artigoscapítulos de livros

Artigos aceitos

Silva MS, Willemart RH, Carbayo F. Sticky flatworms (Platyhelminthes) kill armored harvestmen (Arachnida, Opiliones) but are not immune to the prey´s weapons. Journal of Zoology.

Artigos publicados

2018. Gainett G, Sharma P. Giribet G, Willemart RH. Putative adhesive setae on the walking legs of the Paleotropical harvestman Metibalonius sp. (Arachnida: Opiliones: Podoctidae). Journal of Arachnology 46: 62-68.

2018. Segovia JMG, Neco LC,  Willemart RH. On the habitat use of the Neotropical whip spider Charinus asturius Pinto-Da-Rocha, Machado and Weygoldt, 2002 (Arachnida: Amblypygi). Zoologia 35: 1-6.

2017. Gainett G, Michalik P, Müller CHG, Giribet G, Talarico G, Willemart RH. Putative thermo-/hygroreceptive tarsal sensilla on the sensory legs of an armored harvestman (Arachnida, Opiliones). Zoologischer Anzeiger 270: 81-97.

2017. Fernandes NS, Stanley E, Costa FG, Toscano-Gadea CA, Willemart RH. Chemical sex recognition in the harvestman Discocyrtus prospicuus (Arachnida: Opiliones). Acta Ethologica 20: 215-221. DOI: 10.1007/s10211-017-0264-5.

2017. Pagoti GF, Penaflor MF, Marabesi AB, Bento JMS, Willemart RH. Proximate factors and potential benefits influencing selection of Psychotria suterella for shelter by the harvestman Jussara sp. (Arachnida, Opiliones). Entomologia Experimentalis et Applicata 163: 241-250. DOI: 10.1111/eea.12570.

2017. Gainnet G, Michalik P, Muller C, Giribet G, Talarico G, Willemart RH. Ultrastructure of chemoreceptive tarsal sensilla in an armored harvestman and evidence of olfaction across Laniatores (Arachnida, Opiliones). Arthropod Structure & Development 46: 178–195.http://dx.doi.org/10.1016/j.asd.2016.12.005

2016. Ramin AA, Willemart RH, Gnaspini P. Changes in nymphal morphometric values and tarsal microstructures during postembryonic development in the Neotropical harvestman Heteromitobates albiscriptus (Opiliones: Gonyleptidae). Journal of Arachnology 44: 330-346 http://dx.doi.org/10.1636/M15-83.1

2016. García LF, Franco V, Robledo LE, Viera C, Lacava M, Willemart RH. The predation strategy of the recluse spider Loxosceles rufipes (Lucas, 1834) against four prey species. Journal of Insect Behavior 29: 515–526. 10.1007/s10905-016-9578-9.

2016. Costa TM, Hebets EA, Melo D, Willemart RH. Costly learning: preference for familiar food persists despite negative impact on survival. Biology Letters 12: 20160256. http://dx.doi.org/10.1098/rsbl.2016.0256

2016. Costa TM, Silva NFS, Willemart RH. Prey capture behavior in three Neotropical armored harvestmen (Arachnida, Opiliones). Journal of Ethology 34: 183-190. DOI 10.1007/s10164-016-0464-x

2016. Dias JM, Willemart RH. Do sexually dimorphic glands in the harvestman Gryne perlata (Arachnida, Opiliones) release contact pheromones during mating? European Journal of Entomology 113: 184-191. doi: 10.14411/eje.2016.022

2015. Pinto-da-Rocha R, Willemart RH. O estudo dos opiliões sulamericanos. Boletim Informativo da Sociedade Brasileira de Zoologia XXXVII, 115: 6-9.

2015. Segovia JMG, Hara MR, Pagoti GF, Sannomiya M, Santos DYAC, Willemart RH. The scent glands of the Neotropical harvestman Discocyrtus pectinifemur (Arachnida: Opiliones: Gonyleptidae): morphology, behavior and chemistry. Journal of Chemical Ecology 41: 716-723. DOI 10.1007/s10886-015-0612-8.

2015. Silva NFS, Willemart RH. Foraging, oviposition sites and notes on the natural history of the harvestman Heteromitobates discolor (Opiliones, Gonyleptidae). Biota Neotropica 15: 1–5. http://dx.doi.org/10.1590/1676-06032015018614

2015. Pagoti GF, Willemart RH. Strong seasonality and clear choice of resting plant in a Neotropical harvestman (Arachnida, Opiliones). Journal of Arachnology 43: 207-213. http://dx.doi.org/10.1636/0161-8202-43.2.207

2015. Segovia JMG, Del-Claro K, Willemart RH. Defences of a Neotropical harvestman against different levels of threat by the recluse spider. Behaviour 152: 757-773. DOI: 10.1163/1568539X-00003252

2015. Murayama GP, Willemart RH. Mode of use of sexually dimorphic glands in a Neotropical harvestman (Arachnida, Opiliones) with paternal care. Journal of Natural History 49: 1937-1947. DOI: 10.1080/00222933.2015.1006283

