Artigos - 2020

2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 - 2012 - 2011 - 2010 - 2009 - 1998

Atualizado em 21/10/21

  1. ALMEIDA-CORRÊA, T.; FRAZÃO, L.; COSTA, D. M.; MENIN, M.; KAEFER, I. L. 2020. Effect of environmental parameters on squamate reptiles in an urban forest fragment in central Amazonia. Acta Amazonica v. 50, n. 3, pp. 239-245. DOI: Palavras-chave: amphisbaenians, edge effect, lizards, snakes, urban ecology. Disponível online
  2. CALLE-RENDÓN, B. R.; TOLEDO, J. J. de; MUSTIN, K.; HILÁRIO, R. R. 2020. Drivers of primate richness and occurence in a naturally patchy landscape in the Brazilian Amazon. Biodiversity and Conservation, v. 29, pp. 3369-3391. DOI: Palavas-chave: Amapá, habitat amount, human-modified landscape, primate conservation, savanna, scale of effect. Disponivel online
  3. CAMPOS, Z.; MUNIZ, F.; MOURÃO, G.; MAGNUSSON, W. E. 2020. Responses of crocodilians to construction of a hydroelectric dam on the Madeira River in the Brazilian Amazon. Herpetological Journal, v. 30 (october 2020), pp. 215-221. DOI: Palavras-chave: environmental impact, dam, crocodilians, Amazonia, conservation. Disponível online
  4. CARVALHO, W. D.; MEYER, C. F.; XAVIER, B. S.; MUSTIN, K.; CASTRO, I. J.; SOUSA, S. M. S.; PATHEK, D. B.; CAPAVERDE JR, U, D.; HILÁRIO, R. R.; TOLEDO, J. J. de. 2020. Consequences of Replacing Native Savannahs with Acacia Plantations for the Taxonomic, Functional and Phylogenetic α and ß-Diversity of Bats in the Northern Brazilian Amazon. Frontiers in Ecology and Evolution, v. 8, p. 609214. DOI: 10.3389/FEVO.2020.609214. Palavras-chave: Amazonian ecosystems, Amazonian savannahs, Chiroptera, landscape change, Lavrados de Roraima, non-forest habitats. Disponível online
  5. COSTA, F. R. C.; ZUANON, J. A. S.; BACCARO, F. B.; ALMEIDA, J. S. de; MENGER, J. da S.; SOUZA, J. L. P.; BORBA, G. C.; ESTEBAN, E. J. L.; BERTIN, V. M.; GEROLAMO, C. S.; NOGUEIRA, A.; CASTILHO, C. V. de. 2020. Effects of climate change on Central Amazonian Forests: a two decades synthesis of monitoring tropical biodiversity. Oecologia Australis, v. 24, n. 2, pp. 317-335. DOI: Palavras-chave: community ecology, functional ecology, LTER, long-term ecological sites. Disponível on line
  6. DAMBROS, C. S.; MORAIS, J. W. ; VASCONCELLOS, A.; FRANKLIN, E. 2020. Defining a termite sampling protocol for ecological studies: An effective method to increase statistical power. European Journal of Soil Biology, v. 96, p. 103145. Palavras Chave: Jones & Eggleton protocol, Social insect, species distribution, transect method, Termite survey, Trophic groups, Beta-diversity. Disponível online
  7. DAMBROS, C.; ZUQUIM, G.; MOULATLET, G. M.; COSTA, F. R. C.; TUOMISTO, H.; RIBAS, C. C.; AZEVEDO, R.; BACCARO, F.; BOBROWIEC, P. E. D.; DIAS, M. S.; EMILIO, T.; ESPIRITO-SANTO, H. M. V.; FIGUEIREDO, F. O. G.; FRANKLIN, E.; FREITAS, C.; GRAÇA, M. B.; D"HORTA, F.; LEITÃO, R. P.; MAXIMIANO, M.; MENDONÇA, F. P.; MENGER, J.; MORAIS, J. W.; SOUZA, A. H. N. de; SOUZA, J. L. P.; TAVARES, V. da C.; VALE, J. D. do; VENTICINQUE, E. M.; ZUANON, J.; MAGNUSSON, W. E. 2020. The role of environmental filtering, geographic distance and dispersal barriers in shapping the turnover of plant and animal species in Amazonia. Biodivers Conserv 29, 3609-3634. DOI: https// Palavras-chave: Tropical forest, species distribution, community composition, endemism areas, environmental filtering, Ferns, Termites, Birds, Bats, Gingers, Fish, Palms, Ants, Butterflies. Disponível online.
