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Fiche 1,  Justifications,  Anglais

Record number: 1, Textual support number: 1 CONT

A taxon can be considered to be severely fragmented if most(>50%) of its total area of occupancy is in habitat patches that are(1) smaller than would be required to support a viable population, and(2) separated from other habitat patches by a large distance. Fragmentation must be assessed at a scale that is appropriate to biological isolation in the taxon under consideration...  1, fiche 1, Anglais, - severely%20fragmented

Fiche 1,  Justifications,  Français

Record number: 1, Textual support number: 1 CONT

Un taxon peut être considéré comme étant gravement fragmenté si la majorité, soit plus de 50 %, de son aire d'occupation totale se situe dans des parcelles d'habitat qui sont (1) plus petites que la superficie nécessaire au maintien d'une population viable et (2) séparées d'autres parcelles d'habitat par de vastes distances. La fragmentation doit être évaluée à une échelle appropriée à l'isolement biologique dans le taxon à l'étude [...]  1, fiche 1, Français, - gravement%20fragment%C3%A9

Fiche 1,  Justifications,  Espagnol

Fiche 2,  Justifications,  Anglais

Record number: 2, Textual support number: 1 CONT

Cladogenesis defines those cases of evolution in which one species develops into two or more through adaptation. The classic example is the different species unique to the Galapagos Islands, where small populations of creatures from South America evolved in response to their new ecosystem.... There is disagreement about what constitutes a new species, but it's generally agreed that if the mating of individuals from different populations cannot result in fertile and viable offspring, then they belong to different species. Cladogenesis explains the development of a large assortment of species from a smaller set of ancestral species through evolution. Unlike anagenesis, speciation through cladogenesis does not require the extinction of the ancestral population. Through successive cladogenetic splits, either with or without the extinction of the ancestral population, the total number of species increases over time. Cladogenesis is probably a more common form of evolution and speciation than anagenesis.  2, fiche 2, Anglais, - cladogenesis

Fiche 2,  Justifications,  Français

Record number: 2, Textual support number: 1 DEF

Événement de séparation de deux clades, c'est-à-dire de deux groupes de taxons qui partagent le même ancêtre.  2, fiche 2, Français, - cladogen%C3%A8se

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[Les taxons constituent des] unités formelles représentées par un groupe d'organismes à chaque niveau de la classification.  2, fiche 2, Français, - cladogen%C3%A8se

Fiche 2,  Justifications,  Espagnol

Fiche 3,  Justifications,  Anglais

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A condition where the structure and function of an ecosystem are unimpaired by human-induced stresses.  2, fiche 3, Anglais, - ecological%20integrity

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Ecological integrity is defined as a state of ecosystem development that is optimized for its geographic location. For parks and protected areas, this optimal state has been referred to by such terms as natural, naturally evolving, pristine and untouched. It implies that ecosystem structures and functions are unimpaired by human-caused stresses, that native species are present at viable population levels and, within successional limits, that the system is likely to persist. Ecosystems with integrity do not exhibit the trends associated with stressed ecosystems. Parks and protected areas are part of larger ecosystems and determinations of integrity in national parks must consider these larger ecosystems.  3, fiche 3, Anglais, - ecological%20integrity

Record number: 3, Textual support number: 2 OBS

Term used by Parks Canada.  4, fiche 3, Anglais, - ecological%20integrity

Fiche 3,  Justifications,  Français

Record number: 3, Textual support number: 1 DEF

État d'un écosystème dont la structure et le fonctionnement n'ont pas été altérés par des stress d'origine anthropique.  2, fiche 3, Français, - int%C3%A9grit%C3%A9%20%C3%A9cologique

Record number: 3, Textual support number: 1 OBS

Terme en usage à Parcs Canada.  3, fiche 3, Français, - int%C3%A9grit%C3%A9%20%C3%A9cologique

Fiche 3,  Justifications,  Espagnol

Record number: 3, Textual support number: 1 DEF

Mantenimiento de la diversidad y calidad de los ecosistemas asi como el incremento de su capacidad para adaptarse al cambio y proveer las necesidades de las futuras generaciones.  2, fiche 3, Espagnol, - integridad%20ecol%C3%B3gica

Fiche 4,  Justifications,  Anglais

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A technique employed in physical planning in determining the desirable size of public services. The analysis rests on the idea that there are inobvisibilities in the provision of public service such that there exists a given minimum and maximum population for which the provision of some public or command service is viable.  1, fiche 4, Anglais, - threshold%20analysis

Fiche 4,  Justifications,  Français

Fiche 4,  Justifications,  Espagnol