Results 21 to 30 of about 3,119 (211)

Uncertainties and risks in delimiting species of Cambeva (Siluriformes: Trichomycteridae) with single-locus methods and geographically restricted data [PDF]

open access: yesNeotropical Ichthyology, 2022
Cambeva contains species with complex taxonomy or poorly delimitated in terms of morphology and geopraphic distribution. We conducted an extensive review of Cambeva populations from coastal drainages of Southern to Southeastern Brazil to evaluate species
Laura M. Donin   +2 more
doaj   +1 more source

Genes Suggest Ancestral Colour Polymorphisms Are Shared across Morphologically Cryptic Species in Arctic Bumblebees [PDF]

open access: yes, 2015
email Suzanne orcd idCopyright: © 2015 Williams et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
A Bertsch   +107 more
core   +12 more sources

Species delimitation and microalgal cryptic diversity analysis of the genus Micractinium (Chlorophyta)

open access: yesВавиловский журнал генетики и селекции, 2022
In this article, the system of the green microalgal genus Micractinium, based on morphological, physiological, ecological and molecular data, is considered.
E. S. Krivina   +2 more
doaj   +1 more source

Enhancing species discovery and description in algal turfs: A case study in the green alga Pseudoderbesia (Bryopsidales). [PDF]

open access: yesJ Phycol
Abstract Algal turfs are assemblages consisting of small marine green, brown, and red algae on the scale of millimeters to a few centimeters. Due to their small size, they have been less intensively studied by macroalgal taxonomists, and they also fall outside the scope of microalgal taxonomists, who tend to focus on smaller, often unicellular, taxa ...
Hastings A   +4 more
europepmc   +2 more sources

A multilocus assessment reveals two new synonymies for East Asian Cyclommatus stag beetles (Coleoptera, Lucanidae) [PDF]

open access: yesZooKeys, 2021
Cyclommatus scutellaris Möllenkamp, 1912, Cyclommatus elsae Kriesche, 1921 and Cyclommatus tamdaoensis Fujita, 2010 are East Asian stag beetle species with long-debated taxonomic relationships due to high intraspecific morphological variability.
Jiao Jiao Yuan, Dan Chen, Xia Wan
doaj   +3 more sources

Metabarcoding data of mitochondrial cytochrome c oxidase subunit 1 gene from bulk community of aquatic organisms collected from Nara Prefecture, Japan

open access: yesData in Brief, 2022
Riverine metabarcoding data were obtained from the Takamigawa River, a tributary of the Kinokawa River, in Nara Prefecture (Central Honshu, Japan).
Kei Wakimura   +4 more
doaj   +1 more source

P2C2M.GMYC: An R package for assessing the utility of the Generalized Mixed Yule Coalescent model

open access: yesMethods in Ecology and Evolution, 2020
In clades that contain large numbers of undescribed species, DNA barcoding methods can serve as a first pass at identifying species limits. The General Mixed Yule Coalescent (GMYC) approach to species delimitation is accurate under certain conditions ...
E. M. Fonseca   +2 more
semanticscholar   +1 more source

Cryptic speciation in populations of the genus Aphyocharax (Characiformes: Characidae) from eastern Amazon coastal river drainages and surroundings revealed by single locus species delimitation methods

open access: yesNeotropical Ichthyology, 2021
Recent studies in eastern Amazon coastal drainages and their surroundings have revealed new fish species that sometimes exhibit little morphological differentiation (cryptic species).
Pâmella S. Brito   +7 more
doaj   +1 more source

Species delimitation of Margattea cockroaches from China, with seven new species (Blattodea, Ectobiidae, Pseudophyllodromiinae) [PDF]

open access: yesZooKeys, 2021
Nearly 450 Margattea specimens were collected from 27 locations in China and their morphology was examined. Then 68 Margattea COI sequences were obtained and used to carry out phylogenetic analyses as well as species delimitation analyses using General ...
Jia-Jun He   +4 more
doaj   +3 more sources

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