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| Registros recuperados: 69 | |
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| Marfetan,Jorge A; Folgarait,Patricia J. |
| Attine ants are a monophyletic group comprising more than 230 species, distributed exclusively in the New World. All higher Attini ants depend on the cultivation of fungus gardens for food, and those gardens are continuously exposed to alien microorganisms. The present work describes, for the first time, the composition, relative frequency and the richness of the fungal species comprising the mycobiota from the garden of the most abundant Acromyrmex species from different regions of Argentina. We also compared, using a multivariate approach, the mycobiota composition with the purpose of testing two hypotheses: 1) whether mycobiota is defined by the ant species, or 2) whether mycobiota is determined by the geographical region. We found that each fungal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abundance; Acromyrmex; Ascomycota; Fungal communities; Richness; Zygomycetes. |
| Ano: 2017 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2017000400008 |
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| Ribeiro,Daniele Guedes; Silvestre,Rogerio; Garcete-Barrett,Bolívar R.. |
| ABSTRACT Surveying the diversity of stinging wasps (Hymenoptera: Aculeata) provides an important information base to assist in biodiversity conservation and the management of forest reserves, as wasps depend on and maintain the population balance of several other groups of insects. In accordance, this paper presents an altitudinal survey of wasps (Hymenoptera, Aculeata, Vespidae) in Itatiaia National Park, Brazil, which is a protected area covered by Atlantic Forest in a mountainous landscape, with altitudes ranging between 540 and 2791 metres above sea level. Six altitudinal zones were sampled with entomological net, and the abundance and diversity of the species were indicated by zones. Field sampling took 288 h of discontinuous activity, which was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity hotspot; Eumeninae; Polistinae; Richness; Tropical forest. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262019000100022 |
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| Argañaraz,Carina I.; Gleiser,Raquel M.. |
| ABSTRACT Urbanization has a great impact on the diversity of living organisms. Spiders, for example, have been shown to respond negatively (some orb weaving species) and positively (ground dwelling species) to urbanization. The effects of urbanization on crab spiders (Thomisidae) (sit-and-wait predators that generally ambush their prey on flowers and leaves) are not sufficiently known. This paper describes the Thomisidae community that inhabits green patches in a temperate Neotropical city, Cordoba, Argentina, and its surroundings, and ascertains whether there are differences in species richness, abundance and composition between urban and exurban sites. Samples were collected from 30 sites during the summer and spring of 2013 and 2014, using the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arachnid; Biodiversity; City; Richness; Turn-over; Urbanization. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702017000100319 |
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| Andrade,Maria Jaqueline Monte de; Sales,Raul Fernandes Dantas; Freire,Eliza Maria Xavier. |
| Composition, species diversity and resource usage in terms of space and time were evaluated for the lizard community of the Ecological Station of the Seridó (ESEC Seridó), Rio Grande do Norte. An observation area of 150 m × 150 m (2.25 ha) was delimited and surveyed monthly in alternate turns (morning, afternoon and night) for three consecutive days from April to October 2011, covering dry and rainy seasons. Fourteen species belonging to eight families were recorded, being Tropidurus semitaeniatus the most abundant. Seasonality influenced species richness and abundance. Regarding habitat usage, Lygodactylus klugei was the most generalist species, whilePhyllopezus periosus, P. pollicaris and T. semitaeniatus were specialists, showing affinity for rocky... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caatinga; Activity periods; Habitat use; Microhabitat use; Richness; Seasonality. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300199 |
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| Lutinski,Junir Antonio; Lutinski,Cladis Juliana; Iop,Samanta; Mello Garcia,Flávio Roberto. |
| This study evaluated the efficiency as a tool for ant survey of a sampling protocol composed of six methods, and examined the role of environmental features on the efficiency of methods complementarity . We applied them in three environments (pine, eucalyptus and native forest) in the National Forest of Chapecó and the effect of the characteristics of these environments on methods complementarity. The sampling methods were pitfall traps, two types of bait (sardines and glucose), sweep net, entomological umbrella and Malaise trap. The protocol efficiency of the protocol in the ant inventory was evaluated based on rarefaction curves, richness estimators and records of occurrence of ants. The protocol captured the greatest richness on native forest... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bait; Composition; Conservation planning; Diversity; Richness. |
| Ano: 2013 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2013000100005 |
