نتایج جستجو برای: natural succession
تعداد نتایج: 491902 فیلتر نتایج به سال:
Despite several decades of research, the field of invasion ecology has not been very successful in developing reliable generalizations regarding the mechanisms and predictability of invasions. In this essay, we argue that one impediment in the field’s development has been that the field of invasion ecology has largely dissociated itself from other subdisciplines of ecology, particularly success...
Low density plantings complemented by natural regeneration is an increasingly common reforestation technique to ensure growth of a sufficient number of trees from desired species while maintaining natural processes such as succession. One such form of low density planting that aims at lowering establishment costs—oak clusters—has been developed as an alternative to row planting since the 1980s ...
In this paper, we propose a novel unit concatenation and synthesis method using ABS/OLA sinusoidal model. Phase succession is used in the unit synthesis assuming that the pitch onset time of the rst frame in a given unit is the frame center. In the unit concatenation, the phase succession and interpolation of the sinusoid amplitudes via several frames around the concatenation point is utilized....
The habitats of plants change through time, and the plants change with them. Plants, in fact, are able themselves to change various aspects of the environment they inhabit. Succession occurs because altered environmental conditions favour certain species, which therefore can compete more successfully than before for nutrients, light, space and many other factors. As a result, populations of wel...
Seed quality and production are major factors governing the regeneration, structure, succession of trees in natural forests [...]
Secondary succession plays a critical role in driving community structure in natural communities, yet how succession dynamics vary with environmental context is generally unknown. We examined the importance of seedling and vegetative recruitment in the secondary succession of coastal marsh vegetation across a landscape-scale environmental stress gradient. Replicate bare patches were initiated i...
The Deepwater Horizon (DWH) accident released an estimated 4.1 million barrels of oil and 1010 mol of natural gas into the Gulf of Mexico, forming deep-sea plumes of dispersed oil droplets and dissolved gases that were largely degraded by bacteria. During the course of this 3-mo disaster a series of different bacterial taxa were enriched in succession within deep plumes, but the metabolic capab...
In the GRAAD project we aim at developping a knowledgebased system which manipulates spatial and temporal knowledge while simulating the kind of behaviour that people adopt when describing a route. A route description is essentially a narrative text in which sentences are prescriptions given by the speaker to an addressee: they describe a succession of actions that the addressee will have to ca...
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