Diversity of iron cave-dwelling mygalomorph spiders from Pará, Brazil, with description of three new species (Araneae)

Mygalomorph spiders are rarely found in caves and most of the records appear as accidental or restricted to small populations. The present study took place in iron formations in Carajás region, southeastern Pará state, eastern Brazilian Amazon rainforest. Each cave was sampled twice: dry season (fr...

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Main Authors: Rafael Fonseca-Ferreira, Robson de Almeida Zampaulo, José Paulo Leite Guadanucci
Format: Article
Language:English
Published: PAGEPress Publications 2017-09-01
Series:Tropical Zoology
Subjects:
Online Access:https://pagepress.org/biology/tz/article/view/50
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author Rafael Fonseca-Ferreira
Robson de Almeida Zampaulo
José Paulo Leite Guadanucci
author_facet Rafael Fonseca-Ferreira
Robson de Almeida Zampaulo
José Paulo Leite Guadanucci
author_sort Rafael Fonseca-Ferreira
collection DOAJ
description Mygalomorph spiders are rarely found in caves and most of the records appear as accidental or restricted to small populations. The present study took place in iron formations in Carajás region, southeastern Pará state, eastern Brazilian Amazon rainforest. Each cave was sampled twice: dry season (from May to October) and wet season (from November to April). Of the 242 caves sampled, we found mygalomorphs in 98 (40%). The survey yielded 254 specimens, 223 (87.8%) juveniles. Of the 14 species recorded, nine were represented by adults: Dolichothele tucuruiense (Guadanucci, 2007), Hapalopus aymara Perdomo, Panzera & Pérez-Miles, 2009, Acanthoscurria geniculata (CL Koch, 1841), Theraphosa blondi (Latreille, 1804), Nhandu coloratovillosus (Schmidt, 1998), Fufius minusculus Ortega, Nagahama, Motta & Bertani, 2013, and three new are species described here: Guyruita metallophila n. sp., Hapalopus serrapelada n. sp., and Idiops carajas n. sp. Five other “morphospecies” were represented by juveniles only: Ummidia sp. (Ctenizidae), Paratropis sp. (Paratropididae), Bolostromus sp. (Cyrtaucheniidae), Diplura sp. (Dipluridae), and Idiophtalma sp. (Barychelidae). The high number of juveniles suggests two alternatives: some species could be using the hypogean environment as reproductive shelter; the hypogean environment is used as a refuge by immatures. Two species appear to be troglophiles: G. metallophila and H. aymara. https://zoobank.org/urn:lsid:zoobank.org:pub:C92F29CB-4B9C-402D-8AA6-F8251DE49529.
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spelling doaj.art-24ec40e6e8e34bd38e14842a95abc7e02023-05-02T14:59:59ZengPAGEPress PublicationsTropical Zoology0394-69751970-95282017-09-01304Diversity of iron cave-dwelling mygalomorph spiders from Pará, Brazil, with description of three new species (Araneae)Rafael Fonseca-Ferreira0Robson de Almeida Zampaulo1José Paulo Leite Guadanucci2Biologia Comparada, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP; Laboratório de Estudos Subterrâneos, Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de São Carlos, São Carlos, SPGerencia de Licenciamento Ambiental e Espeleologia, Vale SA, Nova Lima, MGDepartamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista, Rio Claro, SP Mygalomorph spiders are rarely found in caves and most of the records appear as accidental or restricted to small populations. The present study took place in iron formations in Carajás region, southeastern Pará state, eastern Brazilian Amazon rainforest. Each cave was sampled twice: dry season (from May to October) and wet season (from November to April). Of the 242 caves sampled, we found mygalomorphs in 98 (40%). The survey yielded 254 specimens, 223 (87.8%) juveniles. Of the 14 species recorded, nine were represented by adults: Dolichothele tucuruiense (Guadanucci, 2007), Hapalopus aymara Perdomo, Panzera & Pérez-Miles, 2009, Acanthoscurria geniculata (CL Koch, 1841), Theraphosa blondi (Latreille, 1804), Nhandu coloratovillosus (Schmidt, 1998), Fufius minusculus Ortega, Nagahama, Motta & Bertani, 2013, and three new are species described here: Guyruita metallophila n. sp., Hapalopus serrapelada n. sp., and Idiops carajas n. sp. Five other “morphospecies” were represented by juveniles only: Ummidia sp. (Ctenizidae), Paratropis sp. (Paratropididae), Bolostromus sp. (Cyrtaucheniidae), Diplura sp. (Dipluridae), and Idiophtalma sp. (Barychelidae). The high number of juveniles suggests two alternatives: some species could be using the hypogean environment as reproductive shelter; the hypogean environment is used as a refuge by immatures. Two species appear to be troglophiles: G. metallophila and H. aymara. https://zoobank.org/urn:lsid:zoobank.org:pub:C92F29CB-4B9C-402D-8AA6-F8251DE49529. https://pagepress.org/biology/tz/article/view/50arachnidscangacavesconservationtaxonomy
spellingShingle Rafael Fonseca-Ferreira
Robson de Almeida Zampaulo
José Paulo Leite Guadanucci
Diversity of iron cave-dwelling mygalomorph spiders from Pará, Brazil, with description of three new species (Araneae)
Tropical Zoology
arachnids
canga
caves
conservation
taxonomy
title Diversity of iron cave-dwelling mygalomorph spiders from Pará, Brazil, with description of three new species (Araneae)
title_full Diversity of iron cave-dwelling mygalomorph spiders from Pará, Brazil, with description of three new species (Araneae)
title_fullStr Diversity of iron cave-dwelling mygalomorph spiders from Pará, Brazil, with description of three new species (Araneae)
title_full_unstemmed Diversity of iron cave-dwelling mygalomorph spiders from Pará, Brazil, with description of three new species (Araneae)
title_short Diversity of iron cave-dwelling mygalomorph spiders from Pará, Brazil, with description of three new species (Araneae)
title_sort diversity of iron cave dwelling mygalomorph spiders from para brazil with description of three new species araneae
topic arachnids
canga
caves
conservation
taxonomy
url https://pagepress.org/biology/tz/article/view/50
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