Ectoparasites associated with sigmodontine rodents from northeastern Argentina

Abstract

The following five species are mentioned for the first time for the northeastern: Androlaelaps rotundus, Gigantolaelaps wolffsohni, Laelaps manguinhosi, L. paulistanensis, and Polygenis (P.) tripus, increasing the biodiversity known for the area. A tendency toward host aggregation was observed for most of the ectoparasites. Out of 10 ectoparasite species identified in the present study, five were collected from a unique host species, and so, species richness varied between three and four in every component community. Since some of the ectoparasites identified may play a role as vectors of pathogens, the obtained results contribute to a better understanding of the ectoparasite-host relationship, which may have epidemiological implications. Por lo general, los roedores sigmodontinos (Cricetidae) están asociados con una variedad de ectoparásitos. Sin embargo, los estudios en el noreste argentino son escasos. Aquí analizamos las comunidades componentes de ectoparásitos asociados con sigmodontinos en el sur de la

Ecology of fleas and their hosts in the trifinio of north‐east Argentina: first detection of Rickettsia asembonensis in Ctenocephalides felis felis in Argentina

“…In the case of P. (P.) rimatus, infestations of this flea were recorded on R. rattus only in the periurban area, linked to patches of native forest, and on D. albiventris, predominating in the periurban area. These results can be associated with the findings obtained in Misiones and Buenos Aires provinces, Argentina (Urdapilleta et al, 2019) and Brazil (Horta et al, 2007;Cáceres, 2012), which consider Rhopalopsyllidae and Ctenophthalmidae as the families with the highest number of ectoparasitic species on cricetid rodents and marsupials. These findings highlight the movement of non-domestic host species in urban areas, which could be associated with the introduction of new parasites into urban ecosystems, such as P. (P.) rimatus in R. rattus.…”

“…felis. Possibly, a higher population density of opossums due to a decrease in their home ranges, along with increased interactions among wildlife, household companion animals and humans, would facilitate the maintenance and transmission of fleas and flea-borne bacteria, promoting the emergence of zoonoses (Hassell et al, 2017;Urdapilleta et al, 2019).…”

“…Misiones Province in northeastern Argentina has been scarcely studied, with most of the flea species reports corresponding to the genus Polygenis (Rhopalopsyllidae), most of them associated with cricetid rodents (Lareschi et al, 2019). However, some species of Polygenis also parasitize marsupials and other mammals in other areas of the country, presenting low host specificity (Lareschi et al, 2016).…”

Siphonaptera associated with small mammals (Didelphimorphia, Chiroptera, and Rodentia) from northwestern Argentina

“…Distribution in Argentina. Buenos Aires, Salta (Lareschi et al 2016), and Misiones provinces (Lareschi et al 2019).…”

The holistic specimen and parasites of mammals

“…This special issue contains studies addressing the correspondence between the phylogeny of hosts and parasites (Popinga et al 2019); identification of communities of mammals and ectoparasites in Argentina (Lareschi et al 2019 I am grateful for the invitation received by AMMAC through its editor-in-chief to edit this special issue; also, to all authors and reviewers who kindly agreed to contribute to this project; and to J. Falcón and F. Garcia C. for reviewing early versions of this contribution.…”