Acosta, L.E. & G. Machado. 2007. Diet and foraging. Pp. 309-338, “Harvestmen: The Biology of Opiliones”, Ricardo Pinto da Rocha, Glauco Machado & Gonzalo Giribet (eds.), Harvard University Press, Massachusetts.
Machado, G. & R. Macías-Ordóñez. 2007. Social behavior. Pp. 400-413, “Harvestmen: The Biology of Opiliones”, Ricardo Pinto da Rocha, Glauco Machado & Gonzalo Giribet (eds.), Harvard University Press, Massachusetts.
Machado, G. & R. Macías-Ordóñez. 2007. Reproduction. Pp. 414-454, “Harvestmen: The Biology of Opiliones”, Ricardo Pinto da Rocha, Glauco Machado & Gonzalo Giribet (eds.), Harvard University Press, Massachusetts. |
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Osses, F.; E.G. Martins & G. Machado. 2008. Oviposition site selection by the neotropical bromeliad-dweller harvestman Bourguyia hamata (Arachnida: Opiliones). Journal of Ethology,26:233–241.
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Machado, G. & A.M. Pomini. 2008. Chemical and behavioral defenses of the neotropical harvestman Camarana flavipalpi (Arachnida: Opiliones). Biochemical Systematics and Ecology, 36: 369-376.
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Bonato, V.; E.G. Martins; G. Machado; C.Q. Da-Silva & S.F. dos Reis. 2008. Density, habitat use, and daily, seasonal, and reproductive activity of the armadillos Cabassous unicinctus and Euphractus sexcinctus (Xenarthra: Dasypodidae) in a Brazilian cerrado. Journal of Mammalogy, 89: 168–174.
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Machado, G. 2007. Maternal or paternal egg guarding? Revisiting parental care in triaenonychid harvestmen (Opiliones). The Journal of Arachnology, 35: 202–204.
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Araújo, M.S.; S.F. dos Reis; A.A. Giaretta; G. Machado & D.I. Bolnick. 2007. Individual-level diet variation in four frogs (Leptodactylidae) of the Brazilian savannah. Copeia, 2007: 855–865.
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Buzatto, B.A.; G.S. Requena; E.G. Martins & G. Machado. 2007. Effects of maternal care on the lifetime reproductive success of females in a neotropical harvestman. Journal of Animal Ecology, 76: 937–945.
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Moya, J.; K.C. Mancini; G. Machado & H. Dolder. 2007. Sperm ultrastructure of the neotropical harvestman Iporangaia pustulosa (Arachnida: Opiliones): comparative morphology, functional aspects, and implications for sexual selection. Arthropod Structure and Development, 36: 53-62.
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Araújo, M.S.; D.I. Bolnick; G. Machado; A.A. Giaretta & S.F. dos Reis. 2007. Using  stable isotopes to quantify individual-level diet variation. Oecologia, 152: 643–654.
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Requena, G.S.; B.A. Buzatto & G. Machado. 2007. Habitat use, phenology, and gregariousness of the neotropical psocopteran Cerastipsocus sivorii (Psocoptera: Psocidae). Sociobiology, 49: 197-214.
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Machado, G. 2007. Maternal or paternal egg guarding? Revisiting parental care in triaenonychid harvestmen (Opiliones). The Journal of Arachnology, 35: 202–204.
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Almeida-Neto, M.; G. Machado; R. Pinto-da-Rocha & A.A. Giaretta. 2006. Harvestman species distribution along three neotropical elevational gradients: an alternative rescue effect to explain Rapoport’s rule? Journal of Biogeography, 33: 361–375.
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Machado, G. & J. Warfel. 2006. First case of maternal care in the family Cranaidae (Opiliones: Laniatores). The Journal of Arachnology, 34: 269-272.
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Dias, S.C. & G. Machado. 2006. Habitat use of the whip spider Heterophrynus longicornis (Amblypygi: Phrynidae) in Central Amazon. The Journal of Arachnology, 34: 540–544.
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Machado, G.; P.C. Carrera; A.M. Pomini & A.J. Marsaioli. 2005. Chemical defense in harvestmen (Arachnida: Opiliones): do benzoquinones deter invertebrate and vertebrate predators? Journal of Chemical Ecology, 31: 2519-2539.
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Machado, G.; G.S. Requena; B.A. Buzatto; F. Osses & L.M. Rossetto. 2004. Five new cases of paternal care in harvestmen (Arachnida: Opiliones): implications for the evolution of male guarding in the neotropical family Gonyleptidae. Sociobiology, 44: 577-598.
Christianini, A.V. & G. Machado. 2004. Induced biotic responses to herbivory and associated cues in the Amazonian ant-plant Maieta poeppigii (Melastomataceae). Entomologia Experimentalis et Applicata, 112: 81-88.