  8. DORIA, C. R. C.; ATHAYDE, S.; LIMA, H. M. de; CARVAJAL-VALLEJOS, F. M.; DUTKA-GIANELLI, J. 2020. Challenges for the governance of small-scale fisheries on the Brazil-Bolivia transboundary region. Society & Natural Resources. DOI: 10.1080/08941920.2020.1771492. Palavras-chave: Amazon, common-pool resources, fisheries governance, inland fisheries, riverine communities, transboundary fisheries systems. Disponível online
  9. DORIA, C. R. C.; DUTKA-GIANELLI, J.; SOUSA, S. T. B. de; CHU, J.; GARLOCK, T. M. 2020. Understanding impacts of dams on the small-scale fisheries of the Madeira River through the lens of the Fisheries Performance Indicators. Marine Policy. DOI: Palavras-chave: Amazon, Fisheries, Development, Riverine communities, Fishery evaluation indicators. Disponível online
  10. ESTEBAN, E. J. L.; CASTILHO, C. V.; MELGAÇO, K. L.; COSTA, F. R. C. 2020. The outher side of droughts: wet extremes and topography as buffers of negative drought effects in an Amazonian forest. New Phytologist, v. earlyv, p. 1, 2020. Disponível em
  11. FADINI, S. R. M. C.; BARBOSA, R. I.; RODE, R.; CORRÊA, V.; FADINI, R. 2020. Above-ground biomass estimation for a shrubby mistletoe in an Amazonian savanna. Journal of Tropical Ecology, 36(1), 6-12. DOI:10.1017/S0266467419000294. Palavras-chave: Epiphytes, fire-prone savanna, hemiparasites, host-parasite interactions. Disponível online
  12. FARIAS, H. L. S.; SILVA, W. R.; PERDIZ, R. de O.; CITÓ, A. C.;  CARVALHO, L. C. da S.; BARBOSA, R. I. 2020. Dataset on wood density of trees in ecotone forests in Northern Brazilian Amazonia. Dataset on wood density of trees in ecotone forests in Northern Brazilian Amazonia. Data in Brief, v. 30: June 2020, 105378. DOI: Palavras Chave: Specific gravity, Forest ecology, Tropical forest, Tree, Wood technology. Disponível online
  13. FERRÃO, M.; MORAVEC, J.; HANKEN, J.; LIMA, A. P. 2020. A new species of Dendropsophus (Anura, Hylidae) from southwestern Amazonia with a green bilobate vocal sac. ZooKeys, 942: 77-104. DOI: Palavras-chave: Amphibia, advertisement call, Amazonian biodiversity, Dendropsophus microcephalus species group, Dendropsophus bilobatus sp. nov., integrative taxonomy, morphology, upper Madeira River. Disponível online
  14. FERREIRA, A. S.; LIMA, A. P.; JEHLE, R.; FERRÃO, M.; STOW, A. 2020. The influence of environmental variation on the genetic structure of a poison frog distributed across continuous Amazonian rainforest. Journal of Heredity, 2020, pp. 457-470. DOI: 10.1093/hered/esaa034. Palavras-chave: RADseq, genetic clusters, landscape genetics, Amazonia, amphibians. Disponível online
  15. FONSÊCA, K. A.; FIGUEIREDO, D. G.; CELLA-RIBEIRO, A.; DORIA, C. R. da C. 2020. Bioecologia reprodutiva e alimentar do peixe elétrico Sternarchella calhamazon (Gymnotiformes) da bacia do rio Madeira. Revista Brasileira de Ciências da Amazônia, v. 9, n. 3, pp. 90-106. ISSN 2317-5729 (edição online). Palavras-chave: Amazônia, ecologia trófica, peixe bentônico, ecologia reprodutiva. Disponível online
