01241nas a2200157   4500008004100000245011300041210006900154300001200223490000700235520066100242653002500903100001800928700001900946700002100965856009700986       1991                        eng d00aA Radiocarbon Chronology for Human-induced Environmental Change on Mangaia, Southern Cook Islands, Polynesia0 aRadiocarbon Chronology for Humaninduced Environmental Change on   a317-3280 v333 a<p>A suite of 23 14C age determinations, from a well-stratified rockshelter and from 3 pollen cores on Mangaia Island is reported. The rockshelter has yielded significant evidence for avifaunal extinctions during the period cal. A.D. 1000-1600. The Lake Tiriara pollen cores span a period from ca. 6500 cal. B.P. to the present, and palynological analysis of the TIR 1 core indicates major anthropogenic disturbance on the island's vegetation after ca. 1600 cal. B.P. These sites, and the radiocarbon ages associated with them, provide the first chronologically secure evidence for human impacts on the island ecosystems of the southern Cook Islands.</p>
10aanthropology biology1 aKirch, P., V.1 aFinley, J., R.1 aSteadman, D., W.  uhttps://journals.uair.arizona.edu/index.php/radiocarbon/article/download/18065/17794#page=47