Results 61 to 70 of about 2,422 (213)
Ecography, Volume 2025, Issue 10, October 2025.The core–periphery hypothesis (CPH) predicts that genetic diversity is greatest at the centre and lowest at the edges of a species' distribution because genetic diversity is a function of a species' abundance, which is also expected to be greatest at the centre and lowest at the edges of the distribution. Variants of the CPH include the ‘Ramped North' (
Daniel Cárcamo +2 more
wiley +1 more source
Molecular phylogeny of brachiopods and phoronids based on nuclear-encoded small subunit ribosomal RNA gene sequences [PDF]
, 1998 Brachiopod and phoronid phylogeny is inferred from SSU rDNA sequences of 28 articulate and nine inarticulate brachiopods, three phoronids, two ectoprocts and various outgroups, using gene trees reconstructed by weighted parsimony, distance and maximum ...
A. Gawthrop +5 more
core +1 more source
The Generic Evolution of the Palæozoic Brachiopoda [PDF]
Science, 1893 n ...
openaire +3 more sources
Methods in Ecology and Evolution, Volume 16, Issue 10, Page 2380-2394, October 2025.Abstract The identification of organisms in environmental samples using metabarcoding relies on factors such as taxonomic assignment methods, genetic markers, reference databases and confidence thresholds for taxonomic assignment. Because lineages evolve at different rates, a global threshold (e.g.
Paula Pappalardo +5 more
wiley +1 more source
The loss of the urea cycle and ornithine metabolism in different insect orders: An omics approach
Insect Molecular Biology, Volume 34, Issue 5, Page 632-644, October 2025.Among urea cycle enzymes, only the nitric oxide synthase gene is universally present across insect genomes. All Hemiptera species lack the enzymes needed to convert citrulline to arginine, and some also lack the pathway from arginine to ornithine. Putrescine and spermidine synthesis is conserved in all insects, but aphids lack the capability to produce
Jessica Cristina Silva Martins +7 more
wiley +1 more source
Molecular paleobiological insights into the origin of the Brachiopoda
, 2011 Most studies of brachiopod evolution have been based on their extensive fossil record, but molecular techniques, due to their independence from the rock record, can offer new insights into the evolution of a clade.
Pisani, Davide +2 more
core +1 more source
PHOTOGRAPHY: A CONVENIENT TECHNIQUE FOR RECORDING SERIAL TRANSVERSE SECTIONS OF BRACHIOPODS
Rivista Italiana di Paleontologia e Stratigrafia, 2017 A review of the bibliography coupled with the Authors' personal experience shows that drawing, as a technique for recording serial transverse sections of Brachiopods is inadequate and inaccurate.
CHIARA BENIGNI, CARLA FERLIGA
doaj +1 more source
Journal of the World Aquaculture Society, Volume 56, Issue 5, October 2025.Abstract The aquaculture of Argopecten purpuratus (Peruvian scallop) is a profitable activity with positive impacts on the local economy. However, the development of biofouling on the culture lantern nets generates negative environmental impacts that affect its sustainability.
Rómulo E. Loayza‐Aguilar +3 more
wiley +1 more source
The Evolution of Brachiopoda [PDF]
Annual Review of Earth and Planetary Sciences, 2016 Brachiopods are (perhaps all too) familiar to any geology student who has taken an invertebrate paleontology course; they may well be less familiar to biology students. Even though brachiopods are among the most significant components of the marine fossil record by virtue of their considerable diversity, abundance, and long evolutionary history, fewer ...
openaire +3 more sources
Papers in Palaeontology, Volume 11, Issue 5, September/October 2025.Abstract The Australian Cambrian stratigraphic record is one of the most complete for any continent. However, there is a general division, with older Cambrian rocks in South Australia (predominantly Terreneuvian, Stage 2 to Miaolingian, Wuliuan) and younger rocks in northern Australia (mostly latest Series 2, Stage 4 and younger), with minimal ...
Marissa J. Betts +5 more
wiley +1 more source