scholarly journals Stereoscopic imaging with spherical panoramas for measuring tree distance and diameter under forest canopies

2018 ◽  
Vol 91 (5) ◽  
pp. 662-673 ◽  
Author(s):  
Bo-Hao Perng ◽  
Tzeng Yih Lam ◽  
Mei-Kuei Lu
Keyword(s):  
Forest Canopies ◽  
Stereoscopic Imaging ◽  
Tree Distance

scholarly journals How does leaf functional diversity affect the light environment in forest canopies? An in-silico biodiversity experiment

2021 ◽  
Vol 440 ◽  
pp. 109394
Author(s):  
Elena Plekhanova ◽  
Pascal A. Niklaus ◽  
Jean-Philippe Gastellu-Etchegorry ◽  
Gabriela Schaepman-Strub
Keyword(s):  
Functional Diversity ◽  
In Silico ◽  
Light Environment ◽  
Forest Canopies

scholarly journals Macroclimate drives growth of hair lichens in boreal forest canopies

2020 ◽  
Author(s):  
Nathan H. Phinney ◽  
Yngvar Gauslaa ◽  
Kristin Palmqvist ◽  
Per‐Anders Esseen
Keyword(s):  
Boreal Forest ◽  
Forest Canopies

Mapping Snowpack Depth beneath Forest Canopies Using Airborne Lidar

2004 ◽  
Vol 70 (3) ◽  
pp. 323-330 ◽  
Author(s):  
Chris Hopkinson ◽  
Mike Sitar ◽  
Laura Chasmer ◽  
Paul Treitz
Keyword(s):  
Airborne Lidar ◽  
Forest Canopies

Canopy and edge activity of bats in a quaking aspen (Populus tremuloides) forest

2012 ◽  
Vol 90 (7) ◽  
pp. 798-807 ◽  
Author(s):  
T.W. Pettit ◽  
K.T. Wilkins
Keyword(s):  
Populus Tremuloides ◽  
High Frequency ◽  
Regression Tree ◽  
Low Frequency ◽  
Tree Height ◽  
Quaking Aspen ◽  
Activity Levels ◽  
Forest Canopies ◽  
Bat Activity ◽  
Cart Analysis

Characteristics of edges affect the behavior of species that are active in and near edges. Forest canopies may provide edge-like habitat for bats, though bat response to edge orientation has not been well examined. We sampled bat activity in quaking aspen ( Populus tremuloides Michx.) forest canopies and edges in Heber Valley, Utah, during summer 2009 using Anabat detectors. Categorization and regression tree (CART) analysis of echolocation characteristics (e.g., frequency, duration) identified two guilds based on characteristic frequency (i.e., high- and low-frequency guilds). We used linear regression to compare characteristics of canopy and edge vegetation (e.g., tree height, diameter at breast height) to bat activity levels. Activity levels of high-frequency bats did not respond differentially to edge vegetation; low-frequency bat activity seemed to respond to canopy height. Activity levels of high-frequency bats were significantly greater than low-frequency bats in both edges and canopies. We detected significantly more bat activity in forest edges than in forest canopies, indicating the importance of edges to bats in forests.

scholarly journals Spectroscopic Remote Sensing of Non-Structural Carbohydrates in Forest Canopies

2015 ◽  
Vol 7 (4) ◽  
pp. 3526-3547 ◽  
Author(s):  
Gregory Asner ◽  
Roberta Martin
Keyword(s):  
Remote Sensing ◽  
Forest Canopies
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