Results 31 to 40 of about 7,380 (237)

Genomic Insights Into Species Delimitation and the Evolutionary History of Mimetic <i>Aletis</i> Moths (Lepidoptera, Geometridae) in the Afrotropics. [PDF]

open access: yesEcol Evol
We investigated the evolutionary history and species boundaries of diurnal Aletis moths in the Afrotropics using mitochondrial DNA and genome‐wide SNP data. Our results support five distinct species, with divergence dating back to 0.9 million years ago, influenced by climate‐driven isolation and habitat variation.
Lee KM   +9 more
europepmc   +2 more sources

A Screen for Gene Paralogies Delineating Evolutionary Branching Order of Early Metazoa

open access: yesG3: Genes, Genomes, Genetics, 2020
The evolutionary diversification of animals is one of Earth’s greatest marvels, yet its earliest steps are shrouded in mystery. Animals, the monophyletic clade known as Metazoa, evolved wildly divergent multicellular life strategies featuring ciliated ...
Albert Erives, Bernd Fritzsch
doaj   +1 more source

Questioning the rise of gelatinous zooplankton in the World's oceans [PDF]

open access: yes, 2012
During the past several decades, high numbers of gelatinous zooplankton species have been reported in many estuarine and coastal ecosystems. Coupled with media-driven public perception, a paradigm has evolved in which the global ocean ecosystems are ...
Acuña   +81 more
core   +4 more sources

Comparative algological and bacteriological examinations on biofilms developed on different substrata in a shallow soda lake [PDF]

open access: yes, 2008
According to the European Water Framework Directives, benthic diatoms of lakes are a tool for ecological status assessment. In this study, we followed an integrative sample analysis approach, in order to find an appropriate substratum for the water ...
A Cattaneo   +36 more
core   +1 more source

Hidden diversity of Ctenophora revealed by new mitochondrial COI primers and sequences

open access: yesMolecular Ecology Resources, 2021
The mitochondrial gene cytochrome‐c‐oxidase subunit 1 (COI) is useful in many taxa for phylogenetics, population genetics, metabarcoding, and rapid species identifications.
L. Christianson   +3 more
semanticscholar   +1 more source

Population genomic structure of the gelatinous zooplankton species Mnemiopsis leidyi in its nonindigenous range in the North Sea [PDF]

open access: yes, 2019
Nonindigenous species pose a major threat for coastal and estuarine ecosystems. Risk management requires genetic information to establish appropriate management units and infer introduction and dispersal routes. We investigated one of the most successful
Derycke, Sofie   +8 more
core   +1 more source

Calcisponges have a ParaHox gene and dynamic expression of dispersed NK homeobox genes [PDF]

open access: yes, 2014
This study was funded by the Sars Centre core budget to M. Adamska. Sequencing was performed at the Norwegian High Throughput Sequencing Centre funded by the Norwegian Research Council. O.M.R. and D.E.K.F.
A Saudemont   +27 more
core   +2 more sources

Topology-dependent asymmetry in systematic errors affects phylogenetic placement of Ctenophora and Xenacoelomorpha

open access: yesScience Advances, 2020
A data simulation approach shows that the contested origins of Ctenophora and Xenacoelomorpha are obscured by systematic errors. The evolutionary relationships of two animal phyla, Ctenophora and Xenacoelomorpha, have proved highly contentious ...
P. Kapli, M. Telford
semanticscholar   +1 more source

The abundance of microplastics in cnidaria and ctenophora in the North Sea.

open access: yesMarine Pollution Bulletin, 2021
Microplastic (MP) ingestion has been widely recorded in aquatic organisms, but few studies focus on cnidarians and ctenophores, which form a significant contribution to marine trophic interactions. Scyphozoans (Cyanea capillata, C.
R. Devereux   +3 more
semanticscholar   +1 more source

Environmental patterns and biomass distribution of gelatinous macrozooplankton. Three study cases in the South-western Atlantic Ocean

open access: yesScientia Marina, 2000
Periodic swarms or blooms of gelatinous macrozooplankton have a negative effect on many human activities such as tourism, fisheries, and industry, but for several reasons (sampling procedures, underestimation of their real abundance, etc.), they have ...
H. W. Mianzan, R. A. Guerrero
doaj   +1 more source

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