The Vulnerable giant anteater<i>Myrmecophaga tridactyla</i>: new records from the Atlantic Forest highlands and an overview of its occurrence in protected areas in Brazil

Passos, Fernando C.; Mello, Michel C.H.; Isasi-Catalá, Emiliana; Mello, Raphael C.; Bernardi, Itiberê P.; Varzinczak, Luiz H.; Lima, Camila S.

doi:10.1017/s0030605316000740

Cited by 7 publications

(6 citation statements)

References 11 publications

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“…Both species were usually detected alone, but occasionally females were observed carrying pups on their back, as reported by Desbiez & Medri (2010), Figel et al (2015) and Passos et al (2016). Anteaters are usually nocturnal, although they occasionally engage in diurnal activity (Rodrigues et al, 2008).…”

Section: Discussionmentioning

confidence: 97%

“…Although giant anteater studies can be found in Brazil (Miretzki & Goss Braga, 2014;Passos et al, 2016;Mamalis et al, 2018) and the North of Argentina (Perez Jimeno & Llarin Amaya, 2009;Quiroga et al, 2016), data of these species in Paraguay is still scarce or even absent (De La Sancha et al, 2017;Smith & Rios, 2018). Most of the Paraguayan Chaco (a convergence of Pantanal, Cerrado, Dry and Humid Chaco ecoregions) is located within the area of the M. tridactyla geographic distribution, however, our study area is located a few kilometers from the possibly extinct zone towards the southern limit (Miranda et al, 2014a).…”

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confidence: 99%

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Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay

Laino¹,

Musálem

Caballero-Gini³

et al. 2020

Iheringia, Sér. Zool.

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ABSTRACT Species tend to be less abundant at the limits of their geographic distribution. Giant and lesser anteaters have their southernmost limits in Argentina and Paraguay, where scarce information exists regarding their ecology and conservation. We present a study carried out in the Paraguay River floodplain, in an area dedicated to cattle rearing using native grasses in a subtropical flooded savanna associated with naturally occurring forest islets, wetlands and palm groves. Using camera-traps within three different forest types, we estimated parameters related to habitat preference, social behavior and activity patterns of both species. Results show that capture success was greater in the Floodable sub-humid forest islets (FSF), compared to other types of forests: Riparian forests associated with wetlands (W-RF) and Mesoxerophytic semi-deciduous forests dominated by Schinopsis balansae (MXF). Most detections corresponded to solitary anteaters, although mother-young pairs were occasionally observed during summer. Both species showed a nocturnal and crepuscular activity pattern with a peak of records around midnight. Myrmecophaga tridactyla was detected between 11°C and 26°C, while Tamandua tetradactyla occurred between 15°C and 23°C. Future research that incorporates systematically taken data in other different habitats, including grasslands and shrublands, during all seasons of the year is recommended.

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Section: Discussionmentioning

confidence: 97%

mentioning

confidence: 99%

Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay

Laino¹,

Musálem

Caballero-Gini³

et al. 2020

Iheringia, Sér. Zool.

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“…The area surrounding the EOO is severely affected by extensive commercial plantations and urban settlements, with only c. 50% of the ecoregion unaffected (Armenteras et al, 2003; Sánchez-Cuervo et al, 2012; Angulo et al, 2019). This limits connectivity (Bright, 1993), which is important for the persistence of a species (Passos et al, 2016). Maintenance, extension or connection of protected areas, connecting the relict habitats, could help to protect C. vestitus (Cofré & Marquet, 1999; Amori & Gippoliti, 2003; Armenteras et al, 2003).…”

Section: Discussionmentioning

confidence: 99%

Assessment of the rarity and conservation status of the Colombian endemic brown hairy dwarf porcupine Coendou vestitus

Torres-Martínez

Ramírez-Chaves

Noguera‐Urbano

et al. 2020

Oryx

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The brown hairy dwarf porcupine Coendou vestitus is a poorly studied Andean species endemic to Colombia. Its current Red List category is contradictory: globally it is categorized as Data Deficient but in Colombia it is categorized as Vulnerable. This contradiction has limited the implementation of conservation programmes. We evaluate the level of rarity of the species and provide consolidated information for a new assessment of its Red List status. We reviewed literature, photographs, and voucher specimens in natural history collections. Using the confirmed records, we estimated the extent of occurrence (EOO) based on the minimum convex polygon and the area of occupancy (AOO) summing the area of grid squares occupied by the species. We found that C. vestitus is very rare, with a small range, low estimated population density, occurrence in only one habitat type and small body size. The species has an EOO of 3,323 km2 and an AOO of 24 km2, based on six confirmed localities, all on the western slopes of the Eastern Cordillera, in the central Andean region of Colombia. Based on the species' rarity, restricted distribution, and threats to its natural habitat, we recommend its categorization as Endangered on the IUCN Red List. This will help delineate research and conservation efforts for this porcupine, which has a highly restricted range and inhabits the threatened Andean forest.

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“…The giant anteater ( Myrmecophaga tridactyla ) is the largest of the Neotropical vermilinguans and the largest representative of the family Myrmecophaga (Gaudin et al, 2018; Medri et al, 2006; Smith, 2007) and has presented a wide geographical distribution, occurring from northern Central America to southern South America (Passos et al, 2017; Smith, 2007). These species are myrmecophagous since their diet consists basically of ants and termites (Naples, 1999).…”

Section: Introductionmentioning

confidence: 99%

Computed tomography and anatomy of the abdominal structures in the giant anteater (Myrmecophaga tridactyla)

Oliveira

Schimming

Costa

et al. 2022

Anat Histol Embryol

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The giant anteater (Myrmecophaga tridactyla) is the largest of the Neotropical vermilinguans. This animal is the second mammal most frequently run over on the roads of Cerrado biome, Brazil. Therefore, it is pivotal to know the anatomy of this species to contribute to the clinical care of these animals. Thus, the aim of this study was to identify the anatomical structures in the abdominal region of the giant anteater using computed tomography (CT). For this, the tomographic analysis was performed in sequential order in the craniocaudal direction in five giant anteaters. Moreover, four giant anteater corpses were used for anatomical studies, where two corpses were sectioned in cross sections of approximately 3 cm each, and two animals were dissected to identify the abdominal organs. The association between CT and anatomical study allowed the visualization of anatomical structures found in the abdominal cavity, such as the topographic anatomy facilitates the identification of organs on CT images. The findings of this study demonstrated that CT is a good technique to provide detailed information about the anatomical structures in the abdominal cavity and that this study can be used as CT and anatomical reference for veterinarians who care for wild animals.

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The Vulnerable giant anteaterMyrmecophaga tridactyla: new records from the Atlantic Forest highlands and an overview of its occurrence in protected areas in Brazil

Cited by 7 publications

References 11 publications

Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay

Anteaters on the edge: giant and lesser anteaters (Myrmecophaga tridactyla and Tamandua tetradactyla) at their geographic distributional limits in Paraguay

Assessment of the rarity and conservation status of the Colombian endemic brown hairy dwarf porcupine Coendou vestitus

Computed tomography and anatomy of the abdominal structures in the giant anteater (Myrmecophaga tridactyla)

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