Islands play a key role globally in the conservation of endemic species. Many island reserves have been highly modified since human colonization, and their restoration and management usually occur without knowledge of their prehuman state. However, conservation paleoecology is increasingly being recognized as a tool that can help to inform both restoration and conservation of island reserves by providing prehuman vegetation baselines. Many of New Zealand's mammal-free offshore islands are foci for biological diversity conservation and, like many islands in the Polynesian region, were deforested following initial human settlement. Therefore, their current restoration, replanting, and management are guided either by historic vegetation descriptions or the occurrence of species on forested islands. We analyzed pollen and ancient DNA in soil cores from an offshore island in northern New Zealand. The result was a 2000-year record of vegetation change that began >1200 years before human settlement and spanned 550 years of human occupation and 180 years of forest succession since human occupation ceased. Between prehuman and contemporary forests there was nearly a complete species turnover including the extirpation of a dominant conifer and a palm tree. The podocarp-dominated forests were replaced by a native but novel angiosperm-dominated forest. There is no modern analog of the prehuman forests on any northern New Zealand island, and those islands that are forested are dominated by angiosperms which are assumed to be climax forests. The pollen and DNA evidence for conifer- and palm-rich forests in the prehuman era challenge this climax forest assumption. Prehuman vegetation records can thus help to inform future restoration of degraded offshore islands by informing the likely rate and direction of successional change; helping to determine whether natural rates of succession are preferable to more costly replanting programs; and providing past species lists if restoration replanting is desired.

Recent observations of fishing, the ethnohistoric literature, the archaeological fishing tool kit, marine environments adjacent to the site, and the fish bone assemblage were considered to understand fishing strategies on the makatea island of Rurutu, Austral Islands, French Polynesia. Excavations totalling 53.5 m2 at the Peva dune site (ON1) were conducted in 2003. The sandy, calcareous deposits from Area 2 (33 m2) were dry sieved through 3.2 mm mesh and 5,011 fish bones weighing 2,229.7 g were retained for analysis. Two distinct cultural layers were identified. Archaic period layer D had 20 fish families inventoried from a total of 141 minimum numbers of individuals (MNI) and 1,081 numbers of identified specimens (NISP). Average bone weight was 0.42 g and median vertebra width between 5–6 mm (n=747). The Classic period layer A, associated with a marae complex, contained only seven fish families, a MNI of 24 and NISP of 403. Average bone weight was 0.63 g and median vertebra width between 10–11 mm (n=107). While a broad spectrum fish capture strategy is inferred for the Archaic, selective larger fish, including an order of magnitude increase in shark, were likely prestige items used in ritual offerings during the Classic period. Comparisons of the archaeological assemblages from five makatea islands show that in all but one case, sites are dominated by groupers, unlike many other Pacific island sites where parrotfish are most frequent. This, alone, might be the unique signature of makatea assemblages.

Five bones, representing one adult of the Pacific Flying Fox, Pteropus tonganus, were recovered from an archaeological site on Rurutu (151 21 0 W, 22 27 0 S), Austral Islands, French Polynesia, making this the most eastern extension of the species. For the first time, flying fox bones from cultural deposits were directly dated by accelerator mass spectrometry, yielding an age of death between A.D. 1064 and 1155. Their stratigraphic position in an Archaic period archaeological site and the absence of bones in the late prehistoric to historic layers point to extirpation of the species. No flying fox bones were found in prehuman deposits and human transport of the species cannot be ruled out.