A new cave-dwelling species of Spelaeobochica (Pseudoscorpiones: Bochicidae) from Brazil

Ratton, Pedro; Mahnert, Volker; Ferreira, Rodrigo Lopes

doi:10.1636/ha12-39.1

Cited by 18 publications

(10 citation statements)

References 7 publications

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“…Since both visits occurred in the dry period of the area, such differences observed on their abundance and distribution cannot be primarily related to seasonal changes. Potential predators include spiders (especially Ochyroceratidae), Amblypygi (Charinus iuiu Vasconcelos & Ferreira, 2016) and a relatively large troglobitic pseudoscorpion species, with a body size of around 5 mm (Spelaeobochica iuiu Ratton, Mahnert & Ferreira, 2012); the latter is well distributed throughout the cave, but less common in the areas where I. caeca occurs.…”

Section: Iuiuia Caecamentioning

confidence: 99%

Iuiuia caeca gen. n., sp. n., a new troglobitic planthopper in the family Kinnaridae (Hemiptera, Fulgoromorpha) from Brazil

Hoch¹,

Ferreira²

2016

DEZ

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Section: Iuiuia Caecamentioning

confidence: 99%

Iuiuia caeca gen. n., sp. n., a new troglobitic planthopper in the family Kinnaridae (Hemiptera, Fulgoromorpha) from Brazil

Hoch¹,

Ferreira²

2016

DEZ

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“…Sampling was conducted by direct intuitive searches (DIS) using tweezers, brushes, suckers and hand nets for catches (Wynne et al, 2019). A standard effort averaging 1 min per square meter of floor was applied, as the floor microhabitats require more effort than the walls and the ceiling is The determination of troglomorphic species was made based on criteria in the literature specific to each taxonomic group and expert assessment (Baptista & Giupponi, 2003;Brescovit et al, 2012;Iniesta & Ferreira, 2015;Pinto-da-Rocha, 1996;Prevorcnik et al, 2012;Ratton et al, 2012;Souza & Ferreira, 2010).…”

Section: Sampling and Identification Of Cave Faunamentioning

confidence: 99%

Epigean and hypogean drivers of Neotropical subterranean communities

Rabelo

Souza‐Silva

Ferreira

2020

Journal of Biogeography

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Aim: In addition to cave size and other subterranean habitat characteristics, cave entrances are important structurers of neotropical cave communities. However, little is known about the epigean ecosystems factors that might dictate the influence of entrances and the relationship among surface and cave communities, as entrance regions are ecotonal zones between the epigean and hypogean ecosystems. We aimed to assess the influence of epigean and hypogean factors as potential drivers of invertebrate species richness in Neotropical caves as well as the influence of the regional pool of invertebrate diversity on cave invertebrate diversity. Location: Limestone caves in southeastern Brazil. Taxon: Invertebrates Methods: Data were collected in 48 caves within the Cerrado biome (Brazilian Savanna). The fauna sampling was performed by a direct intuitive search (DIS). Landscape characteristics and climatic parameters were accessed using geographic information systems. The characterization of the caves occurred during each sampling event. Regional diversity was based on the Taxonomic Catalog of Brazilian Fauna. To clarify the factors that significantly influence invertebrate species richness of the caves, we used generalized linear models (GLM). The relationship between regional diversity and cave diversity was evaluated based on linear models (LM). Results: Overall, 1,173 species were found, of which 72 were obligate subterranean dwellers. The cave total species richness was influenced by hypogean factors and epigean factors. The species richness of obligate cave dwellers was significantly explained only by cave size. The regional pool of invertebrate species influenced the levels of biodiversity in the studied caves. The taxa with troglobitic species tended to be more diverse in caves than expected. Main conclusions: In addition to the influences of intrinsic cave variables, we highlight the importance of epigean factors on subterranean diversity in the Neotropics. The study shows the significant influence of the regional species pool on cave faunal composition. These findings reinforce the importance of considering the surrounding areas in actions regarding cave biodiversity conservation.

