Results 111 to 120 of about 119,525 (294)

Forest disturbance and regeneration: a mosaic of discrete gap dynamics and open matrix regimes? [PDF]

open access: yes, 2014
Question: Recent research in boreal forest suggests that an ‘open matrix’ model may be more appropriate than the traditional model of spatially discrete gap dynamics for describing forest disturbance and regeneration, but what is the evidence from ...
Abd Latif   +85 more
core   +3 more sources

Taxonomic reappraisal of the mangrove genus Avicennia (Acanthaceae) in India

open access: yesNordic Journal of Botany, EarlyView.
A taxonomic reappraisal of the mangrove genus Avicennia in India was undertaken through extensive field surveys and critical examination of herbarium specimens. Three taxa, Avicennia alba, Avicennia marina subsp. marina, and Avicennia officinalis, are described in detail. A synonymic list was compiled using the World Checklist of Vascular Plants (WCVP)
Subrata Mondal, Saikat Naskar
wiley   +1 more source

Evaluating ICESat-2 and GEDI with Integrated Landsat-8 and PALSAR-2 for Mapping Tropical Forest Canopy Height

open access: yesRemote Sensing
Mapping forest canopy height is critical for climate modeling and forest management, and tropical forests present unique challenges for remote sensing due to their dense vegetation and complex structure.
Aobo Liu, Yating Chen, Xiao Cheng
doaj   +1 more source

Predictions of Tropical Forest Biomass and Biomass Growth Based on Stand Height or Canopy Area Are Improved by Landsat-Scale Phenology across Puerto Rico and the U.S. Virgin Islands

open access: yesRemote Sensing, 2017
Remotely-sensed estimates of forest biomass are usually based on various measurements of canopy height, area, volume or texture, as derived from LiDAR, radar or fine spatial resolution imagery. These measurements are then calibrated to estimates of stand
David Gwenzi   +4 more
doaj   +1 more source

The impact of lianas on tree regeneration in tropical forest canopy gaps: evidence for an alternative pathway of gap‐phase regeneration [PDF]

open access: yes, 2000
1 Regeneration in forest canopy gaps is thought to lead invariably to the rapid recruitment and growth of trees and the redevelopment of the canopy. Our observations, however, suggest that an alternate successional pathway is also likely, whereby gap ...
Carson, Walter P.   +2 more
core   +1 more source

Estimation of Forest Canopy Height Over Mountainous Areas Using Satellite Lidar

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2014
The full waveform data of the large-footprint Geoscience Laser Altimeter System (GLAS) on the Ice, Cloud, and land Elevation Satellite, together with airborne light detection and ranging (lidar) data, were employed to retrieve the basal-area weighted mean height (Lorey's height) over sloping terrain in the Qilian mountains region, western China.
Zhou Fang, Chunxiang Cao
openaire   +1 more source

Update on Ouratea cidiana Sastre (Ochnaceae), a microendemic species from the Amazon: enlightening the identity and conservation status

open access: yesNordic Journal of Botany, EarlyView.
Ouratea cidiana (Ochnaceae) is a microendemic shrub species from the Brazilian Amazonia, occurring along the banks of the Trombetas River and restricted to the Cachoeira Porteira region, in western Pará State. Since the original collection nearly forty years ago, no additional records have been made, which is concerning given the continuous decline in ...
Clebiana de Sá Nunes   +4 more
wiley   +1 more source

Drivers of remotely sensed tree height heterogeneity across spatial scales: Tree species diversity effects depend on local conditions and forest type

open access: yesEcological Indicators
Forests with high structural complexity provide a variety of ecosystem functions and services. They are further associated with greater ecosystem stability.
Elisabeth Rahmsdorf   +8 more
doaj   +1 more source

Lidar-Based Models of Understory Bird Habitat in a Tropical Forest [PDF]

open access: yes, 2011
Where a poorly understood group of wildlife species seems to be declining quickly, a rapid assessment of the species’ habitat requirements may be needed in order to make the most optimal management decisions possible.
Grimm, Amanda
core  

Serendipitous Data Following a Severe Windstorm in an Old-Growth Pine Stand [PDF]

open access: yes, 2014
Reliable dimensional data for old-growth pine-dominated forests in the Gulf Coastal Plain of Arkansas are hard to find, but sometimes unfortunate circumstances provide good opportunities to acquire this information.
Bragg, D. C., Riddle, J. D.
core   +3 more sources

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