Size and age at maturity increase with latitude; at the northern edge of their range, males reach sexual maturity at 7 9 years of age and females at 11 16.
The human presence typically moves like a wave front across a species' range, he said, from one edge of the range, across the middle, toward the far edge, destroying or disturbing habitat as it goes, overwhelming the underlying natural ecology.
Among Britain's generalists, there are, in addition to the comma, ten species that are widespread in the southern part of the country and reach the edge of their range somewhere in the nation's midsection.
Six vascular plants are unique in that they are at the extreme edge of their range or are disjunct from the main range of their species.
On at least this front, the Qaddafi forces were now outside of mortar range of the city, they said, and approaching the edge of the range of many of their heavier weapons.
It has been expanding its range northwards into Scandinavia since 1970 and close to the southern edge of the range of P. c. abietinus.
We are at the northern edge of its range.
Ulaanbaatar lies at the southwestern edge of the range.
The marines will stand guard around the edge of the range, help dispose of unexploded bombs and provide medical help.
On Cape Cod, near the northern edge of their range, the crabs resemble stepping stones, scattered all over the shore.
