Results 21 to 30 of about 2,259 (147)

Toward a Biocultural Synthesis of the Peopling of the Americas: Introduction to the Special Issue. [PDF]

open access: yesAm J Biol Anthropol
ABSTRACT This article introduces the special issue Toward a Biocultural Synthesis of the Peopling of the Americas, which brings together contributions that explore the origins and diversity of Indigenous populations across North, Central, and South America and the Caribbean. The volume grew out of an invited symposium held at the 90th Annual Meeting of
Menéndez LP, Hubbe M.
europepmc   +2 more sources

Herbivory in Myrtillocactus geometrizans (Cactaceae): Do Parasitoids Provide Indirect Defense or a Direct Advantage? [PDF]

open access: yesPlants, 2022
Plants respond to herbivory in diverse, complex ways, ranging from avoidance or tolerance to indirect defense mechanisms such as attracting natural enemies of herbivores, i.e., parasitoids or predators, to strengthen their defense.
Alicia Callejas-Chavero   +3 more
doaj   +2 more sources

Recovering European River Invertebrate Communities Homogenize or Differentiate Depending on Anthropogenic Stress. [PDF]

open access: yesGlob Chang Biol
(a) European river invertebrate communities showed an average increase in local richness over time (1994–2023), indicating partial local recovery following the alleviation of anthropogenic stress (e.g., point‐source pollution). However, this local recovery was not accompanied by increases in β‐diversity, likely due to persistent, unaddressed stressors,
Cortés-Guzmán D   +9 more
europepmc   +2 more sources

Acoustic Communication in Dendroctonus adjunctus Blandford (Curculionidae Scolytinae): Description of Calls and Sound Production Mechanism [PDF]

open access: yesInsects
The acoustic communication system (ACS) in bark beetles has been studied mainly in species of the genera Dendroctonus, Ips and Polygraphus. Specifically, ACS of the roundheaded pine beetle, Dendroctonus adjunctus, has been little studied.
León L. Cerrillo-Mancilla   +2 more
doaj   +2 more sources

Comparative metabarcoding and biodiversity of gut-associated fungal assemblages of Dendroctonus species (Curculionidae: Scolytinae) [PDF]

open access: yesFrontiers in Microbiology
The genus Dendroctonus is a Holarctic taxon composed of 21 nominal species; some of these species are well known in the world as disturbance agents of forest ecosystems.
Rosa María Pineda-Mendoza   +5 more
doaj   +2 more sources

Molecular clocks, biogeography and species diversity in Herichthys with evaluation of the role of Punta del Morro as a vicariant brake along the Mexican Transition Zone in the context of local and global time frame of cichlid diversification [PDF]

open access: yesPeerJ, 2020
Using molecular dated phylogenies and biogeographic reconstructions, the species diversity, biogeography and time frame of evolution of the genus Herichthys were evaluated.
Fabian Pérez-Miranda   +3 more
doaj   +2 more sources

Evolution and functional role prediction of the CYP6DE and CYP6DJ subfamilies in Dendroctonus (Curculionidae: Scolytinae) bark beetles

open access: yesFrontiers in Molecular Biosciences, 2023
Dendroctonus-bark beetles are natural components and key ecological agents of coniferous forests. They spend most of their lives under the bark, where they are exposed to highly toxic terpenes present in the oleoresin.
J. Manuel Quijano-Barraza   +5 more
doaj   +1 more source

Metabarcoding of mycetangia from the Dendroctonus frontalis species complex (Curculionidae: Scolytinae) reveals diverse and functionally redundant fungal assemblages

open access: yesFrontiers in Microbiology, 2022
Dendroctonus-bark beetles are associated with microbes that can detoxify terpenes, degrade complex molecules, supplement and recycle nutrients, fix nitrogen, produce semiochemicals, and regulate ecological interactions between microbes.
Karina Vazquez-Ortiz   +6 more
doaj   +1 more source

Gut transcriptome of two bark beetle species stimulated with the same kairomones reveals molecular differences in detoxification pathways

open access: yesComputational and Structural Biotechnology Journal, 2022
Dendroctonus bark beetles are the most destructive agents in coniferous forests. These beetles come into contact with the toxic compounds of their host's chemical defenses throughout their life cycle, some of which are also used by the insects as ...
Verónica Torres-Banda   +5 more
doaj   +1 more source

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