Glossary of terms related to the CBD


- the place or type of site where an organism or population naturally occurs. [CBD]
- the space in which an organism, population, or species lives.
habitat restoration
the return of a habitat to its original community structure, natural complement of species and natural functions.
- cell or organism that contains one set of chromosomes.
- having the number of chromosomes present in the normal germ cell equal to half the number in the normal somatic cell. [CUB]
plants or plant parts valued for medicinal, savoury, cosmetic, flavouring, or aromatic qualities. [CUB]
genetic variability among individuals within populations and variability among populations.
homologous chromosomes
contain identical linear sequences of genes and pair during meiosis. [CUB]
homozygote or homozygous
- individual having two copies of the same allele at a genetic locus.
- individual having two identical alleles of a particular gene or genes, and so breeding true for the corresponding characteristics. [CUB]
the cultivation of ornamental and vegetable plants in gardens or smallholdings (market gardens). Latin: hortus = garden. [CUB]
- an area particularly rich in total numbers of species.
- an area of especially high pollutant concentration.
individual organism resulting from a cross between parents of differing genotypes. Hybrids may be fertile or sterile, depending on qualitative and/or quantitative differences in the genomes of the two parents. Hybrids are most commonly formed by sexual cross-fertilization between compatible organisms, but techniques for the production of hybrids from widely differing organisms are being developed by cell fusion and tissue culture. [CUB slightly modified by JVG]
hybrid zone
region of reproduction among individuals of different species.
- crossing of individuals from genetically different strains, populations or species.
- the act of crossing two different individual organisms of differing genetic constitution from different populations or different species. [CUB]
- a molecular procedure in which single strands of DNA and/or RNA are mixed and subsequently bind to one another. The degree of binding is a measure of the relatedness of the strands. The procedure is used to detect RNA or DNA using suitable probes. [CUB]
a state of low oxygen concentration in water and sediments, relative to the needs of most aerobic species.

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