[Plenary Talk 1] Extinct giant cloud rats and tigers in the Philippines скачать в хорошем качестве

[Plenary Talk 1] Extinct giant cloud rats and tigers in the Philippines

Extinct giant cloud rats and tigers in the Philippines: new perspectives from the fossil record Janine P. Ochoa, PhD, University of the Philippines, Diliman, Quezon City, Philippines Lawrence R. Heaney, PhD, The Field Museum, Chicago USA Fossil discoveries of previously unknown and extinct mammals have emerged from recent archaeological and paleozoological research in the Philippines. On Luzon Island, we have discovered three new species of cloud rats (Phloeomyini) from the Callao Cave Complex in Peñablanca, Cagayan province. The three species are now extinct. The oldest evidence of these fossil cloud rats was found in a stratified layer that also contained remains of Homo luzonensis, dating from at least 67,000 years ago. Two of these cloud rats—giant Carpomys and Crateromys—are known to have persisted successfully from the Late Pleistocene into the Late Holocene. This period included major climatic changes from the previous interglacial period (hot and wet) through the last glacial period (cool and dry) to the current interglacial (hot and wet), only to disappear when major new human cultural influences arrived recently. On Palawan Island, we provide new fossil records of the tiger (Panthera tigris) discovered in Pilanduk Cave, dating to the Last Glacial Maximum at ca. 20,000–22,000 cal BP (calibrated years Before Present). Combined with previous records from the Terminal Pleistocene at ca. 14,000 BP, our data show that tigers persisted for thousands of years during a time when the climate was cooler and drier and two species of deer were present on Palawan; they then disappeared when the climate changed to the current interglacial. The paleoenvironmental and archaeological evidence from Luzon and Palawan demonstrate contrasting trajectories and different likely causes of Holocene mammal extinctions in the archipelago. #BCSPat29 #BiodiversityPH SECTIONS 00:00 Introduction 00:58 About Dr. Janine Ochoa 01:36 About Dr. Lawrence Heaney 02:55 Presentation 45:32 Open Forum