Results 11 to 20 of about 337 (103)

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

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

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

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

Rahnella sp., a Dominant Symbiont of the Core Gut Bacteriome of Dendroctonus Species, Has Metabolic Capacity to Degrade Xylan by Bifunctional Xylanase-Ferulic Acid Esterase

open access: yesFrontiers in Microbiology, 2022
Rahnella sp. ChDrAdgB13 is a dominant member of the gut bacterial core of species of the genus Dendroctonus, which is one of the most destructive pine forest bark beetles. The objectives of this study were identified in Rahnella sp. ChDrAdgB13 genome the
Rosa María Pineda-Mendoza   +7 more
doaj   +1 more source

Variación biológica en las aráceas trepadoras

open access: yesActa Botanica Mexicana, 2021
Antecedentes y Objetivos: Las especies de Araceae son conocidas por sus distintas formas de vida; sin embargo, la terminología relacionada con este grupo genera confusiones conceptuales dentro de la comunidad científica.
Alma Patricia Bautista-Bello   +4 more
doaj   +1 more source

Bacteriome from Pinus arizonica and P. durangensis: Diversity, Comparison of Assemblages, and Overlapping Degree with the Gut Bacterial Community of a Bark Beetle That Kills Pines

open access: yesFrontiers in Microbiology, 2018
Symbioses between plants and microorganims have been fundamental in the evolution of both groups. The endophytic bacteria associated with conifers have been poorly studied in terms of diversity, ecology, and function. Coniferous trees of the genera Larix,
Roman Gonzalez-Escobedo   +4 more
doaj   +1 more source

Válvula aórtica cuadricúspide

open access: yesRevista Colombiana de Cardiología, 2023
La válvula aórtica cuadricúspide es una anomalía congénita poco común, la cual puede o no acompañarse de otras malformaciones cardiacas, y, en general, es diagnosticada de manera incidental.
Diego Posada-Ríos   +4 more
doaj   +1 more source

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