2015. Segovia JMG, Del-Claro K, Willemart RH. Delicate fangs, smart killing: the predation strategy of the recluse spider. Animal Behaviour 101: 169-177. http://dx.doi.org/10.1016/j.anbehav.2014.12.025

2014. Dias BC, Souza ES, Hara MR, Willemart RH. Intense leg tapping behavior by the harvestman Mischonyx cuspidatus (Gonyleptidae): An undescribed defensive behavior in Opiliones? Journal of Arachnology 42: 123-125. doi: http://dx.doi.org/10.1636/Hi12-06.1

2014. Fernandes N, Willemart RH. Neotropical harvestmen (Arachnida, Opiliones) use sexually dimorphic glands to spread chemicals in the environment. Comptes Rendus Biologie 337: 69-75. doi:10.1016/j.crvi.2014.01.004

2014. Gainett G, Sharma PP, Pinto-da-Rocha R, Giribet G, Willemart RH. Walk it off: Predictive power of appendicular characters toward inference of higher-level relationships in Laniatores (Arachnida: Opiliones). Cladistics 30: 120-138.  http://onlinelibrary.wiley.com/doi/10.1111/cla.12029/abstract CAPA DA REVISTA

2013. Santos GC, Hogan JA, Willemart RH. Associative learning in a harvestman (Arachnida, Opiliones). Behavioural Processes 100:64-66. http://dx.doi.org/10.1016/j.beproc.2013.07.021

2013. Willemart RH, Taques BG. Morfologia e ecologia sensorial em aracnídeos troglóbios: perspectivas para a espeleobiologia brasileira. Revista da Biologia IBUSP 10: 46-51. http://www.ib.usp.br/revista/

2013. Costa TM, Willemart RH. First experimental evidence that a harvestman (Arachnida,Opiliones) detects odors of non-rotten dead prey by olfaction. Zoologia 30: 359-361. http://dx.doi.org/10.1590/S1984-46702013000300018

2013. Dias BC, Willemart RH. The effectiveness of post-contact defenses in a prey with no pre-contact detection. Zoology 116: 168-174. http://dx.doi.org/10.1016/j.zool.2012.12.001.

2013. Portela E, Willemart RH, Gasnier TH. Soil type preference and the coexistence of two species of wandering spiders (Ctenus amphora and C. crulsi: Ctenidae) in a rainforest in Central Amazonia. Journal of Arachnology 41:85-87.doi: http://dx.doi.org/10.1636/P12-59.1

2012 Carvalho LA, Souza ES, Willemart RH. Behavioral analysis of the interaction between the spitting spider Scytodes globula (Araneae: Scytodidae) and the harvestman Discocyrtus invalidus (Opiliones: Gonyleptidae). Journal of Arachnology 40: 332-337.doi: http://dx.doi.org/10.1636/Hill-86.1

2012 Chelini MC, Willemart RH, Gnaspini P. Gregarious behavior of two species of Neotropical harvestmen (Arachnida, Opiliones, Gonyleptidae). Journal of Arachnology 40: 256-258.doi: http://dx.doi.org/10.1636/Hi11-12.1

2012 Dias IA, Willemart RH, Marques AC. Does evolution matter? A case study in Brazil of the effects of an evolutionary-thinking atmosphere in postgraduate students´ belief in God/religious belief. Anais da Academia Brasileira de Ciências 84: 5-8. http://dx.doi.org/10.1590/S0001-37652012005000023

2012 Willemart RH, Hebets EA. Sexual differences in the behavior of the harvestman Leiobunum vittatum (Opiliones, Sclerosomatidae) towards conspecific cues. Journal of Insect Behavior 25: 12-23.  http://link.springer.com/article/10.1007%2Fs10905-011-9268-6

2011 Chelini MC, Willemart RH, Gnaspini P. Caves as a winter refuge by a Neotropical harvestman (Arachnida, Opiliones). Journal of Insect Behavior 24:393–398. http://link.springer.com/article/10.1007%2Fs10905-011-9264-x

2011 Souza EDS, Willemart RH. Harvest-ironman: heavy armature, and not its defensive secretions, protects a harvestman against a spider. Animal Behaviour, 81: 127-133. doi:10.1016/j.anbehav.2010.09.023 PDF

2011 Willemart RH, Santer RD, Spence AJ, Hebets EA. A sticky situation: solifugids (Arachnida, Solifugae) use adhesive organs on their pedipalps for prey capture. Journal of Ethology, 29: 177-180. doi:10.1007/s10164-010-0222-4 PDF

2010 Willemart R H, Giribet G. A scanning electron microscopic survey of the cuticle in Cyphophthalmi (Arachnida, Opiliones) with the description of novel sensory and glandular structures. Zoomorphology, 129: 175-183. doi:10.1007/s00435-010-0110-z PDF

