Journal ArticleDOI
The gap dynamics of canopy trees of a tsuga canadensis forest community
W. T. Rankin,Elliot J. Tramer +1 more
TLDR
In this article, the authors examined the correlation between canopy gap formation and the initial growth of forest trees by reconstructing the gap history of a Tsuga canadensis (L.) Carr community in southeastern Ohio.Abstract:
We examined the correlation between canopy gap formation and the initial growth of forest trees by reconstructing the gap history of a Tsuga canadensis (L.) Carr. forest community in southeastern Ohio. We cored each tree (>10 cm dbh, n = 156) in a 40 × 90 m plot and examined the cores for release events, characterized by dramatic increases in radial growth. We identified 80 former gaps in the 79 yr sample period by clustering release events in time and space. Thirteen of the 80 former gaps coincided with the initial growth of trees. These 13 gaps were usually large gaps containing few established trees or gaps undergoing repeat disturbance. Of the 36 trees >10 cm dbh that began growth during the sample, 21 (58%) began growing inside a gap within 6 yr of gap formation-three times the rate predicted by chance (p = 0.001). We also measured the distance in time and space between the first year of growth and the closest canopy gap for each tree. We called the inverse of this measure the gap affinity i...read more
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Journal ArticleDOI
Loss of a foundation forest species due to an exotic invader impacts terrestrial arthropod communities.
Joshua K. Adkins,Lynne K. Rieske +1 more
TL;DR: A comparative evaluation of eastern hemlock and deciduous riparian zone arthropod communities depicts the potential end point of a likely successional trajectory of eastern North American forests invaded by hemlocks woolly adelgid.
Journal ArticleDOI
Structural characteristics and canopy dynamics of Tsuga canadensis in forests of the southern Appalachian Mountains, USA
TL;DR: Carr et al. as discussed by the authors examined the structure and canopy dynamics of four Tsuga canadensis forest stands within the Cataloochee watershed, in the far eastern part of Great Smoky Mountains National Park (GSMNP).
Journal ArticleDOI
Effect of an exotic herbivore, Adelges tsugae, on photosynthesis of a highly susceptible Tsuga host, with notes on conspecifics
TL;DR: Evaluated the effects of A. tsugae on photosynthesis and photosynthesis on Tsuga species from various geographic origins and found a significant decrease in Asat and a small but significant increase in dark respiration of T. canadensis that were infested with adelgid, suggesting that A.tsugae triggers a physiological response in eastern hemlock by decreasing metabolic activity.
Journal ArticleDOI
Gap dynamics of late successional sugar maple-yellow birch forests at their northern range limit.
TL;DR: In this article, the authors investigated whether the gap disturbance rate at the northern range limit of sugar maple (Acer saccharum Marsh.) and yellow birch (Betula alleghaniensis Britton) forests compared to broad-leaf temperate deciduous forests located more to the south.
References
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Book
Statistics and data analysis in geology
TL;DR: In this article, a thoroughly revised edition presents important methods in the quantitative analysis of geologic data, such as probability, nonparametric statistics, and Fourier analysis, as well as data analysis methods such as the semivariogram and the process of kriging.
Journal ArticleDOI
The maintenance of species-richness in plant communities: the importance of the regeneration niche
TL;DR: It is shown that when an individual dies, it may or may not be replaced by an individual of the same species, which is all‐important to the argument presented.
Journal ArticleDOI
The Ecology of Natural Disturbance and Patch Dynamics.
Book
The Ecology of Natural Disturbance and Patch Dynamics
TL;DR: In this article, the authors discuss the implications of patch dynamics for the Organization of Communities and the Functioning of Ecosystems in a patch-based setting and propose a patch dynamic setting.
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