BIOLOGIA SUBTERRÂNEA
URI permanente para esta coleçãohttps://bdc.icmbio.gov.br/handle/cecav/3
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Resultados da Pesquisa
- Three new cave-dwelling Eukoenenia (Palpigradi: Eukoeneniidae) from limestone caves in Northern Minas Gerais state, Brazil(Magnolia Press, 2020-07-02) SOUZA, MAYSA FERNANDA VILLELA REZENDE; FERREIRA, RODRIGO LOPESIn this paper, we describe three new Eukoenenia species from specimens collected in limestone caves in the northern region of the Minas Gerais state, Brazil. These species present different degrees of adaptation to the subterranean habitat, with Eukoenenia magnasp. nov., with 6 blades on lateral organs and body ratios very close to other troglobitic species, being the most troglomorphic among them. This species is morphologically very similar to the Brazilian troglobites E. navi, E. eywa and E. neytiri. Eukoenenia lundisp. nov. and Eukoenenia jequitaisp. nov. are probably closely related species due to their substantial morphological resemblance. These two species are closer to E. virgemdalapa among the Brazilian species described to date. We provide a table summarizing the main diagnostic characters of the three species herein described and those of the Brazilian congeners to facilitate morphological comparisons.
- Spelaeobochica goliath (Arachnida: Pseudoscorpiones: Bochicidae), a new troglo-bitic pseudoscorpion from Brazil(Magnolia Press, 2018) VIANA, ANA CLARA M.; SOUZA, MAYSA F. V. R.; FERREIRA, RODRIGO L.Spelaeobochica goliath sp. n., found in a limestone cave located in the municipality of Ibiracatu (Minas Gerais, Brazil), is described. It can be distinguished from the other species of the genus mainly by the slight angular shape of the anterior margin of the carapace, distal position of the trichobothrium est relative to st on the movable finger, isb in a position much nearer to level of sb than to that of esb, and by its pedipalpal measurements and proportions. It shares many morphological features with S. iuiu.
- New troglobitic and troglophilic syntopic species of Endecous(Orthoptera, Grylloidea, Phalangopsidae) from a Brazilian cave: a case of sympatric speciation?(Magnolia Press, 2020) CASTRO-SOUZA, RODRIGO ANTÔNIO; ZEFA, EDISON; LOPES FERREIRA, RODRIGOCrickets of the genus Endecous (Orthoptera: Grylloidea: Phalangopsidae) are frequently found in caves, in some cases presenting strictly subterranean lifestyle. In addition to the morphological diagnostic characters of the group, bioacoustic and karyotype, also help on delimiting species. Here, we describe two new sympatric species of this genus, which occur in the largest cave of Minas Gerais state, Brazil, using the morphology of phallic complex, the courtship song and karyotype. Moreover, we discuss the criteria used, the troglomorphisms for this genus, as well as hypothesis on the speciation process involving these species.
- Multi-instar descriptions of cave dwelling Erythraeidae (Trombidiformes: Parasitengona) employing an integrative approach(Magnolia Press, 2019-12-31) COSTA, SAMUEL GEREMIAS DOS SANTOS; KLOMPEN, HANS; BERNARDI, LEOPOLDO FERREIRA DE OLIVEIRA; GONÇALVES, LUCIANA CARDOSO; RIBEIRO, DANTE BATISTA; PEPATO, ALMIR ROGÉRIOThe life cycle of Parasitengona includes major morphological changes precluding an instar association based only on the morphology. This makes rearing and/or molecular data necessary to associate the heteromorphic instars. Most of the described species are known from either post larval instars or larva. Following a previous study on Palearctic Erythraeidae, in the present study the instar association was made through an integrative approach including rearing trials and molecular analysis of the cytochrome oxidase I (COI) gene with the Bayesian Generalized Mixed Yule Coalescent (bGMYC) algorithm for species delimitation. Two new cave dwelling Erythraeidae (Trombidiformes: Parasitengona) species are described Lasioerythraeus jessicae sp. nov. and Leptus sidorchukae sp. nov. including all active instars. Additionally, a complete description of the previously unknown adults of Charletonia rocciai Treat & Flechtmann, 1979 is provided with notes on the larva and deutonymph. We also demonstrate experimentally that Ch. rocciai larvae are not attached to the same individual host during the entire feeding stage. We discuss the presence of troglomorphisms in Le. sidorchukae sp. nov.; and the distribution of the species.