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| Ferreira,MG; Pinho,OC de; Balestieri,JBP; Faccenda,O. |
| This is a study of the population fluctuation of euglossine species, as well as their preferences for scent baits (cineole, eugenol, vanillin and methyl salicylate) in two forest strata (canopy and understory) at the Reserva Florestal do Azulão, a forest fragment located in the municipality of Dourados, MS, Brazil (22°12'S, 54°55'W). We collected a total of 529 males from four genera and eight species. Diversity and equitability for both strata (understory: H' = 1.195 and J' = 0.6139; canopy: H' = 1.193 and J' = 0.6131) did not show a significant difference and a high similarity index was found (P = 87.5%). On the other hand, abundance was substantially higher in the canopy (n = 358) than in the understory (n = 171). From the scents used, eugenol attracted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversity; Equitability; Floral reward; Richness; Seasonality. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000600002 |
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| Virgens,Thieres Marassati das; Rezende,Helder Ricas; Pinto,Israel Souza; Falqueto,Aloísio. |
| Abstract Mosquitoes comprehend a group with a major impact on public health, because some species transmit parasites vertebrate hosts. Comparative studies between preserved environment and disturbed areas provide important epidemiological information, due to the major knowledge on species populational dynamics and the possibility of a contact between vector species and human population. This work aims to characterize and compare the fauna of mosquitoes in the Goytacazes National Forest (GNF) and surrounding area, in the State of Espírito Santo, in Brazil. Collections occurred simultaneously in a preserved environment and in a peridomicile, from 15:00 to 18:00, between July 2008 and May 2009. In each environment, it was used a modified trap of Shannon type.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Disease Vector; Diversity; Richness; Yellow Fever. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000100204 |
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| Cavalheiro,Laísa Wociechoski; Fialho,Clarice Bernhardt. |
| Abstract: The ichthyofauna of streams in the Neotropical region is not yet fully known. This study aims to investigate the ichthyofauna composition of six streams of the Ijuí River sub-basin, Rio Grande do Sul State, inserted in the Uruguay River basin, as to contribute to the knowledge of fishes species richness and distribution in the south of Brazil. Sampling was carried out between July 2015 and May 2016, bimonthly, using the technique of electric fishing to collect the fishes. Spatial variations (per sampled stream) in the ichthyofauna composition were tested with a permutational multivariate analysis of variance. In total, we collected 5,029 individuals from 55 species, 13 families and five orders. From these species, 17 are endemic to the Uruguay... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abundance; Characidae; Heptapteridae; Loricariidae; Richness; Uruguay River basin. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100302 |
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| Pinto,Marcelo Fett; Nabinger,Carlos; Boldrini,Ilsi Iob; Ferreira,Pedro Maria de Abreu; Setubal,Robberson Bernal; Trevisan,Rafael; Fedrigo,Jean Kássio; Carassai,Igor Justin. |
| Few studies have adequately described the floristic and structural features of natural grasslands associated with shallow basalt soils in southern Brazil. This study was carried out on natural grazing land used for livestock production in the municipality of Santana do Livramento, in the Campanha region of the state of Rio Grande do Sul, Brazil. The aim of the study was to describe the floristic and structural diversity of the area. The floristic list obtained comprises 229 plant taxa from 40 botanical families, with a predominance of the families Poaceae (62), Asteraceae (28), Fabaceae (16) and Cyperaceae (12). The estimated diversity and evenness in the community were 3.00 and 0.874, respectively. Bare soil and rock outcrops accounted for 19.3% of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diversity; Richness; Pampa biome; Forage species; Environmental gradient. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100017 |
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| Coelho,Marcel Serra; Almada,Emmanuel D.; Fernandes,G. Wilson; Carneiro,Marco Antonio A.; Santos,Rubens M. dos; Quintino,André V.; Sanchez-Azofeifa,Arturo. |
| Highly diverse forms of galling arthropods can be identified in much of southeastern Brazil's vegetation. Three fragments of a Seasonally Dry Tropical Forest (SDTF) located in the southern range of the Espinhaço Mountains were selected for study in the first survey of galling organisms in such tropical vegetation. Investigators found 92 distinct gall morphotypes on several organs of 51 host plant species of 19 families. Cecidomyiidae (Diptera) was the most prolific gall-inducing species, responsible for the largest proportion of galls (77%) observed. Leaves were the most frequently galled plant organ (63%), while the most common gall morphotype was of a spherical shape (30%). The two plant species, Baccharis dracunculifolia (Asteraceae) and Celtis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodviersity; Biogeography; Host plant family; Herbivory; Insect galls; Richness. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262009000300015 |
