Its membership, resources and activities achieved a peak in the period of 1946 to 1947, subsequently undergoing a sharp decline, coincident with the decline in public interest over atomic energy problems.
"Some experts see this herd as a treasure of the natural world in case Africa's hippo population suffers a sharp decline," Mr. Palacio continued.
The highest inbreeding coefficient (FIS) values measured using neutral loci were found in E405, the most isolated and fragmented population, and in N101 postmange, the population that suffered a sharp decline as a result of the disease outbreak (Table 2).
What was once a niche issue — a sharp decline in shark populations because of soaring demand for their fins in parts of Asia — has gone mainstream.
However, the skyline plot for African buffalo implies a contrasting gradual population expansion, followed by a sharp decline.
If many monkeys from a single population interbreed, it could cause a sharp decline in the population.
The surviving population in Scotland then suffered a sharp decline in breeding success in the 1960s due to organochlorine pesticides which caused mass infertility.
But he concedes that paying for the benefits and illnesses of an aging population will be difficult, and that some countries, like Russia, will see a sharp decline in its population as a strategic threat to its influence and power.
After a sharp decline in population in the 1980's, he has brought in roads and telephones, and jobs through his own lumber mill and cafe.
The farm financial crisis of the 1980s precipitated rapid consolidation of farms and a sharp decline in rural populations.
The international trade in elephant ivory has been outlawed since 1990 after a sharp decline in elephant populations.