  16. GADELHA, S. de S.; COSTA, G. da S.; ALMEIDA e SILVA, A. de. 2020. New Braconidae (Hymenoptera: Ichneumonoidea) records from Cuniã Ecological Station, Porto Velho, Rondônia, Brazilian Western Amazon. Rev. Bras. de Ciências da Amazônia 9(3): 36-45. Palavras-chave: Parasitoids, Microgastrinae, Doryctinae, diversity. Disponível online
  17. JACOBI, C. M.; VILLAMARÍN, F.; CAMPOS-SILVA, J. V.; JARDINE, T.; MAGNUSSON, W. E. 2020. Feeding of Arapaima sp.: integrating stomach contents and local ecological knowledge. J Fish Biol. 2020 Jul;97(1):265-272. DOI: 10.1111/jfb.14372. Palavras-chave: Amazon, diet, ethnobiology, ichthyology, predatorDisponível online
  18. JORGE, R. F.; FERRÃO, M.; LIMA, A. P. 2020. Out of Bond: A new threatened harlequin toad (Bufonidae, Atelopus) from the outer borders of the Guiana shield in Central Amazonia described through integrative taxonomy. Diversity 12, 310. DOI: 10.3390/d1208310. Palavras-chave: conservation, genetics, integrative taxonomy, morphology, vocalization. Disponível online
  19. JORGE, R. F.; MAGNUSSON, W. E.; SILVA, D. A. da; POLO, E. M.; LIMA, A. P. 2020. Urban growth threatens the lowland Amazonian Manaus harlequin frog which represents and evolutionarily significant unit within the genus (Amphibia: Anura: Bufonidae). Journal of Zoological Systematics and Evolutionary Research, v. 1, p. jzs. 12390-11. DOI:10.1111/jzs.12390. Palavras-chave: Amazonia Central, heterogeneidade ambiental, risco de extinção, modificação ambiental, sapo arlequim. Disponível online
  20. LIMA, J. M.; CASTRO, A. B.; LIMA, A. P.; MAGNUSSON, W. E.; LANDEIRO, V. L.; FADINI, R. F. 2020. Influência do regime de queimadas sobre a riqueza e composição florística de uma savana isolada na Amazônia - PELD Oeste do Pará. Oecologia Australis, v. 24, n. 2, pp. 301-316. DOI: Palavras-chave: Cerrado amazônico, mosaico de vegetação, pesquisa ecológico de longa duração. Disponível on line
  21. LIMA, M. A. L.; DORIA, C. R.; CARVALHO, A. R.; ANGELINI, R. 2020. Fisheries and trophic structure of a large tropical river under impoundment. Ecologial Indicators, v. 113, June 2020, 106162. DOI: Palavras Chave: Fisheries management, Trophic impact matrix, Damming, Amazonian River, Ecopath with Ecosim. Disponível online
  22. LIMA, A. P.; FERRÃO, M.; SILVA, D. L. da. 2020. Not as widespread as throught: Integrative taxonomy reveals cryptic diversity in the Amazonian nurse frog Allobates tinae Melo-Sampaio, Oliveira and Prates, 2018 and description of a new species. Journal of Zoological Systematics and Evolutionary Research, v. 58, n. 4, pp. 1173-1194. DOI: 10.1111/jzs.12406. Palavras-chave: Amazonia, bioacoustics, egg coloration, interfluve purus, Madeira, morphology, tadpoles. Disponível online
  23. LOURENÇO, I. H.; ANJOS, M. R.; BARREIROS, J. P. S. R. 2020. Low-cost technology for fish monitoring applied to the fishing of two species of pacu in Amazonas, Brazil. Boletim do Instituto de Pesca (Online), v. 46, pp. 1-6. Palavras-chave: Sul do Amazonas, pesca Artesanal, manejo Pesqueiro. Disponível online
