Forest stability during the Holocene in Santa Catarina, southern Brazil revealed by small mammals from Gruta do Presépio
The Holocene(2023)
摘要
Quaternary small mammals are important proxies for paleoenvironmental reconstructions. The Brazilian record, although famous and continuously growing, is hampered by poor chronological control due to the nature of most of the published assemblages. Here, we present a taphonomic analysis and paleoenvironmental reconstruction based on marsupials, bats, and rodents (480 remains) from the Gruta do Presépio archeological site (GPR, hereafter), Santa Catarina State, southern Brazil. The site is a rock shelter located in an Atlantic Forest biome, an important biodiversity hotspot. The GPR sedimentary sequence spans the Early Holocene (8330 ± 30 years 14 C BP) to recent Historical time (after the arrival of Europeans). Most of the small mammal remains were deposited by strigiforms, although for the oldest units some strongly digested remains could indicate the activity of diurnal birds or carnivorous mammals. The GPR small mammal assemblages include 28 taxa (five marsupials, nine chiropterans, and 14 rodents). Most of them indicate the occurrence and persistence of forested environments during the Holocene around the site, which is in overall agreement with regional palynological data. A major community change, implying the increment of rodents allied to disturbed ecosystems (e.g. Akodon, Oligoryzomys, Mus), is very recent and reflects human forest clearance as a signature of the Anthropocene.
更多查看译文
关键词
southern brazil,santa catarina,small mammals,forest,holocene
AI 理解论文
溯源树
样例
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要