SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

HELENBROOK,William. D.; WILKINSON,Madison L.; SUAREZ,Jessica A..

ABSTRACT The black-headed night monkey, Aotus nigriceps, has one of the largest distribution ranges of the 11 night monkey species found across Central and South America. Yet, only three studies have focused on their ecology, describing considerable variation in habitat, group composition, and population density. Therefore, we analyzed habitat use, group composition, population density, and diet of 14 groups at two field sites in southeastern Peru. All sampled groups were found in secondary tropical rainforest, often dominated by native bamboo species. Half of the observed sleeping sites were in bamboo stands, though groups also emerged from cane thickets and lianas. This contrasts with other Aotus studies which have found groups living in tree cavities...

Obtaining monokaryotic and dikaryotic mycelial cultures of two Amazonian strains of Geastrum (Geastraceae, Basidiomycota)

Palavras-chave: Amazon; Primates; Aotidae; Conservation; Owl monkey; Nocturnal; Habitat.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100037

SANTANA,Marcos Diones Ferreira; VARGAS-ISLA,Ruby; NOGUEIRA,Janaina da Costa; ACCIOLY,Thiago; SILVA,Bianca Denise Barbosa da; COUCEIRO,Sheyla Regina Marques; BASEIA,Iuri Goulart; ISHIKAWA,Noemia Kazue.

ABSTRACT The high diversity of the genus Geastrum and the difficulty of obtaining mycelial cultures impairs the study of the ecophysiology and the exploration of the biotechnological potential of the taxon. In this study, different culture media were tested to obtain mycelial cultures for G. lloydianum and G. subiculosum collected in the Brazilian Amazon. Data on spore germination, and isolation of monokaryotic cultures and in vitro sexual reproduction are presented, as well as a brief morphological description of the cultures obtained. For both species, Potato Dextrose Agar (PDA) was the most promising of the tested culture media. The highest growth in agar culture ever recorded for this genus is reported (4.9 mm per week for G. lloydianum and 7.5 mm for...

Morphology and distribution of the freshwater mussel Diplodon granosus, a rare and poorly understood species

Palavras-chave: Earthstars; Gasteroid fungus; Geastrum lloydianum; Geastrum subiculosum; Mycelial growth.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100061

MIYAHIRA,Igor Christo; MANSUR,Maria Cristina Dreher; PIMPÃO,Daniel Mansur; COUCEIRO,Sheyla Regina Marques; SANTOS,Sonia Barbosa dos.

ABSTRACT Diplodon granosus was one of the first freshwater mussels to be described for South America. However, the status of the species was confusing for a long time, receiving different taxonomic treatments. In this paper, we redescribe the shell, with new data on the soft parts and information on the distribution and conservation of D. granosus, a rarely recorded species. The shell is thin, not inflated; the macrosculpture is composed only by granules that cover the whole shell, not forming bars; the microsculpture comprises short spikes. In the soft parts we highlight the few, weak and irregularly distributed lamellar connections of the outer demibranch and some features of the stomach, such as the distally enlarged minor typhlosole. There are records...

Litter decomposition and nutrient release dynamics of leaves and roots of the babassu palm in eastern Amazonia

Palavras-chave: Unionida; Hyriidae; Rhipididontini; Taxonomy; Conservation.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100044

LUZ,Ronildson Lima; LEITE,Márcio Fernandes Alves; ZELARAYÁN,Marcelo Correa; BODDEY,Robert Michael; GEHRING,Christoph.

ABSTRACT The ruderal babassu palm (Attalea speciosa) is expanding on large areas of degraded Amazon landscapes. Decomposition of leaves and roots is in the center of plant:soil interactions. We evaluated decomposition and nutrient concentrations of leaves and fine roots of babassu in comparison with two exotic reference species, Acacia mangium (slow degradability) and Leucaena leucocephala (fast degradability), in a 138-day litterbag assay carried out in secondary forest stands of different age and babassu abundance. We chose 4-mm over 2-mm mesh litterbags based on a pilot study. Babassu leaves degraded slower than leaves of A. mangium and L. leucocephala, and also had lower nitrogen, phosphorus and calcium concentrations in all stages of decomposition. By...

