A new species of Acantholeberis (Crustacea, Branchiopoda) suggests an ancient geographic distribution of the genus in South America

European Journal of Taxonomy

卷:821

Cristina Stenert¹  Raquel Fontoura Freiry¹  Francisco Diogo R. Sousa²  Lourdes Maria A. Elmoor-Loureiro²  Leonardo Maltchik³  Juan Pablo Álvarez-Silva⁴  Paloma M. Lopes⁵  Reinaldo Luiz Bozelli⁵ 

[1] Laboratory of Ecology and Conservation of Aquatic Ecosystems, UNISINOS University, Unisinos Av. 950, São Leopoldo, RS 93022-750, Brazil;

[2] Laboratório de Taxonomia Animal, Unidade Acadêmica Especial de Ciências Biológicas, Universidade Federal de Jataí – UFJ, BR 364 km 195 n°3800, CEP 75801-615, Jataí, GO, Brazil;

[3] Programa de Pós-Graduação em Biologia de Ambientes Aquáticos Continentais, Universidade Federal do Rio Grande, FURG, Av. Itália, Km 8, CEP 96.203-900, Rio Grande, RS, Brazil;

[4] Universidad Nacional de Colombia. Bogotá, Colombia;

[5] Universidade Federal do Rio de Janeiro, Departamento de Ecologia, Av. Carlos Chagas Filho, 373, Ilha do Fundão, Cidade Universitária, Rio de Janeiro, RJ, Brazil;

关键词: altitude;    biogeography;    limbs;    morphology;    taxonomy;   

DOI  :  10.5852/ejt.2022.821.1797

来源: DOAJ

【 摘 要 】

Acantholeberis smirnovi Paggi & Herrera-Martinez, 2020 (Cladocera: Acantholeberidae) was recently described from Andean habitats in South America. The presence of a population on the eastern coast of the continent brought the hypothesis of a new Neotropical species different from A. smirnovi. This hypothesis was confirmed from morphological, ecological and biogeographic evidence. Acantholeberis accolismaris Sousa, Elmoor-Loureiro & Álvarez-Silva sp. nov. differs from A. smirnovi in the morphology of the head, the valves and the limbs (especially the second and third limbs). Species of Acantholeberis are adapted to live in acid water bodies, with A. accolismaris sp. nov. presenting the same ecological requirements. However, the new species is adapted to live in temporary ponds near the Atlantic Ocean in Brazil in altitudes ranging between 4 and 15 meters above sea level. Considering that Acantholeberidae is an ancient taxon with a pre-Mesozoic origin, geological and environmental changes may have been relevant to speciation and to the observed biogeographic pattern of species of Acantholeberis in Neotropics.

【 授权许可】

Unknown