Results 131 to 140 of about 1,490,509 (200)

Helosis (Balanophoraceae) en Argentina Helosis (Balanophoraceae) in Argentina

open access: yesBoletín de la Sociedad Argentina de Botánica, 2006
Se cita por primera vez para Argentina Helosis cayennensis (Swartz) Sprengel var. cayennensis en base a colecciones hechas por los autores en la Isla argentina de Apipé Grande, Ituzaingó, provincia de Corrientes.
José Luis Fontana   +1 more
doaj  

Pobreza y desigualdad por ingresos en la Argentina urbana 2010-2016

open access: yes, 2017
A partir del año 2016, el INDEC ha reanudado la tarea de estimar las tasas de indigencia y de pobreza a nivel urbano (entre otros indicadores económicos y sociales).
Salvia, Agustín (coord.)
core  

Opportunities and Alliances: The Relational Dynamics of Criminal Collusion in Latin America

open access: yesThe British Journal of Sociology, EarlyView.
ABSTRACT Based on ethnographic fieldwork in Mexico and judicial wiretap analysis in Argentina, this paper shows that collusion between state actors and violent non‐state actors operates through fluid and competitive relational networks rather than stable hierarchies or fixed institutional arrangements.
Eldad J. Levy, Javier Auyero
wiley   +1 more source

Coccocypselum pulchellum (Rubiaceae, nuevo registro para Argentina

open access: yesDarwiniana, 2007
Se cita Coccocypselum pulchellum por primera vez para Argentina, en Predio Guaraní, Misiones. Esta es la tercera especie de Coccocypselum registrada para la flora de Argentina junto con C. hasslerianum y C. lanceolatum.
Elsa L. Cabral, Roberto M. Salas
doaj  

Self‐Description and the Agro‐Industry's Response to Environmental Crises

open access: yesThe British Journal of Sociology, EarlyView.
ABSTRACT This article explores how self‐descriptions can orient organisations towards trajectories that sustain activities that contribute to environmental crises while simultaneously acknowledging both the crises themselves and the need for transformative responses.
Sharon Kishik, Morten Knudsen
wiley   +1 more source

Diastatea (Campanulaceae, Lobelioideae), nuevo género para la flora argentina

open access: yes, 2017
El género Diastatea (Campanulaceae, Lobeliodeae) se registra por primera vez para la flora argentina en ambientes antropizados de la Provincia Fitogeográfica de las Yungas (Jujuy) entre los 1.100 y 2.000 m s.m. Se describe e ilustra D.
Slanis, Alberto C.   +2 more
core  

Pushing the Boundaries: Studies on Consumers and Food Demand in the Journal of Agricultural Economics

open access: yesJournal of Agricultural Economics, EarlyView.
ABSTRACT We summarize the development of consumer economics and food demand in the Journal of Agricultural Economics over the past 100 years. Even from an early stage, the role of marketing agricultural products in a thriving agricultural sector was recognized within the works published in the Journal.
Jill E. Hobbs, Jutta Roosen
wiley   +1 more source

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

open access: yesInsect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn   +8 more
wiley   +1 more source

“Alien versus predator”: predatory effect of coccinellid Exochomus quadripustulatus on the scale insect Toumeyella parvicornis. An open‐field experimentation on the Pinus pinea of Rome

open access: yesInsect Science, EarlyView.
The release of gravid Exochomus quadripustulatus females proved to be effective in containing Toumeyella parvicornis infestations on stone pine trees, under open‐field condition. The ladybugs caused a lower infestation level compared to the trees that did not receive any ladybugs during the observation season.
Nicolò Di Sora   +4 more
wiley   +1 more source

Body Size Regulates Niche Overlap Asymmetry in the Subtropical Andes Rain Shadow: Isotopic Paleoecology of Oligocene South American Ungulates

open access: yesIntegrative Zoology, EarlyView.
This study provides the first isotopic analysis of Oligocene mammals from Quebrada Fiera, Mendoza, Argentina, filling a major gap in South American paleontology. It reveals a latitudinal gradient in aridity due to the Andean rain shadow and highlights the role of (semi)permanent water bodies in sustaining diverse herbivore communities. Additionally, it
Dánae Sanz‐Pérez   +4 more
wiley   +1 more source

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