Alouatta guariba. Categorización 2019 de los mamíferos de Argentina según su riesgo de extinción.

Agostini, Ilaria; Holzmann, Ingrid; Oklander, Luciana Inés; Peker, Silvana; Pavé, Romina; Kowalewski, Martín M.

doi:10.31687/saremlr.19.117

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“…The brown howler monkey, Alouatta guariba, is endemic to the Atlantic Forest, one of the largest primates and the one with the widest distribution in this biome. It occurs in eight states along eastern Brazil -Rio Grande do Sul, Santa Catarina, Parana, São Paulo, Rio de Janeiro, Minas Gerais, Espıŕito Santo, and Bahia (Bicca-Marques et al, 2018;Neves et al, 2018), while in Argentina it is only present in the northeastern province of Misiones (Agostini et al, 2019). There is a persistent controversy about the existence of two different taxa.…”

Section: Introductionmentioning

confidence: 99%

“…The species is increasingly impacted by loss and modification of its native habitat, hunting, trafficking for pet trade and diverse threats associated with infrastructure and urbanizationinjuries or deaths due to vehicle collisions, electrocutions, and dog attacks (Agostini et al, 2019;Jerusalinsky et al, 2021;Chaves et al, 2022). Although howler monkeys are resilient and still present in fragmented landscapes and small impoverished forest remnants (Bicca-Marques et al, 2020), the indiscriminate deforestation and destruction of forests, besides the growing exposure to other threats in anthropized areas could severely threaten their survival in the medium and long term (Chaves et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Alouatta guariba was included in the International Union for the Conservation of Nature's (IUCN) Red List of Threatened Species in the 1990's, being currently categorized as Vulnerable (Jerusalinsky et al, 2021), and has been listed five times (2012-2022) as one of the 25 most endangered primates of the world, first at subspecies level (A. guariba guariba - Neves et al, 2017) and later as species (Buss et al, 2019;Oklander et al, 2022a). In Argentina, the situation is particularly alarming, with an estimated population between 20 and 50 individuals exclusively in the province of Misiones, and the species is categorized as Critically Endangered (Agostini et al, 2019; Ministerio De Ambiente y Desarrollo Sostenible de Argentina -MADySResolution 316, 2021).…”

Section: Introductionmentioning

confidence: 99%

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Restoration of Alouatta guariba populations: building a binational management strategy for the conservation of the endangered brown howler monkey of the Atlantic Forest

Oklander,

Rheingantz,

Rossato

et al. 2024

Front. Conserv. Sci.

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The brown howler monkey (Alouatta guariba) is endemic to the Atlantic Forest of eastern Brazil and northeastern Argentina, threatened by extinction due to habitat loss and fragmentation, and hunting. Its reduced and isolated populations dramatically decreased and suffered local extinctions after recent yellow fever outbreaks, recommending the species risk uplist from Vulnerable to Endangered. In Brazil, the species occurs along eight states in sparse populations, including some large protected areas, and is being uplisted to Endangered. Following the National Action Plan for Conservation of the Atlantic Forest Primates and the Maned-sloth, and applying the Guidelines for Reintroductions and other Conservation Translocations (IUCN/CTSG), the Ex Situ Guidelines (IUCN/CPSG) and the One Plan Approach (IUCN/CPSG), a workshop was held on August 2021 to evaluate the need, requisites and roles of an integrated Population Management Program for A. guariba. Such program was developed in June 2022 defining the objectives of (i) restore in situ populations from ex situ populations, prioritizing populations in higher risk to prevent local extinctions, and (ii) establish an ex situ insurance population. This in situ – ex situ integrated management program was approved by ICMBio in February 2023, with actions recommended for all states along the species distribution. In Argentina, the species is Critically Endangered, with a remaining population of 20-50 individuals. Following the National Plan for Primate Conservation in Argentina, in a process similar to that in Brazil, two workshops were held in 2022/2023 to evaluate and define management actions for the long-term recovery of A. guariba. The priorities indicated were (i) reintroduction in ten potential areas in Misiones – due to a lower risk when compared to reinforcement of remaining populations, and (ii) establishing an ex situ management program in Argentina – still non-existent. The progressive collaboration between the initiatives of both countries is promoting the exchange of experiences and the integration of strategies. Here we summarize the planning and management carried out in Brazil and Argentina, highlighting the need for integrated measures. We debate on the progress and challenges, proposing next steps for developing and implementing a binational population management program for the conservation of the brown howler monkey.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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