brazilian amazon
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2022 ◽  
Vol 43 (2) ◽  
pp. 797-808
Author(s):  
Ana Paula Magno do Amaral ◽  
◽  
Flávio Henrique Santos Rodrigues ◽  
Camila Serrão Souza Lima de Deus ◽  
André Luiz da Silva Athaide ◽  
...  

Automeris liberia Cramer are found in South America, with documented sightings in Ecuador, Peru, some regions of Mexico and, more recently, the Brazilian Amazon. These moths cause damage to several plant species. We designed an experiment to study the biology and morphometry of A. liberia in the laboratory and provide information for the management of the pest in oil palm cultivation in the Brazilian Amazon. Caterpillars for rearing were collected from commercial areas of oil palm cultivation, where they cause defoliation of the plant. They were fed a natural diet of oil palm leaves of the Tenera variety and observed from second generation onwards. Sex, behavior, posture, mass, body length, wingspan, body diameter, sex ratio, average growth ratio, and antenna were quantified. The embryonic stage lasted 14 days, followed by seven larval instar stages over 36 days. The pupal stage lasted 21 days. Adults had a longevity of 4.5 and 6 days and a total biological cycle of 78.5 and 80 days, for males and females, respectively. The growth ratio was 1.49. The antennae showed sexual dimorphism, with bipectinate morphology in males and filiform in females. In the adult stage, morphological variables were evaluated (body length, thoracic diameter, wingspan, forewing length, forewing height, hindwing length, hindwing height, antenna length, number of antennomeres, and body mass), and they showed significant differences between males and females (Newman-Keuls test, P < 0.05).


2023 ◽  
Vol 83 ◽  
Author(s):  
B. E. Andrade-Silva ◽  
G. S. Costa ◽  
A. Maldonado Júnior

Abstract A new species of nematode parasite of the subfamily Pudicinae (Heligmosomoidea: Heligmonellidae) is described from the small intestine of Proechimys simonsi (Rodentia: Echimyidae) from the locality of Nova Cintra in the municpality of Rodrigues Alves, Acre state, Brazil. The genus Pudica includes 15 species parasites of Neotropical rodents of the families Caviidae, Ctenomyidae, Dasyproctidae, Echimyidae, Erethizontidae, and Myocastoridae. Four species of this nematode were found parasitizing three different species rodents of the genus Proechimys in the Amazon biome. Pudica wandiquei n. sp. can be differentiated from all other Pudica species by the distance between the ends of rays 6 and 8 and the 1-3-1 pattern of the caudal bursa in both lobes.


2022 ◽  
Vol 129 ◽  
pp. 19-36
Author(s):  
Ana C. Rorato ◽  
Maria Isabel S. Escada ◽  
Gilberto Camara ◽  
Michelle C.A. Picoli ◽  
Judith A. Verstegen

2023 ◽  
Vol 83 ◽  
Author(s):  
L. F. Balbino ◽  
A Alves Filho ◽  
B. E. S. Farias ◽  
G. V. Costa ◽  
G. H. Sinhorin ◽  
...  

2022 ◽  
Vol 151 ◽  
pp. 105722
Author(s):  
Rudi Rocha ◽  
André Albuquerque Sant’Anna

2022 ◽  
Vol 28 (3) ◽  
Author(s):  
Vanessa C. Nicolete ◽  
Priscila T. Rodrigues ◽  
Anderson R.J. Fernandes ◽  
Rodrigo M. Corder ◽  
Juliana Tonini ◽  
...  
Keyword(s):  

2023 ◽  
Vol 83 ◽  
Author(s):  
D. Olentino ◽  
C. C. F. Lubich ◽  
M. D. P. Rocha ◽  
J. H. N. Santos ◽  
T. Gomes ◽  
...  

Abstract This study estimated the length–weight relationships of 16 fish species occurring close to the shores of sandy beaches along the lower Negro River basin, Brazilian Amazon. The specimens were captured for one day each month, in October to November 2016, early in the morning and early evening, using trawl net (20 m taken for standard length (SL – 0.1 cm precision) and total weight (TW – 0.01 g precision). The parameters a and b of the equation WT = a.LTb were estimated. The a values ranged from 0.0018 to 0.0226 and b values ranged from 2.5271 to 3.3244. This study also provides new data on of maximum lengths for six species, Amazonsprattus scintilla, Brycon pesu, Moenkhausia megalops, Pachyurus paucirastrus, Reganella depressa and Trachydoras microstomus, and new reports of the LWRs parameters of 15 fish species.


2022 ◽  
Vol 170 ◽  
pp. 104297
Author(s):  
Jessica Aparecida Ferrarezi ◽  
Paula de Almeida Carvalho-Estrada ◽  
Bruna Durante Batista ◽  
Rafael Martins Aniceto ◽  
Bruno Augusto Prohmann Tschoeke ◽  
...  

2022 ◽  
Vol 17 (12) ◽  
Author(s):  
Ronaldo Lopes De Sousa ◽  
Sebastião Gomes Silva ◽  
Jeferson Miranda Costa ◽  
Wanessa Almeida Da Costa ◽  
Ana Aurea Barreto Maia ◽  
...  

Carapa guianensis species belongs to the Meliaceae family and, in the Brazilian Amazon, it has great importance in folk medicine, mainly because the oil extracted from its seeds presents varied biological activities. Thus, the present work aimed to analyze, by gas phase chromatography coupled to mass spectrometry (GC/MS), the chemical composition of manually extracted andiroba oil, from Mamangal community, located in Igarapé-Miri, Pará, Brazil. As results, 99.63% of the constituents of the oil sample were identified and quantified from which the main components were oleic, palmitic, stearic, and linoleic acids. The manual oil extraction from andiroba seeds in the Mamangal community is sustainable and economically viable. Due to the high content of saturated and unsaturated fatty acids C. guianensis oil can be considered interesting useful for pharmaceutical and cosmetic industries. Indeed, the unsaturated fatty acids represented 57.5% of the oil constituents, among which the essential ones stand out, as they have great applicability in healing drugs formulation.


Author(s):  
Juliana Siqueira-Gay ◽  
Diogo Santos ◽  
Wilson R. Nascimento ◽  
Pedro Walfir M. Souza-Filho ◽  
Luis Enrique Sánchez

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