Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Canopy Gap"”.
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Coordination of physiological and morphological acclimation of shade-grown tree saplings to late-season canopy gap formation
… saplings respond positively to late-season canopy gaps, then morphological and physiological changes at both the organ and whole-plant level will result in greater carbon gain of saplings exposed to gaps relative to saplings remaining in the shade; that is, shade-developed saplings will …
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Sapling growth and recruitment as affected by flooding and canopy gap formation in a river floodplain forest in southeast Texas
… data collected since 1980 to investigate how canopy disturbance interacts with chronic understory disturbance to determine regeneration patterns. I reconstructed flooding history using a combination of river gauging, a local water-level recorder, and contour maps. 1979 was an extreme flood …
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The response of Keen's mice populations to riparian restoration treatments on Lyell Island, Haida Gwaii
… debris and light transmitting though the forest canopy for promoting understory plant growth and diversity. The purpose of my study was to test the importance of coarse woody debris (CWD) and canopy light transmission to habitat quality for Keen's mouse (Peromyscus keeni keeni) in young riparian …
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Regeneration Dynamics in Old -Growth and Second-Growth Southern Appalachian Cove Forests
… the two sites, but was significantly higher in canopy gaps in the old-growth site. Results of multivariate direct gradient analyses indicated that light availability played an important and often significant role in the distribution of species in the study sites and in several measures of …
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Spatial distribution of canopy gaps in a tropical forest landscape and its influence on the tree community
… understood (Molino and Sabatier, 2001). This gap in understanding in large part reflects the lack of appropriate tools that allow measurement of disturbance patterns at fine spatial scale (Chambers et al. 2009). In old growth tropical forests, the creation of canopy gaps by one or multiple …
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Forest Net Primary Production Resistance Across a Gradient of Moderate Disturbance
… that kill or defoliate only a subset of canopy trees such as insect defoliation, drought, and age-related senescence are increasing in extent and frequency; yet, little is known about the effect of moderate disturbance on forest production and the mechanisms sustaining or supporting the …
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Light microsite requirements of seedlings of some Afromontane forest tree species: the role of canopy gaps promoting regeneration
… forest, where frequency of seedlings beneath the canopy and under a canopy gap were recorded and tested using a x²-goodness of fit test, against the null hypothesis that there are equal frequencies of seedlings beneath the canopy and canopy gaps. Results confirmed predictions made for latifolius, …
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Barrier Effects Of Roads And Traffic On Animal Occurrence, Space Use, And Movements
… mechanisms that include traffic, edge, and gap avoidance. We used an endangered forest obligate, the Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis), as our study organism to assess effects of traffic noise on animal occurrence and demonstrated that traffic noise had …
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Effects of seed dispersal by gibbons, sambar, and muntjac on Choerospondias axillaris demography, and the disruption of this mutualism by wildlife poaching
… has negatively affected the demography of the canopy tree Choerospondias axillaris, which is dependent on the dispersal of its seeds to light gaps by gibbons (Hylobates lar), sambar deer (Cervus elaphus), and muntjac deer (Muntiacus muntjak). In parks where these mammals are heavily hunted, far …
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Effects of seed dispersal by gibbons, sambar, and muntjac on Choerospondias axillaris demography, and the disruption of this mutualism by wildlife poaching
… has negatively affected the demography of the canopy tree Choerospondias axillaris, which is dependent on the dispersal of its seeds to light gaps by gibbons (Hylobates lar), sambar deer (Cervus elaphus), and muntjac deer (Muntiacus muntjak). In parks where these mammals are heavily hunted, far …
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Bridging gaps between numerical and physical modeling of aquatic vegetation: experimental bias, near-bed hydrodynamics, and sediment-induced turbulence modulation
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-08-01