Ocurrence of pepper yellow mosaic virus and cucumber mosaic virus on Capsicum chinense in the state of Amazonas, Brazil

Palavras-chave: Attalea speciosa; Litter bag; Nutrient concentrations; Ruderal palm; Secondary succession; Soil organic matter.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300213

SOUZA,Leonor Cristina Silva; HANADA,Rogerio Eiji; ASSIS,Luiz Alberto Guimarães; CAMELO-GARCÍA,Viviana M.; REZENDE,Jorge Alberto Marques; YUKI,Valdir A.; KITAJIMA,Elliot W..

ABSTRACT The habanero chilli pepper, Capsicum chinense is an important crop in the Amazon Basin, mainly grown by small-scale producers. Capsicum chinense plants in an experimental field in the northern Brazilian state of Amazonas were found exhibiting characteristic symptoms of viral infection. Leaf sap from symptomatic plants examined under a transmission electron microscope revealed the presence of elongated flexuous particles and isometric particles. Using molecular assays, the viruses were identified as pepper yellow mosaic virus (PepYMV) and cucumber mosaic virus (CMV). Aphids, identified as Aphis gossypii, were found colonizing the C. chinense plants in the field and may be the vector for both PepYMV and CMV. We report the first occurrence of these...

Performance and economic viability of tambaqui, Colossoma macropomum, selectively bred for weight gain

Palavras-chave: Cucumovirus; Potyvirus; Transmission electron microscopy; RT-PCR; Aphis gossypii.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000100005

SILVA,Ana Carla Carvalho; BARROS,Adriana Fernandes de; MENDONÇA,Flávia Maria Fernandes; GAMA,Kamyla Fernanda da Silva; MARCOS,Rebeca; POVH,Jayme Aparecido; FORNARI,Darci Carlos; HOSHIBA,Márcio Aquio; ABREU,Janessa Sampaio de.

ABSTRACT Tambaqui, Colossoma macropomum, is one of the most produced species in Brazilian fish farming, which has boosted the development of new technologies to increase its productivity. The aim of this study was to evaluate production performance in two second-generation tambaqui stocks selectively bred for weight gain in a semi-intensive rearing system and assess its influence on total production cost. We analyzed 300 fish (initial mean weight and standard length of 160 g and 17 cm, respectively) of two families (A and B, 150 fish each). The fish were individually marked with microchips and stocked in an 800-m2 excavated pond. For economic analysis, the obtained performance data were extrapolated for a fish farm with a 10-ha pond, adopting the Total...

Distribution update, conservation status and color in life of the rare Amazonian snake, Eutrachelophis papilio Zaher and Prudente 2019 (Serpentes: Xenodontini)

Palavras-chave: Aquaculture productivity; Breeding; Fish farming; Production cost; Native Brazilian fish.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200108

CITELI,Nathalie; DE-CARVALHO,Mariana; BRANDÃO,Reuber.

ABSTRACT The rare Amazonian snake Eutrachelophis papilio is known from only five individuals, from four localities, belonging to its type-series, the more recent collected over 10 years ago. Here, we expand its distribution and describe its color in life for the first time. We also provide an estimate of its distribution area using the minimum convex polygon method and identify the values of anthropic pressure within its known distribution range with the Human Footprint Index. The new occurrence is located 291 km from the nearest known locality and its distribution is associated with pristine forests. Considering its rarity, and the absence of demographic and biological data, we suggest that the species should be classified as Data Deficient by IUCN...

Effects of experimental lightgaps and topography on enrichment plantings in a central Amazonian secondary forest

Palavras-chave: Conservation status; Forest species; Human footprint; Minimum convex polygon.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300252

BENTOS,Tony Vizcarra; NASCIMENTO,Henrique E. M.; VIZCARRA,Marisângela dos Anjos; WILLIAMSON,G. Bruce.

ABSTRACT Enrichment plantings into secondary forest are an important option in restoring species diversity and ecosystem services. However, little attention has been given to environmental requirements for species performance. This study evaluated the effects of lightgaps and topographic position on the growth and survival of four native tree species (Pouteria caimito, Garcinia macrophylla, Dipteryx odorata and Cynometra bauhiniaefolia) planted into a 26-year old secondary forest originating from abandoned pastures in the central Amazon Basin. Artificial lightgaps and control plots under closed canopy were uniformly distributed on plateaus and bottomlands near water bodies. Seedlings were planted randomly into the plots and monitored for 28 months....

