Results 101 to 110 of about 48,547 (310)

Deriving land surface phenology indicators from CO2 eddy covariance measurements

open access: yesEcological Indicators, 2013
Abstract Recent progress of CO2 eddy covariance (EC) technique and accumulation of measurements offer an unprecedented perspective to study the land surface phenology (LSP) in a more objective way than previously possible by allowing the actual photosynthesis measurement – gross primary productivity (GPP).
Alemu Gonsamo   +2 more
openaire   +1 more source

Urban‐driven homogenization of aquatic subsidy size structure cascades to riparian predator communities

open access: yesOikos, EarlyView.
The export of emergent aquatic insects is a critical energy subsidy for terrestrial food webs. While urbanization is known to alter stream communities, its effects on the size structure of these insect subsidies and the subsequent consequences for riparian predators remain poorly understood.
Charles Gagnon   +2 more
wiley   +1 more source

Use of AMSR-E microwave satellite data for land surface characteristics and snow cover variation

open access: yesData in Brief, 2016
This data article contains data related to the research article entitled “Global land cover classification based on microwave polarization and gradient ratio (MPGR)” [1] and “Microwave polarization and gradient ratio (MPGR) for global land surface ...
Mukesh Singh Boori   +3 more
doaj   +1 more source

Large-effect flowering time mutations reveal conditionally adaptive paths through fitness landscapes in Arabidopsis thaliana. [PDF]

open access: yes, 2019
Contrary to previous assumptions that most mutations are deleterious, there is increasing evidence for persistence of large-effect mutations in natural populations.
Cooper, Martha D   +6 more
core  

Complex responses of spring vegetation growth to climate in a moisture-limited alpine meadow. [PDF]

open access: yes, 2016
Since 2000, the phenology has advanced in some years and at some locations on the Qinghai-Tibetan Plateau, whereas it has been delayed in others. To understand the variations in spring vegetation growth in response to climate, we conducted both regional ...
Cao, Xujuan   +11 more
core   +1 more source

Land Surface Phenology in Global Change Studies

open access: yes
As of this writing, there are two global phenology products in the twentyfirst century at 500 m spatial resolution. Here we present a comparative analysis of the mid-green-up phenometric from these standard VIIRS and MODIS products for the year 2022. We evaluate the results by ecoregion and biome and report linear regression results to compare on the ...
Kirsten M. de Beurs   +2 more
openaire   +2 more sources

Tracing holotype trajectories: Mapping the movement of the most valuable herbarium specimens

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Global efforts to protect biodiversity depend on fair access to key plant specimens. This study examines the distribution of 119,361 holotypes—unique herbarium specimens used to formally describe new plant species. By linking collection and storage data, we found that holotypes are increasingly held closer to their places of origin, particularly in ...
Dominik Tomaszewski   +2 more
wiley   +1 more source

Land surface phenologies and seasonalities using cool earthlight in mid-latitude croplands

open access: yesEnvironmental Research Letters, 2013
Phenology deals with timing of biotic phenomena and seasonality concerns temporal patterns of abiotic variables. Studies of land surface phenology (LSP) and land surface seasonality (LSS) have long been limited to visible to near infrared (VNIR ...
W G Alemu, G M Henebry
doaj   +1 more source

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