Updating the distribution range of the maned wolf Chrysocyon brachyurus in Argentina
M. MARCEL A OROZ C O,NIC OLÁS CARUSO,
M.BELÉN NATA L I N I,KARINA IACON I S MARCELA TITT A RELLI,CE C IL IA P. JUAREZ,ANDRÉS PAU T A SS O CONRADO ROS A C HE R,PAULA GONZAL E Z CI CCIA and L UCÍA S OL ER
Abstract The maned wolf Chrysocyon brachyurus, the fourth largest canid, is categorized as Near Threatened on the IUCN Red List. The objectives of this study were to up- date information on the occurrence of this species in Argentina, compare the current distribution to that previ- ously described for 1988–2008, and indicate the areas in which the species is exposed to particular hazards. We cre- ated a database that included 1,051 new records of C. bra- chyurus for 2009–2021, in addition to records for 1988– 2008 that had not been reported previously.We calculated the area of occupancy of the species in Argentina to be 500,000 km2. Most of the new records of C. brachyurus are in the Chaco Seco, Espinal and Pampas ecoregions. Our findings indicate a current area of occupancy 61% higher than that calculated from records for 1988–2008. However the location and frequency of reported threats and the intense environmental transformation that charac- terizes the areas for which we obtained new records suggest
M. MARCELA OROZCO* (Corresponding author,
orcid.org/orcid.org/0000-
0003-1677-4310,
marcelaorozco.vet@
gmail.com) Instituto de Ecología, Genética y Evolución de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina
NICOLÁSCARUSO† (
orcid.org/0000-0002-8571-9123),KARINA IACONIS† ( orcid. org/0000-0001-7127-3485)and LUCÍA SOLER† (
M. BELÉN NATALINI (
orcid.org/0000-0002-9041-4228) Estación Biológica
Corrientes, Centro de Ecología Aplicada del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas, San Cayetano, Corrientes, Argentina
MARCELA TITTARELLI (
orcid.org/0000-0002-8016-1503) Subdirección General de Ecología, Ministerio de la Producción, Ciencia y Tecnología, Santa Fe, Argentina
CECILIA P. JUAREZ ( ANDRÉS PAUTASSO (
orcid.org/0000-0001-8394-2885) Centro de Ecología y
Biodiversidad del Chaco Argentino, Facultad de Recursos Naturales, Universidad Nacional de Formosa, Formosa, Argentina
orcid.org/0000-0002-9326-0105) Museo Florentino
Ameghino, Santa Fe, Argentina CONRADO ROSACHER (
Ambiente, Córdoba, Argentina PAULA GONZALEZ CICCIA (
orcid.org/0000-0002-9986-8613) Agencia Córdoba
orcid.org/0000-0003-1217-991X) Dirección de
Conservación, Educación e Investigación, Fundación Temaikén, Escobar, Argentina
*Also at: Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina †Also at: Instituto de Ciencias Biológicas y Biomédicas del Sur, Universidad Nacional del Sur, Bahía Blanca, Buenos Aires, Argentina
Received 25 May 2022. Revision requested 7 July 2022. Accepted 13 October 2022. First published online 20 December 2022.
orcid.org/0000-0002-1181-
0071) Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Buenos Aires, Argentina
counterintuitive implications for the conservation of the species because of increased human–wildlife interactions. Our study reveals the need for systematic research to improve the understanding of the ecological processes that affect the maned wolf in Argentina, and will aid in the development of conservation strategies for the species.
Keywords Argentina, Chrysocyon brachyurus, ecoregions, hazard, maned wolf, South America, spatial distribution
IUCN Red List (Paula & DeMatteo, 2015). In Argentina it was categorized as Endangered until 2019, then recategor- ized as Vulnerable (Cirignoli et al., 2019) for non-genuine reasons related to new information available since the pre- vious assessment (IUCN, 2022). Habitat loss is considered one of the main threats facing the maned wolf, in addition to road kills, illegal hunting and diseases (Soler et al., 2005; González Ciccia et al., 2010; Orozco et al., 2014, 2015; Paula & DeMatteo, 2015). In 2018, data published previously (Queirolo et al., 2011; Torres et al., 2013) were used to model the distribution range of the maned wolf, with the results suggesting that the most favourable areas for the species are in south-eastern and central Brazil, southern Paraguay and north-eastern Argentina (Coelho et al., 2018). Here we update existing information on the range of C. brachyurus in Argentina, report new records and com- pare the current distribution to that reported previously. We used the latest published distribution of the species
T
(Queirolo et al., 2011; Coelho et al., 2018) as a baseline to gen- erate a database of new records of the maned wolf in Argentina for 2009–2021. We also added records for 1988– 2008 not reported by Queirolo et al. (2011). We obtained data through a bibliographical review that encompassed peer-reviewed articles, local publications and grey literature (Muzzachiodi, 2007; Massoia et al., 2012; Mannise, 2013; Lodeiro Ocampo et al., 2020; Nagy-Reis et al., 2020; Nigro et al., 2020; SIB, 2022;Mac Allister et al., 2021). Data collec- tion included confirmed sightings and tracks (our own or provided by local collaborators), individuals rescued in urban areas, museum and zoo records, and records in peer- reviewed articles and government reports. To differentiate records representing individuals exposed to hazards from those representing free-living maned wolves, we grouped
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (
https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is unaltered and is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use or in order to create a derivative work. Oryx, 2023, 57(2), 248–251 © The Author(s), 2022. Published by Cambridge University Press on behalf of Fauna & Flora International doi:10.1017/S0030605322001272
he maned wolf Chrysocyon brachyurus, the fourth lar- gest canid, is categorized as Near Threatened on the
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