New records of Leptospira spp. in wild marsupials and a rodent in the eastern Brazilian Amazon through PCR detection

Palavras-chave: Abandoned pastures; Environmental conditions; Height growth; Light availability.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300192

SOUZA ROCHA,Katarine de; SCHUPP DE SENA MESQUITA,Gleiciane; SILVA FERREIRA,Maeli Fernanda; LEITE BARROS,Flávia de Nazaré; MACEDO,Renata Cecília Soares de Lima; ARAÚJO SARAIVA,Elane de; MENDES-OLIVEIRA,Ana Cristina; DUARTE CERQUEIRA,Valíria; SCOFIELD,Alessandra; GOES CAVALCANTE,Gustavo; ABEL,Isis; GUIMARÃES DE MORAES,Carla Cristina.

ABSTRACT We analyzed the presence of Leptospira spp. in liver and kidney tissue of wild marsupials and rodents trapped in a periurban forest in the eastern Brazilian Amazon. We examined 25 individuals of four marsupial and seven rodent species for the presence of the 16S rRNA gene of Leptospira in the DNA extracted from 47 liver and kidney tissue samples using PCR. We detected positive samples in 12% (3/25) of the individuals, in kidney fragments of two marsupial species (Didelphis marsupialis and Marmosops pinheiroi) and in a liver fragment of one rodent species (Echimys chrysurus). These are the first records of Leptospira spp. in M. pinheiroi and E. chrysurus and it is the first molecular survey of marsupials and rodents in the Brazilian Amazon.

Thermoregulation mode, substrate temperature and camouflage efficiency affecting defensive behavior of lizards in Amazonia

Palavras-chave: Didelphimorphia; Rodentia; Live traps; Kidney; Liver; 16S rRNA.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400305

SOUZA,Erika; COELHO,Ana; SANTOS-JR,Alfredo P.; KAWASHITA-RIBEIRO,Ricardo Alexandre; FRAGA,Rafael de.

ABSTRACT In ectotherms, defensive responses to predators usually depend on cost-benefit relationships between death risk and the energy required to flee. In this study we investigate Amazonian lizards to test the hypothesis that the minimum predator approach distance (PAD) is influenced by temperature and camouflage. We test the hypothesis that PAD estimated for species with different thermoregulation modes respond differently to temperature and camouflage. We sampled 35 lizards of a heliotherm and a non-heliotherm species, for which we simulated a terrestrial visually oriented predator. Using a fixed-effects linear model, temperature positively affected PAD estimates, but the camouflage did not contribute to the model. Using a mixed linear model assuming...

Genetic diversity and population structure of endangered rosewood from the Peruvian Amazon using ISSR markers

Palavras-chave: Cnemidophorus lemniscatus; Escape; Gonatodes humeralis; Heliotherm; Non-heliotherm; Predation pressure.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400339

GUIZADO,Stalin Juan Vasquez; NADEEM,Muhammad Azhar; ALI,Fawad; BARUT,Muzaffer; HABYARIMANA,Ephrem; GÓMEZ,Tedi Pacheco; SANTILLAN,Jhon Antoni Vargas; CANALES,Esperanza Torres; GÓMEZ,Juan Carlos Castro; CHUNG,Gyuhwa; BALOCH,Faheem Shehzad.

ABSTRACT Rosewood, Aniba rosaeodora is an endangered species in Amazon forests and its natural stands have been heavily depleted due to over-exploitation for the cosmetic industry. This study aimed to investigate the genetic diversity and population structure of 90 rosewood accessions from eight localities in the Peruvian Amazon through 11 Inter Simple Sequence Repeats (ISSR) primers. The ISSR primers produced a sum of 378 bands, of which 375 (99.2%) were polymorphic, with an average polymorphism information content (PIC) value of 0.774. The mean effective number of alleles (Ne), Shannon informative index (I), gene diversity (He) and total gene diversity (Ht) were 1.485, 0.294, 0.453 and 0.252, respectively. Analysis of molecular variance (AMOVA) showed...

Vegetative rescue potential of Brazil nut through epicormic shoots on detached branches

Palavras-chave: Aniba rosaeodora; Endangered species; Gene flow; Germplasm; Molecular characterization.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300204

CONCEIÇÃO,Jônathan Brito Fontoura; FERREIRA,Sidney Alberto do Nascimento; LIMA,Natália Neves de.

