Results 41 to 50 of about 5,246 (159)

Evaluación del avance de recuperación de un relicto de bosque de planicie inundable y no inundable mediante la caracterización de la composición y estructural vegetal

open access: yesLuna Azul, 2020
El objetivo de este estudio es de evaluar los cambios en la composición florística del Bosque Las Mercedes después de siete años de implementación de un proyecto de restauración ecológica. Materiales y métodos: se establecieron 14 parcelas permanentes de 50 m x 20 m en las que se registraron todos los individuos vegetales con un DAP ≥ 2 cm.
openaire   +1 more source

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead   +6 more
wiley   +1 more source

Analysis of the erosion- sedimentation processes the Cravo Norte river section – Arauca, through remote sensing [PDF]

open access: yes, 2017
21 páginas : imágenes, tablas.El río Cravo Norte es un canal de carácter meandriforme ubicado en la planicie aluvial de los Llanos Orientales, topografía que facilita la divagación natural del cauce, provocando su migración y cambio en los parámetros ...
Canchón Acuña, Duney Marcela
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Phylogenomic approach to integrative taxonomy resolves a century‐old taxonomic puzzle and the evolutionary history of the Acromyrmex octospinosus species complex

open access: yesSystematic Entomology, Volume 50, Issue 3, Page 469-494, July 2025.
A comprehensive, integrative study approach combining morphology, population genetics, phylogenetics and biogeography revealed that the Acromyrmex octospinosus species complex consists of two species: A. octospinosus and its social parasite A. insinuator.
Daniela Mera‐Rodríguez   +2 more
wiley   +1 more source

Infiltraciones: regenerando el ecosistema [PDF]

open access: yes, 2013
Reactivar paisajes La Plana de Utiel y la Hoya de Buñol-Chiva. Ámbito 4: Embalse de Forata, Yátova.
Alagna Ugaz, Melisa
core   +1 more source

Climate‐related drivers of migratory bird health in the south‐central USA

open access: yesBiological Reviews, Volume 100, Issue 3, Page 1272-1293, June 2025.
ABSTRACT Migratory birds are species of concern that play important ecological roles while also supporting recreational opportunities for the hunting and birdwatching public. Direct and indirect effects of climate variability, extremes, and change on migratory bird health manifest at the individual, population, species, and community levels.
Renee A. McPherson   +2 more
wiley   +1 more source

Initial assessment of the peatlands of the upper-Ucayali Valley, Central Peruvian Amazon: Basic analysis of geographic products & predictors

open access: yesGlobal Ecology and Conservation
We present an assessment of the tropical peatlands in the upper-Ucayali Valley in central Peru—an Amazonian region that has been largely ignored in ecological and wetlands research.
Brian Crnobrna   +4 more
doaj   +1 more source

Estructuración de un manual de procedimientos para la atención al público del parque histórico Guayaquil [PDF]

open access: yes, 2011
El presente documento expone de manera detallada una modalidad para el desarrollo de las actividades en el área de la atención al público de Parque Histórico Guayaquil. Basándose en un estudio de diagnóstico y la experiencia adquirida como guía de museo,
Córdova Herrera, Juan   +1 more
core   +1 more source

Accelerated Organic Carbon Burial Rates Reconstructed in Elephant Butte Reservoir, New Mexico During a Megadrought

open access: yesWater Resources Research, Volume 61, Issue 3, March 2025.
Abstract Artificial lakes (reservoirs) accumulate sediment and organic carbon (OC) over time. We investigated sedimentation processes in a dryland reservoir and informed OC burial and potential preservation. Our study site, Elephant Butte Reservoir on the Rio Grande, New Mexico, USA receives inflows from sediment‐laden, monsoon‐driven flash floods ...
A. C. Eckland   +3 more
wiley   +1 more source

Entre el orden y el caos: invasiones con dinámicas no lineales de sauces y álamos en el norte de la Patagonia [PDF]

open access: yes, 2016
¿Cómo es la dinámica de un paisaje ribereño, cuyos componentes no comparten una historia evolutiva común? Proponemosel estudio de las invasiones de salicáceas exóticas en los valles de los ríos Limay y Azul sobre la base de modelosmatemáticos.
Datri, Leonardo Ariel   +2 more
core  

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