Spots of high diversity of troglobites in Brazil: the challenge of measuring subterranean diversity

Trajano, Eleonora; Gallão, Jonas E.; Bichuette, Maria Elina

doi:10.1007/s10531-016-1151-5

Cited by 56 publications

(41 citation statements)

References 52 publications

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“…Two of the three caves with new C. iporangensis records are in limestone outcrops that are not part of the Areias cave system. These outcrops are isolated by non-soluble rocks that limit dispersal of terrestrial cave fauna (Trajano et al 2016). Furthermore, the species’ cave category should be reviewed given that troglomorphism is not definite.…”

Section: Resultsmentioning

confidence: 99%

A synopsis of centipedes in Brazilian caves: hidden species diversity that needs conservation (Myriapoda, Chilopoda)

Chagas¹,

Bichuette²

2018

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This study revises centipede fauna found in Brazilian caves, focusing on troglomorphic taxa and emphasizing conservation status. We present 563 centipede specimens from 274 caves across eleven Brazilian states. Of these, 22 records were derived from existing literature and 252 are newly collected. Specimens represent four orders, ten families, 18 genera, and 47 morphospecies. Together, the cave records represent 21 % of Brazil’s centipede fauna. Scolopendromorpha was the most representative order (41 %), followed by Geophilomorpha (26 %), Scutigeromorpha (23 %), and Lithobiomorpha (10 %). Six species were found only in caves, with four considered troglobitic. The distribution of Cryptops iporangensis, the first Brazilian troglobitic centipede species to be discovered, was expanded to other three caves. Cryptops spelaeoraptor and Cryptops iporangensis are two troglobitic species considered Vulnerable and Endangered, respectively, according to the IUCN Red List. Main threats to Brazilian caves are mining, hydroelectric projects, water pollution, and unregulated tourism.

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Section: Resultsmentioning

confidence: 99%

A synopsis of centipedes in Brazilian caves: hidden species diversity that needs conservation (Myriapoda, Chilopoda)

Chagas¹,

Bichuette²

2018

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“…The cave has no management plan and is subject to local environmental impacts related to poorly regulated speleotourism (Trajano et al 2016). However, the main threats in Iraquara region are the drastic and uncontrolled exploration of the subterranean waters and the pollution of the aquifers by pesticides.…”

Section: Methodsmentioning

confidence: 99%

The first troglobiotic species of the family Pudeoniscidae (Crustacea, Isopoda, Oniscidea), with descriptions of a new genus and two new species

Campos-Filho¹,

Bichuette²,

Montesanto³

et al. 2017

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Citation: Campos-Filho IS, Bichuette ME, Montesanto G, Araujo PB, Taiti S (2017) The first troglobiotic species of the family Pudeoniscidae (Crustacea, Isopoda, Oniscidea), with description of a new genus and two new species. Subterranean Biology 23: 69-84. https://doi.org/10.3897/subtbiol.23.20963 Abstract Approximately 170 species of terrestrial isopods are known from Brazil, but only 12 are considered troglobionts. The family Pudeoniscidae comprises four species in two genera, Brasiloniscus and Pudeoniscus. After the examination of material collected in caves in the state of Bahia, a new genus and two new species have been recognized, Iansaoniscus iraquara gen. et sp. n. from Buraco do Cão cave, Iraquara, and Iansaoniscus georginae gen. et sp. n. from Borboletas cave, Paripiranga. The new genus and new species are placed in Pudeoniscidae on the basis of some morphological characteristics, such as antennal flagellum with second and third articles divided by a slender suture, epimera of pereonite 1 with dorsolateral furrow reduced or absent, and shape of uropods. The Brazilian subterranean environments are now under potential threat because of recent legislation for cave exploitation, and the knowledge of the subterranean biodiversity of the country is thus of primary importance for its effective conservation. RESEARCH ARTICLE Subterranean BiologyPublished by The International Society for Subterranean Biology A peer-reviewed open-access journal Ivanklin S. Campos-Filho et al. / Subterranean Biology 23: 69-84 (2017) 70

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“…Due to their many particularities, and although normally presenting taxonomic diversities considerably lower than that observed on the surface, subterranean ecosystems are generally characterized by high phylogenetic, morphological and functional diversities (Trajano et al 2016). Likewise, as a consequence of their high frequency of genetic divergence, expressed as morphological, physiological, and/or behavioral apomorphic characters (mostly related to subterranean life, i.e.…”

Section: Implications For Conservation Of Subterranean Ecosystemsmentioning

confidence: 99%

Towards a biologically meaningful classification of subterranean organisms: a critical analysis of the Schiner-Racovitza system from a historical perspective, difficulties of its application and implications for conservation

Trajano¹,

Carvalho²

2017

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Citation: Trajano E, Carvalho MR (2017) Towards a biologically meaningful classification of subterranean organisms: a critical analysis of the Schiner-Racovitza system frpm a historical perspective, difficulties of its application and implications for conservation. Subterranean Biology 22: 1-26. https://doi.org/10.3897/subtbiol.22.9759 Abstract Subterranean organisms always attracted the attention of humans using caves with various purposes, due to the strange appearance of several among them and life in an environment considered extreme. According to a classification based on the evolutionary and ecological relationships of these organisms with subterranean habitats, first proposed by Schiner in 1854 and emended by Racovitza in 1907, three categories have been recognized: troglobites, troglophles and trogloxenes. The Schiner-Racovitza system has been discussed, criticized, emended, the categories have been redefined, subdivided, original meanings have changed, but it is used until now. Herein we analyze in a conceptual framework the main ecological classifications of subterranean organisms, from Schiner to Trajano, in 2012, so far the last author to introduce a relevant conceptual change on the categories definitions, incorporating the source-sink population model. Conceptual inconsistencies are pointed, especially with regards to the generally ill-defined trogloxene category, and the correspondence between categories according to the original sense and in alternative classifications is discussed. Practical criteria for distinction between these categories and difficulties for their application are presented. The importance of rightly classifying subterranean populations according to the Schiner-Racovitza system for conservation of these fragile and mostly threatened habitats is discussed.

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Spots of high diversity of troglobites in Brazil: the challenge of measuring subterranean diversity

Cited by 56 publications

References 52 publications

A synopsis of centipedes in Brazilian caves: hidden species diversity that needs conservation (Myriapoda, Chilopoda)

A synopsis of centipedes in Brazilian caves: hidden species diversity that needs conservation (Myriapoda, Chilopoda)

The first troglobiotic species of the family Pudeoniscidae (Crustacea, Isopoda, Oniscidea), with descriptions of a new genus and two new species

Towards a biologically meaningful classification of subterranean organisms: a critical analysis of the Schiner-Racovitza system from a historical perspective, difficulties of its application and implications for conservation

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