Results 141 to 150 of about 154,855 (300)
Wage labour: Modes of territorial adjustment of work groups and livestock farming activities. Illustration in Brazilian Amazonia and comparison with other regions of the world [PDF]
, 2008 Wage labour is important in livestock farming in Amazonia, as in other regions. It is increasing, and agricultural production systems that were hitherto family-based are increasingly turning to it.
Alves, Ailce Margarida +7 more
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CICLO REPRODUCTIVO Y DINÁMICA FOLICULAR EN GANADO Bos indicus
Revista de la Facultad de Ciencias Agropecuarias, 2019 El ciclo estral es el conjunto de acontecimientos fisiológicos que se producen en el ovario, a intervalos de tiempo cíclicos, como consecuencia de las variaciones en los niveles hormonales. Se han realizado varios trabajos tanto en ganado Bos taurus como
Andres Felipe Valencia Hernández +2 more
doaj
Revista de la Facultad de Ciencias Agropecuarias, 2019 Los efectos ambientales negativos, producto del elevado uso antrópico de combustibles fósiles además de otros inadecuados usos del suelo, han sido identificados por expertos desde hace ya varios cientos de años; sin embargo, las estrategias ...
Dairo García Moreno +2 more
doaj
Past and current policy issues concerning tropical deforestation in Brazil [PDF]
This paper discusses past and current policies concerning tropical deforestation in Brazil. In the last few years, the Brazilian government has reviewed and changed many aspects of past policies that encouraged deforestation of the Brazilian Amazon ...
Motta, Ronaldo Serôa da
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The Depositional Record, Volume 12, Issue 2, April 2026.During the Late Permian, the rise of the Gondwanides Belt trapped marine waters, giving birth to a vast megalake. This lake shifted between overfilled, balanced‐fill and underfilled stages that are recorded by high‐frequency accommodation changes, while meteorological seiches shaped the sedimentary dynamic and produced heterolithic beds.
B. Christofoletti +6 more
wiley +1 more source
Geoscience Data Journal, Volume 13, Issue 2, April 2026.The first openly accessible 2 m‐resolution lidar‐based DTM and an extensive set of land‐surface parameters (LSPs) for the region of São Sebastião and Ilhabela, southeastern Brazil, reveal geomorphological features previously indiscernible, including past landslide deposits, drainage captures and structural lineaments.
Rebeca Durço Coelho +3 more
wiley +1 more source
Ecological studies of the aquatic soil invertebrates in three inundation forests of Central Amazonia
, 1975 From January 1971 till August 1972 ecological studies were carried out on the aquatic macroinvertebrates of the benthos community of three Central-Amazonian inundation forests.
Irmler, U.
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TAXON, Volume 75, Issue 2, April 2026.Abstract Discordance among gene trees, including discrepancies with the species tree, is increasingly reported in analyses of phylogenomic data. Such discordance can result from technical issues such as misalignment, paralogy, or model misfit, or from biological processes such as incomplete lineage sorting (ILS), hybridization with introgression, or ...
Juan David Tovar +6 more
wiley +1 more source
Bulletin of Latin American Research, Volume 45, Issue 2, April 2026.ABSTRACT This article examines the institutionalisation of indigeneity in Bolivia under the governments of Evo Morales (2006–2019) as a central component of the MAS project of crafting state hegemony. We trace the emergence of what we call the indio institucionalizado from the social mobilisations of the 1990s and 2000s through the Constitutional ...
Aiko Ikemura Amaral, Angus McNelly
wiley +1 more source
Assessing fish diversity in small streams and ponds of the Peruvian Amazon using environmental DNA metabarcoding. [PDF]
ZookeysEstivals G +6 more
europepmc +1 more source