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Pereira, W.; A. Elpino-Campos; K. Del Claro & G. Machado. 2004. Behavioral repertory of the neotropical harvestman Ilhaia cuspidata (Opiliones: Gonyleptidae). The Journal of Arachnology, 33: 22-30.
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Martins, E.G.; V. Bonato; G. Machado; L.S. Rocha & R. Pinto-da-Rocha. 2004. Description and ecology of a new sun-spider(Arachnida: Solifugae) from the Brazilian cerrado. Journal of Natural History, 38: 2361-2375.
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Melo, A.S.; R.A.S. Pereira; A.J Santos; G.J. Shepherd; G. Machado; H.F. Medeiros & R.J. Sawaya. 2003. Comparing species richness among assemblages using sample units: why not use extrapolation methods to standardize different sample sizes? Oikos, 101: 398-410.
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Hara, M.R.; P. Gnaspini & G. Machado. 2003. Male egg-guarding behavior in the neotropical harvestman Ampheres leucopheus (Opiliones: Gonyleptidae). The Journal of Arachnology, 31: 441-444.
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Machado, G.; V. Bonato & P.S. Oliveira. 2002. Alarm communication: a new function for the scent gland secretion in harvestmen (Arachnida: Opiliones). Naturwissenschaften, 89: 357-360.
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Machado, G. 2002. Maternal care, defensive behavior, and sociality in neotropical Goniosoma harvestmen (Arachnida: Opiliones). Insectes Sociaux, 49: 388-393.
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Machado, G. & P.S. Oliveira. 2002. Maternal care in the neotropical harvestman Bourguyia albiornata (Arachnida: Opiliones): oviposition site selection and egg protection. Behaviour, 139: 1509-1524.
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Pinto-da-Rocha, R.; G. Machado & P. Weygoldt. 2002. Two new species of Charinus Simon, 1892 from Brazil with biological notes (Arachnida; Amblypygi; Charinidae). Journal of Natural History, 36: 107-118.
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Machado, G. & A. Chagas Jr. 2002. Three new cases of possible maternalism in neotropical centipedes (Chilopoda: Scolopendromorpha). Entomological News, 113: 37-40.
Machado, G.; A.A. Giaretta & K.G. Facure. 2002. Reproductive cycle of a population of the guaru Phallocerus caudimaculatus (Poeciliidae) in Southeastern Brazil. Studies on Neotropical Fauna and Environment, 37: 15-18.
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Machado, G. & R.L.G. Raimundo. 2001. Parental investment and the evolution of subsocial behaviour in harvestmen (Arachnida: Opiliones). Ethology, Ecology and Evolution, 13: 133-150.
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Machado, G. & A.V.L. Freitas. 2001. Larval defense against ant predation in the neotropical buterfly Smyrna blomfildia (Nymphalidae: Coloburini). Ecological Entomology, 26: 436-439.
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Machado, G. & D.M. Vital. 2001. On the occurrence of epizoic cyanobacteria and liverworts on a neotropical harvestman (Arachnida: Opiliones). Biotropica, 33: 535-538.
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Elpino-Campos, A.; W. Pereira; K. Del-Claro & G. Machado. 2001. Behavioural repertory and notes on natural history of the neotropical harvestman Discocyrtus oliverioi (Opiliones: Gonyleptidae). Bulletin of British Arachnological Society, 12: 144-150.
Machado, G.; A.A. Giaretta & R. Pinto-da-Rocha. 2001. Notes on the taxonomy and biology of the neotropical harvestman Goniosoma catarina sp.n. (Opiliones: Gonyleptidae). Revista Ibérica de Aracnología, 4: 17-22.
Machado, G. & J. Vasconcellos-Neto. 2001. Sperm transfer behavior in the neotropical scorpion Thestylus glazioui (Scorpiones: Bothriuridae). Revista de Etologia, 2: 63-66.
Machado, G.; R.L.G. Raimundo & P. S. Oliveira. 2000. Daily activity schedule, gregariousness and defensive behaviour of the neotropical harvestman Goniosoma longipes (Arachnida: Opiliones: Gonyleptidae). Journal of Natural History, 34: 587-596.
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Machado, G. & M.A. Pizo. 2000. The use of fruits by the neotropical harvestman Neosadocus variabilis (Laniatores: Gonyleptidae). The Journal of Arachnology, 28: 357-360.
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Machado, G. 2000. Maternal care in the neotropical centipede Otostigmus scabricauda (Chilopoda: Scolopendromorpha). Entomological News, 111: 250-254.
Machado, G. & P.S. Oliveira. 1998. Reproductive biology of the neotropical harvestman Goniosoma longipes (Arachnida: Opiliones: Gonyleptidae): mating and oviposition behaviour, brood mortality, and parental care. Journal of Zoology, 246: 359-367.
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Machado, G. & C.H.F. Vasconcelos. 1998. Multi-species aggregations in neotropical harvestmen (Opiliones: Gonyleptidae). The Journal Arachnology, 26: 89-391.
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