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New records of three Neotropical arboreal ant species of Camponotus, subgenus Dendromyrmex (Hymenoptera: Formicidae) for the southern Amazon, including biological information Acta Amazonica
VICENTE,Ricardo Eduardo; FERREIRA-SILVA,Diego; GUERREIRO DE LIMA,Mendelson.
ABSTRACT Camponotus (Formicinae) is the most specious and abundant genus of the family Formicidae. The genus is represented by ants that both forage and nest in the most diverse terrestrial and arboreal environments. Among the arboreal species of Camponotus are those of the subgenus Dendromyrmex. We recorded, for the first time, evidence of Camponotus chartifex (Smith, 1860) in the state of Mato Grosso, Brazil, and expanded the distributions of Camponotus nidulans (Smith, 1860) and Camponotus apicalis (Mann, 1916). We include information on the biology of the species and a discussion on the sampling of arboreal and winged ants.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Distribution; Formicinae; Camponotus chartifex; Camponotus nidulans; Camponotus apicalis; Winged ants.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000100036
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Byron Wilson Pereira de Albuquerque (1932-2003) Acta Amazonica
Rodrigues,William A..
Tipo: Info:eu-repo/semantics/report
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672006000100001
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First description of the worker of Planicapritermes longilabrum with notes on the nest of Planicapritermes planiceps (Blattaria: Isoptera: Termitidae) Acta Amazonica
ALMEIDA-AZEVEDO,Rayssa; AZEVEDO,Renato Almeida de; SOBRAL,Rafael; MORAIS,José Wellington de.
ABSTRACT Planicapritermes Emerson, 1949 is a South American termite genus with two nominal species: Planicapritermes planiceps (Emerson, 1925) and Planicapritermes longilabrum Constantino, 1998. The soldiers of this genus are characterized by strongly asymmetrical mandibles. Planicapritermes planiceps was described from soldiers and workers, and P. longilabrum only from soldiers. Here we describe and illustrate workers of P. longilabrum based on specimens collected in Rondônia state, Brazil. We also present a comparison between workers and soldiers of P. planiceps and P. longilabrum, and describe the nest of P. planiceps.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Amazon forest; Gut anatomy; Taxonomy; Termites.
Ano: 2021 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100063
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Evidence of mutagenic and lethal effects of herbicides on Amazonian frogs Acta Amazonica
FERRANTE,Lucas; FEARNSIDE,Philip M..
ABSTRACT Amphibians are excellent bioindicators because they are sensitive to chemical pollution and can indicate ecosystem changes due to the presence of or exposure to chemical compounds. Here we report evidence of the impact of herbicides, including glyphosate, on amphibians in a locality in the central Brazilian Amazon and compare it with data from other biomes in Brazil. We observed malformations in three species of Leptodactylus and local extinctions of Scinax ruber and Rhinella marina from reproductive sites close to an area where herbicides had been applied. The observations in the Amazon are similar to reports from Brazil’s Atlantic forest on morphological anomalies and mortality in amphibians exposed to herbicides. We warn of the threat of...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Agrochemicals; Amazon Forest; Anurans; Bioindicators; Ecotoxicology; Environmental impact.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400363
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Long time not seen: Expanding the records of Loxosceles amazonica (Araneae: Sicariidae) in the Amazonas state, Brazil Acta Amazonica
ALMEIDA,Marlus Q.; SALVATIERRA,Lidianne; CARVALHO,Thiago G.; PRESTES,Francisco J.; BRESCOVIT,Antonio D.; GASNIER,Thierry R..
ABSTRACT Spiders of the genus Loxosceles, commonly known as brown recluse spiders, can cause serious accidents in humans. Their venom has a powerful proteolytic and hemolytic action. Each year these spiders are the cause of a great number of araneism in Brazil. This work presents new records of Loxosceles amazonica for the municipal districts of Manaus and Iranduba, Amazonas, Brazil.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Brown recluse spiders; Venomous spider; Loxoscelism; Distribution.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000200163
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Predation of Boana boans (Anura, Hylidae) by an opportunistic frugivorous primate Acta Amazonica
CAVALCANTE,Thiago; SIMÕES,Pedro Ivo; MOURTHE,Italo.