2010 Willemart RH, Pérez-González A, Farine JP, Gnaspini P. Sexually dimorphic tegumental gland openings in Laniatores (Arachnida, Opiliones), with new data on 23 species. Journal of Morphology, 271: 641-653. doi:10.1002/jmor.10822 pmid:20027634 PDF

2009 Chelini M, Willemart R H, Hebets E A. Costs and benefits of freezing behaviour in the harvestman Eumesosoma roeweri (Arachnida, Opiliones). Behavioural Processes, 82: 153-159. doi:10.1016/j.beproc.2009.06.001 pmid:19539731 PDF

2009 Willemart RH, Farine JP, Gnaspini P. Sensory biology of Phalangida harvestmen (Arachnida, Opiliones): a review, with new morphological data on 18 species. Acta Zoologica, 90: 209-227. doi:10.1111/j.1463-6395.2008.00341.x PDF

2009 Willemart RH, Osses F, Chelini MC, Macías-Ordóñez R, Machado G. Sexually dimorphic legs in a neotropical harvestman (Arachnida, Opiliones): ornament or weapon?. Behavioural Processes, 80: 51-59. doi:10.1016/j.beproc.2008.09.006 pmid:18929628 PDF

2007 Peretti A V, Willemart R H. Sexual coercion does not exclude luring behavior in the climbing camel-spider Oltacola chacoensis (Arachnida, Solifugae, Ammotrechidae). Journal of Ethology, 25: 29-39. doi:10.1007/s10164-006-0201-y PDF

2007 Willemart RH, Chelini MC. Experimental demonstration of close-range olfaction and contact chemoreception in the Brazilian harvestman, Iporangaia pustulosa. Entomologia Experimentalis et Applicata, 123: 73-79. doi:10.1111/j.1570-7458.2007.0527.x PDF

2007 Willemart RH, Chelini MC, de Andrade R, Gnaspini P. An ethological approach to a SEM survey on sensory structures and tegumental gland openings of two neotropical harvestmen (Arachnida, Opiliones, Gonyleptidae). Italian Journal of Zoology, 74(1): 39-54. doi:10.1080/11250000601090529 PDF

2006 Willemart RH, Pellegatti-Franco F. The spider Enoploctenus cyclothorax (Araneae, Ctenidae) avoids preying on the harvestman Mischonyx cuspidatus (Opiliones, Gonyleptidae). Journal of Arachnology, 34: 649-652. doi:10.1636/S05-70.1 PDF

2006 Willemart RH, Farine JP, Peretti AV, Gnaspini P. Behavioral roles of the sexually dimorphic structures in the male harvestman, Phalangium opilio (Opiliones, Phalangiidae). Canadian Journal of Zoology, 84: 1763-1774. doi:10.1139/Z06-173 PDF

2004 Willemart RH, Gnaspini P. Spatial distribution, mobility, gregariousness, and defensive behaviour in a Brazilian cave harvestman Goniosoma albiscriptum (Arachnida, Opiliones, Gonyleptidae). Animal Biology, 54: 221-235. doi:10.1163/1570756042484674 PDF

2004 Willemart RH, Gnaspini P. Breeding biology of the cavernicolous harvestman Goniosoma albiscriptum (Arachnida, Opiliones, Laniatores): sites of oviposition, egg batches characteristics and subsocial behaviour. Invertebrate Reproduction and Development, 45: 15-28. PDF DOI: 10.1080/07924259.2004.9652570

2004 Willemart RH, Kaneto GE. On the natural history of the Neotropical spider Enoploctenus cyclothorax (Araneae, Ctenidae). Bulletin of the British Arachnological Society, 13: 53-59. PDF

2003 Willemart RH, Gnaspini P. Comparative density of hair sensilla on the legs of cavernicolous and epigean harvestmen (Arachnida: Opiliones). Zoologischer Anzeiger, 242: 353-365. doi:10.1078/0044-5231-00109 PDF

2002 Willemart RH. Cases of intra- and inter-specific food competition among Brazilian harvestmen, in captivity (Opiliones, Laniatores, Gonyleptidae). Revue Arachnologique 14: 49-58.

2001 Willemart RH. Egg covering behavior of the Neotropical harvestman Promitobates ornatus (Opiliones, Gonyleptidae). Journal of Arachnology, 29: 249-252. doi:10.1636/0161-8202(2001)029[0249:ECBOTN]2.0.CO;2 PDF

Capítulos de livro

2017 Willemart RH, Lacava M. Foraging Strategies of Cursorial and Ambushing Spiders. Em: Behaviour and ecology of neotropical spiders – Contributions of studies from the neotropical region (Ed Viera C, Gonzaga MO), Springer, pp 227-246.

2007 Willemart RH. Rearing and Maintenance of Animals in Captivity. Em: Harvestmen: the Biology of Opiliones (Ed Pinto-da-Rocha R, Machado G, Giribet G), Harvard University Press, pp 520-524.

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