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- Title
PARASITIC LAELAPID MITES (MESOSTIGMATA) ON RODENTS (CRICETIDAE, SIGMODONTINAE) FROM THE INTERIOR ATLANTIC FOREST OF EASTERN PARAGUAY.
- Authors
de la Sancha, Noé U.; Salvioni, Oscar D.; Vega Gómez, Celeste; Lareschi, Marcela
- Abstract
Among South American countries, Paraguay is one of the least studied in terms of its fauna and flora. Although its small mammal fauna, including sigmodontine rodents (Cricetidae), is becoming better known, their ectoparasites are scarcely known. As part of a study on the effects of habitat fragmentation in the Interior Atlantic Forest in eastern Paraguay, multiple dimensions of terrestrial small mammals in three major reserves were surveyed. The aim of this study is to identify the ectoparasites collected on the most abundant rodents and to describe, visualize and quantify the parasite-host relationships. Ectoparasites obtained by brushing the fur of the rodents were preserved in vials with 96% ethanol. Mites were then fixed, cleared with lactophenol, and mounted between slides with Hoyer’s medium for identification with optical microscopes. Mites (Mesostigmata, Laelapidae) were the only ectoparasites collected (n = 189), from rodents (n = 22) identified as Hylaeamys megacephalus, Oligoryzomys nigripes, Akodon montensis, and A. paranaensis. Mites identified on rodent hosts varied from Androlaelaps fahrenholzi and Gigantolaelaps oudemansi on H. megacephalus; A. fahrenholzi, Gigantolaelaps wolffsohni, Mysolaelaps parvispinosus and Laelaps paulistanensis on O. nigripes; A. fahrenholzi and Androlaelaps misionalis on A. montensis; and Androlaelaps sp., and A. fahrenholzi on A. paranaensis. Except for A. fahrenholzi, the remaining laelapid species herein reported constitute the first records for Paraguay. However, these parasite-host relationships have been documented in neighboring countries. Thus, the results obtained herein are valuable as they improve the knowledge of the fauna in Paraguay and contribute to the knowledge mite-host specificity.
- Subjects
PARAGUAY; CRICETIDAE; PARASITIFORMES; HOST-parasite relationships; RODENTS; FRAGMENTED landscapes; MITES
- Publication
Journal of Neotropical Mammalogy / Mastozoologia Neotropical, 2024, Vol 31, Issue 1, p1
- ISSN
0327-9383
- Publication type
Article
- DOI
10.31687/saremMN.24.31.01.20.e1021