title: Insights into reproductive strategies of Tityus (Archaeotityus) pusillus Pocock, 1893 (Scorpiones, Buthidae).
abstract: A remarkable diversity of life history strategies has evolved among species for achieving reproductive success, including adaptive growth, protandry, iteroparity, and extra molting. Here, we report on the reproductive strategies of the litter-dwelling scorpion, Tityus (Archaeotityus) pusillus, the most abundant and widespread scorpion species in the Atlantic Forest of northeastern Brazil. We observed both iteroparity and protandry reproductive strategies in this species. Females were competent to produce up to three broods after a single insemination, and no correlation between female size and litter size was observed. Most males reached adulthood 1 month before females following four molts, characterizing protandry. Nevertheless, an extra molt was observed to occur in some males (n=4) and females (n=1). These findings highlight the life history traits of T. (A.) pusillus, which may imply in reproductive success and adaptation to changes in environmental conditions.
authors.affiliation: Departamento de Zoologia, Universidade Federal de Pernambuco, UFPE, Rua Prof. Moraes Rego S/N, Cidade Universitária, Recife, Pernambuco, CEP 50670-420, Recife, PE, Brazil.
authors.forename: Cleide Maria Ribeiro
authors.initials: CMR
authors.lastname: de Albuquerque
authors.affiliation: Programa de Pós-graduação em Biologia Animal, Departamento de Zoologia, Universidade Federal de Pernambuco, UFPE, Rua Prof. Moraes Rego S/N, Cidade Universitária, Recife, Pernambuco, CEP 50670-420, Recife, PE, Brazil. Electronic address: andref.lira@gmail.com.
authors.forename: André Felipe
authors.initials: AF
authors.lastname: de Araujo Lira
mesh_terms: D000818:Animals; D001938:Brazil; D004777:Environment; D005260:Female; D005306:Fertilization; D008098:Litter Size / Q000502:physiology; D008297:Male; D018978:Molting; D010802:Phylogeny; D012098:Reproduction / Q000502:physiology*; D012605:Scorpions / Q000254:growth & development / Q000502:physiology*; D012727:Sex Characteristics
keywords: Deferred fertilization; Extra molt; Iteroparity; Postembryonic development; Protandry