Olímpio Ana Priscila Medeiros, Lima Amanda Cristiny da Silva, Mendes Samira Brito, da Natividade Beatriz Dybas, Fraga Elmary da Costa, Barros Maria Claudene, Sampaio Iracilda
Federal University of Pará, Belém, Brazil Federal University of Pará Belém Brazil.
Maranhão State University, São Luís, Brazil Maranhão State University São Luís Brazil.
Biodivers Data J. 2024 Feb 12;12:e114261. doi: 10.3897/BDJ.12.e114261. eCollection 2024.
The species has been observed in both the Pampa and Spinal ecoregions of Argentina. Researchers have underscored that distinguishing from other species within the same genus relies primarily on craniometric and molecular analyses. Morphological measurements alone do not offer a clear differentiation between and other members of this genus.This study aims to document the presence of within the Brazilian ecoregion, focusing on its morphological, morphometric and genetic characteristics. By undertaking a comprehensive examination, we seek to contribute valuable insights into the distribution and differentiation of in this region.
specimens exhibited a forearm length ranging from 39.9 to 40.08 mm. The average intraspecific divergence was 1.2%, with specimens from the Argentine Pampas clustering in the same clade with a 98% bootstrap support and a posterior probability of: Regarding dorsal colouration, the specimens displayed fur with two bands-a Snow White base colour and apex colours ranging from Olive Brown, Broccoli Brown, Wood Brown to Yellowish-Brown. This marks the first record of in Brazil, expanding its distribution 1,300 km northeastwards into the Curitiba, Paraná, Atlantic Forest Ecoregion. The findings contribute valuable information on the distribution, morphology, morphometrics and genetics of this species.
该物种在阿根廷的潘帕斯草原和脊柱生态区均有发现。研究人员强调,将其与同一属内的其他物种区分开来主要依靠颅骨测量和分子分析。仅靠形态测量无法明确区分该物种与该属的其他成员。本研究旨在记录该物种在巴西生态区的存在情况,重点关注其形态、形态测量和遗传特征。通过进行全面的研究,我们旨在为该物种在该地区的分布和分化提供有价值的见解。
标本的前臂长度在39.9至40.08毫米之间。种内平均分歧为1.2%,来自阿根廷潘帕斯草原的标本聚集在同一进化枝中,自展支持率为98%,后验概率为:关于背部颜色,标本的皮毛有两条带——底色为雪白,顶端颜色从橄榄棕、西兰花棕、木棕到黄棕不等。这是该物种在巴西的首次记录,其分布向东北方向扩展了1300公里,进入巴拉那州库里蒂巴的大西洋森林生态区。这些发现为该物种的分布、形态、形态测量和遗传学提供了有价值的信息。