ABSTRACT Although relatively common among omnivorous primates, anurophagy is still poorly documented in frugivorous species. Here we report the predation of a giant gladiator treefrog (Boana boans) by a large arboreal frugivore, the gray woolly monkey (Lagothrix lagotricha cana). The predation event occurred in a stretch of riparian forest located in a fragmented region in Cacoal, Rondônia state, in southwestern Brazilian Amazonia. Anurans can be a profitable, non-contested, and relatively easily acquired alternative resource for gray woolly monkeys, helping to fulfill their demand for protein, especially in periods of fruit scarcity. This new record broadens the knowledge on the natural history and predators of the giant gladiator frog.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Amazonia; Anuran predation; Anurophagy; Diet; Lagothrix lagotricha cana.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000400307
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Description of immature stages of Ablabesmyia cordeiroi Neubern, 2013 (Diptera: Chironomidae: Tanypodinae) Acta Amazonica
SILVA,Fabíola Lima DA; DANTAS,Galileu Petronilo da Silva; HAMADA,Neusa.
ABSTRACT Abalesmyia cordeiroi Neubern was originally described based on adult males collected in the Amazon region; therefore, females and immatures of this species are unknown. In the present study, the pupal and larval stages of A. cordeiroi are described and illustrated. In addition, an amendment to the larval diagnosis of Ablabesmyia is provided.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Aquatic insects; Non-biting midges; Pentaneurini; Brazil.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000200118
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Importância do método de gota espessa de sangue no diagnóstico de filárias simpátricas no Amazonas, Brasil Acta Amazonica
Medeiros,Jansen F; Pessoa,Felipe Arley Costa; Martins,Marilaine.
Esse trabalho relata os métodos de diagnósticos para filárias humanas no sangue, referindo-se a importância do método de gota espessa em relação aos métodos de filtração em membrana de policarbonato e Knott na diferenciação das espécies de microfilárias, principalmente em áreas de ocorrência de mais de uma espécie, como em regiões do Amazonas. Lâminas com microfilárias de Mansonella ozzardi foram montadas e fotografadas pelos diferentes métodos de diagnósticos. O método da gota espessa de sangue é o mais confiável, pois permite visualizar com nitidez o espaço cefálico e caudal, disposição dos núcleos caudais e formato da cauda, que são características morfológicas que diferenciam as espécies de microfilárias sanguíneas que ocorrem no Amazonas.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Filariose; Métodos de diagnósticos; Mansonella ozzardi; Mansonella perstans.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672010000400020
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First record of Anastrepha obliqua (Diptera: Tephritidae) and a tritrophic relation with parasitoids in a citrus orchard in Pará state, Brazil Acta Amazonica
RODRIGUES,Marlon Gonçalves; CAMARGOS,Maria Gisely; ALVARENGA,Clarice Diniz; SILVA,Rosana Cardoso Rodrigues da; AYRES,Álvaro Remígio.
ABSTRACT Citriculture is a growing industry in Pará state, Brazil, but information regarding fruit flies and their associated parasitoids in this region is lacking. To address this gap in knowledge, we collected oranges (Citrus sinensis), lime oranges (C. sinensis), common sweet limes (C. limettioides), citrons (C. medica) and mandarins (C. reticulata). We recorded field infestation by Anastrepha obliqua in C. sinensis under natural conditions for the first time in the study region, and a tritrophic relationship between C. sinensis, A. obliqua, and the parasitoids Opius bellus and Asobara anastrephae was identified.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Citrus sinensis; Braconidae; Eastern Amazon.
Ano: 2021 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672021000100030
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First record of the association of the weevil Loncophorus longinasus with the fruit of munguba, Pseudobombax munguba in Central Amazonia, Brazil Acta Amazonica
KEPPLER,Stefan Friedrich; SILVA,Neliton Marques da.
ABSTRACT We report the first record of occurrence of Loncophorus longinasus in fruits of munguba, Pseudobombax munguba, in the state of Amazonas, Brazil. Some morphological and biological aspects of L. longinasus are presented. Adults were obtained through natural emergence from munguba fruits that opened for seed dispersal. The fruits had perforations leading to galleries through the exocarp. Inside the fruit, larvae were found at the seed insertion points on the central seed attachment structure. The pupae developed in a cocoon at the same structure and turned mature simultaneously with the capsule opening. Together with the larvae, the presence of ants (Pseudomyrmex sp.) was observed, that apparently maintained the galleries open for access and feeding...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Insecta; Curcilionidae; Immature; Malvaceae; Ants; Pseudomyrmex.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100001
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Marlene Freitas da Silva (1937-2005) Acta Amazonica
Rodrigues,William A..
