2025-06-09 マサチューセッツ大学アマースト校
Credit: Zachary S. Klukkert (Oklahoma State University).
<関連情報>
- https://www.umass.edu/news/article/review-led-umass-amherst-paleontologist-laurie-godfrey-explores-causes-large
- https://www.cambridge.org/core/journals/cambridge-prisms-extinction/article/patterns-of-late-holocene-and-historical-extinctions-on-madagascar/1ECC0DA3436B4E3F51584058694F2F8B
マダガスカルにおける完新世後期および歴史的絶滅のパターン Patterns of late Holocene and historical extinctions on Madagascar
Laurie R. Godfrey,Zachary S. Klukkert,Brooke E. Crowley,Robin R. Dawson,Peterson Faina,Benjamin Z. Freed,Evon Hekkala,Cortni Borgerson,Harimanjaka A. M. Rasolonjatovo and Patricia C. Wright,…
Cambridge Prisms: Extinction Published:05 June 2025
DOI:https://doi.org/10.1017/ext.2024.19
Abstract
Around 1000 years ago, Madagascar experienced the collapse of populations of large vertebrates that ultimately resulted in many species going extinct. The factors that led to this collapse appear to have differed regionally, but in some ways, key processes were similar across the island. This review evaluates four hypotheses that have been proposed to explain the loss of large vertebrates on Madagascar: Overkill, aridification, synergy, and subsistence shift. We explore regional differences in the paths to extinction and the significance of a prolonged extinction window across the island. The data suggest that people who arrived early and depended on hunting, fishing, and foraging had little effect on Madagascar’s large endemic vertebrates. Megafaunal decline was triggered initially by aridification in the driest bioclimatic zone, and by the arrival of farmers and herders in the wetter bioclimatic zones. Ultimately, it was the expansion of agropastoralism across both wet and dry regions that drove large endemic vertebrates to extinction everywhere.