  24. MAGNUSSON, W. E. 2020. Environmental Forum, v. 37, Issue 3, May-June 2020, pp. 27-31. 
  25. MAGNUSSON, W. E.; ROSA, C.; LAYME, V. M. G.; GHIZONI JR., I. R.; LIMA, A. P. 2020. Local effects of global climate on a small rodent Necromys lasiurus. Journal of Mammalogy, XX(X):1-7, 2020. DOI: 10.1093/jmammal/gyaa140. Palavras-chave: Amazon, climate change, metapopulation, population fluctuation, small mammals, Southern Oscillation Index. Disponível online
  26. MATOS, L. C. N. de; SANTANA, F. D.; BACCARO, F. B. 2020. Relações alométricas entre os tamanhos de sementes artificiais removidas e de formigas em um fragmento florestal na Amazônia Central. Bol. Mus. Para. Emílio Goeldi, Cienc. Nat., Belém, v. 15, n. 1, pp. 155-164, jan-abr. 2020. Palavras-chave: Comportamento, Mirmecocoria, Mutualismo, Floresta Tropical. Disponível online
  27. MOTA. E. P.; KAEFER, I. L.; NUNES, M. da S.; LIMA, A. P.; FARIAS, I. P. 2020. Hidden diversity within the broadly distributed Amazonian giant monkey frog (Phyllomedusa bicolor: Phyllomedusidae). Amphibia-Reptilia, n. 41, pp. 439-359. DOI: 10.1163/15685381-bja10003. Palavras-chave: cryptic diversity, genetic diversity, Phyllomedusidae, phylogeography, tropical rainforest. Disponível online
  28. PEIXOTO, G. M.; De Fraga, R.; ARAÚJO, M. C.; KAEFER, I. L.; LIMA, A. P. 2020. Hierarchical effects of historical and environmental factors on lizard assemblages in the upper Madeira River, Brazilian Amazonia. PLoS ONE 15(6): e0233881. DOI: Disponível online
  29. PENHACEK, M.; ANJOS, S.; OLIVEIRA, E.; HERNÁNDEZ-RUZ, E. J.; RODRIGUES, L. R.; GUERRA, V.; RODRIGUES, D. 2020. First record of Vitreorana ritae (Anura, Centrolenidae) for southern Amazonia inferred from molecular, reproductive and acoustic evidence. Caldasia, 42(2): xx-xx, Julio-diciembre. DOI: Palavras-chave: Acoustic parameters, Amazon-Cerrado ecotone, glass frog, intraspecific genetic variation. Disponível online
  30. PEQUENO, P.; MENDEL, B.; ROSA, C.; BOSHOLN, M.; SOUZA, J. L.; BACCARO, F.; BARBOSA, R.; MAAGNUSSON, W. 2020. Air transportation, population density and temperature predict the spread of COVID-19 in Brazil. PeerJ 8:e9322. DOI: Palavras-chave: Biogeography, ecology, epidemiology, Science and Medical Education, climate, coronavirus, health, pandemic. Disponível on line
  31. ROCHA, E. X.; SHIETTI, J,; GEROLAMO, C. S.; BURNHAM, R. B.; NOGUEIRA, A. 2020. Higher rates of liana regeneration after canopy fall drives species abundance patterns in central Amazonia. Journal of Ecology, v. 00, p. 1–11. DOI: 10.1111/1365-2745.13345. Palavras Chave: adventitious roots, Amazonia, Bignoniaceae, canopy gap, disturbance, forest dynamic, resprouters, treefall. Disponível online
  32. ROJAS, D.; LIMA, A. P.; MOMIGLIANO, P.; SIMÕES, P. I.; DUDANIEC, R. Y.; AVILA-PIRES, T. C. S.; HOOGMOED, M. S.; BITAR, Y. O. da C.; KAEFER, I. L.; AMÉZQUITA, A.; STOW, A. 2020. The evolution of polymorphism in the warning coloration of the Amazonian poison frog Adelphobates galactonotus. Heredity (2020): v. 124, pp. 439-456. DOI: Disponível online
  33. ROSA, C. Savannah for sale: is there hope for neotropical biodiversity on private, Brazilian properties? Animal Conservation 24(2021), pp. 1-2. DOI: 10.1111/acv.12617. Disponível online
  34. ROSA, C.; BACCARO, F.; CRONEMBERGER, C.; HIPÓLITO, J.; BARROS, C. F.; RODRIGUES, D. de J.; NECKEL-OLIVEIRA, S.; OVERBECK, G. E.; DRECHSLER-SANTO, E. R. et al. 2021. The program of biodiversity Research in Brazil: The role of regional networks for biodiversity knowledge, dissemination, and conservation. An Acad Bras Cienc. (2021) 93(2),  e20201604, pp. 11-19. Disponível online