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| Almeida-Gomes,Mauricio; Vrcibradic,Davor; Siqueira,Carla C.; Kiefer,Mara C.; Klaion,Thaís; Almeida-Santos,Patrícia; Nascimento,Denise; Ariani,Cristina V.; Borges-Junior,Vitor N.T.; Freitas-Filho,Ricardo F.; van Sluys,Monique; Rocha,Carlos F.D.. |
| We studied the herpetofaunal community from the Atlantic forest of Morro São João, in Rio de Janeiro State, Brazil, and present data on species composition, richness, relative abundance and densities. We combined three sampling methods: plot sampling, visual encounter surveys and pit-fall traps. We recorded sixteen species of amphibians and nine of reptiles. The estimated densities (based on results of plot sampling) were 4.5 ind/100 m2 for amphibians and 0.8 ind/100 m² for lizards, and the overall density (amphibians and lizards) was 5.3 ind/100 m². For amphibians, Eleutherodactylus and Scinax were the most speciose genera with three species each, and Eleutherodactylus binotatus was the most abundant species (mean density of 3.0 frogs/100 m²). The reptile... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Herpetofauna; Atlantic rainforest; Brazil; Richness; Density. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000200007 |
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| Steege, H. ter; Pitman, C.A.; Sabatier, D.; Baraloto, C.; Salomão, R.P.; Guevara, J.E.; Phillips, O.L.; Castilho, C.V.; Magnusson, W.E.; Mollino, J.-F.; Stevenson Diaz, P.R.; Costa , F.; Emilio, T.; Levis, C.; Schietti, J.; Souza, P.; Alonso, A.; Dallmeier, F.; Duque Montoya, A.J.; Fernandez Piedade, M.T.; Maas, P.; Araujo-Murakami, A.; Arroyo, L.; Gribel, R.; Fine, P.V.A.; Peres, C.A.; Toledo, M.; Aymard, G.A.; Baker, T.R.; Cerón, C.; Engel, J.; Petronelli, P.; Henkel, T.W.; Stropp, J.; Zartman, C.E.; Daly, D.; Neill, D.; Silveira, M.; Ríos Paredes, M.; Chave, J.; de Andrade Lima Filho, D.; Hoffman, B.; Møller Jørgensen, P.; Fuentes, A.; Schöngart, J.; Cornejo Valverde, F.; Di Fiore, A.; Jimenez, E.M.; Peñuela Mora, M.C.; Phillips, J.F.; Rivas, G.; Andel, T.R. van; Zent, E.L.; Hildebrand, P. von; Malhi, Y.; Prieto, A.; Rudas, A.; Ruschell, A.; Silva, N.; Vos, V.; Zent, S.; Oliveira, A.A.; Wang, O.; Cano Schutz, A.; Gonzales, T.; Trindade Nascimento, M.; Ramirez-Angulo, H.; Sierra, R.; Tirado , M.; Umaña Medina, M.N.; Heijden, G. van der; Vela, C.I.A.; Vilanova Torre, E.; Young, K.R.; Vriesendorp, C.; Baider, C.; Balslev, H.; Ferreira, C.; Mesones, I.; Torres-Lezama, A.; Urrego Giraldo, L.E.; Zagt, R.; Alexiades, M.N.; Monteagudo, A.; Hernandez, L.; Huamantupa-Chuquimaco, I.; Millikes, W.; Palacios Cuenca, W.; Pauletto, D.; Valderrama Sandoval, E.; Valenzuela Gamarra, L.; Dexter, K.G.; Feeley, K.; Lopez-Gonzalez, G.; Núñez Vargas, P.; Silman, M.R.; Montero, J.C.; Feldpausch, T.R.; Honorio Coronado, E.N.; Killeen, T.J.; Mostacedo, B.; Vasquez, R.; Assis, R.L.; Terborgh, J.; Wittmann, F.; Andrade, A.; Laurance, W.F.; Laurance, S.G.W.; Marimon, B.S.; Marimon , B.-H. Jr.; Célia Guimarães Vieira, I.; Leão Amaral, I.; Brienen, R.; Castellanos, H.; Cárdenas López, D.; Duivenvoorden, J.F.; Mogollón, H.F.; Dionízia de Almeida Matos, F.; Dávila, N.; García-Villacorta, R.. |
| The vast extent of the Amazon Basin has historically restricted the study of its tree communities to the local and regional scales. Here, we provide empirical data on the commonness, rarity, and richness of lowland tree species across the entire Amazon Basin and Guiana Shield (Amazonia), collected in 1170 tree plots in all major forest types. Extrapolations suggest that Amazonia harbors roughly 16,000 tree species, of which just 227 (1.4%) account for half of all trees. Most of these are habitat specialists and only dominant in one or two regions of the basin. We discuss some implications of the finding that a small group of species—less diverse than the North American tree flora—accounts for half of the world’s most diverse tree community. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Hyperdominance; Amazonia; Amazon Basin; Guiana Shield; Trees; Commonness; Rarity; Richness; Tree species. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/459385 |
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| Boneto, Daiane Dias; Batista-Silva, Valéria Flávia; Soares, Juliane Alessandra Cavalieri; Kashiwaqui, Elaine Antoniassi Luiz; Oliveira, Iana Aparecida Dalla Valle de. |
| This study present an inventory of the genera of Odonata-Anisoptera in lotic environments of the Iguatemi River basin, upper Paraná River, Mato Grosso do Sul State, Brazil. Samplings were performed from December 2006 to February 2009 in the Iguatemi River and eight streams of the basin. We collected 739 immature Odonata, distributed in 25 genera and three families; of which one genus represent a new record for the Mato Grosso do Sul State. Progomphus, Tramea, Elasmotemis, Macrothemis, Aphyla and Phylocycla were the most representative genera in the Iguatemi River basin. The genus accumulation curve predicts an increase of new genera for the Iguatemi River basin. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.05.00.00-9 lotic environment; Aquatic macroinvertebrate; Odonatofauna; Richness; Composition. Ecologia. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/30769 |
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| Registros recuperados: 69 | |
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