Janine Ochoa

ORCID: 0000-0002-4498-2144
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About
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Research Areas
  • Pacific and Southeast Asian Studies
  • Marine animal studies overview
  • Evolution and Paleontology Studies
  • Pleistocene-Era Hominins and Archaeology
  • Geology and Paleoclimatology Research
  • Animal Ecology and Behavior Studies
  • Primate Behavior and Ecology
  • Forensic Anthropology and Bioarchaeology Studies
  • Maritime and Coastal Archaeology
  • Bat Biology and Ecology Studies
  • Human-Animal Interaction Studies
  • Paleontology and Evolutionary Biology
  • Wildlife Ecology and Conservation

University of the Philippines Diliman
2008-2023

University of the Philippines System
2022

Islands have long been recognized as distinctive evolutionary arenas leading to morphologically divergent species, such dwarfs and giants. We assessed how body size evolution in island mammals may exacerbated their vulnerability, well human arrival has contributed past ongoing extinctions, by integrating data on 1231 extant 350 extinct species from islands paleo worldwide spanning the 23 million years. found that likelihood of extinction endangerment are highest most extreme Extinction risk...

10.1126/science.add8606 article EN Science 2023-03-10

Abstract The 18 extant members of the Tribe Phloeomyini, “cloud rats,” constitute an endemic Philippine radiation arboreal herbivores that range in size from ca. g to 2.7 kg, most occurring cloud forest above 1,200 m elevation. Although calibrated phylogenies indicate Phloeomyini is estimated have begun diversifying within Philippines by 10–11 million years ago, no extinct fossil species been described, severely limiting our understanding this distinctive radiation. Our studies and subfossil...

10.1093/jmammal/gyab023 article EN Journal of Mammalogy 2021-02-11

Excavations at a cave site on the island of Palawan in Philippines show occupation from c. 11000 BP. A fine assemblage tools and faunal remains shows reliance hunter-foragers switching deer to pig. In 9500-9000 BP, human cremation burial container was emplaced, earliest yet known region.

10.1017/s0003598x00096836 article EN Antiquity 2008-06-01

Palaeogeographic reconstructions of Palawan Island using Geographic Information Systems based on present-day bathymetry show extensive changes in land area with respect to sea-level fluctuations during the Late Quaternary. Our analysis shows that a lowering at least 135 meters from levels is needed order expose narrow connection between and Sundaland. This most likely last occurred OIS 12 (ca. 440 Ka) probably 16 630 Ka), facilitating overland colonization two islands. The further illustrate...

10.1080/15564894.2014.880758 article EN The Journal of Island and Coastal Archaeology 2014-12-16

Throughout the Late Pleistocene and Early Holocene, humans adapted to significant climate environmental change. One key region for investigating these adaptive strategies is Island Southeast Asia, where fluctuating sea levels led dramatic changes in coastlines, vegetation fauna. The authors present new data from re-excavation of Pilanduk Cave on Palawan Island, Philippines. results corroborate earlier excavations that identified occupation site. shows evidence specialised deer hunting...

10.15184/aqy.2022.88 article EN Antiquity 2022-08-01

Since the founding work of Efremov in 1940 [...]

10.3390/quat6010008 article EN cc-by Quaternary 2023-01-10
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