Work

Occurrence and population distribution of Withius aff. piger (Simon, 1878) (Withiidae), in commercial laying hen poultry houses in southern Brazil

Year: 2026

Type: article

Abstract: Laying hen house settings are favorable sites for the presence of many arthropods, e.g. pseudoscorpions, which are arachnids that are predators of ecological importance and yet are poorly studied. The aim of this study was to investigate the population fluctuation of a pseudoscorpion found in a commercial laying hen house. Samplings were performed weekly, in two commercial laying hen houses (Céu Azul, PR, Brazil, between April and November 2021). Sampling was conducted using Avivet traps attached to the cages. Their content was analyzed in the laboratory. Pseudoscorpions were separated, counted, and individualized into plastic micro-tubes, containing a 70% alcohol solution. The species Withius aff. piger (Simon 1878) (Withiidae) was confirmed in all traps with presence of pseudoscorpions, mainly in August and September, associated to high populations of Dermanyssus gallinae (De Geer 1778) (Dermanyssidae).

Source: DOAJ (DOAJ: Directory of Open Access Journals)

DOI: 10.4025/actascibiolsci.v48i1.75329

Authors: Louise Mackeylle Mendes Andriola, Liana Johann, Rafael Freire Miguel, Everton Tizo-Pedroso, Luis Francisco Angeli Alves

Institutions: Universidade Estadual do Oeste do Paraná, Univates, Universidade Estadual de Goiás

Language: English

Topic: Spider Taxonomy and Behavior Studies

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: green

OpenAlex ID: W7149959815

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