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Mostrando ítems 31-40 de 1980
Taxonomic delimitation in color polymorphic species of the South American grasshopper genus Diponthus Stål (Orthoptera, Romaleidae, Romaleini)
(Brill Academic Publishers, 2014-10)
The South American genus Diponthus Stål comprises species with cryptic and probably aposematic colorations. It belongs to a group of grasshoppers, tribe Romaleini, where color polymorphism is common. Morphometric techniques ...
Different lines of evidence used to delimit species in ticks: A study of the South American populations of Amblyomma parvum (Acari: Ixodidae)
(Elsevier Gmbh, 2016-10)
The goal of this work was to combine different lines of evidence besides that of molecular markers to delimit species in ticks when the molecular data are not totally congruent. Two groups (Argentina, Brazil) of South ...
Species delimitation of neotropical Characins (Stevardiinae): Implications for taxonomy of complex groups
(2019-06-01)
Accurate species delimitation is crucial for studies of phylogeny, phylogeography, ecology, conservation and biogeography. The limits of species and genera in the Characidae family are controversial due to its uncertain ...
Species delimitation in the Aloysia gratissima complex (Verbenaceae) following the phylogenetic species concept
(Wiley Blackwell Publishing, Inc, 2016-02)
The Aloysia gratissima complex is a group of 22 accepted, specific and infraspecific taxa, the boundaries of which are controversial. Various different authors have chosen different characters as criteria for delimiting ...
Solving a taxonomic puzzle: integrative taxonomy reveals new cryptic and polymorphic species of Oscarella in south-eastern Brazil (Homoscleromorpha : Oscarellidae)
(Csiro Publishing, 2022-08-18)
The sponge genus Oscarella is very important for the understanding of the early evolution of Metazoa, but the identification of its species is particularly difficult due to the absence of a skeleton and high polymorphism, ...
Parametric and non-parametric species delimitation methods result in the recognition of two new Neotropical woody bamboo species
(Molecular Phylogenetics and Evolution, 2015)
Identity and delimitation of the American species of Litsea Lam. (Lauraceae): a morphological approach.
(Plant Systematics and Evolution, 2009)
Molecular Phylogeny of Cryptonanus (Didelphidae: Thylamyini): Evidence for a recent and complex diversification in South American open biomes
(2021-09-01)
Systematic revisions of South American marsupials have contributed to our knowledge about genus and species diversity in the last decades, including studies of the most recently described genus Cryptonanus (Didelphidae), ...