Uncovering spatial patterns in the natural and human history of Brazil nut (Bertholletia excelsa ) across the Amazon Basin

2015 ◽  
Vol 42 (8) ◽  
pp. 1367-1382 ◽  
Author(s):  
Evert Thomas ◽  
Carolina Alcázar Caicedo ◽  
Crystal H. McMichael ◽  
Ronald Corvera ◽  
Judy Loo
Keyword(s):  
Spatial Patterns ◽  
Amazon Basin ◽  
Human History ◽  
Brazil Nut ◽  
Bertholletia Excelsa ◽  
History Of

Antarctica and Siegfried Kracauer’s Extraterrestrial Film Theory

2018 ◽  
Author(s):  
Jennifer Fay
Keyword(s):  
Film Theory ◽  
Media Theory ◽  
Human History ◽  
History Of ◽  
Human Purpose

`Siegfried Kracauer’s film and photographic theory along with cinematic records of early Antarctic exploration explain how this utterly inhospitable continent (Antarctica) and this media theory advance an alternative and denaturalized history of the present. Cinema has the capacity to reveal an earth outside of human feeling and utility without sacrificing the particularity that gets lost in scientific abstraction. And Antarctica, for so long outside of human history altogether, simply numbs feeling and refuses to yield to human purpose. It is also a continent on which celluloid encounters its signifying limits. Kracauer, this chapter argues, helps us to imagine an estranged and selfless relationship to an inhospitable or even posthospitable earth that may not accommodate us.

scholarly journals Corrigendum to “Accurate mapping of Brazil nut trees (Bertholletia excelsa) in Amazonian forests using WorldView-3 satellite images and convolutional neural networks”

2021 ◽  
pp. 101326
Author(s):  
Matheus Pinheiro Ferreira ◽  
Rodolfo Georjute Lotte ◽  
Francisco V. D’Elia ◽  
Christos Stamatopoulos ◽  
Do-Hyung Kim ◽  
...  
Keyword(s):  
Neural Networks ◽  
Convolutional Neural Networks ◽  
Satellite Images ◽  
Brazil Nut ◽  
Bertholletia Excelsa ◽  
Amazonian Forests

scholarly journals Amazonia as the Origin and Diversification Area of Didelphidae (Mammalia: Metatheria), and a Review of the Fossil Record of the Clade

2021 ◽  
Author(s):  
Mariela C. Castro ◽  
Murilo J. Dahur ◽  
Gabriel S. Ferreira
Keyword(s):  
South America ◽  
Amazon Basin ◽  
Parametric Models ◽  
Isthmus Of Panama ◽  
Biogeographic History ◽  
Early Diversification ◽  
Northern Portion ◽  
History Of ◽  
Environmental Events ◽  
Fossil Records

AbstractDidelphidae is the largest New World radiation of marsupials, and is mostly represented by arboreal, small- to medium-sized taxa that inhabit tropical and/or subtropical forests. The group originated and remained isolated in South America for millions of years, until the formation of the Isthmus of Panama. In this study, we present the first reconstruction of the biogeographic history of Didelphidae including all major clades, based on parametric models and stratified analyses over time. We also compiled all the pre-Quaternary fossil records of the group, and contrasted these data to our biogeographic inferences, as well as to major environmental events that occurred in the South American Cenozoic. Our results indicate the relevance of Amazonia in the early diversification of Didelphidae, including the divergence of the major clades traditionally ranked as subfamilies and tribes. Cladogeneses in other areas started in the late Miocene, an interval of intense shifts, especially in the northern portion of Andes and Amazon Basin. Occupation of other areas continued through the Pliocene, but few were only colonized in Quaternary times. The comparison between the biogeographic inference and the fossil records highlights some further steps towards better understanding the spatiotemporal evolution of the clade. Finally, our results stress that the early history of didelphids is obscured by the lack of Paleogene fossils, which are still to be unearthed from low-latitude deposits of South America.

scholarly journals Photosynthetic pigments and carbohydrates in young Brazil nut (Bertholletia excelsa H.B.K.) plants exposed to moderate and severe water deficiency

2016 ◽  
Vol 10 (07) ◽  
pp. 920-925 ◽  
Author(s):  
Paula Francyneth Nascimento Silva ◽  
◽  
Carla Leticia Figueredo de Carvalho Souza ◽  
Jose Rodrigo Mendes e Chagas ◽  
Gabriel Mascarenhas Maciel ◽  
...  
Keyword(s):  
Photosynthetic Pigments ◽  
Water Deficiency ◽  
Brazil Nut ◽  
Bertholletia Excelsa
Sign in / Sign up

Export Citation Format

Share Document