Tipo: Info:eu-repo/semantics/report
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672006000100002
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Range extension of Diclidurus scutatus (Chiroptera, Emballonuridae) to southwestern Amazonia Acta Amazonica
NOVAES,Roberto Leonan Morim; CLÁUDIO,Vinícius Cardoso; KUNIY,Adriana Akemi.
ABSTRACT Diclidurus scutatus is an aerial insectivore bat endemic of South America and considered rare throughout its distribution range. We present the first record of this species in Rondônia State, northern Brazil, expanding its distribution more than 1000 km into southwestern Amazonia. Including this record, D. scutatus is known for 20 localities from eight countries (Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, Venezuela), and two biomes-Amazonia and Atlantic Forest.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Distribution; Lesser ghost bat; Western Amazon; Rondônia.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000400359
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Refractometry as an alternative to the biuret method for measuring total serum proteins in Podocnemis expansa (Podocnemididae) and Phrynops geoffroanus (Chelidae) Acta Amazonica
PESSOA,Lourdes Marina Bezerra; LIMA,Maíra Gonçalves da Mota; CARNEIRO,Filipe Tavares; ZANANI,Nathalia Salgado; SCALON,Marcela Corrêa; SILVA,Thamiris Figueiredo; LIMA,Mariana Accioly; ABRAHIM,Maia Araújo; PALUDO,Giane Regina.
ABSTRACT Total serum protein is a significant indicator of health condition in animals. The aim of this study was to analyze the precision of the portable refractometer in determining the concentration of total serum proteins in Podocnemis expansa and Phrynops geoffroanus. A total of 26 animals were used. The blood samples were collected from the supraoccipital sinus and stored in tubes without anticoagulant. Total serum protein was determined using both the biuret reaction and refractometry. The total serum protein mean concentration (g dL-1) with biuret method and refractometry for P. expansa were 3.16 and 3.2; and for P. geoffroanus were 3.56 and 2.72, respectively. These results indicate that total serum protein values can be determined with precision...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Biuret method; Refractometry; Podocnemis expansa; Phrynops geoffroanus.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000100083
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Population fluctuations in the pink hibiscus mealybug and its natural enemies in Annona squamosa (Annonaceae) in Roraima, Brazil Acta Amazonica
NEGRINI,Marcelo; MORAIS,Elisangela G. F.; BATISTA,Jéssica S. R.; CHAGAS,Edvan A..
ABSTRACT Maconellicoccus hirsutus (Hemiptera, Pseudococcidae), a species of economic interest, especially for fruit plants, is expanding on the South American continent. Information about the population dynamics of this pest associated with control by natural enemies and cultural practices is fundamental for its management. Our objective was to study the population fluctuations in M. hirsutus and its natural enemies in a sugar-apple (Annona squamosa) orchard in Roraima, northern Brazil. Trees were evaluated monthly over a 12-month period. Infestation rates by M. hirsutus and its parasitism were also estimated for potential host plants around the study area. Highest infestation occurred in August and February-March. Alternative hosts were infested during...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Anagyrus kamali; Biological control; Maconellicoccus hirsutus.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000100028
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First report of Myxobolus (Cnidaria: Myxozoa) spores in human feces in Brazil Acta Amazonica
REIS,Lisiane Lappe dos; JESUS,Lucas Carvalho de; FERNANDES,Ormezinda Celeste Christo; BARROSO,David Eduardo.
ABSTRACT Most species of Myxobolus (Cnidaria: Myxozoa) infect freshwater and marine fish, and cause sporozoosis. Passage of myxozoan parasites into human feces has been described occasionally. We examined fecal samples from 97 dwellers of a riverine community in Amazonas State (Brazil), which revealed Myxobolus sp. in 13 (13%) samples. The discovery probably does not represent true parasitism as the myxospores - most likely ingested through the consumption of infected fish - were eliminated unchanged after passing through the gastrointestinal tract. This discovery represents the first report of this myxosporean in human fecal samples in Brazil.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Myxosporean; Human infection; Amazon; Fish consumption.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672019000200162
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Nestling development and data on nests and eggs of Topaza pella (Aves, Trochilidae) in Amapá state, northern Brazil Acta Amazonica
FRANÇA,Pedro Ferreira; SANTOS,Wirley Almeida; COSTA-CAMPOS,Carlos Eduardo; LOPES,Edson Varga.
