Results 21 to 30 of about 876 (157)

Sensitivity and tolerance of Riparian arthropod communities to altered water resources along a drying river. [PDF]

open access: yesPLoS One, 2014
Rivers around the world are drying with increasing frequency, but little is known about effects on terrestrial animal communities. Previous research along the San Pedro River in southeastern AZ, USA, suggests that changes in the availability of water ...
McCluney KE, Sabo JL.
europepmc   +8 more sources

Molecular phylogeny, ecology and multispecies aggregation behaviour of bombardier beetles in Arizona. [PDF]

open access: yesPLoS One, 2018
Aggregations of conspecific animals are common and have been documented in most phyla. Multispecies aggregations are less common and less well studied. Eight species of Brachinus beetles -famous for their unique, highly effective, chemical defense-regularly settle together form large diurnal multispecies aggregations in dark, moist areas in riparian ...
Schaller JC   +5 more
europepmc   +5 more sources

Effects of Predator Species and Size on Prey Escape Success Through the Digestive Tract. [PDF]

open access: yesEcol Evol
Adults of the aquatic beetle Regimbartia attenuata can survive passage through the digestive tracts of six predator (frog) species, including a non‐native bullfrog. Their active movement through the gut likely facilitates their escape through the cloaca, irrespective of predator species or size.
Sugiura S.
europepmc   +2 more sources

Comparative and Phylogenetic Analyses of Mitochondrial Genomes in Carabidae (Coleoptera: Adephaga). [PDF]

open access: yesEcol Evol
In this study, six complete mitochondrial genomes (mitogenomes) from the genus Harpalus are reported. Additionally, 13 cases of suspected misidentifications in public Carabidae mitogenomes from GenBank were identified, with potential corrections suggested.
Zhu P   +8 more
europepmc   +2 more sources

The molecular mechanisms of defensive-grade organic acid biosynthesis in ground beetles. [PDF]

open access: yesInsect Mol Biol
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.
Rork AM, Xu S, Attygalle A, Renner T.
europepmc   +2 more sources

North American Free Trade Under Attack: Newsprint is just the tip of the iceberg [PDF]

open access: yesThe School of Public Policy Publications, 2018
Canada is now getting a good look at just how aggressively protectionist the Trump administration in the U.S. is ready to act. It has hit Canadian newsprint exports with punishing tariffs based on unjustified claims that the Canadian industry is both ...
Eugene Beaulieu
doaj   +4 more sources

A Comprehensive Exploration of Bioluminescence Systems, Mechanisms, and Advanced Assays for Versatile Applications. [PDF]

open access: yesBiochem Res Int
Bioluminescence has been a fascinating natural phenomenon of light emission from living creatures. It happens when the enzyme luciferase facilitates the oxidation of luciferin, resulting in the creation of an excited‐state species that emits light. Although there are many bioluminescent systems, few have been identified.
Dunuweera AN   +2 more
europepmc   +2 more sources

Accurate Magneto‐Driven Multi‐Dimensional Droplet Manipulation

open access: yesAdvanced Functional Materials, Volume 33, Issue 9, February 23, 2023., 2023
Based on the in‐deep research on the mechanism of horizontal transport and vertical droplet capture/release, the noncontact magnetic micropillars array is designed to achieve 3D droplet controllable manipulation for transportation of long‐distance, across‐obstacle, and other severe working conditions.
Xueshan Jing   +6 more
wiley   +1 more source

Differences between poison and venom: An attempt at an integrative biological approach

open access: yesActa Zoologica, Volume 102, Issue 4, Page 337-350, October 2021., 2021
Abstract We discuss the use of the terms venom and poison, in the context of integrative biology, with particular emphasis on behaviour and natural history. Our purpose is to reach a broad scientific audience, especially that dedicated to zoology. The meaning of the two terms is reviewed from the secretory perspective, mainly focussed on the reptiles ...
Carlos Jared   +2 more
wiley   +1 more source

X‐ray microtomography and phylogenomics provide insights into the morphology and evolution of an enigmatic Mesozoic insect larva

open access: yesSystematic Entomology, Volume 46, Issue 3, Page 672-684, July 2021., 2021
A new, morphologically unique lacewing larva from Cretaceous amber of Myanmar (Kachin state) is described and rendered using X‐ray phase‐contrast microtomography. The phylogenetic analysis integrating morphological and genomic data from extant and extinct taxa recovers this larva near antlions, corroborating the Cretaceous as an evolutionary ...
Davide Badano   +11 more
wiley   +1 more source

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