ABSTRACT Obtaining juvenile material may favor the clonal propagation of Brazil nut, Bertholletia excelsa. We aimed to assess the emission of epicormic shoots on detached branches of Brazil nut trees as a function of the mother tree and branch diameter, in order to provide juvenile material for use in clonal multiplication. The experimental design was completely randomized in a 6 (mother trees) x 3 (stem diameter: < 20 20-40 and 40-80 mm) factorial design, with four replicates. Every five days the number of shoots emitted was counted and the sprouting speed index and average sprouting time were calculated. The number of epicormic shoots and the sprouting speed index were dependent on the interaction between mother tree and branch diameter. Branches with...

First record of Vanilla labellopapillata (Orchidaceae: Vanilloideae) in the state of Amazonas, Brazil

Palavras-chave: Lecythidaceae; Asexual reproduction; Juvenility; Clonal forestry.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300199

KRAHL,Dayse Raiane Passos; KRAHL,Amauri Herbert; CHIRON,Guy; TERRA-ARAÚJO,Mário Henrique.

ABSTRACT The first record of Vanilla labellopapillata is presented for the state of Amazonas, Brazil, in the region of Manaus, now the western limit of the species, which was previously known only from the type locality in the state of Pará. A brief description is provided and taxonomic and ecological aspects of the species are discussed in the light of this new finding.

First record of the gray-legged tinamou, Crypturellus duidae, and other poor-soil specialist birds from peatlands in the Putumayo River basin, Loreto, Peru

Palavras-chave: Adolpho Ducke Forest Reserve; Amazon; Dense ombrophilous forest; Hemiepiphyte; Taxonomy.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300260

VÁSQUEZ-ARÉVALO,Francisco A.; ZÁRATE-GÓMEZ,Ricardo; SOCOLAR,Jacob B.; DÍAZ-ALVÁN,Juan; PÉREZ-PEÑA,Pedro E..

ABSTRACT Crypturellus duidae (Tinamidae) is a poor-soil specialist with isolated populations in Amazonia, and is considered restricted to white-sand forest habitats. We report the first record of C. duidae in a peatland forest in northern Peru, in the Putumayo River basin. Our record extends the known distribution of C. duidae between two disjoint areas of occurrence in Peru and Colombia, and shows its presence in peatland forest, another forest type on nutrient-poor soils. Additionally, we report the presence of other poor-soil specialist bird species that were previously registered in peatlands. Together with the new record of C. duidae, these bird records provide evidence of the diversity of poor-soil specialists in peatland forests.

Simultaneous selection of cupuassu tree and Brazilian mahogany genotypes in an agroforestry system in Pará state, Brazil

Palavras-chave: Mauritia flexuosa; Palm swamps; White-sand forests; Amazonia.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200155

ALVES,Rafael Moysés; CHAVES,Saulo Fabrício da Silva; GAMA,Marcos André Piedade; PEDROZA NETO,Jack Loureiro; SANTOS,Thalita Gomes dos.

ABSTRACT This study aimed to evaluate and select progenies and matrices of cupuassu-tree siblings, and to select Brazilian mahogany matrices with superior characteristics to be used in agroforestry systems (AFS). Twenty-five full cupuassu tree sibling progenies and one Brazilian mahogany half-sibling progeny were evaluated. The study was conducted for 14 years in a commercial property in Tomé Açu, Pará State, Brazil. The number of fruits and fruit yield per plant, as well as the rate of plants with symptoms of witches’ broom disease, were used as response variables for cupuassu. For mahogany, the following response variables were used: total height, commercial height, crown height, diameter at breast height and commercial wood volume. There were five...

Oviposition of Minstrellus grandis (Lepidoptera: Riodinidae) in a harmful ant-plant symbiosis

Palavras-chave: Theobroma grandiflorum; Swietenia macrophylla; Genetic breeding; Intercropping.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300183

KAMINSKI,Lucas A.; CARNEIRO,Eduardo; DOLIBAINA,Diego R.; CASAGRANDE,Mirna M.; MIELKE,Olaf H. H..

