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POPULATION CRASH [2 records]

Record 1 2016-05-11

English

Subject field(s)
  • Mollusks, Echinoderms and Prochordates
Universal entry(ies)
CONT

In February 1983 a wave of death swept through the Caribbean, virtually obliterating the populations of Diadema antillarum-a spiny sea urchin-that thrived there. The cause of this massive 95 to 99% population crash is still a mystery, although some form of bacterial infection is strongly suspected.

French

Domaine(s)
  • Mollusques, échinodermes et procordés
Entrée(s) universelle(s)

Spanish

Save record 1

Record 2 1997-07-10

English

Subject field(s)
  • Animal Behaviour
  • Evolution (Biology)
  • Commercial Fishing
DEF

A sudden, rapid decline in the size of a population.

CONT

The fixed policy, heavily subsidized by government, led to the predictable crash of the Grand Banks fishery and to the economies of dozens of local towns and villages along the coast of Newfoundland.

French

Domaine(s)
  • Comportement animal
  • Évolution (Biologie)
  • Pêche commerciale
CONT

En d'autres occasions, des facteurs intrinsèques semblent régir l'accroissement « démographique », et lorsque se produit l'effondrement numérique, on s'aperçoit que la mortalité est très forte chez les jeunes.

Spanish

Save record 2

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