  35. SALES, N. G.; KAIZER, M. da C.; COSCIA, I.; PERKINS, J. C.; HIGHLANDS, A.; BOUBLI, J. P.; MAGNUSSON, W. E.; SILVA, M. N. F. da; BENVENUTO, C.; McDEVITT, A. D. 2020. Assessing the potential of environmental DNA metabarcoding for monitoring Neotropical mammals: a case study in the Amazon and Atlantic Forest, Brazil. Mammal Review (2020), Short Communication, p. 1-5. DOI: Palavras Chave: Brazil, camera traps, Critically Endangered, eDNA, mammals, river, terrestrial. Disponível online
  36. SANTANA, M. D. F.; VARGAS-ISLA, R.; NOGUEIRA, J. da C.; ACCIOLY, T.; SILVA, B. D. B. da; COUCEIRO, S. R. M.; BASEIA, I. G.; ISHIKAWA, N. K. 2020. Obtaining monokaryotic and dikaryotic mycelial cultures of two Amazonian strains of Geastrum (Geastraceae, Basidiomycota). Acta Amazonica, v.  50, n. 1, p. 61 - 67. DOI: Palavras Chave: earthstars; gasteroid fungus; Geastrum lloydianum; Geastrum subiculosum; mycelial growth. Disponível online
  37. SANTOS, E. A. dos; MEDEIROS, M. B.; FERREIRA, E. J. L.; SIMON, M. F.; OLIVEIRA, W. L.; COSTA, F. R. C. 2020. Palm distribution patterns in the southwestern Brazilian Amazon: Impact of a large hydroelectric dam. Forest Ecology and Management, v. 463, 118032. DOI: Palavras Chave: Arecaceae, Campinarana, Environmental impacts, Extreme weather events, Madeira River, Várzea forests, Terra-firme forests. Disponível online
  38. SILVA, E. P. da; BORBA, G. C.; MAGALHÃES, C.; ZUANON, J.; MAGNUSSON, W. E. 2020. Habitat segregation among freshwater shrimp species in an Amazonian rainforest stream system. Freshwater Biology 2020; 65: p. 674-687. DOI: 10.1111/fwb.13458. Palavras-chave: apparent competition, habitat dimensions, predator composition, resource partitioning, catchment. Disponível online
  39. SILVA, R. C.; SILVEIRA, M.; VERDE, R. S. 2020. Vertical stratification of phyllostomid bats assemblage (Chiroptera, Phyllostomidae) in a florest fragment in Brazilian Southwestern Amazon. Neotropical Biology and Conservation 15(2): pp. 107-120. DOI: Palavras-chave: Chiroptera, diversity, feeding guilds, habitat use, species composition. Disponível online
  40. SINHORIN, A. P.; KERKHOFF, J.; OGLIO, E. L. D.; RODRIGUES, D. de J.; VASCONCELOS, L. G. de; SINHORIN, V. D. G. 2020. Chemical profile of the paratoid gland secretion of the Amazonian toad (Rhinella margaritifera). Toxicon 182, pp. 30-33. DOI: Palavras-chave: Bufonidae, Bufadienolides, Amazonian anuranfauna. Disponível online
  41. SILVESTRE, S. M.; CALLE-RÉNDON, B. R.; TOLEDO, J. J. de; HILÁRIO, R. R. 2020. Drivers of hunting in the savannahs of Amapá: implications for conservation, ORYX, v. 54, pp. 1-7. DOI: Palavras-chave: Amazon, Amazonian savannah, bushmeat, Cerrado of Amapá, commercial hunting, game species, subsistence hunting, wild meat. Disponível online
  42. SOUSA, T. R.; SCHIETTI, J.; COELHO DE SOUZA, F.; ESQUIVEL-MUELBERT, A.; RIBEIRO, I. O.; EMÍLIO, T.; PEQUENO, P. A. C. L.; PHILLIPS, O.; COSTA, F. R. C. 2020. Palms and trees resist extreme drought in Amazon forests with shallow water tables. Journal of Ecology. DOI: 10.1111/1365-2745.13377. Palavras Chave: water table, groundwater, Arecaceae, drought, extreme events, forest dynamics, tropical forest, climate change. Disponível online
