globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2015.10.039
论文题名:
Niche overlap and competition potential among tigers (Panthera tigris), sabertoothed cats (Homotherium ultimum, Hemimachairodus zwierzyckii) and Merriam's Dog (Megacyon merriami) in the Pleistocene of Java
作者: Volmer R.; Hertler C.; van der Geer A.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 441
起始页码: 901
结束页码: 911
语种: 英语
英文关键词: Body mass ; Carnivores ; Ecological character displacement ; Prey mass spectrum ; Sangiran ; Southeast Asia
英文摘要: On Java during the Pleistocene, tigers of more than 300 kg occurred, but these are restricted to a single Late Pleistocene faunal unit, while Early and Middle Pleistocene tigers possessed body masses comparable to those of historic Javanese and extant Sumatran tigers. However, former studies have excluded carnivores from the Middle Pleistocene site of Sangiran where tigers co-occurred with machairodonts ( Hemimachairodus zwierzyckii and Homotherium ultimum) and the large Merriam's Dog ( Megacyon merriami). The aim of this study is to test if large tiger individuals occurred already in Early and/or Middle Pleistocene sites in Java and evaluate competition potential among carnivores from Sangiran and its consequences.We calculated body masses and prey mass spectrum for tigers and potential competitors using linear regressions. Niche overlap was then estimated based on the prey mass spectrum after which niche-overlaps were used as indicators for competition potentials. Reconstructed body mass for H. ultimum, H. zwierzyckii, M. merriami are 154 kg (comparable to Homotherium from Untermassfeld), 130 kg and 52 kg, respectively. The niche overlap between tigers and Merriam's Dog is highest (100%) while it is comparatively low (60%) between tigers and H. ultimum. Tigers have not increased body mass before Ngandong faunal level, but competitors like Merriam's Dog seem to have decreased body mass to avoid competition with tigers. The sabertoothed cats on the other hand seem to have been unable to adapt to competition and went extinct. © 2015 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68649
Appears in Collections:过去全球变化的重建

Files in This Item:

There are no files associated with this item.


作者单位: University of the Philippines, Diliman, Albert Hall Building, Lakandula Street, Quezon City, Philippines; The Role of Culture in Early Expansions of Humans, Research Institute Senckenberg, Senckenberganlage 25, Frankfurt, Germany; Heidelberg Academy of Science, Karlstraße 4, Heidelberg, Germany; Naturalis Biodiversity Center, Department of Geology, PO Box 9517, Leiden, Netherlands; National and Kapodistrian University of Athens, Zografou, Greece

Recommended Citation:
Volmer R.,Hertler C.,van der Geer A.. Niche overlap and competition potential among tigers (Panthera tigris), sabertoothed cats (Homotherium ultimum, Hemimachairodus zwierzyckii) and Merriam's Dog (Megacyon merriami) in the Pleistocene of Java[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,441
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Volmer R.]'s Articles
[Hertler C.]'s Articles
[van der Geer A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Volmer R.]'s Articles
[Hertler C.]'s Articles
[van der Geer A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Volmer R.]‘s Articles
[Hertler C.]‘s Articles
[van der Geer A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.