Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.26879/1169 |
A vanished ecosystem: Sophora microphylla (Kowhai) dominated forest recorded in mid-late Holocene rock shelters in Central Otago, New Zealand | |
Pole, Mike | |
通讯作者 | Pole, M (corresponding author),Queensland Herbarium, Brisbane Bot Gardens Mt Coot Tha, Mt Coot Tha Rd, Toowong, Australia. |
来源期刊 | PALAEONTOLOGIA ELECTRONICA |
ISSN | 1935-3952 |
EISSN | 1094-8074 |
出版年 | 2022 |
卷号 | 25期号:1 |
英文摘要 | When European settlers first arrived in Central Otago, New Zealand, in the 1850s, they found much of the region to be semi-arid, rocky, and treeless - at least partly due to fires after the arrival of Polynesians in the late thirteenth century or early fourteenth century. The condition of the vegetation rapidly deteriorated with the European intro-duction of grazing mammals (including sheep and rabbits), leading to a situation now, where it is difficult to understand what the 'original' vegetation was. However, rock overhangs (termed 'shelters' in this paper) accumulated dried vegetation in the pre-human mid-late Holocene. Much of this material appears to have been transported into the shelters as roosting material by the extinct giant moa birds. This record of dried vegetation, and sometimes the coprolites scattered through it, is therefore an important source of information about the pre-human vegetation, as well as the diet of the moa. The present study analyses samples of mid-late Holocene dried leaf material from 115 rock shelters, identifying the taxa on the basis of epidermal details of the leaf cuti-cle. Based on it being the only large tree in the area now, and the nearly ubiquitous presence of its leaves in the shelters, the most important plant in the area is consid-ered to have been Sophora microphylla. Based on the size of old, relict, 'champion', trees in the area now, it likely formed a forest with a continuous, but low (perhaps 14 m) and open canopy over the study area. Other trees which were present and are entirely absent (or almost so) from the area now include Pittosporum tenuifolium and Pseu-dopanax ferox. They suggest more closed canopy forest, perhaps in more localized areas, but were subordinate to Sophora. However, other common plants included Car-michaelia, Rubus, and Hebe lycopodioides that are more suggestive of lower, open vegetation. There is no indication of a conifer component or of 'wetter' forest trees such as Nothofagus and Griselinia. Cuticle within the largest associated coprolites indicate that moa (Aves, Dinorni-thiformes) was ingesting a similar range of plants as the shelter material. Of particular interest is that moa clearly ate Sophora microphylla, the first evidence for this. Together these data suggest a Central Otago ecosystem where a low Sophora microphylla for-est and was utilized and maintained moa. |
英文关键词 | cuticle moa Holocene Dinornithiformes Sophora |
类型 | Article |
语种 | 英语 |
开放获取类型 | gold |
收录类别 | SCI-E |
WOS记录号 | WOS:000741529900001 |
WOS关键词 | UPPER CLUTHA DISTRICT ; SOUTH-ISLAND ; MOA AVES ; VEGETATION HISTORY ; WOODY VEGETATION ; GRASS CUTICLES ; MAUNA-KEA ; COPROLITES ; DIET ; DINORNITHIFORMES |
WOS类目 | Paleontology |
WOS研究方向 | Paleontology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/376958 |
作者单位 | [Pole, Mike] Queensland Herbarium, Brisbane Bot Gardens Mt Coot Tha, Mt Coot Tha Rd, Toowong, Australia |
推荐引用方式 GB/T 7714 | Pole, Mike. A vanished ecosystem: Sophora microphylla (Kowhai) dominated forest recorded in mid-late Holocene rock shelters in Central Otago, New Zealand[J],2022,25(1). |
APA | Pole, Mike.(2022).A vanished ecosystem: Sophora microphylla (Kowhai) dominated forest recorded in mid-late Holocene rock shelters in Central Otago, New Zealand.PALAEONTOLOGIA ELECTRONICA,25(1). |
MLA | Pole, Mike."A vanished ecosystem: Sophora microphylla (Kowhai) dominated forest recorded in mid-late Holocene rock shelters in Central Otago, New Zealand".PALAEONTOLOGIA ELECTRONICA 25.1(2022). |
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