Diversity of scorpions (Chelicerata: Arachnida) in the Atlantic Forest in Pernambuco, northeastern Brazil

Lira, André Felipe de Araújo; Albuquerque, Cleide Maria Ribeiro de

doi:10.15560/10.6.1331

Cited by 13 publications

(3 citation statements)

References 20 publications

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“…In scorpion inventories that use active sampling, as the present study, representatives of this subgenus are usually considered as the most abundant species in forested biomes in Brazil (e.g. Lira & Albuquerque 2014; Lira, Salomão & Albuquerque 2019). However, scorpion inventories based mostly on pitfall trap sampling result in different abundance patterns (e.g.…”

Section: Discussionmentioning

confidence: 99%

Scorpions (Arachnida: Scorpiones) from the Serra de Piquiatuba, Santarém, Pará, northern Brazil

et al. 2023

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The Serra de Piquiatuba is situated in the area of the 8th Battalion of Engineering and Construction-8° BEC, located at km 8 of the Santarém-Cuiabá highway, in the municipality of Santarém, Pará, Brazil. This region is characterized by a hot and humid climate with rainfall exceeding 1900 mm p.a. In this study, we present a species list of scorpions from the Serra de Piquiatuba, based on data collected from September to November 2010. Five species were recorded, all common in the Amazon, belonging to the families Buthidae and Chactidae. The observed diversity patterns are discussed considering other scorpion inventories carried out in Brazil and possible sampling biases. The present study raises methodological questions to be further addressed in scorpion community ecology studies.

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Section: Discussionmentioning

confidence: 99%

Scorpions (Arachnida: Scorpiones) from the Serra de Piquiatuba, Santarém, Pará, northern Brazil

et al. 2023

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“…In this study, we investigated SD and mating behaviors of Tityus pusillus Pocock 1893, the most abundant scorpion species in the northeast Atlantic Forest in Brazil (Lira & Albuquerque ; Lira et al. , ).…”

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Sexual dimorphism and reproductive behavior in the Brazilian scorpionTityus pusillus(Scorpiones, Buthidae)

Lira

Pordeus

Rego

et al. 2018

Invertebrate Biology

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We studied sexual dimorphism (SD) and reproductive behavior in the litter‐dwelling scorpion, Tityus pusillus. SD was determined by measuring seven body structure attributes (prosoma, mesosoma, and metasoma lengths, and pedipalp chelae and metasomal segment V lengths and widths) in 634 individuals (211 males and 423 females) from the Arachnological Collection of the Universidade Federal de Pernambuco. Reproductive behavior was observed in 55 couples during nocturnal activity observations conducted in the laboratory. In addition, we evaluated gestation time, hemispermatophore replacement, and sequential courtship. Individuals of T. pusillus exhibited typical reproductive behavior, with a short courtship time (averaging 10±5 min). Males only accepted new partners at least 48 h after first mating, suggesting that this period may be necessary for hemispermatophore production. Females did not accept new partners for 24–48 h after their first mating. The average gestation period was 85±12 d, ranging 60–100 d. Our results showed a more complex picture of SD than previously described for this species, including features characteristic of both sexual size dimorphism (SSD) and sexual body component dimorphism in scorpions. In general, considering the relatively large size of the prosoma and mesosoma in T. pusillus, it seems reasonable to conclude that female‐biased SSD exists in the species, and that male‐biased sexual body component dimorphism is evident in the metasoma and chelae.

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“…Because of the difficulty in identifying juveniles, the assassin bug was classified to the tribe level, Harpactorini. The immature assassin bug preyed on a juvenile Tityus pusillus Pocock, 1893 (Scorpiones: Buthidae), which is the most abundant and widely found scorpion in the northeastern region of the Brazilian Atlantic Forest (Lourenço, 2002;Porto et al, 2010;Lira and Albuquerque, 2014;Lira et al, 2015) and is capable of causing injuries to humans (Albuquerque et al, 2009). This scorpion is a sedentary predator commonly found in the leaf litter layers; its abundance increases in the dry season, and it shows a positive relationship with dry litter mass (Lira et al, 2013(Lira et al, , 2015Lira and DeSouza, 2014).…”

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Predation of a scorpion (Scorpiones: Buthidae) by an assassin bug(Heteroptera: Reduviidae) in the Brazilian Atlantic Forest

Lira¹,

Araújo²,

Albuquerque³

2016

Turk J Zool

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Litter-dwelling arthropods comprise about three-fourths of the total animal biomass in tropical forests. These invertebrates are involved in many interspecific interactions, from mutualism to predation. We report herein the predation of a scorpion by an immature assassin bug (Harpactorini) during a nocturnal manual search for scorpions in a fragment of the Brazilian Atlantic Forest. The specimens were found 15 cm above the ground on a seedling, and the prey was two-fold larger than the predator. The assassin bug had its rostrum inserted into the pleura of a juvenile Tityus pusillus Pocock, 1893 scorpion, between the first and second segments of the mesosoma; when disturbed, the predator jumped to the leaf litter without releasing its prey. To the best of our knowledge, this is the first report of juvenile predator-prey interactions between a heteropteran and a scorpion in this biome.

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Diversity of scorpions (Chelicerata: Arachnida) in the Atlantic Forest in Pernambuco, northeastern Brazil

Cited by 13 publications

References 20 publications

Scorpions (Arachnida: Scorpiones) from the Serra de Piquiatuba, Santarém, Pará, northern Brazil

Scorpions (Arachnida: Scorpiones) from the Serra de Piquiatuba, Santarém, Pará, northern Brazil

Sexual dimorphism and reproductive behavior in the Brazilian scorpionTityus pusillus(Scorpiones, Buthidae)

Predation of a scorpion (Scorpiones: Buthidae) by an assassin bug(Heteroptera: Reduviidae) in the Brazilian Atlantic Forest

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