Results 111 to 120 of about 3,119 (211)

Cryptic species within the rotifer Lecane bulla (Rotifera: Monogononta: Lecanidae) from North America based on molecular species delimitation

open access: yesRevista Mexicana de Biodiversidad, 2020
The littoral rotifer Lecane bulla is one of the most eurytopic members of the Lecane genus and is found in a wide variety of water bodies around the world.
Alma Estrella García-Morales   +1 more
doaj   +1 more source

Integrative taxonomy reveals two new cryptic species of Hyphessobrycon Durbin, 1908 (Teleostei: Characidae) from the Maracaçumé and middle Tocantins River basins, Eastern Amazon region

open access: yesEuropean Journal of Taxonomy, 2020
Two new species, Hyphessobrycon frickei Guimarães, Brito, Bragança, Katz & Ottoni sp. nov. and H. geryi Guimarães, Brito, Bragança, Katz & Ottoni sp. nov., are herein described, based on seven different and independent species delimitation methods, and ...
Erick Cristofore Guimarães   +6 more
doaj   +1 more source

Antarctic bdelloid rotifers: diversity, endemism and evolution [PDF]

open access: yes, 2015
Antarctica is an isolated continent whose conditions challenge the survival of living organisms. High levels of endemism are now known in many Antarctic organisms, including algae, tardigrades, nematodes and microarthropods.
Convey, P.   +10 more
core   +2 more sources

How many cows are in the desert? Molecular phylogeny and species delimitation of the genus Gyriosomus (Coleoptera: Tenebrionidae: Pimeliinae) from the Atacama Desert

open access: yesSystematic Entomology, Volume 51, Issue 1, January‐March 2026.
The newly systematic rearrangement of Gyriosomus recognizes 9 clades, validates 21 taxonomical species and suggests 12 synonyms and 12 species candidates. Three taxonomical species were not evaluated. Polymorphisms, convergences and crypsis have been detected, and therefore morphology‐based taxonomy should be approached with caution. Ecological drivers
Simón Anguita‐Salinas   +7 more
wiley   +1 more source

Sexual species are separated by larger genetic gaps than asexual species in rotifers.

open access: yes, 2014
Why organisms diversify into discrete species instead of showing a continuum of genotypic and phenotypic forms is an important yet rarely studied question in speciation biology.
Barraclough, TG   +3 more
core   +1 more source

Evolutionary history of Podarcis tiliguerta on Corsica and Sardinia. [PDF]

open access: yes, 2017
BACKGROUND: Podarcis tiliguerta is a wall lizard endemic to the Mediterranean islands of Corsica and Sardinia. Previous findings of high mtDNA and morphological diversity have led to the suggestion that it may represent a species complex.
Brown, RP   +9 more
core   +1 more source

Diversity of Chewing Lice (Insecta: Phthiraptera) in the Indo‐Burma Biodiversity Hotspot

open access: yesJournal of Zoological Systematics and Evolutionary Research, Volume 2026, Issue 1, 2026.
The diversity of birds is well documented globally. However, the same attention has generally not been given to their parasites, which comprise many times their diversity. Here, we present data from a large‐scale survey of chewing lice found infesting birds in the Indo‐Burma biodiversity hotspot of western Yunnan, China.
Alexandra A. Grossi   +6 more
wiley   +1 more source

Planarian (Platyhelminthes, Tricladida) Diversity and Molecular Markers: A New View of an Old Group [PDF]

open access: yes, 2014
Planarians are a group of free-living platyhelminths (triclads) best-known largely due to long-standing regeneration and pattern formation research. However, the group"s diversity and evolutionary history has been mostly overlooked.
Riutort León, Marta   +1 more
core   +3 more sources

Species delimitation of Apharyngostrigea Ciurea, 1927 (Digenea: Diplostomoidea) based on morphology and molecular data from the Neotropical region of Mexico

open access: yesParasitology
The genus Apharyngostrigea comprises a group of diplostomoidean digeneans that parasitize birds of the family Ardeidae (herons), with approximately 20 species described worldwide.
Alejandra López-Jiménez   +2 more
doaj   +1 more source

Soup to tree: the phylogeny of beetles inferred by mitochondrial metagenomics of a Bornean rainforest sample [PDF]

open access: yes, 2015
In spite of the growth of molecular ecology, systematics and next-generation sequencing, the discovery and analysis of diversity is not currently integrated with building the tree-of-life.
Cockerill, Timothy D.   +6 more
core   +1 more source

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