ABSTRACT The oviposition behavior of the rare butterfly Minstrellus grandis (Callaghan, 1999) (Lepidoptera: Riodinidae) is recorded for the first time. Two females laid eggs on the old leaves of an unidentified Triplaris Loefl. ex L. (Polygonaceae), a myrmecophytic plant typically known as ‘Triplaria’ or ‘novice’ tree, inhabited by aggressive ‘taxi’ ants of the genus Pseudomyrmex Lund. 1831 (Hymenoptera: Formicidae). These observations suggest that M. grandis caterpillars live associated with one of the most harmful types of Amazon ant-plant symbiosis.

A feasible method to extract DNA from the cambium of high-canopy trees: from harvest to assessment

Palavras-chave: Carnivory; Myrmecophily; Host plant selection; Pachythonina; Social parasitism.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300256

MANGARAVITE,Érica; TERRA,Vanessa; HATTORI,Eric Koiti Okiyama; DAL’SASSO,Thaís Carolina da Silva; BHERING,Leonardo Lopes; OLIVEIRA,Luiz Orlando de.

ABSTRACT Many tropical trees have high canopies and their leaves are not accessible. Thus, the use of tissue from a more accessible organ (cambium) for DNA extraction may be an alternative for molecular studies. We adapted a feasible methodology for extracting genomic DNA from cambium tissue harvested in the field for the assessment with PCR. We tested three storage conditions (two buffers and a silica gel) and four periods of time after harvest. We used previously described protocols and tested them on three species that occur in Amazonian forests and other biomes: Anadenanthera peregrina var. peregrina, Cedrela fissilis, and Ceiba speciosa. Our protocol obtained suitable PCR-grade genomic DNA for DNA sequencing and microsatellite genotyping. We recommend...

Contribution to the knowledge of Camillea (Ascomycota, Graphostromataceae) in the Amazon forest in Pará, Brazil

Palavras-chave: Ascorbic acid; Dithiothreitol; DNA isolation.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400335

SANTANA,Marcos Diones Ferreira; COUCEIRO,Douglas de Moraes; COUCEIRO,Sheyla Regina Marques.

ABSTRACT Three species of the Ascomycetes genus Camillea were recorded in a fragment of Amazon rainforest in the region of Santarém, Pará state, Brazil. The occurrence of C. leprieurii, C. cyclops and C. bilabiata expand the range of distribution of these species in the state. Camillea leprieurii has previous records in the regions of Marabá, Oriximiná, Itaituba and Novo Progresso, while C. cyclops had been recorded in the west of the state. This is the first record of C. bilabiata for Pará. We provide a morphological description of the specimens and an identification key for Camillea species found in Pará.

Description of the female and larval stage of Denopelopia amicitia Dantas, Hamada & Mendes (Diptera: Chironomidae)

Palavras-chave: Ascomycetes; Fungi; Mycodiversity; Xylariales.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300273

DANTAS,Galileu P.S.; HAMADA,Neusa.

ABSTRACT Denopelopia amicitia Dantas, Hamada & Mendes was described based on the male and pupae collected in the Brazilian Amazon. Here we describe and illustrate the female and larva of this species. At both stages, D. amicitia is similar to Denopelopia atria Roback & Rutter, which is the only species in the genus with all life stages known until now.

Notes on natural history and behavior of Monodelphis glirina (Didelphimorphia, Didelphidae) and sympatry with congeners

Palavras-chave: Aquatic insects; Tanypodinae; Pentaneurini; Amazonia; Brazil.

Ano: 2020

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000400313

BRANDÃO,Marcus Vinicius; SEBASTIÃO,Harley; KUNIY,Adriana Akemi; CAVALIERI,Soraya; GODOY,Leandro Perez.

ABSTRACT Monodelphis glirina is endemic to the Amazon and its life habits and natural history are poorly known. Data on the species were collected in northern Mato Grosso, Brazil, including observations on its behavior and simpatry with congeners. During 10 expeditions and with an effort of 3,680 buckets-day, 29 M. glirina, three M. saci and one M. emiliae individuals were captured. Adults accounted for 82.8% of M. glirina captures, with a sex ratio of three males for each female. Capture of young and lactating females was seasonal, as both were captured only in the rainy season. We observed three events of M. glirina preying on rodents in pitfall traps, all with the same feeding behavior. We also report an individual climbing a tree at night, including a...