Results 41 to 50 of about 89,781 (236)

Application of hydrologic tools and monitoring to support managed aquifer recharge decision making in the Upper San Pedro River, Arizona, USA

open access: yes, 2014
The San Pedro River originates in Sonora, Mexico, and flows north through Arizona, USA, to its confluence with the Gila River. The 92-km Upper San Pedro River is characterized by interrupted perennial flow, and serves as a vital wildlife corridor through
Laurel J. Lacher   +4 more
semanticscholar   +1 more source

Alucinaciones en circulación : una mirada a la interacción surandina tardía desde las tabletas y tubos de La Paya (Valle Calchaquí, Salta) [PDF]

open access: yes, 2010
Este trabajo presenta los resultados del estudio de las tabletas y tubos de inhalación de La Paya y otros sitios del valle Calchaquí y del análisis comparativo de esos artefactos con aquellos de otras regiones del Noroeste argentino y los Andes del Sur ...
Sprovieri, Marina
core  

Sensory Biology of the Franciscana (Pontoporia blainville, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

Development of a Shared Vision for Groundwater Management to Protect and Sustain Baseflows of the Upper San Pedro River, Arizona, USA

open access: yes, 2014
Groundwater pumping along portions of the binational San Pedro River has depleted aquifer storage that supports baseflow in the San Pedro River. A consortium of 23 agencies, business interests, and non-governmental organizations pooled their collective ...
H. Richter   +4 more
semanticscholar   +1 more source

Las sociedades Formativas de San Pedro de Atacama: Asentamiento, cronología y proceso

open access: yesEstudios Atacameños, 2011
Se analizan críticamente las aproximaciones que tradicionalmente han explicado el origen y desarrollo de las sociedades formativas en los oasis de San Pedro de Atacama, al mismo tiempo que se evalúa el proceso formativo local a partir del eje que ...
María Carolina Agüero Piwonka   +1 more
doaj   +2 more sources

Ceramic Production and Geodiversity in Iron Age Iberia: An Archaeometric Study of Pottery from Castrejón de Capote (SW Spain)

open access: yesArchaeometry, EarlyView.
ABSTRACT The hillfort of Castrejón de Capote is one of the best investigated settlements of Late Iron Age southwest Iberia. Located in the territory that the classical sources attributed to the Celtici, it was occupied between the early 4th and the 1st centuries bce.
Beatrijs de Groot   +2 more
wiley   +1 more source

Vegetation responses to climatic and geologic controls on water availability in southeastern Arizona

open access: yesEnvironmental Research Letters, 2021
Vegetation distribution, composition and health in arid regions are largely dependent on water availability controlled by climate, local topography and geology. Despite a general understanding of climatic and geologic drivers in plant communities, trends
Romy Sabathier   +4 more
doaj   +1 more source

Toward a global repository of insect traits (GRIT)

open access: yesInsect Conservation and Diversity, EarlyView.
Biodiversity loss is accelerating, yet insect conservation is hindered by the absence of a centralised, comprehensive trait database. We propose the GRIT, a FAIR, open‐access platform uniting datasets and collaborators worldwide. GRIT will harness advanced computational tools for trait acquisition and imputation, enabling large‐scale ecological ...
Pedro Cardoso   +37 more
wiley   +1 more source

The Temporal and Spatial Distribution of Catlinite and Redstone Pipes on Caddo Sites [PDF]

open access: yes, 2015
Catlinite and redstone pipes are widely distributed on post-A.D 1450 native American sites across eastern North America, including the Caddo area of the far Southeast.
Perttula, Timothy K.
core   +1 more source

All that Glitters: A Review of Payments for Watershed Services in Developing Countries [PDF]

open access: yes, 2008
This report reviews the current status of payments for watershed services in developing countries. It highlights the main trends in the evolution of these schemes, synthesising the available evidence on their environmental and social impacts, and drawing
Ina T. Porras   +2 more
core  

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