Results 21 to 30 of about 3,009,572 (249)

Effect of tree species on soil organic carbon and total nitrogen in a mixed central Zagrosian forest [PDF]

open access: yesمجله جنگل ایران, 2020
The aim of this study was to determine the possible difference in the amount of organic carbon and total nitrogen in the soil under the crown of tree species in a semi-arid forest at the level of a single tree.
N. Khorshidi, A. Soltani, M. Pajouhesh
doaj  

Effect of forest fire on tree diversity and regeneration in the forests of Uttarakhand, Western Himalaya, India

open access: yesFrontiers in Forests and Global Change, 2023
The objective of this study was to investigate the impact of forest fires on tree diversity and their regeneration in three fire-prone forests of Uttarakhand, India.
Himanshu Bargali   +6 more
doaj   +1 more source

Aboveground Biomass Along an Elevation Gradient in an Evergreen Andean–Amazonian Forest in Ecuador

open access: yesFrontiers in Forests and Global Change, 2022
The aim of this research was to assess how aboveground biomass (AGB) changes along an altitudinal gradient in evergreen Andean–Amazonian forests [Evergreen Lower Montane Forest, northeastern Cordillera of the Andes; Evergreen Piedmont Forest (EPF ...
Byron Maza   +3 more
doaj   +1 more source

Current state of knowledge on the extinction risk of Malaysian tree species: Proximate needs to mitigate loss

open access: yesPlants, People, Planet, 2023
Societal Impact Statement As one of the world's top megadiverse countries for tree species, Malaysia remains committed towards reducing tree population loss and species extinction.
Lillian S. L. Chua   +4 more
doaj   +1 more source

Temporal genomics in Hawaiian crickets reveals compensatory intragenomic coadaptation during adaptive evolution

open access: yesNature Communications
Theory predicts that compensatory genetic changes reduce negative indirect effects of selected variants during adaptive evolution, but evidence is scarce.
Xiao Zhang   +10 more
doaj   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Evaluation level of tree diversity in the Hyrcanian forests using complex structural diversity index (Case study: beech-hornbeam type, Nav-e Asalem, Gilan) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2017
Stand structure and species diversity are two useful parameters for complex assessment of forest biodiversity, and provide important information for management and decision making for appropriate silvicultural system.
Peiman Farhadi   +2 more
doaj   +1 more source

Disentangling regional and local tree diversity in the Amazon

open access: yes, 2009
A-09-13International audienceWe analyzed the most extensive data set of tree inventory plots spread over the complete Amazon basin and Guiana shield. We aimed to separate the regional and local tree alpha-diversity to investigate the drivers of diversity
Stropp, Juliana   +4 more
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Developing Fluopyram as a Tool to Combat Beech Leaf Disease in Managed Landscapes and Nurseries

open access: yesJournal of Nematology
Beech leaf disease (BLD), caused by the anguinid nematode Litylenchus crenatae mccannii (Lcm), has recently emerged as a severe threat to beech trees (Fagus spp.) in eastern North America. In response, the scientific community has accelerated research on
Borden Matthew A.   +7 more
doaj   +1 more source

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