Results 61 to 70 of about 18,836 (239)

Towards DNA metabarcoding‐based haplotype for monitoring terrestrial arthropod communities

open access: yesInsect Conservation and Diversity, EarlyView.
The wocDNA metabarcoding includes robust sampling, wocDNA genomic extraction and library preparation. High‐throughput sequencing (HTS) followed by bioinformatic processing for quality control. The creation of a community matrix from haplotypes for ecological diversity and phylogenetic analyses.
Nancy Gálvez‐Reyes   +2 more
wiley   +1 more source

The molecular mechanisms of defensive‐grade organic acid biosynthesis in ground beetles

open access: yesInsect Molecular Biology, EarlyView.
Formic acid and methacrylic acid are the primary defensive chemicals in the pygidial gland secretions of Platynus angustatus and Pterostichus moestus, respectively. Comparative transcriptomics suggests the folate cycle and valine catabolism may be involved in the biosynthesis of formic acid and methacrylic acid, respectively.
Adam M. Rork   +3 more
wiley   +1 more source

Identification of orb-web spider species and their food source through environmental DNA analysis

open access: yesJournal of Ecology and Environment
Spiders play a vital role in agricultural ecosystems by capturing and preying on small insects, thereby controlling the pests around crops. However, without directly collecting the specimen, it is challenging to accurately determine the species of the ...
Keonhee Kim, Seung Tae Kim
doaj   +1 more source

The loss of the urea cycle and ornithine metabolism in different insect orders: An omics approach

open access: yesInsect Molecular Biology, EarlyView.
Among urea cycle enzymes, only the nitric oxide synthase gene is universally present across insect genomes. All Hemiptera species lack the enzymes needed to convert citrulline to arginine, and some also lack the pathway from arginine to ornithine. Putrescine and spermidine synthesis is conserved in all insects, but aphids lack the capability to produce
Jessica Cristina Silva Martins   +7 more
wiley   +1 more source

A Novel Crustavirus as a Candidate Aetiology of Tail Fan Necrosis in New Zealand Red Rock Lobsters, Jasus edwardsii

open access: yesJournal of Fish Diseases, EarlyView.
ABSTRACT Tail fan necrosis (TFN) is a shell disease affecting spiny lobsters' outer integument, with significant implications for the health and commercial viability of red rock lobsters (Jasus edwardsii) in New Zealand. Despite its impact, the potential role of a microbial agent in TFN remains poorly understood.
Rebecca M. Grimwood   +6 more
wiley   +1 more source

Gene Flow Disruption and Population Declines in a Soil Arthropod in Fragmented Habitats

open access: yesMolecular Ecology, EarlyView.
ABSTRACT The intensification of land use over past millennia has accelerated habitat loss and fragmentation. This is hypothesized to lead to reductions in population sizes and restrictions in gene flow, processes that amplify genetic drift with profound negative impacts on species and populations.
Tammy Ai Tian Ho   +8 more
wiley   +1 more source

On the relations of the groups of Arthropoda

open access: yesAnnals and Magazine of Natural History, 1887
(1887). On the relations of the groups of Arthropoda. Annals and Magazine of Natural History: Vol. 19, No. 113, pp. 396-396.
openaire   +4 more sources

THE ARTHROPODA OF AUSTRALIAN CAVES [PDF]

open access: yesAustralian Journal of Entomology, 1967
ABSTRACTThe Arthropoda of Australian Caves are reviewed and assigned to four ecological categories: trogloxenes, first and second level troglophiles, and troglobites. It is shown that Australia has few troglobitic species and this supports an earlier suggestion that extensive secondary extinction of cavernicoles occurred during the Pleistocene and ...
openaire   +2 more sources

The enigmatic case of Lipoptena sp. in the Bosco della Mesola Nature Reserve (Italy)

open access: yesMedical and Veterinary Entomology, EarlyView.
This is the first report of Lipoptena andaluciensis in Italy, confirmed morphologically and genetically. The presence of L. andaluciensis in Italy dates back many years; it was found on cervids in lowland habitats. A re‐examination of the previous report of the Italian L. fortisetosa is needed.
Federica Usai   +4 more
wiley   +1 more source

The first annotated checklist of parasites infecting the one-humped camel, Camelus dromedarius (Artiodactyla: Camelidae), of Saudi Arabia between 1950-2021

open access: yesJournal of Parasite Science
Based on the published works of camels in Saudi Arabia, this study is the first checklist of parasites infecting the one-humped camel, Camelus dromedarius in Saudi Arabia between 1950-2021.
Haitham Alnaqeb
doaj   +1 more source

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