  43. SOUZA, E.B.R., SOUSA-JÚNIOR, P.T., VASCONCELOS, L.G., RODRIGUES, D.J., SINHORIN, V.D.G., KERKHOFF, J., PELISSARI, S.R.N., SINHORIN, A.P., 2020. Comparative study of the chemical profile of the parotoid gland secretions from Rhaebo guttatus from different regions of the Brazilian Amazon. Toxicon 179, pp. 01-106. DOI: Palavras-chave: Rhaebo guttatus, Amazon, Bufonidae, Methanolic extracts, chemical profile. Disponível online
  44. SOUZA, J. L. P.; FERNANDES, I. O. 2020. Do spatial and temporal scales affect the efficiency of surrogates in ant monitoring on the hydroelectric power-plant area in Brazilian Amazon? Ecological Indicators, DOI: Palavras-chave: Amazon, Madeira River, Species occurence, Standardized sampling protocol, Tropical forest. Disponível online
  45. SOUZA, M. C. de; FADER, A. A. C.; SILVEIRA, M.; LIESENFELD, M. V. A. 2020. Diodia kuntzei K. Schum (Rubiaceae, Spermacoceae): a new record for the state of Acre, Brazil. Check List 16(3): pp. 675-679. DOI: Palavras-chave: Alto Juruá flora, geographic distribution, taxonomy. Disponível online
  46. ter STEEGE, H.; PRADO, P. I.; LIMA, R. A. F. de; POS, E.; COELHO, L. de S.; LIMA FILHO, D. de A.; SALOMÃO, R. P.; AMARAL, I. L.; MATOS, F. D. de A.; CASTILHO, C. V.; PHILLIPS, O. L.; GUEVARA, J. E.; CARIM, M. de J. V.; LÓPEZ, D. C.; MAGNUSSON, W. E. et al. 2020. Biased-corrected richness estimates for the Amazonian tree flora. Scientific Reports (2020) 10:10130. DOI: Disponível online
  47. TODESCHINI, F.; TOLEDO, J. J.; ROSALINO, L. M. C.; HILÁRIO, R. R. 2020. Niche differentiation mechanisms among canopy frugivores and zoochoric trees in the northeastern extreme of the Amazon. Acta Amazonica, v. 50, pp. 263-272. DOI: Palavras-chave: Amapá National Forest, frugivory, phenology, seed dispersal, tropical rainforest. Disponível online
  48. TORRALVO, K.; MAGNUSSON, W. E.; DURGANTE, F. 2020. Efectiveness of Fourier transform near-infrared spectroscopy spectra for species identification of anurans fixed in formaldehyde and conserved in alcohol: A new tool for integrative taxonomy. Journal of Zoological Systematics and Evolutionary Research, p. 1-14. DOI: 10.1111/jzs.12442. Palavras-chave: Amazonian frog, near-infrared spectroscopy, species identification, taxonomy, methods, zoological collections. Disponível online
  49. TORRES, M. T.; SOUZA, J. L.; BACCARO, F. B. 2020. Distribution of epigeic and hypogeic ants (Hymenoptera: Formicidae) at ombrophilous forests in the Brazilian Amazon. Sociobiology, v. 67, pp. 186-200. Palavras-chave: Amazonia, Community ecology, Environment gradient, Stratification, Subterranean. Disponível online
  50. TOURINHO, A. L.; BECHIMOL, M.; PORTO, W.; PERES, C. A.; STORCK'TONON, D. 2020. Marked composition changes in harvestmen assemblages in Amazonian forest islands induced by a mega dam. Insect Conservation and Diversity, v. 13, pp. 432-444. DOI: Palavras-chave: Conservation biology, landscape ecology, habitat fragmentation, hydroelectric dams, environmental quality, indicators species. Disponivel online
  51. VALENCIA-AGUILAR, A.; RODRIGUES, D. de J.; PRADO, C. P. A. 2020. Male care status influences the risk-taking decisions in a glassfrog. Behavioral Ecology and Sociobiology 74:84. DOI: Palavras-chave: Anura, Hyalinobatrachium cappellei, Time allocation, Paternal care, Predation risk, Offspring survival. Disponível online
  52. VICENTE, R. E.; SILVA, I. V. da; IZZO, T. J. 2020. Jardins de formigas: qual o estado do conhecimento sobre essas interações mutualísticas entre formigas e plantas? Bol. Mus. Para. Emílio Goeldi, Cienc. Nat., Belém, v. 15, n. 1, pp. 55-63, jan. - abr. 2020. Palavras-chave: Camponotus femoratus, Crematogaster levior, dominância, mutualismo, parabiose. Disponivel online