Results 71 to 80 of about 4,729 (161)

Continuous multi-criteria methods for crop and soil conservation planning on La Colacha (Río Cuarto, Province of Cordoba, Argentina) [PDF]

open access: yes, 2012
Agro-areas of Arroyos Menores (La Colacha) west and south of Rand south of R?o Cuarto (Prov. of Cordoba, Argentina) basins are very fertile but have high soil loses.
Aguado Cortijo, Pedro Luis   +7 more
core   +2 more sources

Cover crops affect pool specific soil organic carbon in cropland – A meta‐analysis

open access: yesEuropean Journal of Soil Science, Volume 75, Issue 2, March–April 2024.
Abstract Cover crops (CC) offer numerous benefits to agroecosystems, particularly in the realm of soil organic carbon (SOC) accrual and loss mitigation. However, uncertainties persist regarding the extent to which CCs, in co‐occurrence with environmental factors, influence SOC responses and associated C pools.
Julia Fohrafellner   +5 more
wiley   +1 more source

Accounting for molecular stochasticity in systematic revisions: species limits and phylogeny of Paroaria [PDF]

open access: yes, 2009
Different frameworks have been proposed for using molecular data in systematic revisions, but there is ongoing debate on their applicability, merits and shortcomings.
Ana L. Porzecanski, Liliana M. Dá
core   +2 more sources

Contrasting evidence of phylogenetic trophic niche conservatism in mammals worldwide [PDF]

open access: yes, 2017
Aim Phylogenetic niche conservatism (PNC), a pattern of closely related species retaining ancestral niche-related traits over evolutionary time, is well documented for abiotic (Grinellian) dimensions of the ecological niche.
Ackerly   +48 more
core   +1 more source

Heights, Nutrition, and Well-Being in Argentina, ca. 1850-1950. Preliminary Results [PDF]

open access: yes, 2007
Este ensayo presenta resultados de estimaciones de estaturas medias para diversas regiones de Argentina durante el período 1850-1950. Esta evidencia, tomada de registros de reclutas y prisioneros, es utilizada para cuestionar algunas de las ...
Salvatore, Ricardo D.
core   +3 more sources

Species richness and relative abundance of the native mammalian fauna in a relict of the Espinal ecorregion in the south of Santa Fe province (Argentina) [PDF]

open access: yes, 2013
En esta contribución se presenta la riqueza específica y abundancia relativa de mamíferos en un remanente de bosque xerófilo en la cuenca media del río Carcarañá (32° 582 S – 61°152 O), provincia de Santa Fe, Argentina.
Chimento, Nicolás Roberto   +2 more
core  

Politicas agrarias y estrategias campesinas en la Cuenca del Canete : anexos 8 a 13 [PDF]

open access: yes, 1988
Ce document réunit plusieurs diagnostics établis à partir d'observations de terrain sur la géographie physique, l'organisation sociale, les pratiques paysannes dans la vallée de Canete et la vallée Pampas afin de déterminer les facteurs limitants de la ...
Cavero E., L.   +5 more
core  

Exposure of free-ranging wild carnivores, horses and domestic dogs to Leptospira spp in the northern Pantanal, Brazil [PDF]

open access: yes, 2011
Leptospirosis is a zoonotic disease affecting most mammals and is distributed throughout the world. Several species of domestic and wild animals may act as reservoirs for this disease.
FERREIRA NETO, José Soares   +6 more
core   +3 more sources

Spartan Daily, March 21, 1958 [PDF]

open access: yes, 1956
Volume 45, Issue 95https://scholarworks.sjsu.edu/spartandaily/12587/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +5 more sources

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