Sentence examples for numbers of monarchs from inspiring English sources

Scientists still do not have precise estimates of the typical numbers of monarchs that die in Mexico each winter, but researchers agree it is considerably lower than the estimates of mortality from the storm in January.

"Such low numbers of monarchs … again.

But this summer researchers discovered that large numbers of monarch caterpillars live on milkweed in cornfields.

Record low numbers of monarch butterflies wintering in Mexico have researchers worried that the stunning annual migration is dwindling.

"The number of monarchs is going to be astounding this year," said Pat Sutton, program director at the New Jersey Audubon Society Cape May Bird Observatory.

That study estimated that in Iowa, farms produced 78 times the number of monarchs as nonagricultural sites, and in Wisconsin and Minnesota, 73 times as much.

Correction: August 15 , 2001 Wednesday An obituary on Monday about Eric Bedford, a former chief architect of Britain, misstated the number of monarchs served by Sir Christopher Wren, who held an equivalent post -- king's surveyor of general works.

Since the report of the deaths, researchers have continued to trade barbs over many issues, including the extent of the storm's damage to the butterflies, the number of monarchs living in these areas and the extent of blame that can be laid upon the vast deforestation for the deaths.

But this year the number of monarchs that took up their habitual winter quarters at a forest in Mexico fell to a two-decade low, to the chagrin of Mexican wildlife authorities and tourism officials who count on the butterflies as a big draw.

But in recent years, the number of monarchs migrating has fallen sharply.

Last year, the number of monarchs that migrated to Mexico was the lowest ever recorded, covering a mere 0.67 hectares of forest, down from a high of 21 hectares in the 1996 to 1997 season.