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“…As espécies de aracnídeos troglóbios brasileiros estão listadas em Trajano e Bichuette (2010), às quais se deve acrescentar as descritas por Souza e Ferreira (2010;2012a, b); Ferreira e Souza (2012); Ratton et al, 2012;Machado et al, 2011: são ao todo pelo menos 16 espécies de aranhas (há muitas ainda não descritas), com destaque para as famílias Ochyroceratidae e Pholcidae, quatro de Amblypygi, quatro de pseudo escorpiões (mas o núme-ro real deve ser muito superior tendo em vista as espécies não descritas), 15 de opiliões (idem) e sete de Palpigradi. Some-se, a esta, a altíssima diversidade de aracnídeos troglófilos, típica de cavernas tropicais, que constituem um excelente te material para comparações.…”

Section: A Aracnofauna Subterrânea Brasileiraunclassified

Morfologia e ecologia sensorial em aracnídeos troglóbios: perspectivas para a espeleobiologia brasileira

Willemart¹,

Taques²

2013

revbio

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Resumo. Neste texto nós discutimos as relações existentes entre a ecologia sensorial e o estudo de aracnídeos cavernícolas. Como a ecologia e comportamento de determinada espécie depende diretamente dos estímulos do ambiente aos quais ela responde e por sua vez isso depende das estruturas sensoriais que ela possui, é fundamental entender aspectos morfológicos dos animais. Ressaltamos, então, alguns dos troglomorfismos conhecidos no grupo e discutimos questões interessantes a serem investigadas. Trabalhos sobre comportamento de aracnídeos troglóbios podem ser mais difíceis de realizar devido a sua baixa abundância, enquanto estudos morfológicos tipicamente apresentam menos obstáculos. Deve-se levar em conta também que as teorias da seleção natural e sexual podem gerar previsões distintas sobre diferenças entre epígeos e troglóbios próximos filogeneticamente, o que traz importantes implicações sobre a compreensão da ecologia sensorial de determinada espécie. Os vários levantamentos de fauna cavernícola feitos no Brasil, combinados com a literatura elencada neste trabalho, auxiliam os interessados em iniciar projetos nesta área. Palavras-chave. Arachnida; Espeleobiologia; Estruturas sensoriais; Mecanorrecepção; Quimiorrecepção.Abstract. In this paper, we discuss some relationships between sensory ecology and the study of cave arachnids. As the ecology and behavior of a given species depends directly on which stimuli it responds to and that depends on the sensory structures it has, it is very important to understand morphological aspects of the animals. We therefore emphasize some of the troglomorphisms known in the group and address interesting questions to be further investigated. Studies on behavior may be more difficult to conduct because of the low number of troglobites typically found in caves, whereas studies on morphology are usually easier to carry out. We should also consider that natural and sexual selection may generate distinct predictions on what differences are to be found when comparing phylogenetically close epigean and troglobites. The various faunistic surveys carried out in Brazililian caves, combined with the literature listed in the present paper, are helpful for those interested in starting projects in this area. Keywords. Arachnida; Speleobiology; Sensory structures; Mechanoreception; Chemoreception. Contato do autores: willemart@usp.br ; bruna@usp.br IntroduçãoTodos os animais respondem às informações relevantes recebidas do meio, em um processo que envolve fatores fisiológicos e comportamentais que podem variar de acordo com o contexto envolvido: detecção de predadores, presas, parceiros sexuais ou monitoramento do habitat dentre outros. A detecção e resposta a essas informações de maneira adequada é, portanto, essencial à sobrevivên-cia de um organismo, pois é através delas que poderão responder aos perigos e oportunidades de maneira a sobreviver e reproduzir-se, assim propagando seus genes. A ecologia sensorial visa estudar os processos pelos quais as informações do mundo exterior são obt...

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A new cave-dwelling species of Spelaeobochica (Pseudoscorpiones: Bochicidae) from Brazil

Cited by 18 publications

References 7 publications

Iuiuia caeca gen. n., sp. n., a new troglobitic planthopper in the family Kinnaridae (Hemiptera, Fulgoromorpha) from Brazil

Iuiuia caeca gen. n., sp. n., a new troglobitic planthopper in the family Kinnaridae (Hemiptera, Fulgoromorpha) from Brazil

Epigean and hypogean drivers of Neotropical subterranean communities

Morfologia e ecologia sensorial em aracnídeos troglóbios: perspectivas para a espeleobiologia brasileira

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