scholarly journals Bryophytes in fir waves: Forest canopy indicator species and functional diversity decline in canopy gaps

2019 ◽  
Vol 30 (2) ◽  
pp. 235-246
Author(s):  
Monica B. Berdugo ◽  
Martin Dovciak
Keyword(s):  
Functional Diversity ◽  
Indicator Species ◽  
Forest Canopy ◽  
Canopy Gaps

Selection of forest canopy gaps by male Cerulean Warblers in West Virginia

2014 ◽  
Vol 126 (2) ◽  
pp. 288-297 ◽  
Author(s):  
Kelly A. Perkins ◽  
Petra Bohall Wood
Keyword(s):  
West Virginia ◽  
Forest Canopy ◽  
Canopy Gaps ◽  
Cerulean Warblers ◽  
Selection Of

Describing forest canopy gaps efficiently, accurately, and objectively: New prospects through the use of terrestrial laser scanning

2015 ◽  
Vol 213 ◽  
pp. 23-32 ◽  
Author(s):  
Dominik Seidel ◽  
Christian Ammer ◽  
Klaus Puettmann
Keyword(s):  
Laser Scanning ◽  
Forest Canopy ◽  
Terrestrial Laser Scanning ◽  
Canopy Gaps

scholarly journals Cerulean warbler selection of forest canopy gaps

2006 ◽  
Author(s):  
Kelly A. Perkins
Keyword(s):  
Forest Canopy ◽  
Canopy Gaps ◽  
Cerulean Warbler ◽  
Selection Of

MICROSITE CONTROLS ON TREE SEEDLING ESTABLISHMENT IN CONIFER FOREST CANOPY GAPS

Ecology ◽  
1997 ◽  
Vol 78 (8) ◽  
pp. 2458-2473 ◽  
Author(s):  
Andrew N. Gray ◽  
Thomas A. Spies
Keyword(s):  
Seedling Establishment ◽  
Forest Canopy ◽  
Canopy Gaps ◽  
Conifer Forest ◽  
Tree Seedling ◽  
Tree Seedling Establishment

Deviation from power law, spatial data of forest canopy gaps, and three lattice models

2006 ◽  
Vol 198 (3-4) ◽  
pp. 399-408 ◽  
Author(s):  
Robert Schlicht ◽  
Yoh Iwasa
Keyword(s):  
Power Law ◽  
Spatial Data ◽  
Forest Canopy ◽  
Lattice Models ◽  
Canopy Gaps

Butterfly behavioural responses to natural Bornean tropical rain-forest canopy gaps

2011 ◽  
Vol 28 (1) ◽  
pp. 45-54 ◽  
Author(s):  
James S. Pryke ◽  
Sven M. Vrdoljak ◽  
Paul B. C. Grant ◽  
Michael J. Samways
Keyword(s):  
Rain Forest ◽  
Tropical Rain Forest ◽  
Forest Canopy ◽  
Canopy Gaps ◽  
Tree Canopy ◽  
Canopy Openness ◽  
Butterfly Species ◽  
Behavioural Responses ◽  
Light Heterogeneity ◽  
Closed Canopy

Abstract:Natural tree canopy gaps allow sunlight to penetrate to the forest floor, a major environmental component and resource for many tropical rain-forest species. We compare here how butterflies use sunny areas created by the natural gaps in canopies in comparison with adjacent closed-canopy areas. We chose butterflies as our focal organisms as they are taxonomically tractable and mobile, yet habitat sensitive. Previous studies have shown that butterfly diversity in tropical forests responds to varying degrees of canopy openness. Here we assess butterfly behavioural responses to gaps and equivalent sized closed-canopy patches. Butterfly occupancy time and behaviour were simultaneously observed 61 times in gaps and 61 times in equivalent sized closed-canopy patches across four sites in a tropical rain forest in northern Borneo. Out of the 20 most frequently recorded species, 12 were more frequently recorded or spent more time in gaps, four occurred more frequently in closed-canopy areas, and four showed no significant differences. Overall agonistic, basking, patrolling and resting were more common in gaps compared with the closed canopy. Many butterfly species have complex behavioural requirements for both gaps and closed canopies, with some species using these different areas for different behaviours. Each butterfly species had particular habitat requirements, and needed both canopy gaps and closed canopy areas for ecological and behavioural reasons, emphasizing the need for natural light heterogeneity within these systems.

scholarly journals The impact of lianas on tree regeneration in tropical forest canopy gaps: evidence for an alternative pathway of gap-phase regeneration

2000 ◽  
Vol 88 (4) ◽  
pp. 655-666 ◽  
Author(s):  
Stefan A. Schnitzer ◽  
James W. Dalling ◽  
Walter P. Carson
Keyword(s):  
Tropical Forest ◽  
Forest Canopy ◽  
Alternative Pathway ◽  
Canopy Gaps ◽  
Tree Regeneration ◽  
Gap Phase ◽  
The Impact ◽  
Tropical Forest Canopy

scholarly journals Characterizing spatiotemporal variations of forest canopy gaps using aerial laser scanning data

2021 ◽  
Vol 104 ◽  
pp. 102588
Author(s):  
Zihan Du ◽  
Guang Zheng ◽  
Guochun Shen ◽  
L. Monika Moskal
Keyword(s):  
Laser Scanning ◽  
Forest Canopy ◽  
Canopy Gaps ◽  
Spatiotemporal Variations ◽  
Aerial Laser Scanning

scholarly journals Seasonal Dynamics of Tropical Forest Vegetation in Ngoc Linh Nature Reserve, Vietnam Based on UAV Data

2021 ◽  
pp. 376-389
Author(s):  
Nguyen Dang Hoi ◽  
Ngo Trung Dung
Keyword(s):  
Tropical Forests ◽  
Seasonal Dynamics ◽  
Forest Canopy ◽  
Nature Reserve ◽  
Canopy Gaps ◽  
Dry Season ◽  
Image Resolution ◽  
Broadleaf Forest ◽  
Dry Seasons ◽  
Management And Conservation

Seasonal dynamics in tropical forests are closely related to the variation in forest canopy gaps. The canopy gaps change continuously in shape and size between the rainy and dry seasons, leading to the variation in the vegetative indicators. To monitor the variation of the canopy gaps, UAVs were used to collect datas in the mentioned tropical forests at an altitude of over 1,000m in Ngoc Linh Nature Reserve, Vietnam with a post-processing image resolution of about 8cm, which allows the detection of relatively small gaps. The analysis results at 10 squares of 1 ha showed a decrease in the area of ​​ canopy gaps from the rainy season in September 2019 to the dry season of May 2020. The mixed broad-leaved or broadleaf forest dominates with a greater variation, when the area of ​​the gaps decreases significantly. The variation in forest canopy gaps and vegetative indicators are closely related to the high differentiation of terrain, the seasonal and the dry season climatic characteristics. The fluctuation of the vegetation cover affects the habitats of the species under the forest canopy such as animals, birds and soil fauna. This is one of the scientific bases that contributes to the management and conservation of flora and fauna biodiversity, especially in mountainous tropical forests such as Ngoc Linh Nature Reserve.

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