Results 11 to 20 of about 29,108 (263)

Remotely sensed assessment of increasing chronic and episodic drought effects on a Costa Rican tropical dry forest

open access: yesEcosphere, 2021
Tropical dry forests (TDFs) have experienced pronounced droughts and increased temperatures for the last century. To assess whether these climatic shifts have influenced dry forest vegetation and ecosystem functioning, we integrated ground observations ...
Cho‐ying Huang   +5 more
doaj   +1 more source

From Host to Phage Metabolism: Hot Tales of Phage T4’s Takeover of E. coli

open access: yesViruses, 2018
The mechanisms by which bacteriophage T4 converts the metabolism of its E. coli host to one dedicated to progeny phage production was the subject of decades of intense research in many labs from the 1950s through the 1980s.
Elizabeth Kutter   +5 more
doaj   +1 more source

Functional Relationships Between Branch and Stem Wood Density for Temperate Tree Species in North America

open access: yesFrontiers in Forests and Global Change, 2020
Wood density is strongly related to key aspects of tree physiological performance. While many studies have examined wood density in different parts of trees, for a variety of reasons, there are very few studies that have compared within-tree density ...
David W. MacFarlane
doaj   +1 more source

Classifying Large Wildfires in the United States by Land Cover

open access: yesRemote Sensing, 2020
Fire is an ecological process that also has socio-economic effects. To learn more about fire occurrence, I examined relationships between land classes and about 12,000 spatially delineated large wildfires (defined here as uncontrolled fires ≥200 ha ...
Brice B. Hanberry
doaj   +1 more source

Microbial Turnover and Dispersal Events Occur in Synchrony with Plant Phenology in the Perennial Evergreen Tree Crop Citrus sinensis

open access: yesmBio, 2022
Emerging research indicates that plant-associated microbes can alter plant developmental timing. However, it is unclear if host phenology affects microbial community assembly.
Nichole A. Ginnan   +4 more
doaj   +1 more source

Functional Phenology of a Texas Post Oak Savanna from a CHRIS PROBA Time Series

open access: yesRemote Sensing, 2019
Remnant midwestern oak savannas in the USA have been altered by fire suppression and the encroachment of woody evergreen trees and shrubs. The Gus Engeling Wildlife Management Area (GEWMA) near Palestine, Texas represents a relatively intact southern ...
Michael J. Hill   +3 more
doaj   +1 more source

UHPLC-Q-Orbitrap-MS-Based Metabolomics Reveals Chemical Variations of Two Types of Rhizomes of Polygonatum sibiricum

open access: yesMolecules, 2022
The rhizomes of Polygonatum sibiricum are commonly consumed as food and also used as medicine. However, the metabolic profile of P. sibiricum has not been fully revealed yet. Recently, we developed a novel evergreen species of P. sibiricum.
Gelian Luo   +5 more
doaj   +1 more source

Mapping Clearances in Tropical Dry Forests Using Breakpoints, Trend, and Seasonal Components from MODIS Time Series: Does Forest Type Matter?

open access: yesRemote Sensing, 2016
Tropical environments present a unique challenge for optical time series analysis, primarily owing to fragmented data availability, persistent cloud cover and atmospheric aerosols.
Kenneth Grogan   +4 more
doaj   +1 more source

Cellulose in Foliage and Changes during Seasonal Leaf Development of Broadleaf and Conifer Species

open access: yesPlants, 2022
Stable isotope approaches are widely applied in plant science and many improvements made in the field focus on the analysis of specific components of plant tissues.
Zoltan Kern   +4 more
doaj   +1 more source

A sticky thicket of glue cells: A comparative morphometric analysis of colloblasts in 20 species of comb jelly (phylum Ctenophora)

open access: yesCiencias Marinas, 2020
Ctenophores in the class Tentaculata are distinct from Cnidarians in that they use sticky, not stinging, tentacles to capture and subdue their prey.
Nicholas D Leonardi   +2 more
doaj   +1 more source

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