Results 131 to 140 of about 90,255 (204)

Institutionalised Indigeneity, State Formation and Crisis: Lessons From the Indio Institucionalizado in Evo Morales' Bolivia

open access: yesBulletin 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

Tiempo de latencia para semen colectado de Colossoma macropomum “Gamitana” en solución sacarosa

open access: yesCiencia Amazónica (Iquitos), 2015
El objetivo fue estimar el tiempo de latencia (almacenamiento), para el semen de Colossoma macropomum, “gamitana” en solución de 400 mM de Sacarosa. Se consideró aceptable los niveles de motilidad superiores al 40%, lo cual garantiza eficientes tasas de ...
Ehrlich Llasaca-Calizaya   +3 more
doaj  

Height and phytotelm size affect the invertebrate communities of epiphytic bromeliads in the Amazon rainforest

open access: yesEcological Entomology, Volume 51, Issue 2, Page 221-234, April 2026.
The height at which epiphytic bromeliads are found affects the invertebrate community composition within them. The size of epiphytic bromeliads is positively correlated with species richness of both aquatic and terrestrial invertebrates. Whether bromeliads were found in primary or secondary forest did not have a significant effect on the community of ...
Xaali O'Reilly‐Berkeley   +6 more
wiley   +1 more source

Abiotic drivers of co‐occurrence and diversity patterns of Calopterygidae species in Amazonian protected freshwaters

open access: yesEcological Entomology, Volume 51, Issue 2, Page 235-249, April 2026.
Species co‐occurrences rely on their ability to explore similar or distinct available resources, and possible niche overlap can prevent their presence and establishment in a given site Damselflies of the Calopterygidae family demonstrated negative co‐occurrences in streams inside and outside PAs, highlighting that their ecological similarity is ...
Joás Silva Brito   +13 more
wiley   +1 more source

Author Correction: Healthy forests safeguard traditional wild meat food systems in Amazonia. [PDF]

open access: yesNature
Antunes AP   +57 more
europepmc   +1 more source

Stable isotope data indicate origins of mislabelled historical bird specimens

open access: yesIbis, Volume 168, Issue 2, Page 779-784, April 2026.
Natural history specimens provide valuable insights across diverse research fields, but those needing more accurate metadata have limited scientific value. We applied stable isotope analysis to investigate the origin of 19th century Atlantic Forest bird specimens attributed to the northeastern Brazilian state of Pernambuco, which are the only records ...
Rafael Dantas Lima   +4 more
wiley   +1 more source

Assessing fish diversity in small streams and ponds of the Peruvian Amazon using environmental DNA metabarcoding. [PDF]

open access: yesZookeys
Estivals G   +6 more
europepmc   +1 more source

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

open access: yesIbis, Volume 168, Issue 2, Page 571-587, April 2026.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga   +14 more
wiley   +1 more source

Family imprint reveals basin-wide patterns of Amazon forest embolism resistance. [PDF]

open access: yesNat Commun
Tavares JV   +94 more
europepmc   +1 more source

Not everyone is shrinking: increases in body mass and wing length in a Sand Martin (Riparia riparia) population in northwestern Italy over two decades

open access: yesIbis, Volume 168, Issue 2, Page 674-686, April 2026.
In recent decades, vertebrates, particularly birds, have exhibited notable morphological changes in response to climate change. In birds, these temporal trends usually entail a decrease in body mass and an increase in wing length, sometimes interpreted as a compensatory strategy to maintain migration.
Giulia Masoero, Alberto Tamietti
wiley   +1 more source

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