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Definitions (84)
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seed zone
A geographic area, defined on the basis of ecological characteristics and genetic information, within which seeds may be collected and freely deployed without any significant loss of adaptation and gr [..]
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seed orchard
A stand of trees, usually several hundred to several thousand in number, established and managed primarily for early and abundant production of seed for deployment. Trees in the orchard are derived an [..]
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natural region
A geographic area in Alberta delineated as part of an ecological site classification and possessing a distinctive combination of physical features (climate, geology, soils, hydrology) and biological f [..]
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adaptation
A change on the part of an individual or population in respect of their environments resulting in better survival, growth or reproduction. This may occur by natural selection, as individuals with favo [..]
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adapted material
Material resulting from natural evolution, or breeding and testing, that is capable of adequate growth and reproduction in a given habitat and that will not have adverse impacts on the health, functio [..]
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afforestation
The establishment of a forest or stand of trees in an area where the preceding vegetation or land use was not forest.
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allele
An alternate form of a gene, differing in DNA sequence and affecting the functioning of a single gene product (RNA and/or protein).
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base population
The population of trees from which individuals are chosen to establish the breeding population for a tree improvement program. Generally refers to a wild population within a breeding region.
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biodiversity
The variety and variability among living organisms and the ecosystems of which they are part. Biodiversity has three levels or components – ecosystem diversity, species diversity and genetic diversity [..]
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biogeography
The study of the distribution of organisms over the earth and of the principles that govern their distribution.
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