He found in a series of trials that populations of the familiar weed evolve, changing physically to take advantage of this sort of resource enhancement, within the space of one growing season.
Operational policies for future scenario were framed for various combinations of resource enhancement and demand management strategies.
Thus, for cognitive disabilities, Wolff emphasizes "targeted resource enhancement" rather than status enhancement, arguing for an entitlement scheme that gives people with cognitive disabilities maximum possible control over an individual budget for personal assistance and social support (2009a, 407 413).
Resource enhancement strategy through reallocation of reservoir storage capacity encompasses increasing the conservation storage volume at the expenses of flood control storage volume for reservoirs.
"Targeted resource enhancement" offers an intermediate option, which tries to improve the fit of the individual and the environment with a range of restricted resources such as personal assistance and assistive technology.
Some of the marine resource enhancement strategies discussed here can be viewed as examples of people creating niches that served to increase availability and productivity and in some instances to make resources more reliable.
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Although the proximate mechanisms involved in stressor initiation and resource enhancement of cancer are relatively well understood, the evolutionary underpinnings remain largely unexplored.
Another key concept in sex allocation is local resource enhancement (LRE) whereby individuals of one sex provide relatives (usually parents) with greater fitness returns, for instance through alloparental behaviour (e.g. in cooperative breeders: Emlen, Emlen & Levin, 1986).
In particular, sex-biased dispersal provides the conditions for the evolution of biased sex ratios: parental manipulation of the sex ratio allows individuals to avoid kin competition [ 13, 14], to benefit from local resource enhancement [ 15], or to select habitat in a heterogeneous environment [ 16].
