Results 91 to 100 of about 118,557 (264)

Inequalities in intraspecific plant–lemur interactions drive seed dispersal patterns

Oikos, EarlyView.
Biotic interactions occur between individuals and accumulate to shape species‐level interaction structure across a community. Skewed interaction structures, where a few individuals are highly connected and most have few interactions, are increasingly identified at the individual‐level.
Jadelys Tonos, Hasinavalona Rakotoarisoa, Onja H. Razafindratsima   +2 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

Ecological Indicators
Forests with high structural complexity provide a variety of ecosystem functions and services. They are further associated with greater ecosystem stability.
Elisabeth Rahmsdorf, Daniel Doktor, Hannes Feilhauer, Benjamin Brede, Laura Dienstbach, Nico Eisenhauer, Anke Hildebrandt, Nadja Rüger, Maximilian Lange   +8 more
doaj   +1 more source

Tree damage and microclimate of forest canopies along a hurricane-impact gradient in Cusuco National Park, Honduras [PDF]

, 2014
Past studies of large, infrequent wind disturbances have shown that topographical, biological and meteorological factors interact to create complex damage patterns to forest ecosystems. However, the extent to which some of these factors change the forest
BACON, BAKER, Daniel Lucius Kelly, DAVIES-COLLEY, DE GOUVENAIN, DONALD, ENSOR, KING, LEWIS, MARTIN, MCCALLUM, RICHARDS, SALDAÑA, STRECK, Sven Peter Batke   +14 more
core   +1 more source

Species identity and spatial scale drive context‑dependent tree diversity effects in a Finnish forest experiment

Oikos, EarlyView.
Tree species diversity is known to affect tree growth and leaf traits, which in turn can influence various ecosystem processes. However, the reported direction of these tree diversity effects is inconsistent, indicating that their outcomes depend strongly on ecological context.
Juri A. Felix, Philip C. Stevenson, Julia Koricheva   +2 more
wiley   +1 more source

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

Remote 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

Remote 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, Eileen H. Helmer, Xiaolin Zhu, Michael A. Lefsky, Humfredo Marcano-Vega   +4 more
doaj   +1 more source

Ecology and co-existence of two endemic day gecko (Phelsuma) species in Seychelles native palm forest [PDF]

, 2011
In island ecosystems, reptiles play diverse ecological roles as a result of niche broadening, which increases potential niche overlap between species. Ecological niche partitioning is a means of reducing direct competition between coexisting species and ...
Bassett, Crawford, Edwards, Fleischmann, Gerlach, Hansen, Hansen, Harmon, Kaiser-Bunbury, Kier, Losos, MacArthur, Myers, Olesen, Pianka, Procter, Procter, Proctor, Radtkey, Raxworthy, Rocha, Rodda, Savage, Schoener, Schoener, Thorpe, Vesey-Fitzgerald, Watson, Whitaker, Whittaker, Williams   +30 more
core   +1 more source

Foraging and movement flexibility shape seed dispersal by an arboreal primate in a modified landscape

Oikos, EarlyView.
As habitats change, the effectiveness of animal‐mediated seed dispersal increasingly depends on animal responses to altered structure and resources. With habitat loss and degradation accelerating across the tropics, understanding how dispersers' foraging behavior and movement influence seed removal and deposition is critical to promoting forest ...
Anaid Cárdenas‐Navarrete, Sarie Van Belle, Onja H. Razafindratsima   +2 more
wiley   +1 more source

Canopy Height Estimation in French Guiana with LiDAR ICESat/GLAS Data Using Principal Component Analysis and Random Forest Regressions

Remote Sensing, 2014
Estimating forest canopy height from large-footprint satellite LiDAR waveforms is challenging given the complex interaction between LiDAR waveforms, terrain, and vegetation, especially in dense tropical and equatorial forests.
Ibrahim Fayad, Nicolas Baghdadi, Jean-Stéphane Bailly, Nicolas Barbier, Valéry Gond, Mahmoud El Hajj, Frédéric Fabre, Bernard Bourgine   +7 more
doaj   +1 more source

Predicting growing stock volume of Eucalyptus plantations using 3-D point clouds derived from UAV imagery and ALS data [PDF]

, 2019
Estimating forest inventory variables is important in monitoring forest resources and mitigating climate change. In this respect, forest managers require flexible, non-destructive methods for estimating volume and biomass.
Botequim, Brigite, Cardil, Adrian, Cozensa, Diogo N., Diaz-Varela, Ramón, González-Ferreiro, Eduardo, Guerra-Hernández, Juan, Silva, Carlos Alberto, Silva, Margarida, Soares, Paula   +8 more
core   +2 more sources