Results 71 to 80 of about 6,056 (182)

Nematofauna of red piranha Pygocentrus nattereri (Kner, 1958) (Characiformes: Serrasalmidae) from Amazonia, Brazil

Revista Brasileira de Parasitologia Veterinária
Between March and October 2008, 355 specimens of Pygocentrus nattereri were collected from the lowland lakes of Central Amazonia, Brazil, to study their nematode fauna.
Aprígio Mota Morais, Melissa Querido Cárdenas, José Celso de Oliveira Malta   +2 more
doaj   +1 more source

A new species of Pristimantis (Anura: Strabomantidae) from white-sand forests of central Amazonia, Brazil. [PDF]

PeerJ, 2023
Mônico AT, Ferrão M, Moravec J, Fouquet A, Lima AP.   +4 more
europepmc   +1 more source

Hidden Losses: Assessing the Risk of Coextinction Among Ectoparasitic Flies and Their Bat Host Species in Brazil

Animal Conservation, EarlyView.
The potential impact of bat species extinction on the number of their ectoparasitic fly species, based on interaction data for Brazil. As bat host species are removed over time, more connected species (green) would experience steeper declines and lead to greater ectoparasite losses when compared to a random extinction model (gray).
Nathan Lorenzo de Sena Gotti, Jonathan Ramos Ribeiro, Eder Barbier, Enrico Bernard   +3 more
wiley   +1 more source

Determinação de Regiões Homogêneas do Índice de Precipitação Normalizada (SPI) na Amazônia Oriental

Revista Brasileira de Meteorologia
Resumo O presente estudo objetiva determinar Regiões homogêneas do SPI-6 na Amazônia Oriental e analisar as principais características dos eventos secos e chuvosos em cada região.
Sergio Rodrigo Quadros dos Santos, Célia Campos Braga, Clovis Angeli Sansigolo, Ana Paula Paes dos Santos   +3 more
doaj   +1 more source

PEDO-TRANSFER FUNCTIONS FOR ESTIMATING SOIL BULK DENSITY IN CENTRAL AMAZONIA

Revista Brasileira de Ciência do Solo, 2015
Under field conditions in the Amazon forest, soil bulk density is difficult to measure. Rigorous methodological criteria must be applied to obtain reliable inventories of C stocks and soil nutrients, making this process expensive and sometimes unfeasible.
Henrique Seixas Barros, Philip Martin Fearnside   +1 more
doaj   +1 more source

Seasonal flooding decreases fruit-feeding butterfly species dominance and increases spatial turnover in floodplain forests of central Amazonia. [PDF]

Ecol Evol, 2023
Oliveira IF, Baccaro FB, Werneck FP, Haugaasen T.   +3 more
europepmc   +1 more source

Understanding Mammalian Habitat Use With a Multi‐Species, Multi‐Scale Approach: The Jaguar Protection Corridor in Guaviare, Colombia

Animal Conservation, EarlyView.
We applied a multi‐scale, multi‐species framework to quantify how landscape structure and human infrastructure influence habitat use across a terrestrial mammal community within a biological corridor in the Colombian Amazon. Forest cover and spatial configuration influenced wildlife habitat use at spatial scales associated with species dispersal ...
Gabriel P. Andrade‐Ponce, Eduardo Molina‐González, Jaime Andrés Cabrera   +2 more
wiley   +1 more source

OSL age determinations of Pleistocene fluvial deposits in Central Amazonia

Anais da Academia Brasileira de Ciências, 2010
Absolute dating methods have been used in chronological studies of geological processes and sedimentary units of Quaternary age in Central Amazonia, Brazil. Although radiocarbon dating has been very useful in archaeological research and soil studies, the
Emílio A.A. Soares, Sonia H. Tatumi, Claudio Riccomini   +2 more
doaj   +1 more source

Muralismo como encargo participativo: Holografía de lo (in)visible en comunidades a’i cofán de la selva colombiana

Anthropology of Consciousness, EarlyView.
ABSTRACT When mural art in indigenous communities is commissioned as a participatory project, several methodological, epistemological, and aesthetic questions arise. This text proposes a horizontal and investigative approach to what we can simply call ‘muralism in the A'i Cofán community context,’ not as significant works executed in communities, but ...
Daniel Alberto Restrepo Hernández, Andrés Rojas Guarín, Alexander Queta Criollo   +2 more
wiley   +1 more source

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

Acta Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source