Distribution and Status of the Extant Xenarthrans (Mammalia: Xenarthra) in the Southern cone Mesopotamian Savanna, Argentina

Bauni, Valeria; Capmourteres, Virginia; Homberg, Marina; Zuleta, Gustavo A.

doi:10.5537/020.014.0105

Cited by 7 publications

(7 citation statements)

References 13 publications

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“…Contudo, neste país, na Reserva Natural de Iberá, a espécie é alvo de um projeto de reabilitação e reintrodução, onde entre os anos de 2007 e 2012 foram reintroduzidos 18 indivíduos (Di Blanco et al, 2016). Além disso, a espécie possui apenas quatro registros próximos a região de fronteira entre Misiones (Argentina) e Rio Grande do Sul (Brasil) entre os anos 2006 e 2012, sendo estes decorrentes de monitoramento participativo (Bauni et al, 2013).…”

Section: Annexunclassified

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2021

Edentata: The Newsletter of the IUCN/SSC Anteater, Sloth and Ar

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Dorsal carapace and osteoderm morphological features have traditionally been widely used in both extinct and extant armadillo systematics. However, the intraspecific variability at the carapace level represents a little studied aspect. In this contribution, we analyzed several dorsal carapaces of Priodontes maximus with the purpose of recording such variability. As a result, we describe a total of seven structures concerning the dorsal carapace osteoderm configuration, including distinct terminations of the osteoderm rows, and the most frequent aberrant shapes of the osteoderms. Though the same type of structure can be usually found in several specimens, its frequency and precise location within the carapace are unique to each individual. In this sense, besides improving anatomical descriptions, the identification of these structures can be potentially implemented as a complementary method to help recognize specific individuals being tracked. Moreover, it can represent a very effective recognition method even a long time after death. Given the general decreasing trend of P. maximus populations, it is important to develop as many monitoring tools as possible, in order to support conservation programs for this species.

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Section: Annexunclassified

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2021

Edentata: The Newsletter of the IUCN/SSC Anteater, Sloth and Ar

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“…Approximate Bayesian computation (ABC) methods were used for more accurate demographic inference (Csilléry et al 2010), using DIYABC v1.0.4.46beta (Cornuet et al 2008). Based on historical records (Bauni and Homberg 2015;Werneck et al 2011), two demographical scenarios were defined for the studied area, modelled through simple two-epoch models of population size change, without fixing the direction of change (i.e., each scenario allowed for both population expansion and population decline). The first scenario assumed a recent demographic change (one to five generations ago) corresponding to strong habitat transformation due to known human activity in the region (Bauni et al 2013).…”

Section: Demographic Historymentioning

confidence: 99%

“…Based on historical records (Bauni and Homberg 2015;Werneck et al 2011), two demographical scenarios were defined for the studied area, modelled through simple two-epoch models of population size change, without fixing the direction of change (i.e., each scenario allowed for both population expansion and population decline). The first scenario assumed a recent demographic change (one to five generations ago) corresponding to strong habitat transformation due to known human activity in the region (Bauni et al 2013). The second scenario reflected an ancient demographic change (100 to 700 generations ago) associated with the expansion-contraction dynamics described in SDTFs (Prado and Gibbs 1993;Pennington et al 2000;Werneck et al 2011).…”

Section: Demographic Historymentioning

confidence: 99%

Demographic history and spatial genetic structure in a remnant population of the subtropical tree Anadenanthera colubrina var. cebil (Griseb.) Altschul (Fabaceae)

Goncalves

García

Heuertz

et al. 2019

Annals of Forest Science

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& Key message A remnant population of Anadenanthera colubrina var. cebil in Northern Argentina showed a mixed mating system, high genetic diversity, and moderate spatial genetic structure, which was stronger in saplings than in adults. Demographic history analyses revealed an ancient population expansion. Despite high genetic diversity, high inbreeding suggests caution in the use of this stand as seed source. & Context Information on fine-scale spatial genetic structure (FSGS) and demographic history is essential to determine which mechanisms are responsible for population persistence and evolution. This is particularly important in fragmented biomes, such as the seasonally dry tropical forests. & Aims To assess the level of genetic diversity and population genetic structure in a remnant population of A. colubrina var. cebil, and to evaluate the influence of historical and contemporary environmental change on the genetic constitution of this population. & Methods Eight microsatellites were typed in 60 adults and 59 saplings. The existence of (non-spatial) genetic clusters was evaluated using STRUCTURE and PCAs. FSGS was evaluated by kinship analyses and sPCA. MCMCglmm models were used to provide insights into factors underlying FSGS. Demographic history was studied using bottleneck statistics and approximate Bayesian computation. & Results We found high levels of genetic diversity and high inbreeding. Genetic structure was stronger in saplings than in adult trees, probably due to assortative mating, and was not explained by altitude or DBH. Demographic analyses suggested an ancient population expansion. & Conclusion Patterns of inbreeding and relatedness suggest a mixed mating system. High genetic diversity and moderate genetic structure suggest long-term population viability. High inbreeding suggests caution when using this stand as a source of material for reforestation.

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“…KEYWORDS: anatomy, morphology, ovary, Priodontes maximus, uterus. (WETZEL, 1985;ANACLETO & MARINHO-FILHO, 2001;BAUNI et al, 2013).…”

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confidence: 99%

AVALIAÇÃO MACROSCÓPICA DO SISTEMA GENITAL FEMININO DO TATUCANASTRA (Priodontes maximus – Kerr, 1792) – ESTUDO DE CASO

Domingos¹,

Fernandes²,

Santos³

et al. 2015

Enciclopédia Biosfera

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Distribution and Status of the Extant Xenarthrans (Mammalia: Xenarthra) in the Southern cone Mesopotamian Savanna, Argentina

Abstract: BioOne Complete (complete.BioOne.org) is a full-text database of 200 subscribed and open-access titles in the biological, ecological, and environmental sciences published by nonprofit societies, associations, museums, institutions, and presses.

Cited by 7 publications

References 13 publications

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Demographic history and spatial genetic structure in a remnant population of the subtropical tree Anadenanthera colubrina var. cebil (Griseb.) Altschul (Fabaceae)

AVALIAÇÃO MACROSCÓPICA DO SISTEMA GENITAL FEMININO DO TATUCANASTRA (Priodontes maximus – Kerr, 1792) – ESTUDO DE CASO

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