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GRAZING EFFECT [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2015-09-30

English

Subject field(s)
  • Zoology
  • Ecology (General)
CONT

[An] example of the effect of apex predators on an ecosystem is the dramatic changes in the Greater Yellowstone Ecosystem recorded after the gray wolf was reintroduced to Yellowstone National Park in 1995. Elk, the wolves’ primary prey, became less abundant and changed their behavior, freeing riparian zones from constant grazing and allowing willows, aspens and cottonwoods to flourish, creating habitats for beaver, moose and scores of other species.

French

Domaine(s)
  • Zoologie
  • Écologie (Généralités)
CONT

Un superprédateur [...] est un prédateur qui, une fois à l'âge adulte, se trouve au sommet de la chaîne alimentaire et n'est alors la proie d'aucune autre espèce animale [...] Les superprédateurs existent chez les poissons, les oiseaux et les mammifères (terrestres ou marins).

Key term(s)
  • super-prédateur

Spanish

Save record 1

Record 2 2004-03-01

English

Subject field(s)
  • Acoustics (Physics)
  • Cinematography
DEF

The way sound is absorbed in a theatre by an audience.

CONT

The audience themselves absorb much of the strength of the sound as it passes over their heads. This phenomenon is called the grazing effect.

OBS

The Dictionary of New Media is available at: <a href="http://hepdigital.com/" title="http://hepdigital.com">http://hepdigital.com</a>.

French

Domaine(s)
  • Acoustique (Physique)
  • Cinématographie
DEF

Effet acoustique engendré par la présence du public dans une salle.

Spanish

Save record 2

Record 3 1985-12-12

English

Subject field(s)
  • Air Pollution
CONT

... will the anti-acid capacity of the soil be sufficient to counteract the acid stress directly on the leaves, stems and seed pods of crops? For how long? And what of the thousands of square miles of agricultural land which is not fertilized, or the even larger areas of untended grazing land? What effect has acid rain had, what effect will it reveal, and how soon? At present, there simply isn’t enough scientific information to answer these questions.

French

Domaine(s)
  • Pollution de l'air
DEF

Contrainte faible mais soutenue qu'un polluant acide exerce sur un écosystème et qui provoque à long terme un déséquilibre acido-basique de cet écosystème.

CONT

La libération des métaux lourds (l'aluminium, le fer, le cuivre (...] dans les cours d'eau subissant un stress acide est un phénomène connu. Pour les poissons, au printemps, la concentration de ces métaux atteint et dépasse parfois le seuil toxique tolérable.

OBS

Le terme "pression acide" est trop lénitif pour rendre avec bonheur la notion.

OBS

Pour de plus amples renseignements sur cette notion, consulter le cahier de néologie sur les pluies acides (OLFNE 1985 no 40-41).

Spanish

Save record 3

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