Results 41 to 50 of about 4,473,170 (269)

Knowledge and practice regarding eosinophilic gastrointestinal disorders other than eosinophilic esophagitis among pediatric gastroenterologists of the Latin American Society for Pediatric Gastroenterology, Hepatology, and Nutrition

open access: yesJPGN Reports, EarlyView.
Abstract Objective Evaluating clinical practices in the management of non‐esophageal eosinophilic gastrointestinal disorders (non‐EoE EGIDs) among pediatric gastroenterologists in Latin America. Methods A cross‐sectional descriptive study was conducted using a survey distributed via the REDCap platform.
Sofia Paz   +17 more
wiley   +1 more source

Is quinoa‐farming sustainable in marginal environments? Social, economical and environmental aspects

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Quinoa (Chenopodium quinoa Willd.) is an Andean grain crop introduced as a novel crop to many parts of the world in recent years. Recognized for nutritious seeds and high abiotic stress tolerance, it has been promoted as an element of climate‐resilient agriculture, particularly in marginal environments.
Anna Tabea Mengen   +5 more
wiley   +1 more source

Clasificación de humedales de montaña (Vegas) en los Andes Centrales de Argentina

open access: yesBoletín de la Sociedad Argentina de Botánica, 2022
Introducción y objetivos: El objetivo de este trabajo fue clasificar las vegas en los Andes Centrales entre los 28° y 53°S, con base en la geomorfología y la hidrología. Además, se buscó caracterizar las vegas del área de estudio en base a la superficie,
Marcela Ontivero   +2 more
doaj  

Aves y endemismo en los bosques relictos de la vertiente occidental andina del norte del Perú y sur del Ecuador

open access: yesRevista Peruana de Biología, 2013
Los bosques relictos de las vertientes occidentales de los Andes del norte del Perú y el sur del Ecuador forman parte de dos regiones, una la denominada región de endemismo tumbesina (caracterizada principalmente por bosques secos) y otra, en altitudes ...
Jeremy N. M. Flanagan   +2 more
doaj   +1 more source

Impact of Road Network Development on the Spatiotemporal Soil Erosion in the Three‐River Source Region

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT As a vital water conservation region in China, the Three River Source Region (TRSR) plays a critical role in safeguarding regional ecological security and ensuring the sustainable utilization of water resources. In this study, the Revised Universal Soil Loss Equation (RUSLE) was employed to quantify soil erosion in the study area across three ...
Fei Liu   +3 more
wiley   +1 more source

Portulaca abscondita (Portulacaceae, Caryophyllales), a new microendemic species from Monte Azul, Minas Gerais, Brazil

open access: yesNordic Journal of Botany, EarlyView.
Portulaca (Portulacaceae) is a cosmopolitan genus with centers of diversity in Africa and South America. In Brazil, 22 species are recognized, most occurring in xerophytic environments of the Cerrado, particularly in Campos Rupestres. These rocky montane habitats, especially in northern Minas Gerais state, remain undercollected despite their high ...
Danilo Alvarenga Zavatin   +7 more
wiley   +1 more source

El género Bromus en los Andes Centrales de Suramérica El género Bromus en los Andes Centrales de Suramérica

open access: yesCaldasia, 1986
A preliminary taxonomic revision of the brorne-grass species is found in Bolivia and Perú, with keys, drawings (mostly of type specimens), synonymies, descriptions and extensive specimen citations, 5 species are recognized: Bromus catharticus, B. lanatus,
Pinto Escobar Polidoro
doaj  

Sinningia pampeana sp. nov. (Gesneriaceae) from the Pampa's rocky outcrops in southern Brazil and Uruguay

open access: yesNordic Journal of Botany, EarlyView.
Sinningia pampeana is a new rupicolous species from the rocky outcrops of the Pampa biome in southern Brazil and Uruguay. Morphological analyses based on herbarium material, field observations, and detailed illustrations support its recognition as a distinct species from Sinningia sellovii.
Gabriel Emiliano Ferreira   +4 more
wiley   +1 more source

Efectos del cambio climático sobre especies de plantas vasculares del sur de los Andes Centrales: un estudio en el noroeste de Argentina (NOA)

open access: yesEcología Austral, 2016
La región de los Andes Tropicales es considerada como una región muy vulnerable al cambio climático porque presenta una alta diversidad y endemismo y porque posee una gran variabilidad altitudinal.
Ana C. Godoy-Burki
doaj   +1 more source

A plant–pollinator invasional meltdown: the Japanese pagoda tree Styphnolobium japonicum facilitates the invasion of the giant resin bee Megachile sculpturalis

open access: yesOikos, EarlyView.
An invasional meltdown can occur when a non‐native species facilitates the spread of another non‐native species in the invaded area, increasing its likelihood of survival or its ecological impact. Plant–pollinator systems pose an exceptional study system to test this concept, which remains poorly known.
Daniel Echeandía   +9 more
wiley   +1 more source

Home - About - Disclaimer - Privacy