Reproductive colonization of land by frogs: Embryos and larvae excrete urea to avoid ammonia toxicity. [PDF]
Frogs have evolved terrestrial eggs many times, offering an excellent opportunity to assess traits that may facilitate aquatic‐to‐terrestrial transitions. Our results suggest the importance of physiological adaptations and physiological plasticity during early life stages, specifically the early onset of urea excretion, its upregulation under dry ...
Méndez-Narváez J, Warkentin KM.
europepmc +2 more sources
DNA Barcode Reference Library for European Ants: A Roadmap for Phylogeography and Species Discovery. [PDF]
ABSTRACT DNA barcode reference libraries provide useful tools for specimen identification, highlighting potential new species and detecting introduced ones. Here, we present a comprehensive DNA barcode library for European ants and, in order to tackle the Linnean, Wallacean and Darwinian shortfalls of this group, we provide an updated checklist ...
Menchetti M +27 more
europepmc +2 more sources
Assessment of genetically modified maize MON 89034 × 1507 × MON 88017 × 59122 and 8 out of 10 of its subcombinations for renewal authorisation under Regulation (EC) No 1829/2003 (dossier GMFF-2022-9170). [PDF]
Abstract Following the joint submission of dossier GMFF‐2022‐9170 under Regulation (EC) No 1829/2003 from Bayer Agriculture B.V. and Corteva Agriscience Belgium B.V., the Panel on genetically modified organisms of the European Food Safety Authority was asked to deliver a scientific risk assessment on the data submitted in the context of the renewal of ...
EFSA Panel on Genetically Modified Organisms (GMO) +21 more
europepmc +2 more sources
Strong scale-dependent relationships between fine-root function and soil properties uncovered with spatially coupled sampling. [PDF]
Summary Substantial fine‐root trait variation is found at fine spatial scales but rarely linked to edaphic variation. We assessed the spatial scales of variation in fine‐root traits and adjacent soils using a spatially coupled, nested sampling scheme along a fertility gradient in a seasonally dry tropical forest tree, Handroanthus ochraceus.
Dallstream C +3 more
europepmc +2 more sources
O presente estudo tem por objetivo descrever os processos de assimilação do amônio e nitrato através de ajustes cinéticos de assimilação em função de concentrações preestabelecidas.
Cacilda Thais Janson Mercante +1 more
doaj +2 more sources
RESUMO: A urolitíase é uma doença importante de cordeiros confinados. A acidificação da urina, pela ingestão de cloreto de amônio, é o método preventivo mais frequentemente empregado.
Danilo O.L. Ferreira +6 more
doaj +2 more sources
Características químicas do solo influenciadas pela adição de água residuária da suinocultura
Resumo Através do presente trabalho objetivou-se estudar os efeitos da aplicação de água residuária da suinocultura (ARS) sobre algumas características químicas de um Latossolo e avaliar a variação das formas de nitrato e amônio em relação ao nitrogênio ...
Flávia M. Barros +4 more
doaj +1 more source
Cuerpos de cobre: Extractivismo en Chuquicamata, Chile
Resumen ¿Qué extraen y qué producen los extractivismos? El presente artículo intenta responder a esta pregunta analizando críticamente, la relación entre cuerpos, trabajo y mi‐nería principalmente bajo el modelo neoliberal chileno, en la mina estatal de cobre a tajo abierto más grande del planeta: Chuquicamata.
Marina Weinberg
wiley +1 more source
Frugivory underpins the nitrogen cycle
A free Plain Language Summary can be found within the Supporting Information of this article. Abstract Tropical rainforests are populated by large frugivores that feed upon fruit‐producing woody species, yet their role in regulating the cycle of globally important biogeochemical elements such as nitrogen is still unknown.
Nacho Villar +7 more
wiley +1 more source
Estoque de carbono e nitrogênio e formas de nitrogênio mineral em um solo submetido a diferentes sistemas de manejo [PDF]
O objetivo deste trabalho foi verificar alterações nos teores e no estoque de C orgânico e N total do solo, e nas suas formas nítrica e amoniacal, em sistemas de manejo implementados em área de cerrado nativo.
Alexandre Fonseca d'Andréa +3 more
doaj +1 more source

