The dramatic migration pattern can be chalked up to the rapid development of an oil- and gas-rich shale formation in the western part of the state.

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We are no more an implanted population than are the various populations of South America whose ancestors arrived as immigrants from Europe -- we arrived here as part of the same process and pattern of migration.

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The recession may have slowed the pace of net migration, but the essential pattern has remained in place.

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The pattern is among the revelations in a map of religious migration across the globe, released on Thursday by the Pew Research Center, which also shows that Europe has more Christian immigrants than Muslim immigrants.

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