Holochilus chacarius Thomas, 1906 (Mammalia, Rodentia, Sigmodontinae) in Middle Delta of the Paraná River, Entre Ríos, Argentina

• Main Authors: Courtalon, Paula, Lo Coco, Gastón Ernesto
• Language: unknown
• Published: 2013
• Subjects: Argentina; Entre Ríos; Holochilus chacarius; Middle Delta of the Paraná River; Sigmodontinae; Chaco; Victoria Island
• Online Access: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15145158_v15_n2_p289_Courtalon; https://hdl.handle.net/20.500.12110/paper_15145158_v15_n2_p289_Courtalon

We describe the presence of Holochilus chacarius in the Victoria Island Zone included in the Middle Delta of the Paraná River (Entre Ríos, Argentina). We collected and analysed pellets of the Striped Owl (Pseudoscops clamator). All cranio dental items that were identified and measured belong to the Chaco Marsh Rat. We postulate that its occurrence is becoming less casual and is associated with the high climate variability and extreme events of flooding and drought that have affected the area in recent years. These events would favour the ingression and eventual establishment of these rodents in the study area. Fil:Courtalon, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lo Coco, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.