Results 51 to 60 of about 2,928 (231)

Vulnerability of the biota in riverine and seasonally flooded habitats to damming of Amazonian rivers

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 31, Issue 5, Page 1136-1149, May 2021., 2021
Abstract The extent and intensity of impacts of multiple new dams in the Amazon basin on specific biological groups are potentially large, but still uncertain and need to be better understood. It is known that river disruption and regulation by dams may affect sediment supplies, river channel migration, floodplain dynamics, and, as a major adverse ...
Edgardo M. Latrubesse   +8 more
wiley   +1 more source

A Review of Parathyroid Surgery for Primary Hyperparathyroidism from the United Kingdom Registry of Endocrine and Thyroid Surgery (UKRETS)

open access: yesWorld Journal of Surgery, Volume 45, Issue 3, Page 782-789, March 2021., 2021
Abstract Background The United Kingdom Registry of Endocrine and Thyroid Surgeons is a national database holding details on > 28,000 parathyroidectomies. Methods An extract (2004–2017) of the database was analysed to investigate the reported efficacy, safety and use of intra‐operative surgical adjuncts in targeted parathyroidectomy (tPTx) and bilateral
H. Ishii   +4 more
wiley   +1 more source

Amazonian Erasures: Landscape and Myth-making in Lowland Bolivia

open access: yesRural Landscapes: Society Environment History, 2018
Radical land-use changes are under way in Bolivia’s Beni Department. As a prelude to changes, tales of idle land and premodern peoples have emerged, resembling the Pristine Myth that accompanied the ‘discovery’ of the Americas. In this article, I revisit
Lisbet Christoffersen
doaj   +1 more source

Geographical Knowledge, Alterity Tensions and Martyrology’s Theatres in Jesuitical Cartographies of the New World [PDF]

open access: yes, 2015
A partir de una obra jesuítica sobre la región de mojos, en este trabajo me propongo analizar la forma en que las cartografías jesuíticas del siglo XVIII incorporaron algunas de las prácticas y de los tropos de las representaciones geográficas de los ...
Salamanca Villamizar, Carlos Arturo
core   +1 more source

En el pueblo de Santa María Magdalena en 21 de febrero de 1773: Informe del Gobernador de Moxos León Gonzales de Velasco

open access: yes, 2020
espanolEn febrero de 1773 el gobernador de Moxos, Leon Gonzalez de Velasco, visito la reduccion de Santa Maria Magdalena en el distrito de Baures. Durante su estadia en dicha poblacion, verifico su situacion economica, hizo una breve historia del pueblo,
Jesús Guillermo Nogales Carvalho
semanticscholar   +1 more source

Climate change and cultural resilience in late pre-Columbian Amazonia [PDF]

open access: yes, 2019
The long term response of ancient societies to climate change has been a matter of global debate. Until recently, the lack of integrative studies between archaeological, palaeoecological, and palaeoclimatological data had prevented an evaluation of the ...
Alves, Daiana T.   +16 more
core   +5 more sources

Short communication: Estimating radiocarbon reservoir effects in Bolivian Amazon freshwater lakes [PDF]

open access: yesGeochronology
The Llanos de Moxos, in the Bolivian Amazon, preserves a remarkable archaeological record, featuring thousands of forest islands. These anthropogenic sites emerged as a result of activities of the earliest inhabitants of Amazonia during the Early and ...
A. García-Escárzaga   +13 more
doaj   +1 more source

Pre-Columbian land use in the ring-ditch region of the Bolivian Amazon [PDF]

open access: yes, 2015
The nature and extent of pre-Columbian (pre-1492 AD) human impact in Amazonia is a contentious issue. The Bolivian Amazon has yielded some of the most impressive evidence for large and complex pre-Columbian societies in the Amazon basin, yet there ...
Alcina Franch J   +31 more
core   +1 more source

An improved methodology for the recovery of Zea mays and other large crop pollen, with implications for environmental archaeology in the Neotropics [PDF]

open access: yes, 2012
We present a simple sieving methodology to aid the recovery of large cultigen pollen grains, such as maize (Zea mays L.), manioc (Manihot esculenta Crantz), and sweet potato (Ipomoea batatas L.), among others, for the detection of food production using ...
Bennett KD   +21 more
core   +1 more source

Pre-Columbian ring ditch construction and land use on a “chocolate forest island” in the Bolivian Amazon [PDF]

open access: yes, 2015
We present a palaeoecological investigation of pre-Columbian land use in the savannah “forest island” landscape of north-east Bolivian Amazonia. A 5700 year sediment core from La Luna Lake, located adjacent to the La Luna forest island site, was analysed
Carson, John F.   +4 more
core   +2 more sources

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