Results 21 to 30 of about 40,020 (264)

Robert C. Dunnell's Systematics in prehistory at 50

open access: yesEvolutionary Human Sciences, 2022
The year 2021 marked the fiftieth anniversary of the publication of Robert C. Dunnell's (Free Press, 1971) diminutive yet dense Systematics in prehistory.
Felix Riede, Astolfo Araujo, Ben Marwick
doaj   +1 more source

Genital anatomy, jaw and radula of Guladentia subtussulcata (Helicoidea, Cepolidae), endemic to western Cuba [PDF]

open access: yesZooKeys, 2022
This study provides the first data on the genital anatomy, jaw and radula of Guladentia subtussulcata (L. Pfeiffer, 1863). The auxiliary copulatory organ of this species is very peculiar, similar to that of Jeanneretia L.
Maike Hernández   +2 more
doaj   +3 more sources

A systematic review of systematic reviews of homeopathy [PDF]

open access: yesBritish Journal of Clinical Pharmacology, 2002
Homeopathy remains one of the most controversial subjects in therapeutics. This article is an attempt to clarify its effectiveness based on recent systematic reviews. Electronic databases were searched for systematic reviews/meta‐analysis on the subject. Seventeen articles fulfilled the inclusion/exclusion criteria.
openaire   +2 more sources

Natura 2000 habitat of Mt. Argentario promontory (southern Tuscany, Italy)

open access: yesJournal of Maps, 2018
The Mt. Argentario promontory (southern Tuscany, Italy) is a protected area hosting habitats and species of European importance. The Mt. Argentario Natura 2000 habitat map (1:10,000) was compiled from photo-interpretation and field surveys, integrated ...
Daniele Viciani   +5 more
doaj   +1 more source

Persistence of multiple patterns and intraspecific polymorphism in multi-species Müllerian communities of net-winged beetles

open access: yesFrontiers in Zoology, 2019
Background In contrast to traditional models of purifying selection and a single aposematic signal in Müllerian complexes, some communities of unprofitable prey contain members with multiple aposematic patterns.
Matej Bocek   +3 more
doaj   +1 more source

Genealogical Systematics

open access: yesGenealogy, 2023
Genealogical research usually begins with the discovery of affinity among individual humans. Such kinship is induced by direct observation, as well as by hearsay (indirect observation) that can be independently confirmed.
Arnold G. Kluge
doaj   +1 more source

DNA Barcoding studies on Thrips in India: Cryptic species and Species complexes

open access: yesScientific Reports, 2017
Thrips are one of the major sucking pest and vector of plant viruses causing huge economic loss in agriculture. The accurate identification of thrips is crucial for effective pest management strategies.
Kaomud Tyagi   +7 more
doaj   +1 more source

Complete chloroplast of Micractinium pusillum CCAP 231/1 (chlorellaceae, trebouxiophyceae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
The chloroplast genome of Micractinium pusillum CCAP 231/1 was completely sequenced. This chloroplast genome has 115,638 bp in length and consists of 111 genes including 81 protein-coding, 4 rRNA, and 26 tRNA genes.
Kyeong Mi Kim   +8 more
doaj   +1 more source

Ecological opportunity may facilitate diversification in Palearctic freshwater organisms: a case study on hydrobiid gastropods

open access: yesBMC Evolutionary Biology, 2018
Background Differences in species richness among phylogenetic clades are attributed to clade age and/or variation in diversification rates. Access to ecological opportunity may trigger a temporary increase in diversification rates and ecomorphological ...
Diana Delicado   +2 more
doaj   +1 more source

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