Results 71 to 80 of about 1,278 (169)

A review of the ecological affinities of marine organic microfossils from a Holocene record offshore of Adélie Land (East Antarctica) [PDF]

open access: yesJournal of Micropalaeontology, 2018
Integrated Ocean Drilling Program (IODP) Expedition 318 recovered a  ∼ 170 m long Holocene organic-rich sedimentary sequence at Site U1357. Located within the narrow but deep Adélie Basin close to the Antarctic margin, the site accumulated ...
J. D. Hartman, P. K. Bijl, F. Sangiorgi
doaj   +1 more source

Limited Dispersal of Benthic Environmental DNA From a Subtropical Mesophotic Shelf‐Edge Bank

open access: yesEnvironmental DNA, Volume 7, Issue 5, September–October 2025.
We investigated the vertical and horizontal dispersion of eDNA away from an isolated mesophotic coral reef (Bright Bank) in stratified offshore waters. We found that vertical transport of benthic eDNA was limited by water column stratification and that the prevalence of eDNA from benthic invertebrates declined with horizontal distance away from the ...
Luke J. McCartin   +3 more
wiley   +1 more source

Metabarcoding Primers for Indo‐Pacific Fishes

open access: yesEnvironmental DNA, Volume 7, Issue 5, September–October 2025.
We compared the relative performance of five metabarcoding primers (Berry 16S, Riaz 12S, MiFish E 12S, MiFish U 12S, and Leray CO1) to recover Indo‐Pacific fish taxa. We tested the primers using template DNA from three types of samples: (1) mock communities of tissue‐based DNA extractions, (2) a semi‐natural aquarium tank, and (3) a tropical coral reef
Van Wishingrad   +7 more
wiley   +1 more source

Prevalencia de parásitos intestinales en escolares de Ciudad Bolívar, Venezuela: comparación entre dos períodos

open access: yesKasmera, 2015
; The prevalence of intestinal parasites in 921 schoolchildren from nine schools in Ciudad Bolivar, Bolivar State, Venezuela during the period 2009-2013 was determined and compared with that obtained in the same city in the period 1995-1996 in seven ...
Devera Rodolfo   +2 more
doaj  

Enteroparásitos en estudiantes de la Escuela Nacional Leoncio Quintana, municipio Maracaibo, Venezuela

open access: yesQhaliKay, 2019
Para determinar la prevalencia de parasitosis intestinales en escolares de la Escuela Nacional Leoncio Quintana del municipio Maracaibo, Venezuela, se analizaron 69 muestras fecales de ambos sexos, con edades comprendidas entre 6 y 12 años de edad.
Ellen Acurero de Yamarte   +5 more
doaj   +1 more source

Alleviation of water‐deficit inhibition of plant growth by rhizosphere microbiota conditioning

open access: yesNew Phytologist, Volume 247, Issue 6, Page 2914-2926, September 2025.
Summary Rhizosphere microbiota conditioning is a promising strategy to enhance plant growth. We conditioned the rhizosphere microbiota of Brassica juncea to water deficit to assess its impact on plant growth. In a glasshouse, plants were first grown under well‐watered conditions, then exposed to moderate (MD, pF = 2.3) or extreme (ED, pF = 3.5) water ...
Victor Angot   +7 more
wiley   +1 more source

Metabolic pathway redundancy within the apicomplexan-dinoflagellate radiation argues against an ancient chromalveolate plastid

open access: yesCommunicative & Integrative Biology, 2016
The chromalveolate hypothesis presents an attractively simple explanation for the presence of red algal-derived secondary plastids in 5 major eukaryotic lineages: “chromista” phyla, cryptophytes, haptophytes and ochrophytes; and alveolate phyla ...
Ross F. Waller   +3 more
doaj   +1 more source

Biological Flora of Britain and Ireland: Cytisus scoparius*

open access: yesJournal of Ecology, Volume 113, Issue 7, Page 1877-1933, July 2025.
Broom is an attractive and common native plant across Britain, Ireland and most of Europe, and yet it is considered a harmful and invasive weed around the rest of the world. This is aided by broom thriving on poor dry soils, helped by using green stems for photosynthesis and having root nodules to fix nitrogen.
Peter A. Thomas   +9 more
wiley   +1 more source

Synthesis of Population Trends Reveals Seascape‐Wide Reorganisation of Biodiversity From Microalgae to Birds

open access: yesGlobal Change Biology, Volume 31, Issue 6, June 2025.
We present a systematic and quantitative analysis of population trends to capture the seascape‐wide reorganisation of biodiversity from microalgae to birds. First, we categorised population trends and found over one third of populations in the Wadden Sea to change, that is, increase or decrease.
Anika Happe   +17 more
wiley   +1 more source

Genetic Analysis of Polyunsaturated Fatty Acids Biosynthesis Pathway Determines Four Distinct Thraustochytrid Types

open access: yesEnvironmental Microbiology, Volume 27, Issue 4, April 2025.
Thraustochytrids exhibit four distinct polyunsaturated fatty acid (PUFA) biosynthetic types: Type I (ELO/DES pathway), Type II (dual‐pathway) and Types III–IV (PUFA‐S pathway with varying gene losses). This genetic diversity in PUFA biosynthesis pathways provides new perspectives for understanding their evolutionary relationships and potential ...
Sou‐Yu Cheng   +4 more
wiley   +1 more source

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