ABSTRACT The Crimson Topaz, Topaza pella, is the least known of the two hummingbird species of this exclusively Amazonian trochilid genus, that also includes T. pyra. Most available information on T. pella nests, young and reproductive behavior is based on anecdotal observations from Guyana in the 1930s and 1950s. Here, we provide new data on nest description, eggs and parental care of T. pella, and the growth and development of two nestlings over a 22-day period. We studied four nests in areas of dense terra firme forest in the state of Amapá, Brazil. All nests were in forked branches of shrubs over water bodies, and had a cup-like form. One nest contained two elongated white eggs, and another, two nestlings, which had their development recorded until...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Amazonia; Hummingbirds; Reproduction; Crimson Topaz; Parental care.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200138
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Length-weight relationship and condition factor for twelve fish species from the Igarapé Fortaleza basin, a small tributary of the Amazonas River estuary Acta Amazonica
OLIVEIRA,Marcos Sidney Brito; SILVA,Luís Maurício Abdon; PRESTES,Luiza; TAVARES-DIAS,Marcos.
ABSTRACT Length and weight data are useful in fisheries management and standard results of fish monitoring programs. Length-weight relationship (LWR) is used for estimating the weight corresponding to a given length, and the condition factor is used to compare the body condition, fatness or health of fish populations. This study aimed to estimate the LWR and the condition factor for 12 freshwater fish species from the Igarapé Fortaleza basin, a tributary of the Amazonas River system in the State of Amapá, eastern Amazon (Brazil). The coefficient of determination, the allometric condition factor and the allometric coefficient varied among species, and were compared with populations elsewhere. In 83.3% of the species, the allometric coefficient remained...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Allometry; Brazil; Freshwater fish; Growth pattern.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100008
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Temporal progress of teak rust in a tropical area of Tocantins State, Brazil Acta Amazonica
SALES,Nathana Izabela Silva; LEÃO,Evelynne Urzêdo; CORREIA,Lucas Caius Moreira do Amaral; SIQUEIRA,Chrystian de Assis; SANTOS,Gil Rodrigues dos.
ABSTRACT Rust, caused by Olivea neotectonae, stands out as the main teak disease, causing premature defoliation regardless of the tree’s growth stage. In this study, we aimed to assess the temporal progress of rust in adult teak plants in southern Tocantins State (Brazil). Both rust incidence and severity were evaluated and the disease progress curves were obtained, adjusting to monomolecular, logistic and Gompertz mathematical models. Data from incidence and severity were correlated with climate variables collected by the agrometeorological station located in the study area. Rust incidence reached 100% at 98 days after beginning of the evaluations (DBE). The highest severity (equal or above 75%) was observed at 147 DBE. There was a significant and...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Epidemiology; Tectona grandis; Olivea neotectonae.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000300277
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Type species designation of Shelleyellum Py-Daniel & Pessoa, 2005 (Diptera: Simuliidae) Acta Amazonica
Py-Daniel,Victor; Pessoa,Felipe Arley Costa.
Tipo: Info:eu-repo/semantics/report
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672006000100017
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New records on the use of man-made constructions as diurnal roosts by bats from the southern Amazon in central Brazil Acta Amazonica
LIMA,Camila S.; VARZINCZAK,Luiz H.; OLIVEIRA,Rafael de; PASSOS,Fernando C..
ABSTRACT Roosts are a key part of bat species' life stories. Information on roost use enables us to understand the biological processes underlying bat ecology and is crucial with regard to the natural-roost loss and environmental pressures related to habitat destruction that has been considered as a threat affecting bat conservation. The aim of this study was to collect new data on the diurnal artificial-roost use by bats in a landscape from the southern Amazon. We observed bat species roosting at an abandoned house in a highly fragmented ecotone between the Amazon and Cerrado biomes. We observed one Trachops cirrhosus individual roosting in physical contact with one Phyllostomus hastatus. One year later, we noticed a compositional change at this roost, in...
Tipo: Info:eu-repo/semantics/report Palavras-chave: Trachops cirrhosus; Phyllostomus hastatus; Pteronotus parnelli; Roosting behavior.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000100079
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