Results 1 to 10 of about 65,617 (346)

Tracking the phenology of photosynthesis using carotenoid sensitive and near-infrared reflectance vegetation indices in a temperate evergreen and mixed deciduous forest.

open access: yesNew Phytologist, 2020
Photosynthetic phenology is an important indicator of annual gross primary productivity (GPP). Assessing photosynthetic phenology remotely is difficult for evergreen conifers as they remain green year-round.
Christopher Y. S. Wong   +3 more
semanticscholar   +1 more source

Bacteriophage T4 Infection of Stationary Phase E. coli: Life after Log from a Phage Perspective

open access: yesFrontiers in Microbiology, 2016
Virtually all studies of phage infections investigate bacteria growing exponentially in rich media. In nature, however, phages largely encounter non-growing cells.
Elizabeth Martin Kutter   +5 more
doaj   +1 more source

Deciduous and evergreen oaks show contrasting adaptive responses in leaf mass per area across environments.

open access: yesNew Phytologist, 2020
• Increases in leaf mass per area (LMA) are commonly observed in response to environmental stresses and are achieved through increases in leaf thickness and/or leaf density.
D. Sancho-Knapik   +11 more
semanticscholar   +1 more source

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

Detecting Multi-ChannelWireless Microphone User Emulation Attacks in White Space with Noise

open access: yesEAI Endorsed Transactions on Cognitive Communications, 2014
Cognitive radio networks (CRNs) are susceptible to primary user emulation (PUE) attacks. Conventional PUE attack detection approaches consider television broadcasting as the primary user. In this work, however, we study a special kind of PUE attack named
Dan Shan   +3 more
doaj   +1 more source

Seasonal variation in the canopy color of temperate evergreen conifer forests

open access: yesNew Phytologist, 2020
Summary Evergreen conifer forests are the most prevalent land cover type in North America. Seasonal changes in the color of evergreen forest canopies have been documented with near‐surface remote sensing, but the physiological mechanisms underlying these
B. Seyednasrollah   +17 more
semanticscholar   +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

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

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