Results 61 to 70 of about 6,700 (222)

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, Héctor Antônio Assunção Romão, Carolina Kurotusch Canettieri, Amanda Caetano Cercilian, Patrícia Rasteiro Ordiale Oliveira, Clelia Ferreira, Walter R. Terra, Renata de Oliveira Dias   +7 more
wiley   +1 more source

The Generic Evolution of the Palæozoic Brachiopoda [PDF]

Science, 1893
n ...
openaire   +3 more sources

Biofouling reduction by lantern nets exchange and its relationship with production and survival of Argopecten purpuratus in Samanco Bay, Peru

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, Guillermo B. Saldaña‐Rojas, Fernando Merino, Gustavo E. Olivos‐Ramirez   +3 more
wiley   +1 more source

Biostratigraphy and correlation of the Cambrian Series 2 (Stage 4) to Miaolingian (Wuliuan) Thorntonia Limestone, south‐eastern Georgina Basin (Queensland, Australia)

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, Patrick M. Smith, John R. Paterson, Evelyn M. Mervine, Daniel A. Stirling, James D. Holmes   +5 more
wiley   +1 more source

An in situ shelly fauna from the lower Paleozoic Zapla diamictite of northwestern Argentina: implications for the age of glacial events across Gondwana [PDF]

, 2015
A shelly fauna from the upper part of the Zapla glacial diamictite includes thelingulate brachiopod Orbiculoidea radiata Troedsson, the rhynchonelliforms Dalmanella cf. testudinaria (Dalman) and Paromalomena sp., the bivalve Modiolopsis?
Benedetto, Juan Luis Arnaldo, de la Puente, Graciela Susana, Halpern, Karen, Monaldi, Cesar Ruben   +3 more
core   +2 more sources

Between the Poles: Rethinking Global Patterns in Sea Anemone Biodiversity

Journal of Biogeography, Volume 52, Issue 8, August 2025.
ABSTRACT Aim To assess global sampling coverage of sea anemones and global species richness across four different spatial resolutions, and analyse these along latitudinal gradients to investigate true bimodality and the extent to which these patterns have been influenced by uneven sampling efforts. Location The study encompasses a global scale.
Charlotte Benedict, Michael Broe, Marymegan Daly, Maanas Nukala   +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

Braquiópodos del Banco de Chella (Mar de Alborán, Mediterráneo Occidental) [PDF]

, 1989
En el Banco de Chella (Mar de Alborán) se han identificado las siguientes especies de braquiópodos: Crania anomala (MÜLLER), Gryphus vitreus (BORN), Terebratulina retusa (LINNÉ), Megathiris detruncata (GMELIN), Megerlia truncata (LINNE) y Pantellaria ...
Llompart Díaz, Carme
core   +1 more source

Heat limits scale with metabolism in ectothermic animals

Journal of Animal Ecology, Volume 94, Issue 6, Page 1307-1316, June 2025.
We show that the extent to which ectotherms can increase their heat limits is strongly linked to how metabolic rate scales with temperature. This is a new perspective on what sets temperature limits in organisms, and will be important for understanding and predicting how different animals will respond to future warming.
Nicholas L. Payne, Jacinta D. Kong, Andrew L. Jackson, Amanda E. Bates, Simon A. Morley, James A. Smith, Jean‐Francois Arnoldi   +6 more
wiley   +1 more source

Linguloidean brachiopods from the Lower Ordovician (Tremadocian) of northwestern Argentina [PDF]

, 2015
The new obolid Torobolus subplanus gen. et sp. nov., from the lower Temadocian Devendeus Formation, the new species Libecoviella tilcarensis and Leptembolon argentinum, and Ectenoglossa sp.
Benedetto, Juan Luis Arnaldo, Muñoz, Diego Fernando   +1 more
core