相关实验视频
Updated: Aug 7, 2026

Resurrection of Dormant Daphnia magna: Protocol and Applications
Published on: January 19, 2018
哺乳动物对四分期后期环境波动的空间反应
1R. W. Graham, M. A. Graham, E. K. Schroeder, and R. S. Toomey III are at Research and Collections Center, Illinois State Museum, 1011 East Ash, Springfield, IL 62703, USA. E. L. Lundelius Jr., Department of Geological Sciences, University of Texas, Austin, TX 78712, USA. E. Anderson, Denver Museum of Natural History, Denver, CO 80205, USA. A. D. Barnosky, Mountain Research Center, Montana State University, Bozeman, MT 59715, USA. J. A. Burns, Provincial Museum of Alberta, Edmonton, Alberta, Canada T5N 0M6. C. S. Churcher, Department of Zoology, University of Toronto, Toronto, Ontario, Canada M5S 1A1. D. K. Grayson, Department of Anthropology, University of Washington, Seattle, WA 98195, USA. R. D. Guthrie, Department of Biology, University of Alaska, Fairbanks, AK 99701, USA. C. R. Harington, Earth Sciences Section (Paleobiology), Canadian Museum of Nature, Ottawa, Ontario, Canada K1P 6P4. G. T. Jefferson, Anza-Borrego Desert State Park, 200 Palm Canyon Drive, Borrego Springs, CA 92004, USA. L. D. Martin, Museum of Natural History, University of Kansas, Lawrence, KS 66045, USA. H. G. McDonald, Hagerman Fossil Beds National Monument, Post Office Box 570, Hagerman, ID 83332, USA. R. E. Morlan, Canadian Museum of Civilization, Post Office Box 3100 Station B, Hull, Quebec, Canada J8X 4H2. H. A. Semken Jr., Department of Geology, University of Iowa, Iowa City, IA 52242, USA. S. D. Webb, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611, USA. L. Werdelin, Department of Paleozoology, Swedish Museum, Box 50007, S-104 05 Stockholm, Sweden. M. C. Wilson, Department of Archaeology, Simon Fraser University, Burnaby, BC, Canada V5A 1S6.
化石哺乳动物范围的变化揭示了对四季气候变化的反应. 现代动物群体,与古代群体不同,最近出现,在普莱斯托纪晚期显示出显著的动物异质性.
科学领域:
- 古生物学的古生物学
- 四年纪地质学四年纪地质学
- 生物地理学是生物地理学.
背景情况:
- 晚四年纪的环境波动对物种分布产生了重大影响.
- 了解过去的动物动态对于预测未来的生态变化至关重要.
研究的目的:
- 分析美国各地化石哺乳动物动物范围的变化,以应对环境变化.
- 为了比较普莱斯托时代晚期和Holocene晚期之间的动物省组成和社区结构.
主要方法:
- 来自美国2945个地区的化石哺乳动物动物群的分析.
- 随着时间的推移,地理范围的变化,动物省份的模式和物种组成的比较.
主要成果:
- 个别物种在应对环境波动时表现出各种范围的变化.
- 野生动物省份显示出类似的地理模式,但在普世晚期和Holocene晚期之间不相似的物种组成.
- 现代社区模式是最近的,在过去几千年内出现.
- 晚期普莱斯托时代的社区往往缺乏现代类型,具有更大的动物异质性.
结论:
- 物种的地理范围动态地响应了四次纪晚期的环境变化.
- 虽然野生动物省的结构得到保护,但由于不同的环境梯度,物种组成有所不同.
- 现代生态社区的出现是一个相对较新的现象,突出显著的生态重组.
相关概念视频
Migration
Conservation of Declining Populations
Habitat Fragmentation
What is Evolutionary History?
The Fossil Record

