Results 61 to 70 of about 34,054 (264)

A micro‐CT approach to the anatomy of Pectinariidae Quatrefages, 1866 (Annelida)

open access: yesActa Zoologica, EarlyView.
Abstract The Micro‐computed X‐ray tomography (micro‐CT) technique is used to examine the external and internal anatomy of four species of Pectinariidae (Annelida: Terebellida): Amphictene auricoma, Cistenides granulata, Cistenides hyperborea and Lagis sp., from material collected off Iceland and NW Spain.
Julio Parapar   +3 more
wiley   +1 more source

Mitochondrial genome of Pseudopotamilla reniformis (Annelida: Sabellidae)

open access: yesMitochondrial DNA. Part B. Resources, 2023
Here, we report the complete mitochondrial genome of sabellid Pseudopotamilla reniformis (Bruguière, 1789) (16,408 bp) and comprised of two ribosomal RNAs, the ubiquitous set of 13 protein-coding sequences, and 22 tRNAs. The order of protein-coding genes
Dmitry Fedorov   +3 more
doaj   +1 more source

Biodiversity in mountain soils above the treeline

open access: yesBiological Reviews, EarlyView.
ABSTRACT Biological diversity in mountain ecosystems has been increasingly studied over the last decade. This is also the case for mountain soils, but no study to date has provided an overall synthesis of the current state of knowledge. Here we fill this gap with a first global analysis of published research on cryptogams, microorganisms, and fauna in ...
Nadine Praeg   +36 more
wiley   +1 more source

Mitochondrial genome of Sabella spallanzanii (Gmelin, 1791) (Sabellida: Sabellidae)

open access: yesMitochondrial DNA. Part B. Resources, 2021
We report the mitochondrial genome of Sabella spallanzanii, an invasive Mediterranean sabellid introduced to Australia and New Zealand. The mitogenome is 15,581 bp long and consists of 38 genes, including 13 protein coding genes, two rRNA genes, and 23 ...
Guillemine Daffe   +3 more
doaj   +1 more source

Influence of Chironomus riparius (Diptera, Chironomidae) and Tubifex tubifex (Annelida, Oligochaeta) on oxygen uptake by sediments. Consequences of uranium contamination [PDF]

open access: yes, 2008
The diffusive oxygen uptake (DOU) of sediments inhabited by Chironomus riparius and Tubifex tubifex was investigated using a planar oxygen optode device, and complemented by measurements of bioturbation activity.
Bonzom, Jean-Marc   +5 more
core   +3 more sources

The evolution of reproduction in Ediacaran–Cambrian metazoans

open access: yesBiological Reviews, EarlyView.
ABSTRACT The evolution of reproductive style is a fundamental aspect of metazoan life history but has not been explored holistically through the Ediacaran–Cambrian rise of metazoans. Recent molecular clock analyses based on only unequivocal metazoan fossil calibrations suggest that Porifera were present by at least 590 million years ago (Ma), all major
Rachel A. Wood, Mary L. Droser
wiley   +1 more source

Leech Parasitism of the Gulf Coast Box Turtle, Terrapene carolina major (Testudines:Emydidae) in Mississippi, USA [PDF]

open access: yes, 2017
Ten leeches were collected from a Gulf Coast box turtle, Terrapene carolina major, found crossing a road in Gulfport, Harrison County, Mississippi, USA. Eight of the leeches were identified as Placobdella multilineata and 2 were identified as Helobdella
Hammond, C. I.   +4 more
core   +3 more sources

Species delimitation in Amblyosyllis (Annelida, Syllidae)

open access: yesPLOS ONE, 2019
Amblyosyllis is a worldwide distributed group of annelids mainly found in coastal environments. It is well known among the polychaete specialists mostly because of its notable beauty, showing bright colourful patterns and outstanding long and coiled appendices.
João Gil   +7 more
openaire   +10 more sources

d‐amino acids: new functional insights

open access: yesThe FEBS Journal, EarlyView.
This review explores recent advances in understanding d‐amino acids (d‐AAs) and their pivotal roles across organisms, from plants to humans. d‐AAs have been implicated in key physiological processes, including cancer, inflammation, immune regulation, kidney disease, diabetes, and nervous system function.
Loredano Pollegioni   +5 more
wiley   +1 more source

Amynthas aspergillum (Perrier, 1872) (Clitellata, Megascolecidae): A new addition to the South Asian earthworm fauna [PDF]

open access: yesOpuscula Zoologica Instituti Zoosystematici et Oecologici Universitatis Budapestinensis
The presence of the exotic and potentially invasive pheretimoid earthworm Amynthas aspergillum (Perrier, 1872) of the family Megascolecidae is reported for the first time from South Asia.
Narayanan, Sasankan Prasanth   +3 more
doaj   +1 more source

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