nickel (Ni) [PDF]

open access: yesArchives of Biological Sciences, 2009
In this study, the deposition of three heavy metals (Mn, Mo, and Ni) in the county of Obrenovac (Serbia) in four moss taxa (Bryum argenteum, Bryum capillare, Brachythecium sp., and Hypnum cupressiforme) is presented.
Vukojević V.   +5 more
doaj   +1 more source

From apex to base: Uncovering spatial metabolic adaptation in Antarctic mosses

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Antarctic mosses survive extreme cold, desiccation, UV exposure, and oxidative stress. We analyzed three species by separating apical, middle, and basal zones. Each zone showed distinct metabolite patterns and biological roles, revealing spatial metabolic specialization. The results suggest that whole‐plant survival depends on coordinated contributions
Fatima Tuz Zahra   +7 more
wiley   +1 more source

Nitrogen Deposition Enhances Photosynthesis in Moso Bamboo but Increases Susceptibility to Other Stress Factors

open access: yesFrontiers in Plant Science, 2017
Atmospheric nitrogen (N) deposition can increase the susceptibility of vascular plants to other stresses, but the physiological basis of such a response remains poorly understood.
Rui Zhang   +10 more
doaj   +1 more source

Soil-associated lichens in rangelands of north-eastern Patagonia. Lichen groups and species with potential as bioindicators of grazing disturbance [PDF]

open access: yes, 2004
Soil-associated lichen species characteristic of north-eastern Patagonia are classified by cluster analysis into six groups using ecological and morphological characters.
Carrera, Analía Lorena   +2 more
core   +1 more source

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