Results 51 to 60 of about 806,976 (230)

Primer Frenguelliidae (Insecta: Odonata) del Eoceno de Río Pichileufú, Patagonia, Argentina [PDF]

open access: yes, 2017
Se describe un nuevo género, Treintamilun gen. nov., basado en Treintamilun vuelvenlucha sp. nov. de la localidad de Río Pichileufú (Luteciano), Provincia de Río Negro, Patagonia, Argentina. El nuevo género se asigna a Frenguelliidae.
Petrulevicius, Julian Fernando
core  

Effects of the onion residue compost as an organic fertilizer in a vegetable culture in the Lower Valley of the Rio Negro

open access: yesInternational Journal of Recycling of Organic Waste in Agriculture, 2017
PurposeFarming production in the lower part of Río Negro Valley (Argentina) has increased considerably during recent years, causing soil degradation and, specifically, decreasing the organic matter contents.
G. Pellejero   +4 more
semanticscholar   +1 more source

Two new records for the flora of Paraguay: Stemodia diplohyptoides and S. lobelioides (Plantaginaceae:Gratioleae)

open access: yesNordic Journal of Botany, EarlyView.
Stemodia diplohyptoides M.M.Sosa & Dematt. and S. lobelioides Lehm. (Gratioleae, Plantaginaceae) are reported for the first time in Paraguay, found in Alto Paraná and Presidente Hayes departments, respectively. These new records extend the known geographical range of both species, representing the northern records to date, S.
Y. Carlés Bechara   +4 more
wiley   +1 more source

Transhumanism and human enhancement: A postmortem [PDF]

open access: yes, 2015
Fil: Vaccari, Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Macquarie University; Australia. Universidad Nacional de Río Negro. Sede Andina.
Vaccari, Andrés
core   +1 more source

Connecting tradition and technology: The digitization of the ethnobotanical collection at the Rio de Janeiro Botanical Garden

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The digitization of RBetno (JBRJ) represents a step forward for biodiversity conservation in Brazil. Aligned with the Kunming‐Montreal Global Biodiversity Framework (Target 2, 2020–2030), this project documents the use of plants, including traditional knowledge and vernacular names, with a focus on the Atlantic Forest and Amazon.
Viviane S. Fonseca‐Kruel   +6 more
wiley   +1 more source

Assessing Eco‐Efficiency in Municipal Solid Waste Management Integrating Heterogeneity: A Latent Class Stochastic Frontier Analysis

open access: yesSustainable Development, EarlyView.
ABSTRACT The measurement of eco‐efficiency in the municipal solid waste (MSW) sector has garnered significant attention due to the substantial environmental impacts of unsustainable MSW management and the high operational costs associated with public service provision.
Ramon Sala‐Garrido   +2 more
wiley   +1 more source

Lethal Temperatures of a Neotropical Fish Relic in Patagonia, the Scale-Less Characinid Gymnocharacinus-Bergi [PDF]

open access: yes, 1997
Fil: Ortubay, Silvia G.. Dirección de Pesca. Ministerio de Economía de la Provincia de Río Negro; ArgentinaFil: Gómez, Sergio E.. Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA). Facultad de Ciencias Naturales y Museo.
Cussac, Víctor E.   +2 more
core  

Taxonomic studies of the genus Phymaturus (IGUANIA: LIOLAEMIDAE): Description of four new species. [PDF]

open access: yes, 2010
After the study of a diverse collection of Phymaturus from three Argentinian institutions and additional samples collected in the last two years we discovered several populations of uncertain taxonomic status.
Abdala, Cristian Simón   +2 more
core   +1 more source

The Importance of Environmental Heterogeneity in Evaluating the Conservation Status of Two Frog Species in a Changing Amazonian Interfluve

open access: yesAnimal Conservation, EarlyView.
Identifying the most effective criterion to assess the conservation status of vulnerable species in threatened tropical regions is crucial to evaluate recovery plans. We investigated the influence of environmental heterogeneity on the extent of occurrence (EOO), area of occupied habitat (AOH), and density variation of two Amazonian riparian frog ...
Rafael F. Jorge   +3 more
wiley   +1 more source

Unravelling Stock Spatial Structure of Silverside Odontesthes argentinensis (Valenciennes, 1835) from the North Argentinian Coast by Otoliths Shape Analysis

open access: yesFishes, 2022
The marine silverside (Odontesthes argentinensis) is an euryhaline species, distributed along the southwest coast of the Atlantic Ocean, present in estuaries, brackish coastal lagoons and shallow marine waters.
Santiago Morawicki   +2 more
doaj   +1 more source

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